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KR910017721A - AC motor drive system control method - Google Patents

AC motor drive system control method Download PDF

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Publication number
KR910017721A
KR910017721A KR1019910002001A KR910002001A KR910017721A KR 910017721 A KR910017721 A KR 910017721A KR 1019910002001 A KR1019910002001 A KR 1019910002001A KR 910002001 A KR910002001 A KR 910002001A KR 910017721 A KR910017721 A KR 910017721A
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current
output current
power converter
value
output
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KR1019910002001A
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KR100231266B1 (en
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도시아끼 오꾸야마
다까유끼 마쓰이
다까시 스께가와
마나히로 도비야
쥰이찌 하까히시
신 히로가와
미쓰노리 야마시나
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미쓰다 가쓰시게
가부시끼가이샤 히다찌 세이사꾸쇼
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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
    • 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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Inverter Devices (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

내용 없음No content

Description

교류 전동기 구동시스템 제어방법AC motor drive system control method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1도는 본 발명의 제 1의 실시예, 제 2도는 본 발명의 제 2의 실시예, 제 3도는 본 발명의 제 3의 실시예.1 is a first embodiment of the present invention, FIG. 2 is a second embodiment of the present invention, and FIG. 3 is a third embodiment of the present invention.

Claims (10)

교류전동기를 복수대의 전력변환기를 사용하여 가변속 구동하는 시스템이고, 전류조절기에 의하여 각 전력 변환기의 출력전류를 평형시키는 교류전동기 구도시스템의 제어방법에 있어서, 상기 각 전력변환기의 출력전류를 검출하고, 해달검출신호에 의거하여 각 출력전류의 동일상 마다의 가산치(평균치)를 연산하여 한쪽의 전력변환기의 전류조절기에 피드백하고, 다른쪽 전력변환기의 전류조절기에는 해당변환기의 출력전류 검출치를 피드백하고 각 전력변환기의 출력전류가 그 지령치에 비례하도록 제어하는 것을 특징으로 하는 교류전동기의 제어방법.A system for driving a variable speed drive using a plurality of power converters, the control method of the AC motor composition system for balancing the output current of each power converter by a current regulator, the output current of each power converter is detected, Based on the sea otter detection signal, the addition value (average value) of each output current is calculated and fed back to the current regulator of one power converter, and the output current detection value of the corresponding converter is fed back to the current regulator of the other power converter. And controlling the output current of each power converter to be proportional to the command value thereof. 교류전동기를 복수대의 전력변환기를 사용하여 가변속 구동하는 시스템이고, 전류조절기에 의하여 각 전력변환기의 출력전류를 평형시키는 교류전동기 시스템의 제어방법에 있어서 상기 각 전력변환기의 출력전류를 검출하고 해당 검출신호에 의거하여 각 출력전류의 동일상 마다의 가산치를 연산하고 그것을 회전자계좌표계로 변환하여 한쪽의 전력변환기의 전류조절기에 피드백하고, 다른쪽의 전류변환기의 출력전류검출치를 회전자계좌표계로 변환하여 해당변환기의 전류 조절기에 피드백하고 각 전류변환기의 회전자계좌표계에 있어서의 출력전류가 그 지령치에 비례하도록 제어하는 것을 특징으로 하는 교류전동기 구동시스템의 제어방법.A variable speed drive system using a plurality of power converters, the control method of the AC motor system for balancing the output current of each power converter by a current regulator, the output current of each power converter is detected and the corresponding detection signal On the basis of the calculation, the sum of each output current is calculated for each phase, and it is converted into the rotor coordinate system, fed back to the current regulator of one power converter, and the output current detection value of the other current converter is converted into the rotor coordinate system. A control method of an AC motor drive system, characterized by feeding back to a current regulator of a converter and controlling the output current in the rotor coordinate system of each current converter to be proportional to its command value. 