具有功率因数改善的晶闸管多相变流器的研究  

Research on Thyristor Multi-Phase Converter with Power Factor Improvement

作　　者：方昌始[1] 方华 

机构地区：[1]华南理工大学,广东广州510641 [2]广州奥的斯电梯有限公司,广东广州510425

出　　处：《大功率变流技术》2009年第6期24-30,共7页HIGH POWER CONVERTER TECHNOLOGY

摘　　要：提出了一种具有功率因数改善功能的晶闸管多相变流器,介绍了其结构原理,对其中的零桥电路功能及运行过程进行了讨论分析,建立了相关数学模型并导出了功率与触发角的关系式。实验结果证明,该多相变流器的输入电能可随直流电压的降低而减少,而功率因数高于常规的多相变流器。It presents a thyristor multi-phase converter with power factor improvement,introduces the configuration and principle,including its zero-bridge function and operating process.Relative mathematical models are built and the relation expression of power versus trigger angle is derived.Experimental results show that the input power of the multi-phase converter is reduced as dc voltage is lowered and its power factor is better than the conventional one.

关 键 词：多相变流 零相桥 功率因数 

分 类 号：TM46[电气工程—电器]