WO2021084584A1 - Convertisseur et système de commande de moteur - Google Patents

Convertisseur et système de commande de moteur Download PDF

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Publication number
WO2021084584A1
WO2021084584A1 PCT/JP2019/042208 JP2019042208W WO2021084584A1 WO 2021084584 A1 WO2021084584 A1 WO 2021084584A1 JP 2019042208 W JP2019042208 W JP 2019042208W WO 2021084584 A1 WO2021084584 A1 WO 2021084584A1
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WO
WIPO (PCT)
Prior art keywords
power
motor
power supply
power failure
detection unit
Prior art date
Application number
PCT/JP2019/042208
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English (en)
Japanese (ja)
Inventor
隆馬 波多野
良知 林
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201980101594.6A priority Critical patent/CN114600360B/zh
Priority to PCT/JP2019/042208 priority patent/WO2021084584A1/fr
Priority to JP2020505935A priority patent/JP6689478B1/ja
Priority to DE112019007758.9T priority patent/DE112019007758B4/de
Priority to TW109136807A priority patent/TWI769563B/zh
Publication of WO2021084584A1 publication Critical patent/WO2021084584A1/fr

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    • 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
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode 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
    • H02M1/0009—Devices or circuits for detecting current in a converter
    • 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
    • H02M5/4585—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 having a rectifier with controlled elements