교류전동기를 복수대의 전력변환기를 사용하여 가변속 구동하는 시스템이고, 전 조절기에 의하여 각 전력변환기의 출력전류를 평형시키는 교류전동기 시스템의 제어방법에 있어서 상기 각 전력변환기의 출력전류를 검출하고 해당 검출신호를 회전자계좌표계로 변환하고, 해당신호에 의거하여 각 출력전류의 동일성분의 가산치를 연산하여 한쪽의 전력변환기의 전류조절기에 피드백하고 다른쪽의 전력변환기의 전류조절기에는 상기 회전자계좌표계로 변환된 해당변환기의 출력전류검출신호를 피드백하고, 각 전력변환기의회전자계좌료계에 있어서의 출력전류가 그 지령치에 비례하도록 제어하는 것을 특징으로 하는 교류전동기 구동시스템의 제어방법.A variable speed drive system using a plurality of power converters, and the control method of the AC motor system for balancing the output current of each power converter by a pre-regulator, the output current of each power converter is detected and the corresponding detection signal Is converted to the rotor coordinate system, and based on the corresponding signal, the sum of the same components of each output current is calculated and fed back to the current regulator of one power converter, and the current controller of the other power converter is converted to the rotor coordinate system. The control method of the AC motor drive system characterized by feeding back the output current detection signal of the said converter, and controlling so that the output current in the rotor magnetic field meter of each power converter may be proportional to the command value. 교류전동기를 복수대의 전력변환기를 사용하여 가변속 구동하는 시스템이고, 전류조절기에 의하여 각 전력변환기의 출력전류를 평형시키는 교류전동기 시스템의 제어방법에 있어서 상기 각 전력변환기의 출력전류를 검출하고, 해당검출신호에 의거하여 각 출력전류의 동일상마다에 가산치 몇 차분치를 연산하고 상기 양자의 값을 상기 각 전력변환기의 전류조절기에 피드백하고, 각 전력변환기의 출력전류가 그 지령치에 비례하도록 제어하는 것을 특징으로 하는 교류전동기 구동시스템의 제어방법.A variable speed drive system using a plurality of power converters, the control method of the AC motor system for balancing the output current of each power converter by a current regulator, the output current of each of the power converter is detected, and the detection Based on the signal, several difference values are calculated for the same phase of each output current, the values of both are fed back to the current regulator of each power converter, and the output current of each power converter is controlled to be proportional to the command value. AC motor drive system control method characterized in that. 교류전동기를 복수대의 전력변환기를 사용하여 가변속 구동하는 시스템이고, 전류조절기에 의하여 각 전력변환기의 출력전류를 평형시키는 교류전동기 시스템의 제어방법에 있어서 상기 각 전력변환기의 출력전류를 검출하고, 해당검출신호에 의거하여 각 출력전류를 동일상마다에 가산치(평균치) 및 차분치(불평형치)를 연산하고 각각을 별개의 피드백 제어하는 전류조절기를 설치하고, 한쪽의 전류조절기에는 상기 전류가산치를 피드백하고, 해당가산치가 전류지령치에 비례하도록 상기 한쪽의 전류조절기의 출력신호에 응하여 상기 한쪽의 전력변환기를 제어하고 상기 다른쪽의 전류조절기에는 상기 전류차분치를 피드백하고, 해당조저리기로부터의 출력신호와 상기 한쪽의 조절기로부터의 출력신호의 가산치에 응하여 상기 전류차분치가 영에 가까워지도록 상기 다른쪽의 전력변환기를 제어하는 것을 특징으로 하는 교류전동기 구동시스템의 제어방법.A variable speed drive system using a plurality of power converters, the control method of the AC motor system for balancing the output current of each power converter by a current regulator, the output current of each of the power converter is detected, and the detection Based on the signal, each output current is calculated for each phase, and the current regulator calculates the addition value (average value) and the difference value (unbalance value), and controls each of the separate feedbacks, and feeds the current addition value to one current controller. And control the one power converter in response to the output signal of the one current regulator so that the added value is proportional to the current command value, feed back the current difference value to the other current regulator, and output the signal from the cooker. And the current difference value is zero depending on the addition value of the output signal from one of the regulators. And controlling the other power converter so as to be closer. 교류전동기를 복수대의 전력변환기를 사용하여 가변속구동하는 시스템이고, 전류조절기에 의하여 각 전력변환기의 출력전류를 평형시키는 교류전동기 시스템의 제어방법에 있어서 상기 각 전력변환기의 출력전류를 검출하고, 해당검출신호에 의거하여 각 출력전류를 동일성분마다에 가산치(평균치) 및 차분치(불평형치)를 연산하고 각각을 별개의 피드백 제어하는 전류조절기를 설치하고, 한쪽의 전류조절기에는 상기 전류가산치를 피드백하고, 다른쪽의 전류조절기에는 상기 전류차분치를 피드백하고, 양조절기의 출력신호의 가산치에 응하여 상기 각 전력변환기를 제어하고, 상기 출력전류의 가산치에 관해서는 전류지령치에 비례하도록 상기 출력전류의 차분치에 관해서는 영에 가까워지도록 제어하는 것을 특징으로 하는 교류전동기 구동시스템의 제어방법.A variable speed drive system using an AC motor using a plurality of power converters. The method of controlling an AC motor system in which an output current of each power converter is balanced by a current regulator is provided. The output current of each power converter is detected and the corresponding detection is performed. Based on the signal, each output current is added to each component for the same component (average value) and difference value (unbalanced value), and a current regulator is installed to control each of the separate feedback, and one current regulator feeds the current addition value. And feeding back the current difference value to the other current regulator, controlling the respective power converters in response to the addition value of the output signals of both regulators, and the output current being proportional to the current command value with respect to the addition value of the output current. AC motor drive sheath, characterized in that the difference value is controlled to be close to zero. Method of control. 