摘要
交直流电力系统的无功电压灵敏度是衡量交流子系统与直流子系统交互作用,指导无功优化控制的重要指标,新一代大容量调相机在我国特高压直流送受端的逐步推广,给现有的无功电压灵敏度计算方法带来了挑战。为此,基于交直流电力系统线性化潮流方程,提出不同类型节点间的无功电压灵敏度计算方法,分析PV节点无功电压灵敏度的物理意义。以EPRI 36节点系统为例,仿真结果验证了所提方法的正确性。
The reactive power and voltage sensitivity of AC /DC power system is an important index to measure the interaction between AC subsystem and DC subsystem,and guide reactive power optimization and control. The gradual application of new generation large capacity SC(Synchronous Condenser)in sending and receiving ends of UHVDC(Ultra High Voltage Direct Current)power system has brought challenges to the existing calculation method of reactive power and voltage sensitivity. Therefore,a sensitivity calculation method for different types of nodes is proposed based on the linearized power flow equation of AC /DC power system,and the physical meaning of the sensitivity concerning PV node is analyzed. The EPRI 36-bus system is taken as an example,and the simulative results verifies the correctness of the proposed method.
作者
黄华
潘学萍
李乐
杨洛
陆进军
颜君凯
HUANG Hua;PAN Xueping;LI Le;YANG Luo;LU Jinjun;YAN Junkai(NARI Group Corporation( State Grid Electric Power Research Institute),Nanjing 211106,China;NARI Technology Co.,Ltd.,Nanjing 211106,China;State Key Laboratory of Smart Grid Protection and Control,Nanjing 211106,China;College of Energy and Electrical Engineering,Hohai University,Nanjing 211100,China)
出处
《电力自动化设备》
EI
CSCD
北大核心
2018年第12期162-167,共6页
Electric Power Automation Equipment
基金
国家电网公司科技项目(基于多数据源的交直流混联大受端电网电压全过程防御及直流落点近区电压控制措施研究与系统开发)~~
关键词
交直流电力系统
调相机
固定电容器
PV节点
PQ节点
无功电压灵敏度
AC/DC power system
synchronous condenser
fixed capacitor
PV node
PQ node
reactive power andvoltage sensitivity
