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WO2005112219A1 - Filtre actif - Google Patents

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Publication number
WO2005112219A1
WO2005112219A1 PCT/JP2004/006816 JP2004006816W WO2005112219A1 WO 2005112219 A1 WO2005112219 A1 WO 2005112219A1 JP 2004006816 W JP2004006816 W JP 2004006816W WO 2005112219 A1 WO2005112219 A1 WO 2005112219A1
Authority
WO
WIPO (PCT)
Prior art keywords
current
commercial
inverter
compensation current
amplifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2004/006816
Other languages
English (en)
Japanese (ja)
Inventor
Masaji Haneda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Data Ex Techno Corp
Original Assignee
NTT Data Ex Techno Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Data Ex Techno Corp filed Critical NTT Data Ex Techno Corp
Priority to PCT/JP2004/006816 priority Critical patent/WO2005112219A1/fr
Publication of WO2005112219A1 publication Critical patent/WO2005112219A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/01—Arrangements for reducing harmonics or ripples
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40—Arrangements for reducing harmonics

Definitions

  • the present invention relates to an active filter device that is inserted between a commercial power supply and a load and performs current compensation, power factor improvement, and the like.
  • the present invention also relates to an active filter device having excellent response speed.
  • an inverter power supply is built inside.
  • Equipment incorporating this inverter power supply has features such as quiet power consumption and power saving if switching between 5 OH z and 6 OH Z is not necessary, so its use will be further promoted in the future. It is expected.
  • devices incorporating this inverter power supply are also viewed as having problems such as the deterioration of the power factor of the load due to the harmonic current flowing through the load and the reduction of power use efficiency.
  • Patent Document 1 there is an active filter device described in Patent Document 1 below.
  • the active filter device described in this document includes a compensation capability determiner, a power factor improvement compensation current control circuit, a reactive current compensation current control circuit, a compensation current control circuit, and the like.
  • the excess compensation capability of the compensation current that can be generated by the inverter is determined based on the voltage of the DC power supply connected to the power supply, and the power factor improvement compensation current control circuit matches the excess compensation capability determined by the compensation capability determiner.
  • the reactive current compensation current control circuit calculates the reactive current compensation current corresponding to the surplus compensation capability.
  • the compensation current control circuit calculates the harmonic compensation current and the power factor.
  • a circuit for detecting a fundamental wave current flowing in a power supply system and a harmonic are disclosed.
  • Circuit for detecting current circuit for detecting operating power factor from phase signal of power supply voltage and fundamental wave current
  • circuit for generating compensation current circuit for generating compensation current
  • other various types such as phase inversion circuit, phase shift circuit, adder, multiplier, etc. Since various circuits are used, the configuration of the device is complicated, and the device has a drawback that the device is expensive.
  • the waveform analysis of the signal waveform is indispensable to generate the compensation current, there is a problem that the response speed is slow.
  • an object of the present invention is to provide an active filter device which has a simple device configuration, and does not particularly require any means such as waveform analysis and has an excellent response speed. Disclosure of the invention
  • an inverter for transmitting and drawing a compensation current for compensating a harmonic current generated from a load connected to a commercial power supply, and an inverter connected to a DC side of the inverter.
  • An active filter device comprising: a compensation current supply means serving as a supply source of the compensation current; and a control means for controlling the inverter, wherein the control means detects a current component flowing to the commercial power supply A commercial current detection means, and a commercial voltage detection means for detecting a voltage component of the commercial power supply, a commercial current detection signal detected by the commercial current detection means, and a commercial voltage detection signal detected by the commercial voltage detection means.
  • the inverter is controlled based on the combined signal of the inverter.
  • a commercial current detecting means for detecting a current component flowing to a commercial power supply
  • the control means including commercial voltage detection means for detecting the voltage component of the commercial power supply is based on a composite signal of the commercial current detection signal detected by the commercial current detection means and the commercial voltage detection signal detected by the commercial voltage detection means. To control the inverter.
  • the control means charges the compensation current supply means based on a change in terminal voltage of the compensation current supply means connected to the DC side of the inverter. ⁇ Discharge is controlled. According to this invention, the control means controls charging / discharging of the compensation current supply means based on a change in the terminal voltage of the compensation current supply means connected to the DC side of the inverter.
