双三电平中点钳位开绕组电机反电动势谐波电压下弱磁控制策略

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Abstract

The motor converter control strategy of dual 3L-NPC open-end winding motor is proposed with back-electromotive force harmonic voltage. Firstly, the mathematic model of open-end wind PMSG is established. The value and phase of back-electromotive force harmonic is observed by PR regulator, and the zero sequence current is suppressed by adding the same value and phase zero voltage to the modulation waves. The field-weaken control with the back-electromotive force harmonic voltage is analyzed, and comparisons of the field-weaken range under different modulation strategies are presented. With the certain EMF value and phase, the modulation strategy for boarding the field-weaken range is acquired, so that the motor can work at a higher speed.

Key words： Open-end winding motor back-electromotive force harmonic zero sequence current field-weaken control

Received: 08 September 2015 Published: 26 May 2017

PACS:

TM351

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	Yin Jingyuan
	Zhou Bing

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Yin Jingyuan,Zhou Bing. Open-End Winding Motor Field-Weaken Control Strategy of Dual 3L-Neutral Point Clamped Based on Back-Electromotive Force Harmonic Voltage[J]. Transactions of China Electrotechnical Society, 2017, 32(10): 174-181.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I10/174

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