WO2007148726A1 - インバータ制御方法 - Google Patents
インバータ制御方法 Download PDFInfo
- Publication number
- WO2007148726A1 WO2007148726A1 PCT/JP2007/062429 JP2007062429W WO2007148726A1 WO 2007148726 A1 WO2007148726 A1 WO 2007148726A1 JP 2007062429 W JP2007062429 W JP 2007062429W WO 2007148726 A1 WO2007148726 A1 WO 2007148726A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- current
- inverter
- threshold
- rotational speed
- speed
- 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
Links
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
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters
- H02H7/1222—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters responsive to abnormalities in the input circuit, e.g. transients in the DC input
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
-
- 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
Definitions
- the present invention relates to an inverter control method, and more particularly to a technique for detecting an abnormality in a current flowing through an inverter.
- the rotational speed of the rotating device may be reduced due to a physical failure, for example, an excessive load on the rotating device or due to sticking of lubricant in the rotating device itself. There can be a situation where it drops significantly.
- the motor lock is known as the prominent state.
- Patent Documents 1 and 2 are disclosed as techniques for dealing with the motor lock.
- Patent Document 3 is cited as a drooping control for controlling the rotational speed so that the current command does not exceed the current upper limit value.
- Patent Document 1 Japanese Utility Model Publication No. 6-70441
- Patent Document 2 Japanese Patent Laid-Open No. 2005-245075
- Patent Document 3 Japanese Patent Laid-Open No. 2002-138966
- a switching element such as an IGBT is used in an inverter for controlling a motor.
- the switching element has a low allowable heat resistance due to the trend toward miniaturization and cost reduction.
- the present invention has been made in view of the above-described problems, and the operation of the inverter (excessive input current) deviating from the operation region in the low rotation speed region without interfering with the motor operation region.
- the purpose is to increase the protection of the inverter.
- a DC voltage (V) is input.
- the current value is equal to or greater than the first current threshold (I).
- the inverter operation is abnormal because it is larger than the second current threshold (I).
- a second aspect of the inverter control method according to the present invention is the first aspect, wherein the operation region (D) of the multiphase motor is an upper limit value of the current value with respect to the rotational speed ( I)), and the upper limit value indicates that the rotation speed (Rot) is not equal to the second speed threshold (R).
- the first speed threshold (R) increases as the rotational speed increases.
- TH1 is less than the second speed threshold, and the first current threshold (I) is greater than the constant value. Les.
- the upper limit value allowed for the current flowing through the multiphase motor and the inverter decreases as the rotational speed decreases. Therefore, according to the first aspect of the inverter control method according to the present invention, the operation of the inverter (excessive input current) deviating from the operation region in the region where the rotational speed is low without interfering with the operation region is more severe. Judgment power S can be increased, and thus the protection of the inverter can be increased.
- the first speed threshold value is smaller than the second speed threshold value that is gradually increased in the operating region and the current value starts to increase gradually.
- the current threshold of 1 can be set small, so that the protection of the inverter can be increased when the rotation speed is insufficient such as motor lock.
- FIG. 1 is a circuit diagram illustrating a circuit to which an inverter control method according to the present invention can be applied.
- FIG. 2 is a graph illustrating an inverter control method according to the present embodiment.
- FIG. 3 is a flowchart illustrating an inverter control method that is useful in an embodiment of the present invention.
- FIG. 1 is a circuit diagram illustrating a circuit to which an inverter control method according to the present invention can be applied.
- Three-phase AC voltage is applied to the power lines Ll, L2, and L3.
- the three-phase AC voltage is rectified by the diode bridge 1 and charges the capacitor 3 via the choke coil 2.
- Capacitor 3 holds the DC voltage V.
- the inverter 4 inputs a DC voltage V and supplies a three-phase current i to the three-phase motor 6.
- the rotational position ⁇ of the phase motor 6 is detected using a position sensor (not shown), for example, Input to microcomputer 8 as a signal.
- the current i input to the inverter 4 is a pair of currents connecting the inverter 4 and the capacitor 3.
- the resistor 5 is interposed in the negative bus connecting the capacitor 3 and the inverter 4, and the voltage generated at both ends thereof is output as the voltage Vi by the amplifier 7 and input to the microcomputer 8.
