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1. 发明授权

US6043617A Variable speed driving apparatus for induction machines 失效
标题翻译：感应电机变速驱动装置
公开(公告)号：US6043617A
公开(公告)日：2000-03-28
申请号：US37100
申请日：1998-03-09
申请人： Yasushi Matsumoto , Chiharu Osawa , Tetsuya Mizukami
发明人： Yasushi Matsumoto , Chiharu Osawa , Tetsuya Mizukami
IPC分类号： H02P5/50 , H02P5/74 , H02P21/00 , H02P21/08 , H02P27/04 , H02P27/06 , B61C15/08
CPC分类号： H02P5/74 , H02P21/09
摘要： A variable speed driving apparatus drives a plurality of induction machines that facilitates reducing the deviations of the primary magnetic fluxes of the induction machines from the reference and preventing the torque and rotating speed of each induction machine from lowering in the low speed range or when the loads on the respective induction machines are unbalanced. The variable speed driving apparatus includes an inverter 1, induction machines 2, current detectors 3, speed detectors 4, a reference angular frequency operating device 6 for operating the rotating angular frequency of the induction machine bearing the heaviest load based on the output signals of the speed detectors 4, a first phase difference operating device 7.sub.1, for operating the first phase difference between the secondary side component of a reference current and a primary reference magnetic flux, a first reference slip angular frequency operating device 8.sub.1 , to which the first phase difference is inputted, an adder 12.sub.1, for adding the output of the operating device 8.sub.1, and the output of the operating device 6, an integrator 13 for integrating the output of the adder 12.sub.1, a detected current vector rotating device 5 for converting the output of the current detectors 3 to a q-axis component and a d-axis component based on the output of the integrator 13, a q-axis current regulator 10, a d-axis current regulator 11, and a reference voltage vector rotating device 15.sub.1 for converting the reference d-axis current value and reference q-axis current value to reference three-phase voltage values based on the output of the integrator 13.
摘要翻译：变速驱动装置驱动多个感应电机，其有助于减小感应电机的一次磁通量与基准的偏差，并且防止每个感应电机的转矩和转速在低速范围内降低或当负载在各自的感应电机上是不平衡的。变速驱动装置包括逆变器1，感应电动机2，电流检测器3，速度检测器4，基于角速度运算装置6的基准角频率运算装置6，其基于输出信号来运行负载最大负载的感应电动机的旋转角频率速度检测器4，用于操作参考电流的次级侧分量与主参考磁通之间的第一相位差的第一相位差运算器件71，第一相位差运算器件81，输入用于将操作装置81的输出和操作装置6的输出相加的加法器121，用于对加法器121的输出进行积分的积分器13，用于转换加法器121的输出的检测电流矢量旋转装置5 基于积分器13的输出，电流检测器3至q轴分量和d轴分量，q轴电流调节器1 0，d轴电流调节器11和基准电压矢量旋转装置151，用于基于积分器13的输出将参考d轴电流值和参考q轴电流值转换为参考三相电压值。

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