JP7294993B2 - 磁極方向検出装置および磁極方向検出方法 - Google Patents
磁極方向検出装置および磁極方向検出方法 Download PDFInfo
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- JP7294993B2 JP7294993B2 JP2019210688A JP2019210688A JP7294993B2 JP 7294993 B2 JP7294993 B2 JP 7294993B2 JP 2019210688 A JP2019210688 A JP 2019210688A JP 2019210688 A JP2019210688 A JP 2019210688A JP 7294993 B2 JP7294993 B2 JP 7294993B2
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- magnetic pole
- pole direction
- electric motor
- frequency voltage
- excitation phase
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- 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
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
-
- 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
- H02P6/30—Arrangements for controlling the direction of rotation
-
- 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
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
- H02P6/183—Circuit arrangements for detecting position without separate position detecting elements using an injected high frequency signal
-
- 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
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
- H02P6/185—Circuit arrangements for detecting position without separate position detecting elements using inductance sensing, e.g. pulse excitation
-
- 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
- H02P6/28—Arrangements for controlling current
-
- 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
- H02P2203/00—Indexing scheme relating to controlling arrangements characterised by the means for detecting the position of the rotor
- H02P2203/11—Determination or estimation of the rotor position or other motor parameters based on the analysis of high frequency signals
-
- 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
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/05—Synchronous machines, e.g. with permanent magnets or DC excitation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Description
本実施形態の磁極方向検出装置1は、高周波電圧印加部2と、励磁位相変化部3と、駆動電流検出部4と、磁極方向推定部5と、測定部6と、制御部7と、磁極位置検出部8と、を備える。磁極方向検出装置1は、突極性を有する同期式電動機10の磁極方向を高精度に検出可能である。
例えば、図2Aに示す埋込磁石型の電動機10のロータ11では、埋め込まれた永久磁石13のN-S極に沿って延びる方向が磁極方向となる。また、図2Bに示すリラクタンス型の電動機20のロータ21では、模式的に長方形で描画された鉄芯12の長辺方向が磁極方向となる。
…(1)
ただし、
L0=(Ld+Lq)/2
L2=(Ld-Lq)/2
θ(t):時刻tにおける印加電圧の位相
θp:磁極位置
Vsinγt:高周波電圧
2 …高周波電圧印加部
3 …励磁位相変化部
4 …駆動電流検出部
5 …磁極方向推定部
6 …測定部
7 …制御部
8 …磁極位置検出部
10,20 …電動機
11,21 …ロータ
12,22 …鉄芯
13 …永久磁石
Claims (5)
- 突極性を有する同期電動機の磁極方向を検出する磁極方向検出装置であって、
前記電動機に対して高周波電圧を印加する高周波電圧印加部と、
前記電動機の励磁位相を任意の位相に変化させる励磁位相変化部と、
前記電動機の駆動電流値を検出する駆動電流検出部と、
前記励磁位相と、前記高周波電圧印加下における前記駆動電流値と、に基づいて磁極方向推定を実行する磁極方向推定部と、
前記電動機のインダクタンス値を測定する測定部と、
前記測定部が測定したインダクタンス値に基づいて、前記高周波電圧印加部が印加する高周波電圧の周波数を変更する制御部と、を備える磁極方向検出装置。 - 前記磁極方向検出装置はさらに、前記電動機に対して、検出された前記磁極方向に平行な双方向に外部磁界を印加可能な磁極位置検出部を備える、請求項1に記載の磁極方向検出装置。
- 前記励磁位相変化部は、前記励磁位相を360°以上変化させる、請求項1または2に記載の磁極方向検出装置。
- 前記磁極方向推定部は、前記駆動電流値の時間微分値が極大となる前記励磁位相を検出し、前記検出した励磁位相から90°変化させた位相を磁極方向として推定する、請求項1から3のいずれかに記載の磁極方向検出装置。
- 突極性を有する同期電動機の磁極方向を検出する磁極方向検出方法であって、
前記電動機に対して高周波電圧を印加する高周波電圧印加工程と、
前記電動機の励磁位相を任意の位相に変化させる励磁位相変化工程と、
前記電動機の駆動電流値を検出する駆動電流検出工程と、
前記励磁位相と、前記高周波電圧印加下における前記駆動電流値と、に基づいて磁極方向推定を実行する磁極方向推定工程と、
前記電動機のインダクタンス値を測定する測定工程と、
前記測定工程において測定したインダクタンス値に基づいて、前記高周波電圧印加工程において印加する高周波電圧の周波数を変更する印加電圧周波数変更工程と、を備える磁極方向検出方法。
Priority Applications (4)
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JP2019210688A JP7294993B2 (ja) | 2019-11-21 | 2019-11-21 | 磁極方向検出装置および磁極方向検出方法 |
US17/088,667 US11342869B2 (en) | 2019-11-21 | 2020-11-04 | Pole direction detection device and pole direction detection method |
DE102020130307.6A DE102020130307A1 (de) | 2019-11-21 | 2020-11-17 | Polrichtungserfassungsvorrichtung und polrichtungserfassungsverfahren |
CN202011302410.3A CN112825462A (zh) | 2019-11-21 | 2020-11-19 | 磁极方向检测装置以及磁极方向检测方法 |
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JP2019210688A JP7294993B2 (ja) | 2019-11-21 | 2019-11-21 | 磁極方向検出装置および磁極方向検出方法 |
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Citations (2)
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JP2005130582A (ja) | 2003-10-22 | 2005-05-19 | Fanuc Ltd | 磁極位置検出装置及び方法 |
JP2014117092A (ja) | 2012-12-11 | 2014-06-26 | Shimadzu Corp | 同期電動機制御装置 |
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JP3654003B2 (ja) * | 1998-09-03 | 2005-06-02 | 三菱電機株式会社 | センサレスモータの回転子位置検出装置 |
JP3979771B2 (ja) * | 2000-08-10 | 2007-09-19 | 東洋電機製造株式会社 | 交流電動機の制御装置 |
JP4751435B2 (ja) * | 2008-10-09 | 2011-08-17 | 株式会社東芝 | モータ磁極位置検出装置,モータ制御装置,モータ駆動システム及び洗濯機 |
JP5644820B2 (ja) * | 2012-08-17 | 2014-12-24 | 株式会社安川電機 | モータ制御装置 |
JP6158115B2 (ja) * | 2013-02-21 | 2017-07-05 | 株式会社東芝 | 磁石磁束量推定装置、異常減磁判定装置、同期電動機駆動装置および電動車両 |
JP5920290B2 (ja) * | 2013-07-30 | 2016-05-18 | 株式会社安川電機 | モータ、およびモータの機械角検出方法 |
JP2016021800A (ja) * | 2014-07-14 | 2016-02-04 | 株式会社リコー | 位置推定装置、モータ駆動制御装置及び位置推定方法 |
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- 2020-11-04 US US17/088,667 patent/US11342869B2/en active Active
- 2020-11-17 DE DE102020130307.6A patent/DE102020130307A1/de active Pending
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JP2005130582A (ja) | 2003-10-22 | 2005-05-19 | Fanuc Ltd | 磁極位置検出装置及び方法 |
JP2014117092A (ja) | 2012-12-11 | 2014-06-26 | Shimadzu Corp | 同期電動機制御装置 |
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DE102020130307A1 (de) | 2021-05-27 |
US11342869B2 (en) | 2022-05-24 |
JP2021083258A (ja) | 2021-05-27 |
CN112825462A (zh) | 2021-05-21 |
US20210159824A1 (en) | 2021-05-27 |
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