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WO2010088979A1 - Procédé de régulation d'un convertisseur côté réseau à commutation automatique dans un convertisseur indirect de tension - Google Patents

Procédé de régulation d'un convertisseur côté réseau à commutation automatique dans un convertisseur indirect de tension Download PDF

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Publication number
WO2010088979A1
WO2010088979A1 PCT/EP2009/066018 EP2009066018W WO2010088979A1 WO 2010088979 A1 WO2010088979 A1 WO 2010088979A1 EP 2009066018 W EP2009066018 W EP 2009066018W WO 2010088979 A1 WO2010088979 A1 WO 2010088979A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
converter
value
self
commutated
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/EP2009/066018
Other languages
German (de)
English (en)
Inventor
Reinhold Dillig
Bernd Herrmann
Thomas Schwinn
Benno Weis
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2010088979A1 publication Critical patent/WO2010088979A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC
    • H02M5/42—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
    • H02M5/44—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC
    • H02M5/453—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0025—Arrangements for modifying reference values, feedback values or error values in the control loop of a converter

Definitions

  • the invention relates to a method for controlling a self-commutated mains converter of a voltage source converter according to the preamble of claim 1.
  • turn-off thyristors also referred to as gate turn-off thyristor (GTO thyristor), or power transistors, in particular insulated gate bipolar transistor (IGBT)
  • GTO thyristor gate turn-off thyristor
  • IGBT insulated gate bipolar transistor
  • Mains converter is connected to a supply network by means of coupling reactors. On the output side, a DC voltage is applied to the output terminals of the self-commutated mains converter which can be used as the input voltage of a self-commutated load converter.
  • Such a converter arrangement is referred to as a grid-friendly voltage source inverter.
  • Self-commutated power converters are limited in their input voltage.
  • the maximum input voltage is specified by the degree of modulation and the instantaneous DC link voltage.
  • the self-commutated power converter In the voltage or Aus confusegradbegrenzung the self-commutated power converter is no longer highly dynamic. For all suggestions, poorly damped vibrations may occur.
  • the intermediate circuit voltage is set such that its amplitude corresponds to the peak value of a chained mains voltage.
  • This value is a minimum value of the adjustable DC link voltage. Higher values are freely selectable.
  • the in the self-commutated power converter which is also referred to as Active Front End (AFE)
  • AFE Active Front End
  • the dynamic properties of the drive standing from the voltage source inverter with the grid-side self-commutated power converter and an electric motor that drives a load, for example, be improved in an acceleration process.
  • Increasing the dynamic properties requires an increased DC bus voltage.
  • the maximum achievable intermediate circuit voltage is determined by the switched-off power semiconductor switches used in the line-side and load-side converter of this voltage source converter.
  • a value is selected for the adjustable intermediate circuit voltage, which represents a compromise between the two goals mentioned, namely high efficiency and high dynamics. Therefore, no goal can be optimally achieved.
  • the invention is based on the object to improve the known method for controlling a self-commutated mains converter of a voltage source converter such that both control targets can be optimized separately.
  • the height of the intermediate circuit voltage is no longer given as a constant value but as a time-variable variable, the setpoint value of the intermediate circuit voltage being changed by requirements of a drive during operation, the two control objectives "minimum losses” and “optimum losses” Performance "temporally decoupled from each other.
  • this method according to the invention can be achieved with the drive despite high performance in large time ranges, a reduction of losses, whereby energy is saved.
  • an acceleration request that is required at a request time is already known a predetermined period of time before the request time.
  • the value of the DC voltage setpoint is increased a predetermined period of time before a request time.
  • FIG. 1 shows a circuit arrangement of a known self-commutated mains converter to a feeding network, wherein the
  • FIG 2 shows a block diagram of a known control device of a self-commutated mains converter according to FIG 1, and wherein in the
  • FIG. 3 is a block diagram of a setpoint generator is shown schematically.
  • the circuit of a known self-commutated power converter 2 is from the publication "self-powered power converter with voltage output and low network feedback" by Michael Braun, published in Siemens Research and Development Reports, Vol. 16, 1987, No. 2, pages 55 to 59, known and has according to FIG 1 three phase modules 4, 6 and 8, each with two series-connected power semiconductor switches Tl, T2 and T3, T4 and T5, T6.
  • Each power semiconductor switch Tl to T6 is a diode Dl to D6 inversely electrically connected in parallel.
  • This self-commutated power converter 2 is the AC side by means of a multi-phase coupling reactor 10 with a multi-phase network 12 and the DC side connected to a capacitor 14 electrically conductive.
  • This capacitor 14 is electrically connected in parallel to the terminals 16 and 18 of a DC output of the self-commutated mains current 2.
  • a power semiconductor switch Tl to T6 each turn-off power semiconductor switches are provided so that the power converter 2 can be self-guided.