  • the control means includes: a first amplifier that amplifies the commercial current detection signal; and a second amplifier that amplifies the commercial voltage detection signal. The control of the charge amount of the compensation current supply means is performed by gain control of the second amplifier based on a terminal voltage of the compensation current supply means.
  • control means including the first amplifier for amplifying the commercial current detection signal and the second amplification ⁇ for amplifying the commercial voltage detection signal is based on the terminal voltage of the compensation current supply means.
  • the gain of the second amplifier By controlling the gain of the second amplifier, the charge amount of the compensation current supply means is controlled.
  • the compensation current supply means is constituted by a capacitor.
  • an active filter device can be easily configured using a capacitor.
  • the control means includes: a first amplifier that amplifies the commercial current detection signal; and a second amplifier that amplifies the commercial voltage detection signal. It is characterized in that the control of sending out of the compensation current performed by the inverter is performed by gain control of the first amplifier based on the compensation current.
  • the first amplifier for amplifying the commercial current detection signal and the commercial voltage detection The control means including the second amplifier for amplifying the output signal controls the Z-pull-in of the compensation current, which is performed by the inverter, by controlling the gain of the first amplifier based on the compensation current.
  • the control means includes: a first amplifier that amplifies the commercial current detection signal; a second amplifier that amplifies the commercial voltage detection signal; and a current of the compensation current.
  • compensating current detecting means for detecting a component wherein the control of the amount of charge of the compensating current supplying means is performed by controlling the gain of the second amplifier based on the terminal voltage of the compensating current supplying means.
  • the control of the output of the compensation current and the Z-pull-in performed by the inverter is performed by gain control of the first amplifier based on the current component detected by the compensation current detection means.
  • the control means including the first amplifier for amplifying the commercial current detection signal and the second amplifier for amplifying the commercial voltage detection signal comprises: By controlling the gain of the second amplifier, the charge amount of the current supply means is controlled. Further, the control means controls transmission and pull-in of the compensation current performed by the inverter by performing gain control of the first amplifier based on the compensation current.
  • an inverter for transmitting / drawing in a compensation current for compensating for a phase lag advance current generated from a load connected to a commercial power supply, and a DC side of the inverter.
  • an active filter device comprising: a compensating current supply unit connected as a supply source of the compensation current; and a control unit for controlling the inverter, the control unit converts a current component flowing to the commercial power supply into A commercial current detection means for detecting the voltage component of the commercial power supply, a commercial current detection signal detected by the commercial current detection means, and a commercial voltage detection signal detected by the commercial voltage detection means.
  • the inverter is controlled based on a combined signal with the signal.
  • control means including the commercial current detecting means for detecting the current component flowing to the commercial power supply and the commercial voltage detecting means for detecting the voltage component of the commercial power supply, Current detection signal and commercial voltage detected by commercial voltage detection means
  • the inverter is controlled based on the combined signal with the detection signal.
  • control means is configured to charge the compensation current supply means based on a change in terminal voltage of the compensation current supply means connected to the DC side of the inverter. Controlling z discharge.
  • the control means controls the charge Z discharge of the compensation current supply means based on the change in the terminal voltage of the compensation current supply means connected to the DC side of the inverter.
  • the control means includes: a first amplifier that amplifies the commercial current detection signal; a second amplifier that amplifies the commercial voltage detection signal; A compensating current detecting means for detecting a current component of the current, wherein a control of a charge amount of the compensating current supplying means is based on a terminal voltage of the compensating current supplying means.
  • the compensation is performed by the inverter, and the control of the sending and drawing of the compensation current performed by the inverter is performed by a gain control of the first amplifier based on a current component detected by the compensation current detection unit.
  • the control means including the first amplifier for amplifying the commercial current detection signal and the second amplifier for amplifying the commercial voltage detection signal is based on the terminal voltage of the compensation current supply means.
  • the gain of the second amplifier the charge amount of the compensation current supply means is controlled.
  • the control means controls the sending / drawing-in of the compensation current performed by the inverter by the IJ gain control of the first amplifier based on the compensation current.
  • FIG. 1 is a diagram showing a circuit configuration according to an embodiment of the present invention.
