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1. 发明申请

WO2006060537A1 METHOD AND APPARATUS FOR FIELD WEAKENING CONTROL IN AN AC MOTOR DRIVE SYSTEM 审中-公开
标题翻译：交流电机驱动系统中现场弱化控制的方法和装置
公开(公告)号：WO2006060537A1
公开(公告)日：2006-06-08
申请号：PCT/US2005/043414
申请日：2005-11-30
申请人： HONEYWELL INTERNATIONAL INC. , WANG, Zheng , YOU, Zhou, George , DAMING, Ma, Jack
发明人： WANG, Zheng , YOU, Zhou, George , DAMING, Ma, Jack
IPC分类号： H02P21/00
CPC分类号： H02P21/06 , H02P21/22
摘要： A method and apparatus control a power converter (20) of an AC motor drive system (10). The method and apparatus: generate a field current regulating signal to control a field current component flowing from the power converter (20) to the AC motor (30), thereby achieving field current regulation; generate a torque current regulating signal to control a torque current component flowing from the power converter (20) to the AC motor (30), thereby achieving torque current regulation, the torque current regulation having lower priority than the field current regulation; and execute a close-loop field weakening control scheme, which generates a field weakening control command as a function of the difference between a torque current regulation voltage demand and voltage available for torque current regulation. The field current regulating signal is adjusted in accordance with the field weakening control signal to selectively reduce back EMF of the AC motor (30), thereby enabling the step of generating a toque current regulating signal to achieve a toque current component needed to drive the AC motor (30) at a desired speed despite a limitation on DC voltage available to the power converter (20).
摘要翻译：一种控制交流电动机驱动系统（10）的功率转换器（20）的方法和装置。该方法和装置：产生励磁电流调节信号，以控制从电力转换器（20）流向AC电动机（30）的励磁电流分量，从而实现励磁电流调节; 产生转矩电流调节信号，以控制从功率转换器（20）流向AC电动机（30）的转矩电流分量，从而实现转矩电流调节，转矩电流调节的优先级低于励磁电流调节; 并执行闭环弱磁控制方案，其产生弱磁控制指令作为转矩电流调节电压需求和可用于转矩电流调节的电压之间的差的函数。根据减弱弱磁控制信号调整励磁电流调节信号，以选择性地减小AC电动机（30）的反向EMF，从而使得能够产生变矩电流调节信号的步骤以实现驱动AC所需的转矩电流分量电动机（30）以期望的速度，尽管限制了可用于功率转换器（20）的直流电压。

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