用于压电作动器的无源可控电抗器  

Passive Controllable Reactor for Piezoelectric Actuator

作　　者：狄思思[1] 李苏楠[1] 李华峰[1] 

机构地区：[1]南京航空航天大学机械结构力学及控制国家重点实验室,江苏南京210016

出　　处：《压电与声光》2017年第2期180-183,共4页Piezoelectrics & Acoustooptics

基　　金：国家重点基础研究发展计划("九七三"计划)基金资助项目(2015CB057503)

摘　　要：为实现压电作动器动态无功补偿的目的,该文提出了一种基于变压器的无源可控电抗器的新方案。通过对变压器T型等效电路的端口等效阻抗方程分析可知,当变压器负载阻抗变化时,变压器的等效并联感抗会发生变化,从而实现变压器一次侧阻抗可调。增加变压器原副边电感值,可增加变压器的等效并联电阻,从而减小可控电抗器损耗。理论和实验结果证明此新方案的正确性。To achieve the purpose of dynamic reactive power compensation for piezoelectric actuator,a newproject of passive controllable reactor based on transformer is proposed in this paper.According to the port＇s equivalent impedance equations of the transformer＇s T-type equivalent circuit,the equivalent parallel inductance of the transformer will change when the load impedance alters.Therefore,the equivalent impedance of primary winding of the transformer is adjustable.The transformer＇s equivalent parallel resistance is enlarged by increasing the inductance of the primary winding and secondary winding.Thus the loss of controllable reactor decreases.The validity of the project is proved by the theory and experiment results.

关 键 词：无源电抗器 可控电抗器 变压器损耗 无功补偿 压电作动器 

分 类 号：TM47[电气工程—电器]