华东交通大学学报2015，Vol.32Issue(5)：99-104,6.
模块化多电平换流器无锁相环的环流抑制控制策略
Circulation Current Suppressing Control Strategy of Modular Multi-level Converter without Phase Lock Loop
摘要
Abstract
The circulation current is aroused in the three-phase bridge arm due to the structure of modular multilevel converter, which may cause the harmonic wave of three-phase bridge arm current, thus increasing the cost of the system and power loss. Through the analysis of the basic principle of MMC and the mathematical model of MMC control system, this paper designs a kind of MMC control system without phase-locked loop structure, which not only satisfies the MMC main control circuit design, but also may be applied to MMC circulation inhibition of controller design. The control system without phase-locked loop can reduce the system parameter selection effectively, and realize the independent decoupling control of active and reactive power. Simulation analysis verifies the effectiveness of the proposed control strategy and provides a new approach for the stable operation of the MMC system.关键词
模块化多电平换流器/锁相环/环流抑制控制器Key words
modular multilevel converter/phase lock loop/circulation current suppressing controller分类
信息技术与安全科学引用本文复制引用
何峰,宋平岗..模块化多电平换流器无锁相环的环流抑制控制策略[J].华东交通大学学报,2015,32(5):99-104,6.基金项目
国家自然科学基金项目(51367008) （51367008）