  • Insulated gate bipolar transistors (IGBT) are used as turn-off power semiconductor switches Tl to T6 in this embodiment.
  • GTO thyristors An embodiment with GTO thyristors is illustrated in the publication mentioned above.
  • the self-commutated power converter 2 is used according to the publication of Michael Braun as a power converter on the network side of a voltage source inverter. By means of this self-commutated mains converter 2, a DC voltage U z is generated at the terminals 16 and 18 of its DC output.
  • the terminals U, V and W are connected according to a pulse pattern with a positive and a negative pole of the DC voltage output.
  • the pulse pattern is generated so that the input voltage of the self-commutated mains converter 2 has a mains frequency fundamental oscillation, which is adjustable in the amplitude and phase.
  • This self-commutated power converter 2 shows a block diagram of a known control device 20 of a self-commutated power converter 2 is shown in more detail.
  • This self-commutated power converter 2 is as in the power converter assembly of the self-commutated power converter 2 of the two publications with a load-side self-commutated converter 22 to a
  • the control device 20 has a voltage detection 26, a phase current detection 28, a DC voltage regulator 30, an active current and a reactive current controller 32 and 34, two transformation means 36 and 38 and a phase sensor 40.
  • the voltage detection 26 determines the DC voltage U z falling across the intermediate circuit capacitor 14, also referred to as intermediate circuit voltage, which is fed as an actual value to an inverting input of a comparator 42, to whose non-inverting input a DC voltage setpoint value U z * is present.
  • this comparator 42 is linked by means of the DC voltage regulator 30 to a non-inverting input of a further comparator 44 whose output is connected to an input of the active current regulator 32.
  • the reactive current controller 34 is also preceded by a comparator 36, at whose non-inverting input a setpoint z * is present for the reactive current portion of the mains current.
  • Phasor 40 is the input side with two network phases R and S and the output side each connected to a phase angle input of the two transformation means 36 and 38.
  • the network angle ⁇ of the circulating mains voltage indicator is continuously determined.
  • the primary-side connections of the phase transmitter 40 and the primary-side connections of the phase current detection 28 can be arranged on any sides of the throttle 10.
  • the current regulation 42 in a coordinate system circulating with the mains frequency.
  • the co-system of the mains voltage is selected, so that the determined with the transformer device 36 current components i d , i q represent directly the active and reactive current portion of the mains current.
  • These two current components i d , i q are each fed as actual values to an inverting input of the comparator 44 and 46.
  • the active and reactive current controllers 32 and 34 are connected on the output side to the second transformation device 38, with which the voltage components u d * , u q * present at the current regulators 32 and 34 are transformed into a spatially fixed coordinate system.
  • a polar coordinate system is provided so that the two components of the converter voltage vector are the modulation level m and the current phase angle ⁇ Umr . From these two setpoint components m, ⁇ Umr of the inverter voltage indicator, control signals S v for the turn-off power semiconductor devices are generated by means of a modulator 48. Switch Tl to T6 of the self-commutated power converter 2 generated.
  • the desired value i d for the active component of the mains current is adapted to the active power consumption or output at the DC output of the self-commutated mains converter 2.
  • FIG. 3 shows a block diagram of a setpoint generator 50 in greater detail.
  • This setpoint generator 50 has a two-channel design.
  • the first channel has a device 52 for determining a concatenated network voltage U RS and, on the output side, a device 54 for determining a peak value of the determined concatenated network voltage U RS .
  • the device 52 is in each case a measured line phase voltage u R and u s .
  • this device 52 is linked to an input of the device 54 for determining a peak value of the chained mains voltage u RS .
  • the ascertained peak value is supplied to an input of a selection device 56 as the minimum DC voltage setpoint value U Zm .
  • the second channel of this setpoint generator 50 has on the input side a device 58, with which an acceleration request ⁇ a is determined.
  • this second channel has a device 60, with which a maximum DC voltage setpoint U Z * m ⁇ a is output.
  • this device 60 has a table with different DC voltage setpoints, which are staggered according to different maximum blocking voltages of the switched-off power semiconductor switches T 1,..., T 6 of the self-commutated power converter 2 and the load-side self-commutated power converter 22.
  • this device 60 is connected to an output of the device 58 for determining ment of an acceleration request ⁇ a linked.
  • this device 58 for determining an acceleration request ⁇ a is a torque setpoint m * , which is determined for example by means of a superimposed speed control.
  • a torque setpoint m * At the output of the device 60 is a selected maximum DC voltage setpoint U Z * m ⁇ a , which is supplied to a second input of the selector 56.
  • This selection device 56 is also supplied with a determined acceleration request ⁇ a. Depending on the
  • the time t an at which an acceleration request ⁇ a is required, is known (process property).
  • a time t A z / a predetermined period of time .DELTA.t is before the time t on , a maximum DC voltage setpoint U Zmw as