- the microcomputer 8 obtains the rotational speed Rot of the motor 6 from the time change of the rotational position ⁇ , and obtains the input current i of the voltage Vi force inverter. And rotation speed Rot, input current i, rotation
- a switching signal C is generated based on the command ⁇ .
- the child is switched based on the switching signal C.
- FIG. 2 is a graph for explaining an inverter control method according to this embodiment.
- the horizontal axis represents the rotational speed Rot of the motor 6, and the vertical axis represents the input current i of the inverter 4.
- the operation region D is represented by using an upper limit value I of the input current i with respect to the rotation speed Rot.
- the input current i is usually higher than the upper limit value I.
- a current threshold I is set for judging an abnormality because the input current i becomes excessive.
- the current threshold I is the current threshold I if the rotational speed Rot is less than the speed threshold R.
- FIG. 3 is a flowchart illustrating an inverter control method according to the embodiment of the present invention, in which an abnormality in the input current i of the inverter is determined.
- the flowchart is a microphone
- step S10 the rotational position ⁇ of the motor 6 and the voltage Vi output from the amplifier 7 are Input to microcomputer 8.
- step S11 the rotational speed Rot of the motor 6 and the input current i of the inverter are calculated from these forces. Steps S10 S11 are normal
- step S21 it is determined whether or not the rotational speed Rot is less than a speed threshold value R.
- step S22 If a positive determination is obtained in step S22, the process proceeds to step S23 if a negative determination is obtained.
- step S22 input current i is less than threshold I.
- step S3 Determine whether the power is on INV TH1. If a positive determination is obtained, the process proceeds to step S3. If a negative determination is obtained, the process returns to the main routine (not shown).
- step S3 means that the input current i to the inverter 4 is excessive.
- step S3 the current abnormality process is executed.
- Switching signal C is used as the current abnormality processing routine.
- step S23 it is determined whether or not the input current i is greater than or equal to a threshold value I. And affirmation
- step S3 If a positive judgment is obtained, the process proceeds to step S3. If a negative judgment is obtained, the process returns to the main routine (not shown).
- Inverter 4 operation (excessive input current i) that deviates from operation region D in the lower region
- Judgment can be made strictly, so that the protection of the inverter 4 can be increased. Strictly judging the excess of the input current i is also desirable in order to avoid overheating of the motor.
- the speed threshold R that determines the current threshold is the speed threshold R that defines the operating region D.
- TH1 is less than TH2, and the current threshold I is preferably larger than the constant value I.
- the speed thresholds R 1 and R 2 are lOOrpm and 200rpm, respectively.
- I 1 and constant value I are 2 amps, 5 amps and 1 amp, respectively.
- the upper limit I of the input current i can be set to a small constant value I.
- the current threshold I can be set smaller at a speed threshold R that is smaller than the speed threshold R at which the upper limit I that defines the region D starts to increase gradually as the rotational speed Rot increases.
