【摘要】 将传统的无功功率理论与瞬时无功功率理论作了对比。对有环流交交变频同步电机调速系统的无功功率进行了理论研究。并且提出了有效的检测方法。用于指导对交交变频系统的改造。更多还原

【Abstract】 The theories of the instantaneous reactive power and the traditional reactive power are compared. By studying on the reactive power of the cycloconverterfed synchronous motor with fieldoriented control and circumfluence, the mean for measuring the reactive power is proposed. 更多还原