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Synchronization method and frequency tracking applied on voltage converters

机译:电压转换器的同步方法和频率跟踪

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摘要

This paper proposes a new closed-loop synchronization method for single-phase voltage converters. It presents a good performance under highly distorted grid voltages. Moreover, it has a good performance in terms of distortions in the synchronization signals and it has a good transient performance due amplitude, frequency and angle disturbances. In addition, a frequency adaptation algorithm is proposed for applications where large frequency variations are expected, such as in weak grids. This method can be extended for three-phase systems, applied in three-phase PWM converters. Experimental results using a DSP are given to demonstrate the good performance of the proposed synchronization method.
机译:本文提出了一种新的单相电压转换器闭环同步方法。在高度失真的电网电压下,它具有良好的性能。此外,就同步信号的失真而言,它具有良好的性能,并且由于幅度,频率和角度干扰,它具有良好的瞬态性能。另外,提出了一种频率自适应算法,用于需要大的频率变化的应用,例如在弱电网中。该方法可以扩展到三相系统,应用于三相PWM转换器。给出了使用DSP的实验结果,以证明所提出的同步方法的良好性能。

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