JP2019083594A5 - - Google Patents

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JP2019083594A5
JP2019083594A5 JP2017208350A JP2017208350A JP2019083594A5 JP 2019083594 A5 JP2019083594 A5 JP 2019083594A5 JP 2017208350 A JP2017208350 A JP 2017208350A JP 2017208350 A JP2017208350 A JP 2017208350A JP 2019083594 A5 JP2019083594 A5 JP 2019083594A5
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motor
brushless
control
degrees
inverter
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JP2017208350A
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JP2019083594A (en
JP6979568B2 (en
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Priority to JP2017208350A priority Critical patent/JP6979568B2/en
Priority claimed from JP2017208350A external-priority patent/JP6979568B2/en
Priority to CN201880051910.9A priority patent/CN111034011B/en
Priority to PCT/JP2018/038019 priority patent/WO2019082682A1/en
Publication of JP2019083594A publication Critical patent/JP2019083594A/en
Publication of JP2019083594A5 publication Critical patent/JP2019083594A5/ja
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前記従来の課題を解決するために、本発明のモータ駆動装置は、ブラシレスDCモータと、前記ブラシレスDCモータに電力を供給する6個のスイッチング素子で構成されるインバータと、前記ブラシレスDCモータの回転子の回転位置を検出する位置検出手段と、前記インバータの出力電圧を前記インバータのスイッチング素子を高周波数でオン/オフすることで前記ブラシレスDCモータに供給する電圧を調整するPWM制御手段と、PWM制御による前記インバータのスイッチング素子のオン時間の時比率が最大となるように前記ブラシレスDCモータの3相巻線に対し電気角90度以上150度以下の範囲で電力を供給する通電相を決める通電相制御手段と、前記通電相制御手段により設定した通電相状態に応じて、前記ブラシレスDCモータを所定の速度で駆動するための前記ブラシレスDCモータの通電相に通電する電気角を制御量として調整する制御量調整部を有し、前記制御量調整部は、前記ブラシレスDCモータの電力供給状態応じて、ブラシレスDCモータの速度制御における制御量を調整するようにしている。
これにより、ブラシレスDCモータの電力供給状態、即ち通電角状態によらず、常に一定の加速度が得られるようになる。
In order to solve the conventional problems, the motor drive device of the present invention includes a brushless DC motor, an inverter composed of six switching elements for supplying electric power to the brushless DC motor, and rotation of the brushless DC motor. Position detecting means for detecting the rotation position of the child, PWM control means for adjusting the voltage supplied to the brushless DC motor by turning on / off the switching element of the inverter at a high frequency for the output voltage of the inverter, and PWM. Energization that determines the energizing phase that supplies power to the three-phase winding of the brushless DC motor in the range of 90 degrees or more and 150 degrees or less so that the time ratio of the on-time of the switching element of the inverter by control is maximized. The electric angle for energizing the energized phase of the brushless DC motor for driving the brushless DC motor at a predetermined speed is adjusted as a control amount according to the phase control means and the energized phase state set by the energized phase control means. The control amount adjusting unit has a control amount adjusting unit for adjusting the control amount in the speed control of the brushless DC motor according to the power supply state of the brushless DC motor.
As a result, a constant acceleration can always be obtained regardless of the power supply state of the brushless DC motor, that is, the energization angle state.

第1の発明は、ブラシレスDCモータと、前記ブラシレスDCモータに電力を供給する6個のスイッチング素子で構成されるインバータと、前記ブラシレスDCモータの回転子の回転位置を検出する位置検出手段と、前記インバータの出力電圧を前記インバータのスイッチング素子を高周波数でオン/オフすることで前記ブラシレスDCモータに供給する電圧を調整するPWM制御手段と、PWM制御による前記インバータのスイッチング素子のオン時間の時比率が最大となるように前記ブラシレスDCモータの3相巻線に対し電気角90度以上150度以下の範囲で電力を供給する通電相を決める通電相制御手段と、前記通電相制御手段により設定した通電相状態に応じて、前記ブラシレスDCモータを所定の速度で駆動するための前記ブラシレスDCモータの通電相に通電する電気角を制御量として調整する制御量調整部を有し、前記制御量調整部は、前記ブラシレスDCモータの電力供給状態応じてブラシレスDCモータの速度制御における制御量を調整するようにしている。
これにより、高効率化を図ることができるとともに、駆動状態によらず、安定した加速性能を得ることが可能となるため、加減速時における騒音や振動の発生を抑制でき、装置の低騒音・低振動化が可能となり、その結果、信頼性を向上させることができる。
The first invention comprises a brushless DC motor, an inverter composed of six switching elements for supplying electric power to the brushless DC motor, and a position detecting means for detecting the rotational position of the rotor of the brushless DC motor. At the time of the PWM control means for adjusting the output voltage of the inverter by turning on / off the switching element of the inverter at a high frequency to adjust the voltage supplied to the brushless DC motor, and the ON time of the switching element of the inverter by PWM control. Set by the energizing phase control means that determines the energizing phase that supplies power in the range of 90 degrees or more and 150 degrees or less of the electric angle to the three-phase winding of the brushless DC motor so that the ratio is maximized, and the energizing phase controlling means. It has a control amount adjusting unit that adjusts the electric angle for energizing the energizing phase of the brushless DC motor as a control amount for driving the brushless DC motor at a predetermined speed according to the energized phase state. The adjusting unit adjusts the control amount in the speed control of the brushless DC motor according to the power supply state of the brushless DC motor.
As a result, it is possible to improve efficiency and obtain stable acceleration performance regardless of the driving state. Therefore, it is possible to suppress the generation of noise and vibration during acceleration / deceleration, resulting in low noise of the device. It is possible to reduce vibration, and as a result, reliability can be improved.

第2の発明は、特に第1の発明の制御量調整部は、前記通電相制御手段により設定した前記ブラシレスDCモータへの電力供給区間が電気角120度を境として通電する電気角が120度より大きい時の速度偏差に対する変更量が、120度以下での速度偏差に対する変更量よりも大きくなるよう制御量を切換えるようにしたものである。これにより、ブラシレスDCモータの通電角が120度以上での駆動における加速度を120度未満時の加速度と同等にすることで、ブラシレスDCモータの駆動速度が機器の共振周波数帯域通過時の振動・騒音を抑制でき、装置の低振動・低騒音化を可能とする。また、共振周波数帯域通過時の振動の抑制は、振動に起因する機器の故障防止に繋がり、信頼性の高い装置を提供することができる。 A second invention is, in particular, the control amount adjusting unit of the first invention, the electrical angle which the set by conducting phase control means power supply section to the brushless DC motor is energized as a boundary the electrical angle of 120 degrees 120 degrees The control amount is switched so that the amount of change with respect to the speed deviation when the value is larger is larger than the amount of change with respect to the speed deviation at 120 degrees or less . As a result, by making the acceleration when the brushless DC motor is driven at an energization angle of 120 degrees or more equal to the acceleration when the brushless DC motor is driven at less than 120 degrees, the driving speed of the brushless DC motor is vibration / noise when passing through the resonance frequency band of the device. It is possible to reduce the vibration and noise of the device. Further, suppression of vibration when passing through the resonance frequency band leads to prevention of failure of the device due to vibration, and can provide a highly reliable device.

Claims (4)

