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WO2018016707A1 - Dispositif d'évaluation de la stabilité d'isolation d'un véhicule électrique - Google Patents

Dispositif d'évaluation de la stabilité d'isolation d'un véhicule électrique Download PDF

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Publication number
WO2018016707A1
WO2018016707A1 PCT/KR2017/001571 KR2017001571W WO2018016707A1 WO 2018016707 A1 WO2018016707 A1 WO 2018016707A1 KR 2017001571 W KR2017001571 W KR 2017001571W WO 2018016707 A1 WO2018016707 A1 WO 2018016707A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
power
test
current
unit
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/KR2017/001571
Other languages
English (en)
Korean (ko)
Inventor
채현병
이창준
배진민
권건안
여운석
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.)
CTI KOREA Co Ltd
KOREA TRANSPORTATION SAFETY AUTHORITY
Original Assignee
CTI KOREA Co Ltd
KOREA TRANSPORTATION SAFETY AUTHORITY
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 CTI KOREA Co Ltd, KOREA TRANSPORTATION SAFETY AUTHORITY filed Critical CTI KOREA Co Ltd
Priority to CN201780001617.7A priority Critical patent/CN107820571B/zh
Publication of WO2018016707A1 publication Critical patent/WO2018016707A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40—Testing power supplies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing

