电网技术Issue(7)：1909-1914,6.
带中点电位平衡控制的Vienna整流器滞环电流控制方法
A Hysteresis Current Control Method With Neutral Point Potential Balancing Control for Vienna Rectifier
摘要
Abstract
In allusion to inherent neutral point potential voltage fluctuation in three-phase three-level Vienna rectifier, it is pointed out to lead the neutral point voltage deviation at DC side into the hysteresis current control to implement the balance control of neutral point voltage at DC side via adjusting the DC offset of reference current. According to its equivalent circuit, the working principle of hysteresis current control for Vienna rectifier is analyzed and an outer-loop voltage controller is designed, and the foundation to choose the hysteresis width and the compensation coefficient of neutral point is given. Finally, a prototype of Vienna rectifier is constructed to validate the proposed hysteresis current control method, and experimental results show that the proposed control method not only possesses good static and dynamic performances as well as satisfactory neutral point voltage balancing characteristics, but also can make the Vienna rectifier having satisfactory grid-side performance.关键词
Vienna 整流器/滞环电流控制/中点电位平衡控制Key words
Vienna rectifier/hysteresis current control/neutral point potential balancing control分类
信息技术与安全科学引用本文复制引用
宋卫章,黄骏,钟彦儒,汪丽娟..带中点电位平衡控制的Vienna整流器滞环电流控制方法[J].电网技术,2013,(7):1909-1914,6.基金项目
高等学校博士学科点专项科研基金资助项目(20126118120009)。@@@@Project Supported by Specialized Research Fund for the Doctoral Program of Higher Education(20126118120009) （20126118120009）