- the protection of the inverter 4 can be increased when the rotation speed Rot such as motor lock is insufficient.
- Rotate speed may increase linearly or with a higher order curve.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2007262043A AU2007262043B2 (en) | 2006-06-23 | 2007-06-20 | Inverter control method |
| EP07767267.3A EP2034608A4 (en) | 2006-06-23 | 2007-06-20 | Inverter control method |
| CN2007800232596A CN101473527B (zh) | 2006-06-23 | 2007-06-20 | 逆变器控制方法 |
| US12/303,055 US8084985B2 (en) | 2006-06-23 | 2007-06-20 | Inverter control method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006173832A JP4114697B2 (ja) | 2006-06-23 | 2006-06-23 | インバータ制御方法 |
| JP2006-173832 | 2006-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007148726A1 true WO2007148726A1 (ja) | 2007-12-27 |
Family
ID=38833466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/062429 Ceased WO2007148726A1 (ja) | 2006-06-23 | 2007-06-20 | インバータ制御方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8084985B2 (ja) |
| EP (1) | EP2034608A4 (ja) |
| JP (1) | JP4114697B2 (ja) |
| KR (1) | KR101010506B1 (ja) |
| CN (1) | CN101473527B (ja) |
| AU (1) | AU2007262043B2 (ja) |
| WO (1) | WO2007148726A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017022126A1 (ja) * | 2015-08-06 | 2017-02-09 | 株式会社山田製作所 | モータ制御装置 |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4946979B2 (ja) * | 2008-06-11 | 2012-06-06 | 株式会社デンソー | 電動コンプレッサの駆動装置、電動コンプレッサ、冷凍サイクル装置、および空調装置 |
| JP5481286B2 (ja) * | 2010-06-30 | 2014-04-23 | 日立オートモティブシステムズ株式会社 | 電力変換システムおよび電力変換装置 |
| AU2010363617B2 (en) | 2010-11-02 | 2016-06-02 | Whirlpool Corporation | Portable appliance motor control with speed-based current limitation |
| US8878475B2 (en) * | 2010-11-05 | 2014-11-04 | Stmicroelectronics, Inc. | Current limiting for a motor winding |
| JP5309172B2 (ja) * | 2011-03-08 | 2013-10-09 | 日新製鋼株式会社 | インペラの回転数制御方法 |
| EP3068032B1 (en) * | 2011-03-18 | 2021-02-24 | Koki Holdings Co., Ltd. | Electric power tool |
| JP5825319B2 (ja) * | 2013-10-16 | 2015-12-02 | ダイキン工業株式会社 | 電力変換装置ならびに空気調和装置 |
| JP6597180B2 (ja) * | 2015-10-27 | 2019-10-30 | 株式会社デンソー | モータ制御装置、および、これを用いた電動パワーステアリング装置 |
| JP6544322B2 (ja) * | 2016-09-05 | 2019-07-17 | 株式会社デンソー | 車両用灯具制御装置 |
| DE102017106008B4 (de) * | 2017-03-21 | 2019-07-04 | Schaeffler Technologies AG & Co. KG | Verfahren zur Erkennung eines Kurzschlusses einer Endstufe eines Elektromotors, vorzugsweise eines elektrisch kommutierten Elektromotors |
| CN112564586B (zh) * | 2020-11-30 | 2023-04-25 | 广东美的制冷设备有限公司 | 电机的电流保护控制方法、装置、设备和存储介质 |
| CN113250986B (zh) * | 2021-05-27 | 2022-06-14 | 华能(上海)电力检修有限责任公司 | 基于大数据的燃煤发电机组引风机电动机保护方法及系统 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670441U (ja) | 1993-03-15 | 1994-09-30 | 東芝機器株式会社 | モータロック保護回路 |
| JPH07115791A (ja) * | 1993-10-13 | 1995-05-02 | Nippondenso Co Ltd | 電気自動車用制御装置 |
| JP2000217247A (ja) * | 1999-01-25 | 2000-08-04 | Matsushita Electric Ind Co Ltd | 電流保護回路 |
| JP2002138966A (ja) | 2000-11-06 | 2002-05-17 | Daikin Ind Ltd | 圧縮機駆動方法およびその装置 |
| JP2003111479A (ja) * | 2001-09-28 | 2003-04-11 | Daikin Ind Ltd | モータ制御方法およびその装置 |
| JP2005245075A (ja) | 2004-02-25 | 2005-09-08 | Minebea Co Ltd | ブラシレスdcモータのロック状態検出装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2725500B2 (ja) * | 1991-10-23 | 1998-03-11 | 三菱電機株式会社 | インバータ空調機 |
| JP2988853B2 (ja) * | 1995-07-05 | 1999-12-13 | 財団法人鉄道総合技術研究所 | 直流リニアモータ |
| US6686715B2 (en) * | 2002-06-14 | 2004-02-03 | Champion Microelectronic Corp. | Motor control device |
| JP4622872B2 (ja) * | 2006-01-26 | 2011-02-02 | トヨタ自動車株式会社 | 車両の電源装置、車両および車両の電源装置の制御方法 |
-
2006
