Motor controlling method and apparatus thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02P-001/04
H02P-001/00
H02P-005/00
H02P-007/00
출원번호
US-0485544
(2003-02-25)
우선권정보
JP-2002-047546(2002-02-25)
국제출원번호
PCT/JP03/002091
(2003-02-25)
§371/§102 date
20040202
(20040202)
국제공개번호
WO03/071672
(2003-08-28)
발명자
/ 주소
Maeda,Toshiyuki
출원인 / 주소
Daikin Industries, Ltd.
대리인 / 주소
Global IP Counselors
인용정보
피인용 횟수 :
11인용 특허 :
7
초록▼
A voltage detection section and current detection section detect a voltage and current supplied to a motor, and the detected voltage and current are supplied to a position detection section. An angular speed output from the position detection section is supplied to a differentiator to output an angu
A voltage detection section and current detection section detect a voltage and current supplied to a motor, and the detected voltage and current are supplied to a position detection section. An angular speed output from the position detection section is supplied to a differentiator to output an angular acceleration. A fundamental wave component extraction section extracts a fundamental wave component of the angular acceleration, and the extracted fundamental wave component is supplied to an amplitude adjustment section. The output of the amplitude adjustment section is subtracted from the average current command by a subtraction section. This subtraction result, current detection value, and the rotor position from the position detection section are supplied to a current control section to carry out the current control operation so as to obtain a current command. The current command is supplied to an inverter to control the voltage and current so as to suppress the speed changing due to the load torque changing. Thus, stability is improved, and a decrease in cost is realized.
대표청구항▼
What is claimed is: 1. A motor controlling method configured to control a voltage or current applied to a motor for driving a periodical load so as to suppress rotation speed changing of the motor, the method comprising: detecting at least a fundamental wave component of an angular acceleration; an
What is claimed is: 1. A motor controlling method configured to control a voltage or current applied to a motor for driving a periodical load so as to suppress rotation speed changing of the motor, the method comprising: detecting at least a fundamental wave component of an angular acceleration; and controlling the voltage or current applied to the motor so as to determine a phase of a fundamental wave component of output torque changing to be nearly reversed phase with respect to the phase of the detected fundamental wave component of the angular acceleration. 2. A motor controlling method as set forth in claim 1, wherein an amplitude of the output torque changing is controlled so that the fundamental wave component of the angular acceleration becomes 0. 3. A motor controlling method as set forth in claim 1, wherein at least one of an output voltage, output current, and torque command consists of a sum of a direct current component and a fundamental wave component. 4. A motor controlling method as set forth in claim 1, wherein the motor is configured to drive a compressor, and the output voltage, current, or torque command is formed in correspondence with a torque changing waveform of the compressor. 5. A motor controlling method as set forth in claim 1, wherein the motor is configured to drive a compressor, and the output voltage, current, or torque command is formed to fit a typical torque changing waveform of the compressor. 6. A motor controlling apparatus configured to control a voltage or current applied to a motor for driving a periodical load so as to suppress rotation speed changing of the motor, the apparatus comprising: control devices configured to detect at least a fundamental wave component of an angular acceleration, and control the voltage or current applied to the motor so as to determine a phase of a fundamental wave component of output torque changing to be nearly reversed phase with respect to the phase of the detected fundamental wave component of the angular acceleration. 7. A motor controlling apparatus as set forth in claim 6, wherein the control devices controls an amplitude of the output torque changing so that the fundamental wave component of the angular acceleration becomes 0. 8. A motor controlling apparatus as set forth in claim 6, wherein the control devices employ a value consisting of a sum of a direct current component and a fundamental wave component, as at least one of an output voltage, output current, and torque command. 9. A motor controlling apparatus as set forth in claim 6, wherein the motor is configured to drive a compressor, and the control devices employ a value formed in correspondence with a torque changing waveform of the compressor as the output voltage, current, or torque command. 10. A motor controlling apparatus as set forth in claim 6, wherein the motor is configured to drive a compressor, and the control devices employ a value formed to suit a typical torque changing waveform of the compressor as the output voltage, current, or torque command.
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이 특허에 인용된 특허 (7)
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Moreira Julio C. ; Nystuen Arne M. ; Ciancimino Rosario ; Vander Molen Donald R. ; Holling Ronald W., Electric motor speed and direction controller and method.
Bidaud Francis,FRX ; Benoit Sylvain,FRX ; Plisson Jacques,FRX ; Morizot Gerard,DEX ; Roth Harald,DEX ; Huber Adolf,DEX, Method and system for supplying optimal power to an inductive-type load.
Bidaud Francis (Duclair FRX) Benoit Sylvain (Artas FRX) Plisson Jacques (Barentin FRX) Morizot Gerard (Villingen FRX) Roth Harald (Munchweiler FRX) Huber Adolf (Bad Durrheim FRX), Optimal power supply for an electric motor.
Soares, Claudio Eduardo; Lilie, Dietmar Erich Bernhard; Andrich, Roberto; Von Dokonal, Luiz, Anticipatory control system for electric motor and anticipatory control method for electric motor applied to cyclic loads.
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