永磁同步电机高性能电流预测控制

doi:10.19595/j.cnki.1000-6753.tces.211054

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Abstract High performance control system of permanent magnet synchronous motor (PMSM) requires high dynamic performance of current loop. Traditional PI control method has limited bandwidth and is prone to overshoot. The deadbeat control algorithm based on current prediction has a good dynamic performance. Therefore, an improved deadbeat control algorithm based on timing optimization is proposed. The current controller samples the current instruction piecewise, then calculates the compensation value of the voltage instruction, thus eliminating the one beat lagging of the original current instruction. Meanwhile, the deviation of voltage caused by non-ideal factors of power devices and time delay effect is analyzed, and a voltage reconstruction algorithm is introduced to reduce the influence of instruction error on current tracking precision. Simulation and experimental results showed that the improved current prediction algorithm can effectively improve both the dynamic performance and steady-state precision of the current loop.

Key words： Permanent magnet synchronous motor current prediction deadbeat control timing optimization voltage reconstruction

Received: 15 July 2021

PACS:

TM341

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	Articles by authors
	Zhang Huixuan
	Fan Tao
	Bian Yuanjun
	Wen Xuhui
	Sun Hongyan

Cite this article:

Zhang Huixuan,Fan Tao,Bian Yuanjun等. Predictive Current Control Strategy of Permanent Magnet Synchronous Motors with High Performance[J]. Transactions of China Electrotechnical Society, 2022, 37(17): 4335-4345.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.211054 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I17/4335

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