  • FIG. 2A is a diagram showing waveforms of a voltage signal or a current signal of a main part of the active filter device, and FIG. The figure shows the waveform of the input signal to the bidirectional inverter.
  • the figure 3 shows that the commercial current is improved by the compensation current of the bidirectional inverter INV 1 when a load current containing harmonics flows through the load.
  • Fig. 4 shows how the phase lag is improved by the compensation current of the bidirectional inverter INV1 when a phase lag current with a phase lag flows through the load.
  • FIG. 1 is a diagram showing a circuit configuration according to an embodiment of the present invention.
  • an active filter device 10 having an input terminal and an output terminal includes a voltage transformer PT, current transformers CT1 and CT2, variable gain voltage control amplifiers AGCl and AGC2, an inverting circuit PR1 and It has an adder circuit SUM1, a bidirectional inverter I NV1, a diode D1, and capacitors C1 and C2.
  • a commercial power supply is connected to the input terminal of the active filter device 10, and a load is connected to the output terminal.
  • the voltage transformer PT has a primary winding and a secondary winding.
  • the primary winding of the voltage transformer PT is connected to a power supply line in the active filter device 10.
  • the secondary winding is connected to the inverting circuit PR1.
  • the current transformer CT1 is connected to one end of the power supply line in the active filter device 10 so as to detect a current flowing through the power supply line without being inserted into the power supply line.
  • the summing circuit SUM 1 has its input side connected to the variable gain voltage control amplifier AGC 1 connected to the current transformer CT 1 and the variable gain voltage control amplifier AGC 2 connected to the inverting circuit PR 1, and has both output sides.
  • Inverter I Connect to NV1.
  • the bidirectional inverter INV 1 has a pair of DC terminals DT 1 and DT 2 and a pair of AC terminals AT 1 and AT 2.
  • the AC side terminal AT1 of the bidirectional inverter INV1 is connected to one power supply line, and the AC side terminal AT2 is connected to the other power supply line.
  • the DC terminal DT 1 of the bidirectional inverter INV 1 The DC terminal DT2 is connected to the other end of the capacitor C1 (the ground terminal which is also grounded to the circuit ground).
  • One end of the capacitor C1 connected to the DC terminal DT1 of the bidirectional inverter INV1 is also connected to the variable gain voltage control amplifier AGC2.
  • a current transformer CT2 connected to the diode D1 node; Connected by The force sword of the diode D1 is connected to the variable gain voltage control amplifier AGC1 and also to one end of the capacitor C2. The other end of the capacitor C2 is set to the circuit ground similarly to the capacitor C1.
  • I1, ⁇ 2, and I3 shown in the figure represent a commercial current flowing on the commercial power supply side, an inverter current output from the bidirectional inverter I NV1, and a load current flowing on the load side, respectively.
  • the current transformer CT1 detects the current flowing through the load without being inserted into the power supply line, and does not affect the operation between the commercial power supply and the load. Therefore, when the active filter device 10 does not act on the commercial power supply or the load, that is, when the inverter current I2 does not flow, the commercial current becomes the load current as it is.
  • a voltage transformer ⁇ detects a power supply voltage Vin supplied from a commercial power supply
  • a current transformer CT 1 detects a commercial current 11 flowing in a power supply line.
  • the voltage signal detected by the voltage transformer PT is inverted by the inverting circuit PR1, and is input to the variable gain voltage control amplifier AGC2.
  • the current signal detected by the current transformer CT 1 is directly input to the variable gain voltage control amplifier AGC 1.
  • These signals are amplified by the variable gain voltage control amplifiers AGC1 and AGC2, added by the addition circuit SUM1, and output from the addition circuit SUM1 as an input signal to the bidirectional inverter I NV1. .
  • the capacitor C1 connected to the DC terminals DT1 and DT2 of the bidirectional inverter INV1 is for holding a predetermined DC voltage. Further, the capacitor C 1 is a supply source of the inverter current I 2 that the bidirectional inverter INV 1 flows through the power supply line. In the capacitor C1, a charging operation and a discharging operation are performed alternately according to the direction in which the inverter current I2 flows. That is, when the inverter current I2 is in the direction shown in Fig. 1 (when the inverter current I2 operates so as to supply the inverter current I2 to the commercial current I1), the capacitor C1 performs a discharging operation. When the inverter current I2 is opposite to the direction shown in Fig. 1 (when the inverter current I2 is drawn from the commercial current I1), the capacitor C1 performs a charging operation.
