CONTROLLER FOR LINEAR SYNCHRONOUS MOTOR
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申请人：TOKYO SHIBAURA DENKI KK
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摘要：PURPOSE:To improve the current excess when a thrust decreases or at crossover time by altering current or voltage reference so that the output current coincides in the magnitude and phase with a current reference. CONSTITUTION:3phase/2-phase converters 25, 26 respectively converter unit sinusoidal waves SU-SW and output currents iOU-iOW in response to position detection signals 16U-16W into 2-phase signals. A vector calculator 27 calculates an output current amplitudeIand a phase difference theta with the outputs of the converters 25, 26. A current amplitude difference control amplifier 33 outputs a signal DELTAI in response to the deviation DELTAIbetween the output current amplitudeIand the current peak value commandIP, and a phase difference control amplifier 34 outputs a signal DELTAtheta in response to the phase difference DELTAtheta. A unit sinusoidal wave generator 9 outputs a unit sinusoidal waves S'U'-S'W' different in phase by DELTAtheta from the reference, multiplies the sum signalI P ofIP and DELTAI by the unit sinusoidal waves S'U-S'W, and applies the current references iRU-iRW to current control circuits 8U-8W.专利内容由知Fra bibliotek产权出版社提供
专利名称：CONTROLLER FOR LINEAR SYNCHRONOUS MOT OR
发明人：TAMURA YOSHIAKI,MAEKAWA KATSU 申请号：J P 34 84 182 申请日：19820305 公开号：J P S58154 390A 公开日：19830913
更多信息请下载全文后查看
摘要：PURPOSE:To improve the current excess when a thrust decreases or at crossover time by altering current or voltage reference so that the output current coincides in the magnitude and phase with a current reference. CONSTITUTION:3phase/2-phase converters 25, 26 respectively converter unit sinusoidal waves SU-SW and output currents iOU-iOW in response to position detection signals 16U-16W into 2-phase signals. A vector calculator 27 calculates an output current amplitudeIand a phase difference theta with the outputs of the converters 25, 26. A current amplitude difference control amplifier 33 outputs a signal DELTAI in response to the deviation DELTAIbetween the output current amplitudeIand the current peak value commandIP, and a phase difference control amplifier 34 outputs a signal DELTAtheta in response to the phase difference DELTAtheta. A unit sinusoidal wave generator 9 outputs a unit sinusoidal waves S'U'-S'W' different in phase by DELTAtheta from the reference, multiplies the sum signalI P ofIP and DELTAI by the unit sinusoidal waves S'U-S'W, and applies the current references iRU-iRW to current control circuits 8U-8W.专利内容由知Fra bibliotek产权出版社提供
专利名称：CONTROLLER FOR LINEAR SYNCHRONOUS MOT OR
发明人：TAMURA YOSHIAKI,MAEKAWA KATSU 申请号：J P 34 84 182 申请日：19820305 公开号：J P S58154 390A 公开日：19830913