高压大容量的磁通可控型可调电抗器技术  

Techniques and Experiment for High-voltage and High-power Adjustable Reactor Based on Magnetic Flux Controllable

作　　者：盛建科[1] 陈乔夫[2] 熊娅俐[2] 张宇[2] 李达义[2] 

机构地区：[1]株洲时代集团公司,株洲412001 [2]华中科技大学电气与电子工程学院,武汉430074

出　　处：《高电压技术》2006年第4期91-94,共4页High Voltage Engineering

摘　　要：为实现磁通可控型可调电抗器的高压大容量化,分析介绍了多支路补偿技术和基于级联型变流器的系统拓扑结构,前者在线性变压器二次侧设计多个绕组,各绕组用变流器同时注入电流来控制铁心主磁通,以实现一次侧绕组等效电抗无级可调;后者则是将多个电压源型逆变器在输出首尾相连形成前述的变流器。该文还指明了系统设计要点及控制所采用的三角波调制PWM电流控制法。样机实验证明了该技术实现高压大容量可调电抗系统的可行性及这种磁通可控型可调电抗器响应快、运行稳定、低谐波和电抗值极大范围连续可调的特点。In the paper, the techniques for high-voltage and high-power adjustable reactor based on magnetic flux controllable is analyzed, including the method of controlling the main magnetic flux with current of converter injected into multiple windings of a linear transformer and the method of realizing a hlgh-power converter adopting the structure of cascaded-inverters based converter. The current control scheme with trlangle-lntersectlon-technique based PWM is adopted and analyzed, the key point for system design is point out. These methods verified by a prototype and experimental results show its excellent characteristics of continuous adjustment in an extremely wide range with fast dynamic response and no harmonics.

关 键 词：多支路补偿技术 级联型变流器 可调电抗 磁通 高压 大容量 

分 类 号：TM47[电气工程—电器]