  • a predetermined voltage is generated based on the output signal that is output, and the predetermined inverter current I from AC side terminal AT 1 2 flows and is supplied to the power line.
  • 1 3 1 1 + 1 2 between the commercial current I 1, the inverter current I 2 and the load current I 3.
  • the inverter current I2 takes charge of these harmonic currents and the phase-lagging / leading current, and the The waveform of the current I1 can be improved.
  • the power factor on the commercial power supply side can be improved and the usage efficiency can be improved.
  • the operation of supplying the inverter current I2 will be described later.
  • the current transformer CT2 detects the current of the inverter current I2 supplied by the bidirectional inverter INV1. This detection current is charged to the capacitor C2 through the diode D1. The voltage charged in the capacitor C2 is used as a control signal for the variable gain voltage control amplifier AGC1. This control signal is used as a current drooping control signal for the inverter current I 2, that is, when the inverter current I 2 exceeds the allowable capacity that the bidirectional inverter INV 1 can supply, the inverter current I 2 is suddenly cut off. (Not supplied to the power line).
  • the gain of the variable gain voltage control amplifier AGC1 is reduced, and the signal supplied to the addition circuit SUM1 is reduced.
  • the voltage charged in the capacitor C2 is determined at predetermined intervals based on a capacitance value of the capacitor C2, a time constant determined by a resistor (not shown), an input impedance of the variable gain voltage control amplifier AGC1, and the like. (Eg, every commercial power cycle). .
  • the voltage charged in the capacitor C1 is used as a control signal for the variable gain voltage control amplifier AGC2.
  • This control signal is supplied to the variable gain voltage control amplifier AGC2 for controlling the amount of charge charged in the capacitor C1.
  • the inverter current I2 when the output from the adding circuit SUM1 is negative, the capacitor C1 is charged, and conversely, when the output from the adding circuit SUM1 is positive. In this case, a discharge current flows from the capacitor C1. Therefore, when the voltage of the capacitor C1 is large, the gain of the variable gain voltage control amplifier AGC '2 is controlled to decrease. Conversely, when the voltage of the capacitor C1 is small, the variable gain voltage control amplifier AGC2 is controlled.
  • variable gain voltage control pump AGC1 is rapidly controlled based on the voltage of the capacitor C2
  • the gain of the variable gain voltage control pump AGC2 is changed according to the terminal voltage of the capacitor C1. It is controlled continuously.
  • FIG. 2 is a diagram showing a waveform of a voltage signal or a current signal of a main part of the active filter device 10, and FIG. 2B is a diagram showing a waveform of an input signal to the bidirectional inverter INV1.
  • a portion shown by a thin solid line, that is, a signal K1 is a voltage signal of a commercial power supply detected by the voltage transformer PT.
  • the portion indicated by the thick line and the solid line, that is, the signal K2 is a current signal detected by the current transformer CT1.
  • the signal K3 in the signal K2, which is the current signal, is due to the harmonic current generated in the load.
  • the portion shown by the broken line that is, the signal 4 is an inverted waveform inverted by the inverting circuit PR1.
  • Signal 2 is input to the variable gain voltage control amplifier AGC 1 and signal 4 is input to the variable gain voltage control amplifier AGC 2 so that the variable gain voltage control amplifier AGC 1 and the variable gain voltage control amplifier AGC 2 each have a predetermined gain.
  • the signal shown in FIG. 2B is output from the adder circuit SUM1.
  • the inverter current I2 proportional to the current shown in the figure is supplied from the bidirectional inverter INV1 toward the power supply line. You.
  • the inverter current .I2 proportional to the current shown in the figure is drawn from the power supply line to the bidirectional inverter INV1. More specifically, referring to FIG. 2B, the current is extracted in the shaded L1 portion, and the current is supplied in the shaded L2 portion.
  • the capacitor C1 performs charging or discharging operations, respectively. That is, in the portion of L1, the capacitor C1 is charged by the inverter current I2 drawn from the power supply line, and in the portion of L2, the inverter current I2 toward the power supply line is discharged by the current discharged from the capacitor C2. Is supplied.
