基于磁通可控原理的新型消弧线圈系统  

New Type of Petersen Coil Based on Magnetic-Flux Controllable

作　　者：贺鹏程[1] 陈乔夫[1] 贾正春[1] 熊娅俐[1] 盛建科[1] 

机构地区：[1]华中科技大学

出　　处：《广东输电与变电技术》2004年第3期6-8,共3页Guangdong Power Transmission Technology

摘　　要：本文提出一种基于磁通可控原理的新型消弧线圈系统,当在消弧线圈的二次侧采用有源的方式注入一个与一次侧电流频率相同,相位相反,幅值连续变化的电流时,消弧线圈的一次侧电抗值可实现连续无级可调。该消弧线圈二次侧采用了多支路并联结构,以满足二次侧低压大电流的要求,且与二次侧只有一条支路的情况等效。当系统采用单极倍频的PWM斩波方式来跟踪一次侧电流来产生二次侧电流时,只要保持给定相同,二次侧各支路的输出完全相同。仿真结果证明了此新型消弧线圈系统的正确性。A new type of Petersen Coil based on magnetic-flux controllabe is proposed in this paper. The primary reactance of the coil can be adjusted continuously-smoothly when a current is injected into the secondary winding of the coil from a certain source, and comparing with the primary current of the coil, which is with antiphase, same frequency and continuous variable magnitude. For solving the problem a huge current will be bear, the coil 's secondary winding has been constructed to some parallel circuit-branches, the effect of which is the same as only one circuit. The coil s secondary current is generated by the means of tracking the primary current using the unipolar multi-frequency PWM in the system. The validity of the coil is proved by the simulation results.

关 键 词：磁通可控 多支路并联 单极倍频 

分 类 号：TM[电气工程]