- 2006-06-23 JP JP2006173832A patent/JP4114697B2/ja not_active Expired - Fee Related
-
2007
- 2007-06-20 KR KR1020087031071A patent/KR101010506B1/ko not_active Expired - Fee Related
- 2007-06-20 AU AU2007262043A patent/AU2007262043B2/en not_active Ceased
- 2007-06-20 WO PCT/JP2007/062429 patent/WO2007148726A1/ja not_active Ceased
- 2007-06-20 CN CN2007800232596A patent/CN101473527B/zh not_active Expired - Fee Related
- 2007-06-20 EP EP07767267.3A patent/EP2034608A4/en not_active Withdrawn
- 2007-06-20 US US12/303,055 patent/US8084985B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670441U (ja) | 1993-03-15 | 1994-09-30 | 東芝機器株式会社 | モータロック保護回路 |
| JPH07115791A (ja) * | 1993-10-13 | 1995-05-02 | Nippondenso Co Ltd | 電気自動車用制御装置 |
| JP2000217247A (ja) * | 1999-01-25 | 2000-08-04 | Matsushita Electric Ind Co Ltd | 電流保護回路 |
| JP2002138966A (ja) | 2000-11-06 | 2002-05-17 | Daikin Ind Ltd | 圧縮機駆動方法およびその装置 |
| JP2003111479A (ja) * | 2001-09-28 | 2003-04-11 | Daikin Ind Ltd | モータ制御方法およびその装置 |
| JP2005245075A (ja) | 2004-02-25 | 2005-09-08 | Minebea Co Ltd | ブラシレスdcモータのロック状態検出装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2034608A4 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017022126A1 (ja) * | 2015-08-06 | 2017-02-09 | 株式会社山田製作所 | モータ制御装置 |
| CN107960146A (zh) * | 2015-08-06 | 2018-04-24 | 株式会社山田制作所 | 电机控制装置 |
| JPWO2017022126A1 (ja) * | 2015-08-06 | 2018-04-26 | 株式会社山田製作所 | モータ制御装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101010506B1 (ko) | 2011-01-21 |
| US8084985B2 (en) | 2011-12-27 |
| KR20090018658A (ko) | 2009-02-20 |
| JP4114697B2 (ja) | 2008-07-09 |
| EP2034608A1 (en) | 2009-03-11 |
| US20090243525A1 (en) | 2009-10-01 |
| CN101473527A (zh) | 2009-07-01 |
| EP2034608A4 (en) | 2017-07-19 |
| AU2007262043A1 (en) | 2007-12-27 |
| AU2007262043B2 (en) | 2010-05-13 |
| CN101473527B (zh) | 2012-06-06 |
| JP2008005647A (ja) | 2008-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2007148726A1 (ja) | インバータ制御方法 | |
| JP5274236B2 (ja) | 3相インバータの電源回路保護装置 | |
| JP5866034B2 (ja) | 電動機駆動装置 | |
| CN104113258B (zh) | 具备dc链路部异常检测功能的电动机驱动装置 | |
| JP5658785B2 (ja) | モータ制御装置 | |
| JP5923365B2 (ja) | 電動機の出力制御装置 | |
| CN110771030B (zh) | 电动工具的控制装置 | |
| CN115485945A (zh) | 检测并联驱动的开关的故障的故障检测装置及电动机驱动装置 | |
| JP2005147672A (ja) | 断線検出装置 | |
| JP5124899B2 (ja) | モータ制御方法およびその装置 | |
| CN110022116A (zh) | 电动机控制装置和电动机控制装置的控制方法 | |
| JP2012239247A (ja) | モータ制御装置 | |
| WO2006114843A1 (ja) | サーボモータの制御装置 | |
| US10727775B2 (en) | Motor drive device suppressing voltage fluctuation in DC link capacitor | |
| JP5321622B2 (ja) | モータ制御方法およびその装置 | |
| JPH1151454A (ja) | 空気調和機の制御方法 | |
| JP5034914B2 (ja) | エレベータの制御装置 | |
| CN115411963A (zh) | 电动机驱动用逆变器装置及其控制方法 | |
| CN103166560A (zh) | 电动机的控制装置 | |
| JP6759830B2 (ja) | 電力変換装置 | |
| CN111987974B (zh) | 旋转电机控制装置 | |
| WO2011151906A1 (ja) | インバータ装置 | |
| JPH0670498U (ja) | インバータ装置 | |
| CN117811413A (zh) | 马达控制装置 | |
| JP2007184998A (ja) | 電力変換装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 200780023259.6 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07767267 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2007262043 Country of ref document: AU |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2007767267 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 12303055 Country of ref document: US |
|
| ENP | Entry into the national phase |
Ref document number: 2007262043 Country of ref document: AU Date of ref document: 20070620 Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1020087031071 Country of ref document: KR |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |