WO2012035720A1 - モータ駆動装置 - Google Patents
モータ駆動装置 Download PDFInfo
- Publication number
- WO2012035720A1 WO2012035720A1 PCT/JP2011/004976 JP2011004976W WO2012035720A1 WO 2012035720 A1 WO2012035720 A1 WO 2012035720A1 JP 2011004976 W JP2011004976 W JP 2011004976W WO 2012035720 A1 WO2012035720 A1 WO 2012035720A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- rotor
- drive
- detector
- position detector
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
-
- 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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
-
- 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
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/0241—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an overvoltage
-
- 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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/17—Circuit arrangements for detecting position and for generating speed information
Definitions
- the present invention relates to a configuration and method for detecting a locked state of a motor, and a motor driving device for protecting the lock of the motor.
- a conventional motor driving device performs motor lock protection using the following configuration and method for detecting motor lock and a conventional detection method.
- the conventional motor drive apparatus is comprised from the rotor, the drive coil, the rotor position detector, the speed detector which converts position information into speed information, and the drive part which drives a motor.
- the conventional motor driving device is provided with a rotation sensor that outputs a pulse signal every time the motor rotates a certain amount.
- a method for detecting that the motor is in a locked state when a pulse signal from the rotation sensor is not output within a preset lock detection time is disclosed (for example, see Patent Document 1).
- FIG. 4 is a diagram for explaining a configuration for detecting and protecting the locked state of the motor in the conventional motor driving apparatus.
- the conventional motor drive device includes a rotor 1, a drive coil 2, a rotor position detector 3, a speed detector 4, and a drive unit 7.
- the rotor position detector 3 is composed of a rotation sensor such as a Hall IC.
- the speed detector 4 converts the position information of the rotor 1 detected by the rotor position detector 3 into speed information.
- the drive unit 7 receives a drive command 6 for the motor and outputs a drive output to the motor.
- the motor is rotationally driven by the drive output output from the drive unit 7.
- FIG. 5 is a diagram for explaining the operation of detecting and protecting the locked state of the motor in the conventional motor driving apparatus.
- the rotor position is indicated by the movement amount from the starting position on the vertical axis and the time on the horizontal axis.
- the rotor position changes from the start position with an inclination proportional to the speed (movement amount / time) and returns to the start position again.
- the rotor position detector 3 outputs one pulse of the rotor position detector signal (U).
- the speed detector 4 measures the time t1 which is the time interval from the rising edge to the rising edge or the falling edge to the falling edge of the rotor position detector signal (U), so that both the speed information H and the rotor 1 Rotational speed can be measured.
- the rotor position detector signal (U) rises from the rising edge of the pulse of the rotor position detector signal (U) or falls from the falling edge to the falling edge during the lock detection time t2.
- the speed information is set to zero (L), and it is determined that the rotation of the rotor 1 is locked.
- the drive output of the drive part 7 which drives a motor is turned off, and lock protection of a motor is performed.
- the conventional method for protecting the locked state of the motor is effective when the rotor 1 rotates in a certain direction.
- the rotation direction does not rotate in a certain direction due to the type of external load driven by the motor, the hardness of the foreign matter, and the elastic force, but the rotation direction is forward rotation (+), reverse rotation ( ⁇ ) There may be an abnormal situation where the direction repeats.
- a motor is used for a blower fan installed outdoors, for example, when the rotation of the fan instantaneously reverses due to the elastic force of a branch or the like that contacts the external load, the constant rotation is hindered, etc. It is.
- a time t3 that is a time interval from the rising edge of the rotor position detector signal (U) to the rising edge or from the falling edge to the falling edge is measured by the speed detector 4 and determined as speed information H.
- the drive unit 7 does not turn off the drive output supplied to the motor.
- the motor abnormality cannot be detected even though the motor rotor 1 does not normally rotate in a certain direction. Therefore, the drive unit 7 intermittently outputs a drive output for rotating the motor at the maximum current and continuously outputs the drive output to the motor. As a result, there is a problem that the motor generates abnormal heat and the motor is damaged.
- a motor drive device includes a motor having a rotor and a drive coil, a rotor position detector that detects position information of the rotor, a speed detector that converts position information into speed information, and rotational information about position information.
- a direction detector for converting to a motor, and a drive unit for driving the motor.
- FIG. 1 is a diagram illustrating a configuration for detecting and protecting a locked state of a motor of a motor drive device according to an embodiment of the present invention.
- FIG. 2 is a diagram for explaining an operation of detecting and protecting the locked state of the motor in the motor drive device according to the embodiment of the present invention.
- FIG. 3 is a diagram showing the logic of the rotor position detector signals (U), (V), and (W) when the motor is rotating forward in the motor driving device.
- FIG. 4 is a diagram for explaining a configuration for detecting and protecting the locked state of the motor in the conventional motor driving apparatus.
- FIG. 5 is a diagram for explaining the operation of detecting and protecting the locked state of the motor in the conventional motor driving apparatus.
- FIG. 1 is a diagram illustrating a configuration for detecting and protecting the lock state of the motor of the motor drive device according to the embodiment of the present invention.
- the motor drive device of the present embodiment drives at least the rotor 1, the drive coil 2, the rotor position detector 3, the speed detector 4, the direction detector 5, and the motor. It is comprised from the drive part 7.
- the rotor position detector 3 is composed of a rotation sensor such as a Hall IC.
- the speed detector 4 converts the position information of the rotor 1 detected by the rotor position detector 3 into speed information.
- the direction detector 5 converts the position information of the rotor 1 detected by the rotor position detector 3 into rotation direction information.
- the drive unit 7 receives a drive command 6 for the motor, and outputs a drive output such as a drive voltage and a drive current to the motor.
- the motor is rotationally driven by the drive output output from the drive unit 7.
- FIG. 2 is a diagram for explaining the operation of detecting and protecting the locked state of the motor in the motor drive apparatus according to the embodiment of the present invention.
- FIG. 3 is a diagram showing the logic of the rotor position detector signals (U), (V), and (W) when the motor is rotating forward in the motor driving device.
- the drive unit 7 turns on the drive output and energizes the drive coil 2 of the motor.
- the rotor 1 of the motor rotates.
- a magnet is attached to the rotor 1.
- the NS magnetic pole of the magnet of the rotor 1 is detected by the rotor position detector 3 made of, for example, a Hall element or a Hall IC, which is provided at a different position with a phase of 120 ° electrical angle.
- the rotor position detector 3 outputs rotor position detector signals (U), (V), and (W) having different phases of an electrical angle of 120 °.
- the speed detector 4 causes the rotor position detector signal (U) pulse to rise (period from rise to rise) or fall (fall).
- Time t1 that is a time interval of the period from the first to the last falling).
- the speed detector 4 determines that the motor is rotating (speed information is H).
- the drive output of the drive part 7 is turned on, and drive outputs, such as a drive current and a drive voltage, are continuously output to the drive coil 2 of a motor during A section of FIG.
- the rotor position detector 3 divides one rotation of the rotor 1 into, for example, six equal periods from the period a to the period a.
- the logic of the H or L rotor position detector signals (U), (V), (W) is output in the order of period from to f.
- the speed information Is recognized as zero (L).
- the speed information is recognized as zero (L).
- the motor is determined to be in a locked state, the drive output of the drive unit 7 is turned off, and the lock of the motor is protected. As a result, it is possible to prevent a motor from being damaged and to realize a motor driving device excellent in reliability and safety.
- the present invention can be applied to a wide range of fields such as industrial motors and home appliance motors as motor drive devices that protect the locked state of the motor.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
図1は、本発明の実施の形態におけるモータ駆動装置のモータのロック状態を検出し保護する構成を説明する図である。
2 駆動コイル
3 ロータ位置検出器
4 速度検出器
5 方向検出器
6 駆動指令
7 駆動部
Claims (1)
- ロータと駆動コイルとを有するモータと、前記ロータの位置情報を検出するロータ位置検出器と、前記位置情報を速度情報に変換する速度検出器と、前記位置情報を回転方向情報に変換する方向検出器と、前記モータを駆動する駆動部と、を備え、