제 6항에 있어서, 상기 각 전력변환기의 출력전류의 검출신호는 회전자계좌표계로 변환하고 해당변환후의 신호에 의거하여 각 출력전류의 동일성분마다에 가산치와 추분치를 연산하는 것을 특징으로 하는 교류전동기 구동시스템의 제어방법.7. The AC signal according to claim 6, wherein the detection signal of the output current of each power converter is converted into a rotor coordinate system, and the addition value and the fall value are calculated for each identical component of each output current based on the signal after the conversion. Control method of motor drive system. 제 6항에 있어서, 각 출력전류의 동일성분 마다의 가산치 몇 차분치는 회전자계 좌표계로 변환하고, 해당변환후의 신호를 상기 각 전류조절기에 피드백하는 것을 특징으로 하는 교류전동기 구동시스템의 제어방법.7. The control method of an AC motor drive system according to claim 6, wherein a few difference values of addition values for the same components of each output current are converted into a rotor coordinate system and fed back to the respective current regulators after the conversion. 복수대의 전력변환기를 리액터를 사이에 두고 병렬접속하고 상기 리액터의 중점(中点)으로부터 교류전동기에 전력을 공급하는 시스템이고, 전류조절기에 의하여 각 전력변환기간을 순환하는 전류를 억제하는 교류전동기 구동시스템의 제어방법에 있어서 상기 각 전력변환기의 출력전류를 검출하고 그것에 의거하여 상기 교류전동기에 공급되는 출력전류 가산성분과 각 전류변환기를 순환하는 불평형전류성분을 분리하여 검출하고 각 전력변환기의 전류조절기에 상기 양성분에 대한 게인을 틀리게하여 피드백하고, 출력전류의 가산성분에 관해서는 전류지령치에 비례하도록 불평형 성분에 관해서는 영에 가까워지도록 제어하는 것을 특징으로 하는 교류전동기 구동시스템의 제어방법.A system for connecting a plurality of power converters in parallel with a reactor therebetween and supplying power to an AC motor from the center of the reactor. In the control method of the system, the output current of each power converter is detected, and based on it, the output current addition component supplied to the AC motor and the unbalanced current component circulating through each current converter are separately detected and the current regulator of each power converter is detected. The control method of the AC motor drive system characterized by controlling the gain of the said positive component to be incorrectly fed back, and controlling the additive component of the output current to be close to zero with respect to the unbalanced component in proportion to the current command value. 복수대의 전력변환기를 래액터를 사이에 두고 병렬접속하고 상기 리액터의 중점으로부터 교류전동기에 전력을 공급하는 시스템이고, 전류조절기에 의하여 각 전력변환기간을 순환하는 전류를 억제하는 교류전동기 구동시스템의 제어방법에 있어서, 상기 교류전동기에 공급되는 출력전류가산성분과 각 전력 변환기를 순환하는 불평형전류성분을 분리하여 검출하고 한쪽의 전력변환기는 상기 가산정분이 피드백제어되는 전류 조절기의 출력신호에 의하여 제어하고 다른쪽의 전력변환기는 상기 가산성분 및 불평형성분이 각각 피드백제어되는 전류조절기의 출력신호의 가산치에 따라 제어하는 것에 의하여 출력전류의 가산성분에 관해서는 저류지령치에 비례하도록 불평형 성분에 관해서는 영에 가까워지도록 제어하는 것을 특징으로 하는 교류전동기 구동시스템의 제어방법.A system for connecting a plurality of power converters in parallel with a reactor therebetween and supplying power to an AC motor from the center of the reactor, and controlling an AC motor drive system that suppresses current circulating in each power conversion period by a current regulator. In the method, an output current addition component supplied to the AC motor and an unbalanced current component circulating through each power converter are separated and detected, and one power converter is controlled by an output signal of a current regulator in which the addition fraction is feedback-controlled. The other power converter controls the addition component and the unbalance component according to the addition value of the output signal of the current regulator which is feedback-controlled, respectively, so that the addition component of the output current is proportional to the storage command value with respect to the addition component of the output current. AC motor, characterized in that the control to be close to Control method of pre-drive system. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910002001A 1990-03-02 1991-02-06 Control device for controlling a servo motor Expired - Fee Related KR100231266B1 (en)

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JP2049273A JP2515903B2 (en) 1990-03-02 1990-03-02 AC motor drive system and control method thereof
JP90-49273 1990-03-02

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KR910017721A true KR910017721A (en) 1991-11-05
KR100231266B1 KR100231266B1 (en) 1999-11-15

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DE4105868C2 (en) 1993-09-23

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