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Power Synchronization PID Control Method for Grid-Connected Voltage-Source Converters

机译：并网电压源变换器的功率同步PID控制方法

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摘要

Power synchronization control of grid-connected voltage source converters (VSC) in high-voltage direct-current (HVDC) transmission is applied as a credible method. However, the non-minimum-phase phenomena in the dynamic models of this system developed through the space-vector approach imposes a significant limitation on the stability margin of the VSC-HVDC converters. This restriction is more pronounced in valtage fault conditions and frequency oscillations. In this paper, a new PID design based on power-synchronization law along with a new approach to power-frequency swing equation has been designed. This new control method has the features of a virtual synchronous machine and is equipped with a highpass filter that robustifies the control operation during severe voltage and frequency instabilities in weak-grid conditions. A thorough analytical explanation of the proposed method along with performance evaluations in Hardware-in-the-loop environment demonstrate the efficacy of the operation and its simple implementation.
机译：作为一种可靠的方法，可以应用高压直流（HVDC）传输中并网电压源转换器（VSC）的电源同步控制。但是，通过空间矢量方法开发的该系统动态模型中的非最小相位现象对VSC-HVDC转换器的稳定性裕度施加了重大限制。在电压故障条件和频率振荡中，这种限制更为明显。本文提出了一种基于功率同步律的新型PID设计 a 长期以来，已经设计了一种新的方法来解决工频摆幅方程。这种新的控制方法具有虚拟同步机的功能，并配备了高通滤波器，可在弱电网条件下在严重的电压和频率不稳定情况下稳定控制操作。对该建议进行详尽的分析说明 我 托德 a 长期以来，在“硬件在环”环境中的性能评估证明了该操作的有效性及其简单的实现。

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