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne un procédé de régulation d'un convertisseur côté réseau (2) à commutation automatique dans un convertisseur indirect de tension (24), une bobine de choc étant montée en amont de ce convertisseur côté réseau (2) dans chaque phase réseau (R, S, T). En fonction de deux courants de phase réseau (iR, iS) mesurés, de deux tensions de phase réseau (uR, uS) mesurées, d'une tension de circuit intermédiaire (UZ) mesurée et d'une valeur de consigne de tension continue (U Z ) prédéfinie, des signaux de commande (Sv) pour le commutateur statique de puissance (T1...T6) blocable du convertisseur côté réseau (2) à commutation automatique sont générés de sorte que la tension de circuit intermédiaire (UZ) mesurée soit égale à la valeur de consigne de tension continue (U Z ). Selon l'invention, la valeur de cette valeur de consigne de tension continue (U Z ) est modifiée dans le temps pendant le fonctionnement en fonction d'exigences d'une charge alimentée par ce convertisseur indirect de tension (24). Les deux objectifs de régulation, à savoir des pertes minimales et un rendement optimal, peuvent ainsi être séparés dans le temps, une valeur de consigne de tension continue (U Z ) séparée étant générée pour définir chaque objectif de régulation.
PCT/EP2009/066018 2009-02-09 2009-11-30 Procédé de régulation d'un convertisseur côté réseau à commutation automatique dans un convertisseur indirect de tension Ceased WO2010088979A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009008048.1 2009-02-09
DE102009008048A DE102009008048A1 (de) 2009-02-09 2009-02-09 Verfahren zur Regelung eines selbstgeführten Netzstromrichters eines Spannungszwischenkreis-Umrichters

Publications (1)

Publication Number Publication Date
WO2010088979A1 true WO2010088979A1 (fr) 2010-08-12

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PCT/EP2009/066018 Ceased WO2010088979A1 (fr) 2009-02-09 2009-11-30 Procédé de régulation d'un convertisseur côté réseau à commutation automatique dans un convertisseur indirect de tension

Country Status (2)

Country Link
DE (1) DE102009008048A1 (fr)
WO (1) WO2010088979A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2546969A1 (fr) * 2011-07-14 2013-01-16 Siemens Aktiengesellschaft Procédé de contrôle d'un convertisseur de fréquence et convertisseur de fréquence
EP2528219A3 (fr) * 2010-10-21 2017-08-30 ABB Oy Ensemble formant convertisseur de fréquence
CN113328441A (zh) * 2021-06-25 2021-08-31 深圳市建筑科学研究院股份有限公司 建筑配电系统及市电功率控制方法、市电功率控制器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010001227A1 (en) * 1998-04-02 2001-05-17 Yasuo Notohara Motor controller
US20030053324A1 (en) * 2001-09-14 2003-03-20 Hajime Yamamoto Power conversion device
EP1555744A2 (fr) * 2004-01-14 2005-07-20 Fanuc Ltd Convertisseur de puissance et onduleur comportant un circuit convertisseur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4422275C2 (de) * 1994-06-15 1997-09-25 Abb Daimler Benz Transp Verfahren zum Betrieb von Drehstrommotoren
DE19931199A1 (de) * 1999-07-07 2001-01-18 Daimler Chrysler Ag Verfahren zur Steuerung eines Leistungs-Antriebssystems
DE10303710A1 (de) * 2003-01-30 2004-08-12 Siemens Ag Verfahren und Vorrichtung zur Regelung eines selbstgeführten Netzstromrichters mit Gleichspannungsausgang bei Netzüberspannung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010001227A1 (en) * 1998-04-02 2001-05-17 Yasuo Notohara Motor controller
US20030053324A1 (en) * 2001-09-14 2003-03-20 Hajime Yamamoto Power conversion device
EP1555744A2 (fr) * 2004-01-14 2005-07-20 Fanuc Ltd Convertisseur de puissance et onduleur comportant un circuit convertisseur

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2528219A3 (fr) * 2010-10-21 2017-08-30 ABB Oy Ensemble formant convertisseur de fréquence
EP2546969A1 (fr) * 2011-07-14 2013-01-16 Siemens Aktiengesellschaft Procédé de contrôle d'un convertisseur de fréquence et convertisseur de fréquence
CN102882234A (zh) * 2011-07-14 2013-01-16 西门子公司 用于控制频率转换器的方法和频率转换器
CN113328441A (zh) * 2021-06-25 2021-08-31 深圳市建筑科学研究院股份有限公司 建筑配电系统及市电功率控制方法、市电功率控制器

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