公开(公告)号：EP1637447A4

公开(公告)日：2017-05-24

申请号：EP03736262

申请日：2003-06-26

申请人： TOSHIBA MITSUBISHI-ELECTRIC IND SYSTEMS CORP

发明人： TOYODA MASARU ,  KOYAMA MASATO ,  KAMIYAMA ISAO

IPC分类号： B63H21/17 ,  B60L15/20 ,  H02J3/40 ,  H02P5/46

CPC分类号： B60L15/20 ,  H02J3/40 ,  H02P5/46 ,  Y02E60/721 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/648 ,  Y02T10/72 ,  Y02T10/7275 ,  Y04S10/126

摘要： An alternating current motor driving system provided with a plurality of alternating current generators, a common distribution bus, a plurality of power conversion devices, a plurality of power conversion control circuits, and a plurality of alternating current motors. According to one embodiment, each of the power conversion control circuits generates a current instruction for the corresponding alternating current motor based on a corrected speed instruction obtained by correcting a speed instruction for the corresponding power conversion device according to a bus frequency detection output. According to another embodiment, each of the power conversion control circuits generates a speed instruction for the corresponding alternating current motor in the range equal to or lower than an upper limit speed adjustment output obtained by adjusting an upper limit of the speed instruction for the corresponding alternating current motor according to a bus frequency detection output. According to still another embodiment, each of the power conversion control circuits has a current instruction unit for generating a current instruction for the corresponding alternating current motor in the range equal to or lower than an upper limit current adjustment output obtained by adjusting an upper limit of the current instruction for the corresponding alternating current motor according to a bus frequency detection output. Each of the power conversion devices controls, in accordance with a load fluctuation of the common distribution bus, an effective power exchanged with the corresponding alternating current motor based on the current instruction from the corresponding power conversion control circuit, thereby controlling the bus frequency to be a predetermined value corresponding to the corrected speed instruction, a predetermined value regulated by the upper limit speed adjustment output, or a predetermined value regulated by the upper limit current adjustment output.

摘要翻译： 一种交流电动机驱动系统，具备多个交流发电机，共用配电母线，多个电力变换装置，多个电力变换控制电路以及多个交流电动机。 根据一个实施例，功率转换控制电路中的每一个基于通过根据总线频率检测输出校正对应的功率转换装置的速度指令而获得的校正速度指令来产生用于对应的交流电动机的电流指令。 根据另一实施例，功率转换控制电路中的每一个产生用于对应的交流电动机的速度指令，该速度指令在等于或低于通过调整用于相应的交替的速度指令的上限而获得的上限速度调整输出 当前电机根据总线频率检测输出。 根据又一个实施例，功率转换控制电路中的每一个具有电流指令单元，用于在等于或低于通过调整电动机的上限电流调节输出而获得的上限电流调节输出的范围内产生用于对应的交流电动机的电流指令 根据总线频率检测输出的相应交流电机的当前指令。 每个功率转换装置根据公共配电总线的负载波动控制基于来自相应的功率转换控制电路的电流指令与相应的交流电机交换的有效功率，由此将总线频率控制为 与修正后的速度指令对应的规定值，由上限速度调整输出调整的规定值，或由上限电流调整输出调整的规定值。