  • FIG. 3 is an explanatory diagram showing how the commercial current is improved by the compensation current of the bidirectional inverter I NV1 when a load current including harmonics flows through the load.
  • (a) shows the waveform of the power supply voltage (V in)
  • (b) shows the waveform of the inverted signal of the power supply voltage of (a)
  • (c) shows the waveform of the load current including harmonics.
  • (D) shows the waveform of the compensation current extracted from the bidirectional inverter INV1, and (e) shows the waveform of the final commercial current.
  • the voltage transformer PT detects the signal shown in FIG. 3 (a), and the inverting circuit PR1 generates the signal shown in FIG. 3 (b).
  • the current transformer CT 1 detects the signal shown in the figure (). This detection signal is obtained by detecting the commercial current I 1 at the moment when the load current I 3 including the harmonic flows on the commercial power supply side.
  • the signals shown in FIGS. 3B and 3C are respectively input to the variable gain voltage control amplifier AGC 2 and the variable gain voltage control amplifier AGC 1 and the variable gain voltage control amplifier AG C 1 and the gain of the variable gain voltage control amplifier AGC 2 are properly controlled. Then, according to the above-described operation, the compensation current (inverter current 12) shown in FIG.
  • 11D is supplied from the bidirectional inverter INV1 to the power supply line.
  • the load current I3 including the harmonic current flows to the load and the harmonic current flows to the commercial power supply
  • a change in the commercial current I1 on the commercial power supply is detected, and this change component is detected.
  • the commercial current I1 a current having a sinusoidal waveform as shown in FIG.
  • FIG. 4 is an explanatory diagram showing how the phase lag is improved by the compensation current of the bidirectional inverter I NV1 when a phase lag current with a phase lag flows through the load.
  • (a) shows the waveform of the power supply voltage (V in)
  • (b) shows the waveform of the inverted signal of the power supply voltage of (a)
  • (c) shows the waveform of the delay current
  • (d) Shows the waveform of the compensation current extracted from the bidirectional inverter INV1
  • (e) shows the waveform of the final commercial current.
  • the same operation as when a harmonic current flows on the commercial power supply side is performed, and the waveform on the commercial power supply side is improved by the compensation current of the bidirectional inverter INV1.
  • This waveform improvement is performed by the compensation current of the bidirectional inverter 1 NV1, so that the current flowing to the load may be any waveform current.
  • the waveform of the commercial current can be improved even if the current flowing through the load is a leading current, or if the harmonic current and the lagging current or the leading current occur simultaneously.
  • an appropriate inverter current I 2 according to the capability of the bidirectional inverter INV 1 can be supplied to the power supply line.
  • an inverter that sends out a compensation current for compensating for a harmonic current generated from a load connected to a commercial power supply, and a Z-pull-in inverter, and is connected to the DC side of the inverter
  • a control means provided with a commercial current detecting means and a commercial voltage detecting means for controlling the inverter.
  • the commercial current detecting means detects the commercial current detected by the commercial current detecting means.
  • the inverter is controlled based on the combined signal of the signal and the commercial voltage detection signal detected by the commercial voltage detection means, no matter what kind of waveform current flows to the commercial power supply due to the current flowing to the load This also has the effect that the waveform of the commercial current can be improved.
  • control means controls the charge / discharge of the compensation current supply means based on a change in the terminal voltage of the compensation current supply means connected to the DC side of the inverter. This has the effect that control of the compensation current according to the supply capability of the compensation current supply means can be realized.
  • control means including the first amplifier for amplifying the commercial current detection signal and the second amplifier for amplifying the commercial voltage detection signal is based on the terminal voltage of the current supply means.
  • controlling the amount of charge of the current supply means by controlling the gain of the second amplifier, and transmitting the compensation current performed by the inverter by controlling the gain of the first amplifier based on the compensation current. Since the pull-in control is performed, there is no need to perform waveform analysis or the like, and it is possible to achieve an excellent response speed and an effect that the device can be configured simply and inexpensively.
  • the control stage here is the voltage transformer PT, current transformer CT1, C ⁇ 2, variable gain amplifier AGC]., AGC2, inverting circuit PR1, adding circuit SUM1, capacitor Cl, Implemented by diode D1.
  • the commercial current detection means here corresponds to the current transformer CT1.