Definitions

  • the present invention relates to an electric vehicle insulation stability evaluation device, and more particularly, in order to evaluate the insulation stability of the electric vehicle under test, while supplying a DC test power to the electric vehicle according to the state of the electric vehicle,
  • the present invention relates to an electric vehicle insulation stability evaluation device that evaluates in real time through test power analysis.
  • the general configuration of a conventional test apparatus is stabilized a DC voltage through a DC / DC converter, such as a capacitor, a zener diode from a DC power input, and then converts the voltage into an AC power through a switch and then transforms the transformer or After converting AC voltage through the circuit of oscillator, convert it into DC power through rectifier circuit and output it as test power.
  • a DC / DC converter such as a capacitor, a zener diode from a DC power input
  • the power unit of the existing test apparatus has a large variation in the multi-output control apparatus, it is common to configure the high voltage, low voltage, and large current converters separately according to the magnitude of the output voltage.
  • the conventional test apparatus has a problem that the electric vehicle to be tested may fail by testing the condition of the electric vehicle to be tested in excess of a condition that the test object can withstand in real time.
  • the problem to be solved by the present invention is to overcome the above problems, it is possible to consider the state of the electric vehicle under test in the supply of DC test power while measuring the state of the electric vehicle under test in real time.
  • the present invention relates to an electric vehicle insulation stability evaluation device, in the electric vehicle insulation stability evaluation device, receiving a DC power source and a voltage and current value of the DC test power supply to supply a DC test power to the electric vehicle under test.
  • Input unit 100 DC voltage stabilization unit 200 for pre-purifying the DC voltage of the DC power input from the input unit 100 for a stable DC voltage supply; Stabilized by the DC voltage stabilization unit 200 based on the voltage and current value of the DC test power generated from the output unit 400 and the voltage and current value of the DC test power inputted through the input unit 100.
  • a converter 300 converting the DC power into a voltage and a current of the DC test power to be output through the output unit; And outputting the DC test power converted by the conversion unit 300 and analyzing the DC test power output to measure the insulation resistance and electrical continuity of the electric vehicle under test, based on the insulation resistance and the electrical continuity. And an output unit 400 generating a voltage and a current value of a DC test power supply and feeding it back to the converter 300.
  • the input unit 100 a DC power input unit 110 for receiving a DC power to supply a DC test power to the electric vehicle under test; And a test voltage / current input unit 120 for receiving a voltage and a current value of the DC test power supply.
  • the conversion unit 300 includes a DC / AC converter 310 for converting the DC power stabilized through the DC voltage stabilizer 200 into AC power;
  • An AC / AC converter 320 for converting the AC power converted through the DC / AC converter 310 according to a command from the conversion controller 340;
  • An AC / DC converter 330 for converting AC power converted through the AC / AC converter 320 into DC power;
  • the AC / AC converter 320 converts the AC / AC converter 320 into a voltage or a current of the DC test power calculated by the test voltage / current converter 350 so as to convert the power or the current of the AC power.
  • Conversion control unit 340 for controlling; And a direct current to be output through the output unit 400 based on the voltage and current values of the DC test power fed back from the output unit 400 and the voltage and current values of the DC test power input through the input unit 100.
  • the voltage and current values of the test power supply are determined, and when the measurement stop signal is received from the output unit 400, the AC / AC converter 320 is controlled through the conversion controller 340 to control the AC / AC.
  • a test voltage / current converter 350 for changing the voltage and current of the AC power output from the converter 320 to zero.
  • the output unit 400 a DC power output unit 410 for outputting the DC test power converted through the conversion unit 300; And measuring the insulation resistance and electrical continuity of the electric vehicle under test through the DC test power output through the DC power output unit 410, and measuring the insulation resistance and the electrical continuity and the DC power output unit 410.
  • test voltage / current generator 424 which transmits a signal to stop the measurement when the electrical continuity is included in a specific band to the test voltage / current converter 350.
  • the present invention in consideration of the state of the electric vehicle under test in supplying the DC test power while measuring the state of the electric vehicle under test in real time, the effect of remarkably reducing the possibility of problems in the test object during the measurement. There is.
  • FIG. 1 is a block diagram illustrating a conventional electric vehicle insulation stability evaluation apparatus.
  • FIG. 2 is a block diagram illustrating an electric vehicle insulation stability evaluation apparatus according to an embodiment of the present invention.
  • FIG. 3 is a block diagram illustrating a detailed configuration of the input unit 100 of the electric vehicle insulation stability evaluation apparatus according to an embodiment of the present invention.
  • FIG. 4 is a block diagram showing the detailed configuration of the conversion unit 300 of the electric vehicle insulation stability evaluation apparatus according to an embodiment of the present invention.
  • FIG. 5 is a block diagram showing the detailed configuration of the output unit 400 of the electric vehicle insulation stability evaluation apparatus according to an embodiment of the present invention.
  • FIG. 6 is a block diagram showing the detailed configuration of the output feedback unit 420 of the electric vehicle insulation stability evaluation apparatus according to an embodiment of the present invention.
  • FIG. 2 is a block diagram illustrating an electric vehicle insulation stability evaluation apparatus according to an embodiment of the present invention.
  • a DC power is input to supply a DC test power to an electric vehicle under test, and a voltage and a current value of the DC test power.
  • DC test generated from the DC voltage stabilization unit 200 and the output unit 400 for pre-purifying the DC voltage of the DC power input from the input unit 100 to supply the input unit 100 and the stable DC voltage input Based on the voltage and current values of the power supply and the voltage and current value of the DC test power inputted through the input unit 100, the DC power stabilized through the DC voltage stabilizer 200 to be output through the output unit DC test
  • a preferred embodiment of the input DC power is a battery power.
  • a preferred embodiment in which the DC voltage stabilization unit 200 stabilizes the DC voltage is to use a DC / DC converter using a zener diode or the like.
  • the high voltage, the low voltage, and the large current converter are generally configured separately according to the magnitude of the output voltage, but the converter 300 is a test object and a test type (insulation resistance measurement and electrical Since the test voltage and the test current need to be linked and converted according to the continuity measurement), the high voltage-low voltage-high current conversion module is configured to be linked to each other and to be controlled.
  • FIG. 3 is a block diagram illustrating a detailed configuration of the input unit 100 of the electric vehicle insulation stability evaluation apparatus according to an embodiment of the present invention.
  • the input unit 100 inputs the voltage and current values of the DC power input unit 110 and the DC test power input receiving the DC power to supply the DC test power to the electric vehicle under test. Receiving test voltage / current input unit 120.
  • FIG. 4 is a block diagram showing the detailed configuration of the conversion unit 300 of the electric vehicle insulation stability evaluation apparatus according to an embodiment of the present invention.
  • the conversion unit 300 converts the DC power stabilized through the DC voltage stabilization unit 200 into an AC power and the DC / AC conversion unit 310 and the DC /
  • the AC power converted by the AC converter 310 is converted by the AC / AC converter 320 and the AC / AC converter 320 to convert voltage or current according to the command of the conversion controller 340.
  • the AC / AC converter 320 converts the AC power into DC power by using the voltage and current of the DC test power calculated by the AC / DC converter 330 and the test voltage / current converter 350.
  • DC / AC converter 310 converts DC power into AC power is to convert through a switch.
  • a preferred embodiment of converting the voltage or current of the AC power supply through the AC / AC converter 320 is to convert it through a circuit such as a transformer or an oscillator.
  • AC / DC converter 330 converts AC power into DC power is to convert it through a rectifier circuit.
  • test voltage / current converter 350 determines the values of the voltage and current of the DC test power to be output through the output unit 400 is a direct current input through the input unit 100. Dividing the voltage and current values of the test power supply into 5 to 10 steps, and if there is no voltage and current value of the DC test power fed back from the output unit 400, the DC and DC current values correspond to the step 1 of the steps. If it is determined that the test power is output and the voltage and current value of the DC test power input through the input unit 100 is smaller than the voltage and current value of the DC test power fed back from the output unit 400, the next step.
  • the DC test power is output with a voltage and current value corresponding to the input unit 100 rather than the voltage and current values of the DC test power fed back from the output unit 400.
  • the voltage and current value of the DC test power input through the large value is smaller than the voltage and current value of the DC test power fed back from the output unit 400 and outputs the DC test power with the voltage and current value corresponding to the next step If there is no next step, it is decided to output DC test power with the voltage and current value corresponding to the previous step.
  • the reason for changing the voltage and current of the AC power output from the AC / AC converter 320 to 0 is because the DC test power output through the output unit 400 becomes 0 and the measurement is stopped. to be.
  • FIG. 5 is a block diagram showing the detailed configuration of the output unit 400 of the electric vehicle insulation stability evaluation apparatus according to an embodiment of the present invention.
  • the output unit 400 includes a DC power output unit 410 and a DC power output unit 410 for outputting the DC test power converted through the conversion unit 300. Measuring the insulation resistance and electrical continuity of the test target electric vehicle through the DC test power output through the, and the insulation resistance and the electrical continuity and the voltage of the DC test power output through the DC power output unit 410 And after determining the voltage and current of the DC test power supply based on the current, transfer the determined voltage and current of the DC test power supply to the test voltage / current converter 350, wherein the insulation resistance and the electrical continuity are included in a specific band. In this case, the output feedback unit 420 transfers a signal to stop the measurement to the test voltage / current converter 350.
  • FIG. 6 is a block diagram showing the detailed configuration of the output feedback unit 420 of the electric vehicle insulation stability evaluation apparatus according to an embodiment of the present invention.
  • the output feedback unit 420 calculates an insulation resistance of the electric vehicle under test through the DC test power output through the DC power output unit 410. 421 and an electrical continuity calculation unit 422 for measuring electrical continuity of the electric vehicle under test through the DC test power outputted through the DC power output unit 410 and the insulation resistance and the electrical continuity.
  • the insulation resistance and the electrical continuity and the DC power output unit when the insulation resistance and the electrical continuity are not included in a specific band through the determination unit 423 and the determination unit 423 for determining whether they are included in a specific band. After determining the voltage and current of the DC test power based on the voltage and current of the DC test power output through 410, determine the voltage and current of the determined DC test power.
  • the test voltage / current converter 350 feeds back a test voltage / current converter 350 and stops the measurement when the insulation resistance and the electrical continuity are included in a specific band through the determiner 423. It consists of a test voltage / current generator 424 to transmit to.
  • preferred embodiments of the specific band for the insulation resistance and the electrical continuity for transmitting the signal to the test voltage / current converter 350 to stop the measurement by the test voltage / current generator 424 are 3 to 3. If the band is set to 5 times and judged by setting the band of 5 times, the test is stopped if it does not exceed 5 times the value of 100 ⁇ / Vdc or 500 ⁇ / Vac, the standard of insulation resistance during the test. The test is stopped when it is larger than 0.02 ⁇ which is 5 times of the standard below.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

