电工技术学报2017，Vol.32Issue(24)：139-145,7.DOI:10.19595/j.cnki.1000-6753.tces.L70235
直流侧独立供电的混合型逆变器控制策略
Control Strategy of Hybrid Inverters with Independent Supplies in DC Side
摘要
Abstract
Independent power supply in dc side is effective to restrain the zero sequence current of hybrid inverter. Taken the ac drive system powered by hybrid inverters as the object, based on the energy exchange relationship between inverters and motor load, this paper has presented a capacity voltage control strategy. In addition, a master-slave vector control system in rotating coordinates has been established in combination with master-slave control structure and asynchronous motor vector control strategy. Simulation and experimental results show that: through increasing the active current reference associated with capacitance voltage fluctuations in the primary inverter current control, capacitor voltage can be effectively stabilized. Meanwhile, on the premise of capacitance voltage stability, the slave inverter can dynamically compensate the primary harmonic current produced by main inverter, making the motor current distortion rate less than 5%.关键词
混合型逆变器/零序电流/电容稳压控制/谐波补偿Key words
Hybrid inverters/zero sequence current/capacity voltage control/harmonic com- pensation分类
信息技术与安全科学引用本文复制引用
魏永清,张晓锋,于飞,朱鹏..直流侧独立供电的混合型逆变器控制策略[J].电工技术学报,2017,32(24):139-145,7.基金项目
国家自然科学基金资助项目(51307180、51507183). （51307180、51507183）