  • the commercial voltage detection means corresponds to the voltage transformer PT
  • the compensation current supply means corresponds to the capacitor C1
  • the first amplifier corresponds to the variable gain amplifier AGC2
  • the second amplifier corresponds to the variable gain amplifier AGC1.
  • the present invention is useful as an active filter device that is inserted between a commercial power supply and a load to perform current compensation, power factor improvement, and the like.
  • This function is suitable for simply configuring functions to perform such functions as to ensure excellent response speed performance.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

Un filtre actif comprend un inverseur bidirectionnel (INV1) destiné à fournir/à faire entrer un courant de compensation utilisé pour compenser un courant harmonique généré à partir d'une charge reliée à une alimentation du commerce, un condensateur (C1) relié au côté continu de l'inverseur bidirectionnel (INV1) et servant d'alimentation en courant de compensation, un transformateur de courant (CT1) destiné à détecter une composante de courant circulant dans l'alimentation du commerce, ainsi qu'un transformateur de tension (PT) destiné à détecter la composante de tension de l'alimentation du commerce. L'inverseur bidirectionnel (INV1) est commandé en fonction d'un signal de synthèse d'un signal de détection du courant de l'alimentation du commerce détecté par le transformateur de courant (CT) et d'un signal de détection de la tension de l'alimentation du commerce détectée par le transformateur de tension (PT).
PCT/JP2004/006816 2004-05-13 2004-05-13 Filtre actif Ceased WO2005112219A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/006816 WO2005112219A1 (fr) 2004-05-13 2004-05-13 Filtre actif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/006816 WO2005112219A1 (fr) 2004-05-13 2004-05-13 Filtre actif

Publications (1)

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WO2005112219A1 true WO2005112219A1 (fr) 2005-11-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009153696A1 (fr) * 2008-06-17 2009-12-23 Philips Intellectual Property & Standards Gmbh Circuit et procédé de compensation d'harmonique pour unité de lampe à del
CN101924368A (zh) * 2010-09-08 2010-12-22 山东山大华天科技股份有限公司 一种有源电力滤波器装置及其控制方法
US20120326497A1 (en) * 2009-08-25 2012-12-27 Thales Electrical Network of an Aircraft and Method of Operation of the Electrical Network

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0713647A (ja) * 1993-06-25 1995-01-17 Mitsubishi Electric Corp 電圧変動抑制装置
JPH1014109A (ja) * 1996-06-27 1998-01-16 Sansha Electric Mfg Co Ltd アクテイブフィルタ
JPH11275761A (ja) * 1998-03-24 1999-10-08 Shizuki Electric Co Inc アクティブフィルタ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0713647A (ja) * 1993-06-25 1995-01-17 Mitsubishi Electric Corp 電圧変動抑制装置
JPH1014109A (ja) * 1996-06-27 1998-01-16 Sansha Electric Mfg Co Ltd アクテイブフィルタ
JPH11275761A (ja) * 1998-03-24 1999-10-08 Shizuki Electric Co Inc アクティブフィルタ装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009153696A1 (fr) * 2008-06-17 2009-12-23 Philips Intellectual Property & Standards Gmbh Circuit et procédé de compensation d'harmonique pour unité de lampe à del
CN102067405A (zh) * 2008-06-17 2011-05-18 皇家飞利浦电子股份有限公司 用于led光单元的谐波补偿电路和方法
JP2011524621A (ja) * 2008-06-17 2011-09-01 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Ｌｅｄ照明ユニットのための高調波補償回路及び方法
CN102067405B (zh) * 2008-06-17 2013-11-20 皇家飞利浦电子股份有限公司 用于led光单元的谐波补偿电路和方法
US9088172B2 (en) 2008-06-17 2015-07-21 Koninklijke Philips N.V. Harmonic compensation circuit and method for an LED light unit
US20120326497A1 (en) * 2009-08-25 2012-12-27 Thales Electrical Network of an Aircraft and Method of Operation of the Electrical Network
US9425624B2 (en) * 2009-08-25 2016-08-23 Thales Electrical network of an aircraft and method of operation of the electrical network
CN101924368A (zh) * 2010-09-08 2010-12-22 山东山大华天科技股份有限公司 一种有源电力滤波器装置及其控制方法

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