特高压交直流大电网的数模混合实时仿真系统建模  

Modeling of Analogue-digital Hybrid Real-time Simulation System Applied in the UHV AC/DC Great Power Grid

作　　者：刘云[1] 蒋卫平[1] 印永华[1] 张晋华[1] 胡涛[1] 陈凌芳[1] 王晶芳[1] 谢国平[1] 王明新[1] 李新年[1] 

机构地区：[1]中国电力科学研究院,北京市100085

出　　处：《电力系统自动化》2008年第12期52-56,共5页Automation of Electric Power Systems

基　　金：国家电网公司科技项目(SGSC[2005]138)~~

摘　　要：为对金沙江一期和锦屏电力外送的系统接入和受端交流扰动后的交直流响应性能及恢复情况进行专题研究,中国电力科学研究院仿真中心按照网络物理特性相符并适应仿真中心现有仿真设备规模的等值网,建立了迄今国内外规模最大的数模混合实时仿真系统。文中阐述了数模混合实时仿真系统建模的关键技术,包括:交直流系统模拟比的选择,发电机和动态负荷模型的建立和校核,采用不同策略和技术的7回高压和特高压直流系统的建立;无源元件模型的建立和连接;系统数据库的建立;系统的全面校核等。In order to conduct special research on the AC/DC response and recovery performance on the condition that Jinshajiang phase I and Jingping power transmission project be interconnected into the power grid and the sending and receiving end being disturbed, the largest analogue-digital hybrid real-time simulation system in the world has been established in the simulation centre of China Electric Power Research Institute （CEPRI）, based on the equivalence principle that the performances of the simplified network are consistent with those of the original one, and the simplified network can adapt to the present simulation system. Several key modeling technologies are described in this paper： choosing the appropriate simulation ratio of the AC/DC system, establishment and verification of the generators, dynamic load models, seven HVDC and UHVDC systems with different control strategies, model of the reactive components, establishing of system database, the comprehensive verification of the whole network, and so on. All these technologies accumulate valuable experiences in model establishment and research of large scale AC/DC interconnection power grid by means of the analogue-digital hybrid real-time simulation system.

关 键 词：特高压交直流电网 直流多馈入系统 数模混合实时仿真 系统建模 

分 类 号：TM743[电气工程—电力系统及自动化]