摘要
有源电抗器由双绕组耦合电抗器和补偿电流发生器组成,在控制绕组中注入特定的补偿电流可以连续调节工作绕组的等值阻抗。提出了有源电抗器的等值电感和电阻的独立调控方法,以工作绕组电流为相位参考,将补偿电流分解为同相与正交两种分量,分别控制同相分量和正交分量的大小和极性,可以独立连续地调节有源电抗器的等值电感和电阻。当同相分量和正交分量满足一定条件时,有源电抗器还可以呈现负电感和负电阻。仿真和实验结果验证了有源电抗器等值电感和电阻的独立调控方法的有效性,也证明了负电感和负电阻的可实现性。
Active reactor is composed of a reactor with two coupled windings and a compensation current generator, and injecting a special compensation current into the control winding will adjust the equivalent impedance of the working winding. A novel method for independent control of equivalent inductance and resistance of active reactor is presented in this paper. Taking the working winding current as a phase reference, and decomposing the compensation current into an in-phase component and an orthogonal component, this method can independently adjust the equivalent inductance and resistance by controlling the two components respectively. In addition, the active reactor will present negative inductance or resistance when the two components satisfy certain qualifications. Simulation and experiment results verify the feasibility of the independent control method and the realizability of negative inductance and resistance.
出处
《电工技术学报》
EI
CSCD
北大核心
2007年第10期55-59,共5页
Transactions of China Electrotechnical Society
关键词
有源电抗器
磁通补偿
阻抗控制
负电感
负电阻
Active reactor, magnetic flux compensation, impedance control, negative inductance, negative resistance
