南方电网技术2017，Vol.11Issue(9)：1-7,7.DOI:10.13648/j.cnki.issn1674-0629.2017.09.001
柔性直流电网协调控制策略
Coordinated Control Strategy for VSC-HVDC Power Grid
摘要
Abstract
Aiming at complex VSC-HVDC power grid with bipolar structure which contains renewable energy island power sent and isolated power supply, a coordinated control strategy is proposed.The coordinated control system includes wide-area coordinated control system( WCCS) and VSC coordinated control system( VCCS) .After VSC fault or DC line fault, WCCS adjusts power of each converter station and other subsystems according to the operation conditions, and each converter station also changes its own control mode or power according to operation conditions and instructions by VCCS.Based on the typical VSC-HVDC power grid, simulation under typical conditions verifies that the proposed strategy can obviously improve the response characteristics of VSC-HVDC power grid under the fault conditions and improve the security and stability of VSC-HVDC power grid.关键词
柔性直流电网/协调控制/直流电压偏差/直流电压偏差斜率/极间功率转带控制Key words
VSC-HVDC power grid/coordinated control/DC voltage margin/DC voltage margin-droop/bipolar power transfer control分类
信息技术与安全科学引用本文复制引用
刘欣和,张浩,李道洋,王先为,吴金龙,姚为正..柔性直流电网协调控制策略[J].南方电网技术,2017,11(9):1-7,7.基金项目
国家电网公司科技项目(XT71-16-012).Foundation item: Supported by the Science and Technology Project of SGCC (XT71-16-012). （XT71-16-012）