La présente invention concerne un dispositif d'évaluation de la stabilité d'isolation d'un véhicule électrique et, plus particulièrement, un dispositif d'évaluation de la stabilité d'isolation d'un véhicule électrique qui réduit de manière significative la possibilité qu'un problème se produise chez un sujet testé pendant une mesure en évaluant un état d'un véhicule électrique en temps réel par l'intermédiaire d'une analyse de puissance de test en courant continu, tandis que la puissance de test en courant continu est fournie au véhicule électrique en fonction de l'état du véhicule électrique de façon à évaluer la stabilité d'isolation du véhicule électrique qui est le sujet testé, et en prenant en compte l'état du véhicule électrique qui est le sujet testé au moment de la fourniture de la puissance de test en courant continu.
PCT/KR2017/001571 2016-07-22 2017-02-14 Dispositif d'évaluation de la stabilité d'isolation d'un véhicule électrique Ceased WO2018016707A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780001617.7A CN107820571B (zh) 2016-07-22 2017-02-14 电动汽车绝缘稳定性评价装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160093448A KR101677553B1 (ko) 2016-07-22 2016-07-22 전기적 연속성과 절연저항 측정을 통한 전기자동차 절연안정성 평가 장치
KR10-2016-0093448 2016-07-22

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KR101940190B1 (ko) 2017-06-28 2019-01-18 주식회사 바로텍시너지 전자탑재장비 및 케이블 저항시험이 가능한 다용도 절연저항 측정장치
KR101918493B1 (ko) * 2017-11-29 2018-11-14 씨티아이코리아 주식회사 친환경 자동차용 전기적 안전성 종합 검사장비
KR102313478B1 (ko) 2020-03-27 2021-10-15 씨티아이코리아 주식회사 Ess 운영중 전기적 안전성 평가장치를 이용한 평가방법
KR102792348B1 (ko) * 2022-10-06 2025-04-08 주식회사 경신 플레팅 마모 시험장치
KR102876197B1 (ko) 2024-11-07 2025-10-27 씨티아이코리아 주식회사 Ess의 성능 저하 패턴 추정을 통한 전기적 안전성 평가장치

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KR20100104139A (ko) * 2009-03-16 2010-09-29 주식회사 크라또 절연 저항 측정 시스템 및 절연 저항 측정 장치
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CN107820571A (zh) 2018-03-20
KR101677553B1 (ko) 2016-11-18
CN107820571B (zh) 2019-08-20

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