An Improved Deadbeat Scheme With Fuzzy Controller for the Grid-side Three-Phase PWM Boost Rectifier
An Improved Deadbeat Scheme With Fuzzy Controller for the Grid-side Three-Phase PWM Boost Rectifier
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DOI：
10.1109/tpel.2010.2089645
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发表时间：
2011-04
影响因子：
6.7
通讯作者：
L. Hang;Sensen Liu;Gang Yan;Bo Qu;Zheng-yu Lu
中科院分区：
文献类型：
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作者：
L. Hang;Sensen Liu;Gang Yan;Bo Qu;Zheng-yu Lu
提出了网侧三相升压型PWM整流器的无差拍电流控制器模型。在此基础上，通过分析不同基准电压变化情况下三种常用的预测算法，得到了预测算法与电流超调量、相位延迟之间的内在联系。然后，提出了一种新的选择预测参数的无差拍控制器，以提高性能。采用模糊控制策略，选择合适的预测参数，既限制了最大电流超调量，又调整了相位延迟。仿真结果验证了该控制器的暂态和稳态特性。最后，搭建了一台由TMS320F2812 DSP控制的三相电压型PWM整流器实验样机，并进行了实验测试。实验结果验证了所提出的控制方法的有效性。
The model of deadbeat current controller for the grid-side three-phase boost pulsewidth modulation (PWM) rectifier was presented in this paper. Based on this model, the inherent relationship among predictive algorithms, current overshoot, and phase delay was obtained by analyzing three widely used predictive algorithms in different kinds of reference variations. Then, a novel scheme to select the prediction parameter in deadbeat controller was proposed to improve the performance. By using the fuzzy control strategy, a proper predictive parameter was chosen, which not only limits the maximum current overshoot, but also adjusts the phase delay. Both the transient and the steady characteristic of the proposed controller were validated by the simulation results. Finally, an experimental prototype of a three-phase voltage-source PWM rectifier controlled by a TMS320F2812DSP was built and tested. The experimental results verified the validity of the proposed control approach.