Definitions

  • regenerative power processing methods There are two types of regenerative power processing methods: a resistance regeneration method in which the regenerative power is consumed by a resistor and a power supply regeneration method in which the regenerative power is returned to the AC power supply.
  • a resistance regeneration method in which the regenerative power is consumed by a resistor
  • a power supply regeneration method in which the regenerative power is returned to the AC power supply.
  • industrial machines such as machine tools and robots are increasingly adopting converters to which the power regeneration method is applied from the viewpoint of energy saving.
  • the converter to which the power regeneration method is applied has a power module including a circuit in which switching elements are connected in parallel to each rectifying element, and by controlling the on / off of each switching element, the regenerated power is converted to an AC power supply. Be supplied.
  • the figure for demonstrating the operation at the time of motor power running in the motor control system which concerns on Embodiment 1. The figure which shows the relationship between the power supply voltage of an AC power source and the current which flows in a converter at the time of motor power running of the motor control system which concerns on Embodiment 1.
  • the corresponding rectifying elements of the rectifying elements D1 to D6 are connected in parallel to each of the switching elements Q1 to Q6.
  • the anode terminal is connected to the emitter terminal of the corresponding switching element of the switching elements Q1 to Q6, and the cathode terminal is connected to the collector terminal of the corresponding switching element of the switching elements Q1 to Q6.
  • the regeneration control unit 32 outputs the base drive signals S RP , S RN , S SP , S SN , S TP , and S TN to the drive circuit 27 as output signals based on the bus current I PN and the bus voltage V PN.
  • the drive circuit 27 amplifies the base drive signals S RP , S RN , S SP , S SN , S TP , and S TN and outputs them to the bases of the switching elements Q1 to Q6.
  • the power supply regeneration operation is executed in the converter 1 by switching the switching elements Q1 to Q6 on and off by the base drive signals S RP , S RN , S SP , S SN , S TP , and S TN. By such a power supply regeneration operation, the regenerative power is output from the converter 1 to the AC power supply 3.
  • Supply phase detector 24 R-phase voltage V R, on the basis of the S-phase voltage V S, and T-phase voltage V T, R-S line voltage V R-S, S-R line voltage V S-R , it detects the voltage between the S-T line V S-T, T-S line voltage V T-S, T-R line voltage V T-R, and R-T line voltage V R-T.
  • the voltage between the R-S line V R-S, S-R line voltage V S-R, S-T line voltage V S-T, T-S line voltage V T-S, T-R line during voltage V T-R, and when indicating each of R-T line voltage V R-T without individually distinguished sometimes simply referred to as a line voltage.
  • Supply phase detector 24 detects the zero-cross point of the line voltages, R-S line between the phase detection signal ⁇ R-S, S-R line between the phase detection signal ⁇ S-R, S-T line between phases generating a detection signal ⁇ S-T, T-S line between the phase detection signal ⁇ -T S, T-R line between the phase detection signal ⁇ T-R, and R-T line between the phase detection signal ⁇ R-T.
  • each line of the power supply phase detection unit 24 has a high level in the phase section where the line voltage is a positive value and a low level in the phase section where the line voltage is a negative value.
  • the base drive signal generation unit 31 can calculate a phase indicating the maximum voltage and a phase indicating the minimum voltage from each line phase detection signal generated by the power supply phase detection unit 24.
  • the base drive signal generation unit 31 generates base drive signals S RP , S RN , S SP , S SN , S TP , and S TN based on the six line phase detection signals output from the power supply phase detection unit 24. To do.
  • switching between on and off of the switching element Q will be referred to as a switching operation, and the current flowing through the switching element Q during the regenerative operation of the converter 1 will be referred to as a regenerative current.
  • FIG. 1 indicated by the direction of the arrow from the AC power source 3 to the converter 1 R-phase current I R, shows the S-phase current I S, and T-phase currents I T, flows in the direction indicated by the arrow Treat the current as a positive current and treat the opposite current as a negative current.
  • the current flowing in the direction from the converter 1 to the motor drive device 4 is treated as a positive current
  • the current in the opposite direction is treated as a negative current.
  • the R-S line voltage V R-S instantaneous value is the largest time t2 second section ⁇ t4 of, and the base drive signals S RP, the S SN to the High level, the remainder of the base Set the drive signal to Low level.
  • the switching element Q1 on the positive side of the R phase and the switching element Q4 on the negative side of the S phase are kept on, and the remaining switching elements are kept off. Therefore, a current flows in the R phase and the S phase via the switching elements Q1 and Q4 that are in the ON state.
  • the R-phase regenerative current Ir R which is the current flowing in the R-phase, flows in the negative direction
  • the S-phase regenerative current Ir S flows in the positive direction.
  • Base drive signal generating unit 31 in the third section of the instantaneous value is the greatest time t4 ⁇ t6 of R-T line voltage V R-T, and the base drive signals S RP, the S TN to High level, the remainder of the base Set the drive signal to Low level.
  • the switching element Q1 on the positive side of the R phase and the switching element Q6 on the negative side of the T phase are kept on, and the remaining switching elements are kept off. Therefore, a current flows between the R phase and the T phase via the switching elements Q1 and Q6 that are in the ON state.
  • the R-phase regenerative current Ir R flows in the negative direction
  • the T-phase regenerative current Ir T flows in the positive direction.
  • the base drive signal generation unit 31 sets the base drive signals S SP and S RN to the high level in the fifth section from time t8 to t10 when the instantaneous value of the SR line voltage VSR is the largest, and sets the remaining bases. Set the drive signal to Low level.
  • the switching element Q3 on the positive side of the S phase and the switching element Q2 on the negative side of the R phase are kept on, and the remaining switching elements are kept off. Therefore, a current flows in the S phase and the R phase via the switching elements Q3 and Q2 that are in the ON state.
  • the S-phase regenerative current Ir S flows in the negative direction
  • the R-phase regenerative current Ir R flows in the positive direction.
  • Base drive signal generating unit 31 in the sixth section of the instantaneous value of the largest time t10 ⁇ t12 of the T-R line voltage V T-R, and the base drive signals S TP, the S RN to High level, the remainder of the base Set the drive signal to Low level.
  • the switching element Q5 on the positive side of the T phase and the switching element Q2 on the negative side of the R phase are kept on, and the remaining switching elements are kept off. Therefore, a current flows between the T phase and the R phase via the switching elements Q5 and Q2 that are in the ON state.
  • the T-phase regenerative current Ir T flows in the negative direction
  • the R-phase regenerative current Ir R flows in the positive direction.
  • the regenerative current flowing between the converter 1 and the AC power supply 3 is limited by the impedance of the reactor 2. Further, even when the switching elements Q1 to Q6 are switched, if the voltage between the terminals of the smoothing capacitor 22 V DC is equal to or less than the power supply voltage VRST of the AC power supply 3, the regenerative current does not flow. The regenerative current flows by utilizing the voltage difference between the terminal voltage VDC of the smoothing capacitor 22 and the power supply voltage VRST of the AC power supply 3.
  • the rectifying elements D3 and D6 are in a conductive state, a current flows through the rectifying element D3 in the direction from the AC power supply 3 to the smoothing capacitor 22, and the rectifying element D6 is connected to the AC power supply from the smoothing capacitor 22. Current flows in the direction toward 3.
  • the rectifying elements D3 and D2 are in a conductive state, a current flows through the rectifying element D3 in the direction from the AC power supply 3 to the smoothing capacitor 22, and the rectifying element D2 is connected to the AC power supply from the smoothing capacitor 22. Current flows in the direction toward 3.
  • the regenerative control unit 32 of the converter 1 has base drive signals S RP , S RN , S SP , S SN , The S TP and S TN are output to the drive circuit 27, and the power supply regeneration operation by the switching operation of the power module 21 is started.
  • the power supply regeneration operation by the switching operation is started in the converter 1
  • the DC power of the smoothing capacitor 22 is converted into AC power by each switching element Q of the power module 21, and the converted AC power is a reactor as the regenerated power. It is output to the AC power supply 3 via 2.
  • the first counter value N1 can also be called an overcurrent counter value of the rectifying element D.
  • the second counter value N2 can also be called an overcurrent counter value of the switching element Q.
  • the power failure detection unit 33A outputs counter information including the first counter value N1 and the second counter value N2 to the host control device 6.
  • the power failure detection unit 33A can also output counter information including the counter value counted up from the first counter value N1 and the second counter value N2 to the host control device 6.
  • Power failure detecting section 33A when the absolute value of the bus current I PN is the second threshold Ith2 less during the first hour Tth1, the first counter value N1 is counted up if the sign of the bus current I PN positive If the sign of the bus current I PN is negative, the second counter value N2 is counted up.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Rectifiers (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

