南方电网技术2017，Vol.11Issue(1)：23-29,7.DOI:10.13648/j.cnki.issn1674-0629.2017.01.004
柔性直流换流站启动过程对交流电网电压的影响
Impact of Startup Process of VSC-HVDC Station on AC Power Grid Voltage
摘要
Abstract
Based on typical structure of voltage source converter based HVDC (VSC-HVDC) station and its parameters, the impact of startup process of VSC-HVDC station on AC grid is analyzed in this paper.According to the characteristic of voltage and current during station startup, it is concluded that AC grid voltage might drop abruptly because of transformer excitation inrush current or incomplete charge of DC capacitors at the time of closing AC circuit breaker or bypassing charging resistor.A control method to avoid the voltage drop of AC grid is proposed which decreases over current through phase selection switchs and delayed charging resistor bypassing.The method is verified through simulations based on real VSC-HVDC station.关键词
柔性直流输电/换流站/模块化多电平换流器/励磁涌流Key words
voltage source converter based HVDC (VSC-HVDC)/converter station/modular multi-level converter (MMC)/excitation inrush current分类
信息技术与安全科学引用本文复制引用
黄辉,袁志昌,张松光,李洁..柔性直流换流站启动过程对交流电网电压的影响[J].南方电网技术,2017,11(1):23-29,7.基金项目
广东电网公司科技项目(GD201420295).Supported by Science and Technology Project of Guangdong Power Grid Co., Ltd.(GD201420295). （GD201420295）
