电力系统保护与控制Issue(7)：91-96,6.
基于级联H桥换流器的APF-STATCOM的控制与调制
Control and modulation for APF-STATCOM based on cascaded H-bridge converter
林志勇 1江道灼 1周月宾 1郭捷 1胡鹏飞 1梁一桥1
作者信息
- 1. 浙江大学电气工程学院，浙江 杭州 310027
- 折叠
摘要
Abstract
Active power filter (APF) and static synchronous compensator (STATCOM) are indispensable elements in power system. APF can be used to suppress the harmonics, while STATCOM can be used to compensate reactive power. In this paper, the functions of APF and STATCOM are combined in a single unit by controlling a three-phase cascaded H-bridge converter, i.e. APF-STATCOM. This paper introduces topology and working principle of cascaded H-bridge APF-STATCOM and puts forward a control strategy. In order to balance DC capacitor voltages of cascaded H-bridge converter, balancing control strategy for cascaded H bridge converters based on nearest voltage level modulation (NLM) is proposed. 36 cascaded H-bridge APF-STATCOM model is set up in PSCAD/EMTDC. And by the simulation, the feasibility and effectiveness of control strategy and balance control strategy are verified. The proposed capacitor voltage balancing strategy can avoid unnecessary frequent switch of H bridge module IGBT.关键词
级联H桥APF-STATCOM/无功补偿/谐波抑制/最近电平调制/电压均衡控制策略Key words
cascaded H-bridge APF-STATCOM/reactive power compensation/harmonic suppression/nearest voltage level modulation (NLM)/voltage balancing control strategy分类
信息技术与安全科学引用本文复制引用
林志勇,江道灼,周月宾,郭捷,胡鹏飞,梁一桥..基于级联H桥换流器的APF-STATCOM的控制与调制[J].电力系统保护与控制,2014,(7):91-96,6.