L'invention concerne un convertisseur (1) pourvu d'un module de puissance (21), d'un condensateur de filtrage (22), d'une unité de détection de courant de ligne omnibus (25) et d'une unité de commande (26). Le module de puissance (21) redresse la tension alternative fournie par une alimentation en courant alternatif (3) et émet la tension redressée à partir d'une borne d'alimentation en courant continu (14). L'unité de détection de courant de ligne omnibus (25) détecte un courant de ligne omnibus qui est le courant circulant entre la borne d'alimentation en courant continu (14) et le condensateur de filtrage (22). L'unité de commande (26) commande plusieurs éléments de commutation (Q1-Q6) sur la base des phases de tension de l'alimentation en courant alternatif (3) pour émettre la puissance de régénération d'un moteur (5) à l'alimentation en courant alternatif (3). L'unité de commande (26) est pourvue d'une unité de détection de panne de courant (33) pour déterminer, sur la base de la valeur absolue du courant de ligne omnibus détectée par l'unité de détection de courant de ligne omnibus (25), si une panne de courant s'est produite ou non dans l'alimentation en courant alternatif (3) soit pendant l'alimentation du moteur (5), soit pendant la régénération du moteur (5).
PCT/JP2019/042208 2019-10-28 2019-10-28 Convertisseur et système de commande de moteur WO2021084584A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201980101594.6A CN114600360B (zh) 2019-10-28 2019-10-28 转换器及电动机控制系统
PCT/JP2019/042208 WO2021084584A1 (fr) 2019-10-28 2019-10-28 Convertisseur et système de commande de moteur
JP2020505935A JP6689478B1 (ja) 2019-10-28 2019-10-28 コンバータおよびモータ制御システム
DE112019007758.9T DE112019007758B4 (de) 2019-10-28 2019-10-28 Umrichter und Motorsteuerungssystem
TW109136807A TWI769563B (zh) 2019-10-28 2020-10-23 變換器及馬達控制系統

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/042208 WO2021084584A1 (fr) 2019-10-28 2019-10-28 Convertisseur et système de commande de moteur

Publications (1)

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WO2021084584A1 true WO2021084584A1 (fr) 2021-05-06

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PCT/JP2019/042208 WO2021084584A1 (fr) 2019-10-28 2019-10-28 Convertisseur et système de commande de moteur

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JP (1) JP6689478B1 (fr)
CN (1) CN114600360B (fr)
DE (1) DE112019007758B4 (fr)
TW (1) TWI769563B (fr)
WO (1) WO2021084584A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010142066A (ja) * 2008-12-15 2010-06-24 Denso Wave Inc ロボット
JP2011092005A (ja) * 2004-10-04 2011-05-06 Daikin Industries Ltd Ｐｗｍ整流回路の保護方法およびその装置
JP2018074794A (ja) * 2016-10-31 2018-05-10 ファナック株式会社 共通の順変換器を有するモータ駆動装置

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Publication number Priority date Publication date Assignee Title
JP2713074B2 (ja) 1992-12-28 1998-02-16 三菱電機株式会社 コンバータ制御装置
JP4910467B2 (ja) * 2006-04-21 2012-04-04 株式会社明電舎 モータの可変速制御装置
JP5063379B2 (ja) * 2008-01-11 2012-10-31 日立アプライアンス株式会社 電力変換装置、及び電力変換装置用モジュール、並びに、空気調和機及び冷凍装置
CN101425756B (zh) 2008-07-30 2010-12-01 东元总合科技（杭州）有限公司 一种直流侧电压可控型四象限变频器及其运行方法
JP5274236B2 (ja) * 2008-12-25 2013-08-28 株式会社日立製作所 ３相インバータの電源回路保護装置
JP4565036B2 (ja) * 2009-01-05 2010-10-20 ファナック株式会社 モータの絶縁劣化検出装置
JP5670505B2 (ja) * 2013-04-15 2015-02-18 ファナック株式会社 停電判定手段を有するモータ制御装置
KR102543891B1 (ko) * 2015-08-10 2023-06-14 엘지전자 주식회사 전력변환장치 및 이를 구비하는 공기조화기
WO2017033320A1 (fr) * 2015-08-26 2017-03-02 三菱電機株式会社 Convertisseur à récupération pour alimentation, et dispositif de commande de moteur
KR101720496B1 (ko) * 2015-08-27 2017-04-10 엘지전자 주식회사 전력변환장치 및 이를 구비하는 공기조화기

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011092005A (ja) * 2004-10-04 2011-05-06 Daikin Industries Ltd Ｐｗｍ整流回路の保護方法およびその装置
JP2010142066A (ja) * 2008-12-15 2010-06-24 Denso Wave Inc ロボット
JP2018074794A (ja) * 2016-10-31 2018-05-10 ファナック株式会社 共通の順変換器を有するモータ駆動装置

Also Published As

Publication number Publication date
CN114600360B (zh) 2023-07-25
CN114600360A (zh) 2022-06-07
JP6689478B1 (ja) 2020-04-28
DE112019007758B4 (de) 2024-02-01
JPWO2021084584A1 (ja) 2021-11-25
DE112019007758T5 (de) 2022-06-15
TWI769563B (zh) 2022-07-01
TW202118209A (zh) 2021-05-01

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