Multiple Reference Frame-Based Control of Three-Phase PWM Boost Rectifiers under Unbalanced and Distorted Input Conditions
Multiple Reference Frame-Based Control of Three-Phase PWM Boost Rectifiers under Unbalanced and Distorted Input Conditions
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DOI：
10.1109/tpel.2008.925205
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发表时间：
2008-07
影响因子：
6.7
通讯作者：
Peng Xiao;Keith A. Corzine;G. K. Venayagamoorthy
中科院分区：
文献类型：
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作者：
Peng Xiao;Keith A. Corzine;G. K. Venayagamoorthy
在过去的几十年里，人们提出了许多用于三相脉宽调制有源整流器的控制算法和电路。在大多数研究中，通常假设输入电压是平衡的或仅包含基频分量。本文提出了一种基于改进的多参考系算法的选择性谐波补偿方法。该技术消除了输入电流中基频正序分量与谐波和/或负序分量之间的相互作用，从而可以实现对谐波和不平衡电流的快速准确调节。解耦锁相环算法用于与公用电压的适当同步，这也受益于多参考系技术。所提出的控制方法导致相当大的减少，在整流器输入电流中的低次谐波含量，并通过反馈回路实现几乎为零的稳态误差。广泛的实验测试的基础上的定点数字信号处理器控制的2千瓦的原型被用来验证所提出的想法的有效性。
Many control algorithms and circuits for three-phase pulse width modulation active rectifiers have been proposed in the past decades. In most of the research, it is often assumed that the input voltages are balanced or contain only fundamental frequency components. In this paper, a selective harmonic compensation method is proposed based on an improved multiple reference frame algorithm, which decouples signals of different frequencies before reference frame transformation. This technique eliminates interactions between the fundamental-frequency positive-sequence components and harmonic and/or negative-sequence components in the input currents, so that fast and accurate regulation of harmonic and unbalanced currents can be achieved. A decoupled phase-locked loop algorithm is used for proper synchronization with the utility voltage, which also benefits from the multiple reference frame technique. The proposed control method leads to considerable reduction in low-order harmonic contents in the rectifier input current and achieves almost zero steady-state error through feedback loops. Extensive experimental tests based on a fixed-point digital signal processor controlled 2 kW prototype are used to verify the effectiveness of the proposed ideas.