Boost型PWM整流器并联环流机理分析及抑制策略

发布时间：2018-08-29 19:29

【摘要】：对Boost型脉宽调制(PWM)整流器的并联环流产生机理进行了详细分析。通过在αβ0坐标系下建模,将环流划分为共模环流、差模环流、高频环流3类,揭示了各类环流的影响因素。在此基础上,基于比例谐振调节器,针对差模环流和共模环流分别设计了独立控制器。由于αβ0坐标系不需要电网相位信息,因此该控制策略能够省略锁相环节,简化计算量和控制结构。在600kVA对拖平台上进行了实验,验证了机理分析的正确性与控制策略的有效性。
[Abstract]:The generation mechanism of parallel circulation of Boost type (PWM) rectifier with pulse width modulation is analyzed in detail. By modeling in 伪 尾 0 coordinate system, the circulation is divided into three categories: common mode circulation, differential mode circulation and high frequency circulation. On this basis, independent controllers are designed for differential mode circulation and common mode circulation based on proportional resonant regulator. Because the phase information of power network is not required in 伪 尾 0 coordinate system, the control strategy can omit the PLL node and simplify the calculation and control structure. Experiments on the towing platform by 600kVA are carried out to verify the correctness of the mechanism analysis and the effectiveness of the control strategy.
【作者单位】： 中国科学院电工研究所;中国科学院大学;中国科学院风能利用重点实验室;北京科诺伟业科技有限公司;
【基金】：国家科技支撑计划重大项目(2012BAA01B00)~~
【分类号】：TM461
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本文编号：2212186