前記駆動部に駆動指令が入力されて前記モータが駆動されている状態において、前記ロータ位置検出器からロータ位置検出器信号のパルスが前記速度検出器に入力されない場合、および前記ロータがロック状態で正回転・逆回転を繰り返す状態において、前記ロータ位置検出器から前記ロータ位置検出器信号のパルスの立ち上がり間、または立ち下り間の時間を測定中に前記方向検出器で前記モータの回転方向の変化を検知した場合、のいずれかを検出したときに、前記モータがロックしていると判定して前記駆動部の駆動出力をオフするモータ駆動装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012533848A JPWO2012035720A1 (ja) | 2010-09-15 | 2011-09-06 | モータ駆動装置 |
US13/818,598 US20130155552A1 (en) | 2010-09-15 | 2011-09-06 | Motor drive device |
CN201180044652XA CN103109451A (zh) | 2010-09-15 | 2011-09-06 | 电动机驱动装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010-206302 | 2010-09-15 | ||
JP2010206302 | 2010-09-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012035720A1 true WO2012035720A1 (ja) | 2012-03-22 |
Family
ID=45831215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/004976 WO2012035720A1 (ja) | 2010-09-15 | 2011-09-06 | モータ駆動装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130155552A1 (ja) |
JP (1) | JPWO2012035720A1 (ja) |
CN (1) | CN103109451A (ja) |
WO (1) | WO2012035720A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018117476A (ja) * | 2017-01-19 | 2018-07-26 | アイシン精機株式会社 | アクチュエータの制御装置及びステアリング装置 |
WO2020230495A1 (ja) * | 2019-05-16 | 2020-11-19 | 日立オートモティブシステムズ株式会社 | モータ制御装置およびモータ制御方法、並びにこれらを用いた可変バルブタイミング制御装置及び可変バルブタイミング制御方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6490142B2 (ja) * | 2017-05-18 | 2019-03-27 | ファナック株式会社 | モータ駆動装置 |
Citations (2)
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JP2001268972A (ja) * | 2000-03-21 | 2001-09-28 | Daikin Ind Ltd | ファン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 (7)
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US5202616A (en) * | 1989-09-25 | 1993-04-13 | Silicon Systems, Inc. | Bipolar or unipolar drive back-EMF commutation sensing method |
GB9506354D0 (en) * | 1995-03-28 | 1995-05-17 | Switched Reluctance Drives Ltd | Angle controller for a switched reluctance drive utilizing a high frequency clock |
US5793168A (en) * | 1996-08-23 | 1998-08-11 | Micro Linear Corporation | Active deceleration circuit for a brushless DC motor |
US6647325B2 (en) * | 2001-02-19 | 2003-11-11 | Kokusan Denki Co., Ltd. | Control system for electric motor for driving electric vehicle |
JP2007236062A (ja) * | 2006-02-28 | 2007-09-13 | Matsushita Electric Ind Co Ltd | モータ駆動装置及びモータ駆動方法並びにディスク駆動装置 |
JP5175569B2 (ja) * | 2008-02-07 | 2013-04-03 | ルネサスエレクトロニクス株式会社 | 同期電動機の駆動システム |
CN103053109B (zh) * | 2010-09-07 | 2015-08-19 | 株式会社日立产机系统 | 交流电动机旋转方向检测方法和利用其的交流电动机的电力转换装置 |
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2011
- 2011-09-06 JP JP2012533848A patent/JPWO2012035720A1/ja not_active Withdrawn
- 2011-09-06 US US13/818,598 patent/US20130155552A1/en not_active Abandoned
- 2011-09-06 WO PCT/JP2011/004976 patent/WO2012035720A1/ja active Application Filing
- 2011-09-06 CN CN201180044652XA patent/CN103109451A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001268972A (ja) * | 2000-03-21 | 2001-09-28 | Daikin Ind Ltd | ファン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 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018117476A (ja) * | 2017-01-19 | 2018-07-26 | アイシン精機株式会社 | アクチュエータの制御装置及びステアリング装置 |
WO2020230495A1 (ja) * | 2019-05-16 | 2020-11-19 | 日立オートモティブシステムズ株式会社 | モータ制御装置およびモータ制御方法、並びにこれらを用いた可変バルブタイミング制御装置及び可変バルブタイミング制御方法 |
JP2020188618A (ja) * | 2019-05-16 | 2020-11-19 | 日立オートモティブシステムズ株式会社 | モータ制御装置およびモータ制御方法、並びにこれらを用いた可変バルブタイミング制御装置及び可変バルブタイミング制御方法 |
CN113840981A (zh) * | 2019-05-16 | 2021-12-24 | 日立安斯泰莫株式会社 | 电动机控制装置和电动机控制方法、以及使用它们的可变阀定时控制装置和可变阀定时控制方法 |
CN113840981B (zh) * | 2019-05-16 | 2023-09-05 | 日立安斯泰莫株式会社 | 电动机控制装置、方法和可变阀定时控制装置、方法 |
JP7489173B2 (ja) | 2019-05-16 | 2024-05-23 | 日立Astemo株式会社 | モータ制御装置およびモータ制御方法、並びにこれらを用いた可変バルブタイミング制御装置及び可変バルブタイミング制御方法 |
Also Published As
Publication number | Publication date |
---|---|
US20130155552A1 (en) | 2013-06-20 |
JPWO2012035720A1 (ja) | 2014-01-20 |
CN103109451A (zh) | 2013-05-15 |
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