特大城市电网基于统一全局优化的AVC-DVC电压优化控制模式的研究和应用  

Research and Application of AVC-DVC System Based on Global Optimal Control for Super Large-scale Urban Grids

作　　者：李大志[1] 周运斌[1] 赵瑞[1] 汤磊[2] 王卫[1] 董晋阳[1] LI Dazhi;ZHOU Yunbin;ZHAO Rui;TANG Lei;WANG Wei;DONG Jinyang(Beijing Electric Power Dispatch and Control Center,Xicheng District,Beijing 100041,China;Dept.of Electrical Engineering,Tsinghua University,Haidian District,Beijing 100084,China)

机构地区：[1]国网北京市电力公司电力调度控制中心,北京市西城区100041 [2]清华大学电机及应用电子技术系,北京市海淀区100084

出　　处：《电网技术》2020年第6期2289-2294,共6页Power System Technology

摘　　要：分析了传统三级协调模式下AVC系统存在的协调水平不足问题,提出了基于全局无功电压优化控制的AVCDVC模式,通过采用全局优化控制策略,解决了省地协调过程中存在的无功设备投入率低,无功设备的频繁动作等问题;在执行层面,利用DVC的控制模式,结合目前广泛应用的智能变电站控制系统,实现自动闭环优化控制。该控制模式已在北京电网中实际应用,控制效果良好,高峰负荷期间无功设备投入率得到提升,无功分布得到优化。With the analysis of the traditional AVC scheme based insufficiencies of the decomposition and coordination,a new AVC+DVC design scheme based on global optimal control is proposed.Through this AVC+DVC mode,the global reactive power optimization is realized,the problems of low usage rate of reactive power compensation device and frequent action of reactive power equipment in provincial-regional coordination have been efficiently alleviated.Thanks to the intelligent substation control systems which are widely used in Beijing power grid,the automatic closed-loop optimization is realized.The new mode has been applied in Beijing power grid with the control effect satisfying,the usage rate of reactive power equipment increased during the peak load period,and the distribution of reactive power optimized as a whole.

关 键 词：全局优化控制 自动电压控制 电力系统 DVC 大规模城市电网 

分 类 号：TM721[电气工程—电力系统及自动化]