基于内模原理的并网逆变器双模PI控制

doi:10.19595/j.cnki.1000-6753.tces.171707

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Abstract Grid-tied inverters are important power interfaces between distributed power generation systems and grid. Power quality of the grid-tied inverter is directly related to the reliable operation of the grid. In order to depress harmonic of the inverter injected into the grid, this paper combined the advantages of conventional PI controller and internal model controller, used the odd and even harmonic internal modules to replace the integrator in conventional PI, and constructed dual-mode PI controller based on internal model principle. The dual-mode controller not only has the advantages of conventional PI controller, such as fast response, good robustness and simple parameter design, but also can realize zero steady error control, and effectively suppress the harmonic disturbance of the power grid. Meanwhile, the proposed controller can separate control odd and even harmonics. As a result, harmonics suppression is more effective. Simulation and experimental results demonstrated the proposed method.

Key words： Grid-tied inverter internal model principle zero steady error control harmonics suppression

Received: 25 December 2017 Published: 17 December 2018

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TM464

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	Wang Jibiao
	Chen Qihong
	Zhang Liyan
	Zhou Keliang

Cite this article:

Wang Jibiao,Chen Qihong,Zhang Liyan等. Internal Model Principle Based Dual-Mode PI Control for Grid-Tied Inverters[J]. Transactions of China Electrotechnical Society, 2018, 33(23): 5484-5495.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.171707 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I23/5484

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