摘要
特高压鲁固直流是世界上首批受端分层接入的输电工程,受端广固换流站高、低压换流器分层接入500 kV/1 000 kV两个不同交流系统,直流控制应对两个交流系统实现独立的无功控制,分别配置500 kV和1 000 kV系统无功控制系统,两个系统的无功控制可在同一硬件装置中实现。500 kV和1 000 kV系统无功控制以各自交流母线的无功交换或电压作为控制目标。分析分层接入系统无功控制配置与控制策略,为今后分层接入特高压直流系统研究设计提供参考。
The UHVDC transmission project form Zhalot to Qingzhou is one of the first UHVDC transmission projects with hierarchical connection at the receiving end in the world.The Guanggu convertor station has hierarchically connect to a high voltage and a low voltage system of 1 000 kV and 500 kV respectively.The reactive power control for the two AC systems should be independently achieved.The reactive power control algorithm is configured for the two system respectively and performed by the same hardware device.The reactive power control of 500 kV and 1 000 kV system takes the reactive power exchange or voltage of each AC bus as the control reference.The configuration and control strategy of reactive power control for hierarchical access system is analyzed,which provides a reference for the future research and design of hierarchical access UHVDC system.
作者
郝文斌
张振华
单浩东
张楷
HAO Wenbin;ZHANG Zhenhua;SHAN Haodong;ZHANG Kai(State Grid Shandong Electric Power Maintenance Company,Jinan 250118,China)
出处
《山东电力技术》
2019年第2期6-9,共4页
Shandong Electric Power
关键词
高压直流输电系统
分层接入
无功控制
HVDC transmission system
hierarchical access
reactive power control
