多端混合直流与稳控系统的接口设计与仿真研究  

Interface Design and Simulation of Multi-terminal Hybrid HVDC and Security and Stability Control System

作　　者：常东旭 郭琦 朱益华[1,2,3] 张建新 邱建[4] 白杨[5] 王杨正 李胜男[6] CHANG Dongxu;GUO Qi;ZHU Yihua;ZHANG Jianxin;QIU Jian;BAI Yang;WANG Yangzheng;LI Shengnan(State Key Laboratory of HVDC(Electric Power Research Institute,China Southern Power Grid),Guangzhou 510663,Guangdong Province,China;Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System,Guangzhou 510663,Guangdong Province,China;CSG Key Laboratory for Power System Simulation,Guangzhou 510663,Guangdong Province,China;China Southern Power Grid Company Limited,Guangzhou 510663,Guangdong Province,China;NR Electric Co.,Ltd.,Nanjing 211106,Jiangsu Province,China;Electric Power Research Institute,Yunnan Power Grid Co.,Ltd.,Kunming 650217,Yunnan Province,China)

机构地区：[1]直流输电技术国家重点实验室(南方电网科学研究院有限责任公司),广东省广州市510663 [2]广东省新能源电力系统智能运行与控制企业重点实验室,广东省广州市510663 [3]中国南方电网公司电网仿真重点实验室,广东省广州市510663 [4]中国南方电网有限责任公司,广东省广州市510663 [5]南京南瑞继保电气有限公司,江苏省南京市211106 [6]云南电网有限责任公司电力科学研究院,云南省昆明市650217

出　　处：《电网技术》2021年第9期3772-3779,共8页Power System Technology

基　　金：中国南方电网有限责任公司科技项目(ZBKJXM20190039)。

摘　　要：传统的两端直流控制保护系统(简称"直流控保")与安全稳定控制系统(简称"稳控系统")的接口设计不能适用于多端混合直流工程。结合昆柳龙直流工程的应用实际,对多端混合直流控保和稳控系统的接口方式、数据传输和功能逻辑进行了重新设计,提出了一套直流控保和稳控系统接口时序配合和功率损失量计算的方法,实现方法简单,计算结果准确,能够大幅度简化稳控系统的相关计算逻辑。为了验证该接口设计的有效性,基于RTDS系统构建了实际直流控保和稳控系统组成的闭环实时仿真系统,对二者接口的关键技术细节和典型运行工况进行了详细仿真验证,提出了具体的优化改进措施。仿真研究结果表明该接口方案能够适应多端混合直流的复杂运行工况,应用该接口设计的昆柳龙直流工程已在现场投入运行。The traditional interface design of HVDC control and protection system(CPS) and security and stability control system(SSC) cannot be applied to multi-terminal hybrid HVDC project. Based on the practical application of Kun-Liu-Long HVDC project, this paper redesigns the interface mode, data transmission and function logic of multi-terminal hybrid HVDC CPS and SSC interface, and proposes a set of interface timing coordination and power loss calculation method. The implementation method is simple and the calculation result is accurate, which can greatly simplify the calculation logic of SSC. In order to verify the effectiveness of the interface design, a closed-loop real-time simulation system composed of the actual HVDC CPS and SSC is constructed based on RTDS system. The key technical details and typical operating conditions of the two systems are verified by detailed simulation tests, and specific optimization and improvement measures are proposed. The simulation results show that the interface scheme can adapt to the complex operation conditions of multi-terminal hybrid HVDC, and the Kun-Liu-Long HVDC project designed by this interface has been put into operation.

关 键 词：多端混合直流 安全稳定控制系统 光纤接口 实时仿真 闭环试验 

分 类 号：TM721[电气工程—电力系统及自动化]