黑启动过程中高压直流输电的变参数FLC控制  

Variable Parameter FLC Scheme of HVDC During Black Start-up

作　　者：夏成军[1] 蓝海文 杜兆斌[1] 陈亦平[2] XIA Chengjun;LAN Haiwen;DU Zhaobin;CHEN Yiping(School of Electric Power, South China University of Technology, Guangzhou 510640, Guangdong Province, China;Power Dispatching Control Center, CSC1 Guangzhou 510663, Guangdong Province, China)

机构地区：[1]华南理工大学电力学院,广东省广州市510640 [2]中国南方电网电力调度控制中心,广东省广州市510663

出　　处：《中国电机工程学报》2018年第9期2641-2648,共8页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51577071);广东省自然科学基金项目(2015A030313202)~~

摘　　要：高压直流输电可加快电网恢复,但黑启动期间送受端系统具有相反的频率调节要求,该文研究并提出黑启动过程中高压直流输电的变参数频率限制器（frequency limit control,FLC）控制策略,以协调两侧交流系统的调频特性。首先建立异步互联系统的数学模型,寻找确定方式下负荷投入后使送受端交流系统频率偏移最小的最优FLC参数;然后提出变参数FLC控制,以适应电网黑启动过程中交流系统容量和等值发电机参数的不断变化;最后搭建PSCAD/EMTDC模型仿真验证了该控制策略的有效性。A well-designed control of HVDC can speed up the recovery of power system. In order to coordinate the opposite frequency characteristics of sending and receiving ends, a variable parameter frequency limit control（FLC） scheme of HVDC used in system black-start was proposed. Firstly, the mathematical model of asynchronously connected system was established, and the optimal FLC parameters leading to minimum frequency changes of both sides under a certain operation were obtained. Then a novel variable parameter FLC control scheme was proposed to adapt to the continually changing of the AC system capacity and equivalent generator parameters during the black-start. Finally, simulation results by PSCAD/EMTDC verified the validity of the proposed control scheme.

关 键 词：高压直流输电 黑启动 优化控制 频率限制器 

分 类 号：TM715[电气工程—电力系统及自动化]