直流侧独立供电的混合型逆变器控制策略

doi:10.19595/j.cnki.1000-6753.tces.L70235

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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%.

Key words： Hybrid inverters zero sequence current capacity voltage control harmonic com- pensation

Published: 16 January 2018

PACS:

TM46

Fund:国家自然科学基金资助项目（51307180、51507183）

Corresponding Authors: 张晓锋男,1963年生,博士生导师,教授,研究方向为电力系统及其自动化。E-mail: zhangxiaofeng201@126.com

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	Wei Yongqing
	Zhang Xiaofeng
	Yu Fei
	Zhu Peng

Cite this article:

Wei Yongqing,Zhang Xiaofeng,Yu Fei等. Control Strategy of Hybrid Inverters with Independent Supplies in DC Side[J]. Transactions of China Electrotechnical Society, 2017, 32(24): 139-145.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L70235 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I24/139

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