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J4  2011, Vol. 45 Issue (9): 1609-1615    DOI: 10.3785/j.issn.1008-973X.2011.09.017
电气工程     
双馈系统中SVPWM有源逆变新技术
刘学文,屈稳太,陈勇
浙江大学 电气工程学院,浙江 杭州310027
Novel SVPWM control strategy of active inverter in double-fed system
LIU Xue-wen, QU Wen-tai, CHENG Yong
College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China
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摘要:

为了改善双馈系统中能量回馈电网的质量,提出一种新的带有同步信号的空间矢量PWM控制算法. 该算法将一个时间周期划分为固定的时间片,离线计算出每个时间片内每个电压矢量的作用时间,而该作用时间仅需查表即可获得,算法计算简单,易于实现.通过有源逆变把双馈电机转子中的能量回馈给电网,实现了逆变侧的电压频率相位与电网电压频率相位的完全同步,以及回馈能量的正弦化,大大提高了回馈电能的质量.通过在双馈系统中的实验,证实了该控制策略的可行性.

Abstract:

A new space vector pulse width modulation (SVPWM) control strategy with synchronous signal was introduced to improve the quality of doubly-fed motor feedback energy to grid. The inverter working period is divided into some fixed time slots, each time slice of each voltage vector is off-calculated in each time slot, so it can be obtained by looking up a table when the inverter is working online. The strategy is simple and can be realized easily. By the strategy, the sinusoid of the double-fed motor feedback energy is achieved, and the synchronization between the inverter output voltage and the grid voltage is reached. Therefore, the quality of the double-fed motor feedback energy to grid is improved significantly. The results of the double-fed motor experimental system show the feasibility of the SVPWM control strategy.

出版日期: 2011-09-01
:  TP 271.4  
基金资助:

浙江省科技计划资助项目(2008C21104);浙江省自然科学基金资助项目(Y1100290).

通讯作者: 屈稳太,副教授.     E-mail: wentaiqu@zju.edu.cn
作者简介: 刘学文(985-)男,硕士生.从事电机控制方面的研究. E-mail: wenwenxs@163.com
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引用本文:

刘学文,屈稳太,陈勇. 双馈系统中SVPWM有源逆变新技术[J]. J4, 2011, 45(9): 1609-1615.

LIU Xue-wen, QU Wen-tai, CHENG Yong. Novel SVPWM control strategy of active inverter in double-fed system. J4, 2011, 45(9): 1609-1615.

链接本文:

https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.09.017        https://www.zjujournals.com/eng/CN/Y2011/V45/I9/1609

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