Performance Comparison of Voltage Control Strategies of VSC-HVDC Grids

2019 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA) Pub Date : 2019-05-01 DOI:10.1109/PEPQA.2019.8851537

Luis Muñoz, M. Rios

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引用次数: 3

Abstract

Voltage source converters (VSC) based HVDC grids are a secure alternative for power transmission in the electric regional integration of many countries around the world, and the integration of renewable sources. The main objective of this paper is to compare the dynamic performance of three modes of control of VSC stations the voltage control methods “Control margin voltage” and “Droop control voltage” to show that the droop voltage control strategy has better results than the voltage margin control strategy. The performance of these controllers is evaluated by means of a perturbation on a VSC station that consists of outage of the negative pole over the bipolar converter station in the DC subsystem DSC3 of the CIGRE DC Grid benchmark test system. The dynamic simulation allows conclude that using a strategic voltage control like margin control voltage is possible have a better level of voltage and active power in the lines DC, the establishment time of the system is 6s. The droop control voltage with acceptable levels of voltage and active power can be faster, stabilizing the system at 1s.

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VSC-HVDC电网电压控制策略性能比较

基于电压源变流器(VSC)的高压直流电网是世界上许多国家电力区域一体化和可再生能源一体化的安全输电替代方案。本文的主要目的是比较电压控制方法“控制裕度电压”和“下降控制电压”三种控制方式对VSC站的动态性能的影响，表明下降电压控制策略比电压裕度控制策略具有更好的效果。通过对CIGRE直流电网基准测试系统直流子系统DSC3中双极换流站负极断电的VSC站的扰动，对这些控制器的性能进行了评估。动态仿真表明，采用余量控制电压等策略电压控制可以使线路直流电压和有功功率达到较好的水平，系统的建立时间为6s。电压和有功功率可接受水平的下垂控制电压可以更快，使系统稳定在1s。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)

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