ブラシレスDCモータと、前記ブラシレスDCモータに電力を供給する6個のスイッチング素子で構成されるインバータと、前記ブラシレスDCモータの回転子の回転位置を検出する位置検出手段と、前記インバータの出力電圧を前記インバータのスイッチング素子を高周波数でオン/オフすることで前記ブラシレスDCモータに供給する電圧を調整するPWM制御手段と、PWM制御による前記インバータのスイッチング素子のオン時間の時比率が最大となるように前記ブラシレスDCモータの3相巻線に対し電気角90度以上150度以下の範囲で電力を供給する通電相を決める通電相制御手段と、前記通電相制御手段により設定した通電相状態に応じて、前記ブラシレスDCモータを所定の速度で駆動するための前記ブラシレスDCモータの通電相に通電する電気角を制御量として調整する制御量調整部を有し、前記制御量調整部は、前記ブラシレスDCモータの電力供給状態応じてブラシレスDCモータの速度制御における制御量を調整するモータ駆動装置。 An inverter composed of a brushless DC motor and six switching elements that supply power to the brushless DC motor, a position detecting means for detecting the rotational position of the rotor of the brushless DC motor, and an output voltage of the inverter. The PWM control means for adjusting the voltage supplied to the brushless DC motor by turning on / off the switching element of the inverter at a high frequency and the time ratio of the on-time of the switching element of the inverter by PWM control are maximized. Depending on the energizing phase control means that determines the energizing phase that supplies power to the three-phase winding of the brushless DC motor in the range of 90 degrees or more and 150 degrees or less, and the energizing phase state set by the energizing phase control means. The control amount adjusting unit has a control amount adjusting unit that adjusts an electric angle for energizing the energizing phase of the brushless DC motor as a control amount for driving the brushless DC motor at a predetermined speed, and the control amount adjusting unit is the brushless. A motor drive device that adjusts the amount of control in speed control of a brushless DC motor according to the power supply status of the DC motor. 前記制御量調整部は、前記通電相制御手段により設定した前記ブラシレスDCモータへの電力供給区間が電気角120度を境として通電する電気角が120度より大きい時の速度偏差に対する変更量が、120度以下での速度偏差に対する変更量よりも大きくなるよう制御量を切換える請求項1に記載のモータ駆動装置。 The control amount adjusting unit changes the amount of change with respect to the speed deviation when the power supply section to the brushless DC motor set by the energization phase control means has an electric angle larger than 120 degrees to energize with an electric angle of 120 degrees as a boundary . The motor drive device according to claim 1, wherein the control amount is switched so as to be larger than the change amount with respect to the speed deviation at 120 degrees or less . 前記ブラシレスDCモータは、冷凍サイクルの圧縮機を駆動することを特徴とする請求項1または請求項2に記載のモータ駆動装置。 The motor driving device according to claim 1 or 2, wherein the brushless DC motor drives a compressor of a refrigeration cycle. 請求項1から請求項3のいずれか一つに記載のモータ駆動装置により駆動される圧縮機を有する冷蔵庫。 A refrigerator having a compressor driven by the motor driving device according to any one of claims 1 to 3.
JP2017208350A 2017-10-27 2017-10-27 Motor drive device and refrigerator using it Active JP6979568B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2017208350A JP6979568B2 (en) 2017-10-27 2017-10-27 Motor drive device and refrigerator using it
CN201880051910.9A CN111034011B (en) 2017-10-27 2018-10-12 Motor driving device and refrigerator using the same
PCT/JP2018/038019 WO2019082682A1 (en) 2017-10-27 2018-10-12 Motor drive device and refrigerator using this

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017208350A JP6979568B2 (en) 2017-10-27 2017-10-27 Motor drive device and refrigerator using it

Publications (3)

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JP2019083594A JP2019083594A (en) 2019-05-30
JP2019083594A5 true JP2019083594A5 (en) 2020-12-03
JP6979568B2 JP6979568B2 (en) 2021-12-15

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JP (1) JP6979568B2 (en)
CN (1) CN111034011B (en)
WO (1) WO2019082682A1 (en)

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* Cited by examiner, † Cited by third party
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WO2023124865A1 (en) * 2021-12-27 2023-07-06 南京泉峰科技有限公司 Electric tool and control method therefor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3243977B2 (en) * 1995-08-18 2002-01-07 国産電機株式会社 Control method of brushless DC motor for electric vehicle
JP4277762B2 (en) * 2004-08-05 2009-06-10 パナソニック株式会社 Refrigerator control device
JP4789660B2 (en) * 2006-03-15 2011-10-12 パナソニック株式会社 Motor driving apparatus and motor driving method
JP4428440B2 (en) * 2007-05-28 2010-03-10 株式会社デンソー Rotor position detection circuit, motor drive device, and rotor position detection method
JP5428746B2 (en) * 2009-01-14 2014-02-26 パナソニック株式会社 Brushless DC motor driving apparatus and electric apparatus using the same
JP2010259184A (en) * 2009-04-23 2010-11-11 Panasonic Corp Inverter controller, electric compressor, and household electrical appliance
JP2011114995A (en) * 2009-11-30 2011-06-09 Nidec Shibaura Corp Drive circuit for motor and motor equipped with the same

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