大规模交直流电网电磁暂态数模混合仿真平台构建及验证 (二)直流输电工程数模混合仿真建模及验证  

Construction and Validation of Electromagnetic Transient Digital-Analog Hybrid Simulation Platform for Large-scale AC/DC Power Grids Part Two Modeling and Validation of Digital-Analog Hybrid Simulation of DC Transmission Projects

作　　者：朱艺颖 于钊 李柏青 郭强 谢国平 林少伯 ZHU Yiying;Zhao;LI Baiqing;GUO Qiang;XIE Guoping;LIN Shaobo(State Key Laboratory of Power Grid Safety and Energy Conservation（China Electrie Power Research Institute）,Beijing 100192,China;State Grid Corporation of China,Beijing 100031,China)

机构地区：[1]电网安全与节能国家重点实验室(中国电力科学研究院有限公司),北京市100192 [2]国家电网有限公司,北京市100031

出　　处：《电力系统自动化》2018年第22期32-37,共6页Automation of Electric Power Systems

摘　　要：特高压电网的快速发展对直流输电工程动态特性的仿真提出了更高需求。文中提出了接入多直流控制保护的大规模交直流电网数模混合仿真平台建设技术方案,并从直流输电工程控制保护装置简化原则、数模混合仿真接口技术、直流输电系统一次建模要求等方面提出了适用于接入大规模仿真电网的直流输电工程数模混合仿真建模方法。选择宾金特高压直流工程现场调试的典型故障,将直流输电工程数模混合仿真结果与现场波形进行了详细对比,对比结果表明直流输电数模混合仿真模型的动态响应特性与实际工程的动作特性高度吻合,能够真实再现实际系统情况,可以较为准确地仿真交直流相互影响的现象,为交直流电网安全稳定运行提供强有力的技术支撑,同时可以作为其他数字仿真模型的校准工具。With the fast development of ultra-high voltage power grid, the high-level requirements are put forward for simulating the dynamic characteristic of DC transmission projects. This paper proposes a technical scheme of constructing digital-analog hybrid simulation platform with multiple DC control and proteetion devices for large-scale AC/DC power grids. From the aspects of simplifying the principle of DC control and protection devices, interface techniques for digital-analog hybrid simulation, and requirements of DC system modeling, this paper puts forward a modeling method of digital-analog hybrid simulation for the DC transmission project accessing to the large-scale simulation power grid. The typical fault during the site commissioning test of Yibin-Jinhua UHVDC project is used to make a detailed comparison between the digital-analog hybrid simulation test results and the field test waveforms. The comparison results show that the dynamic response characteristics of the proposed digital-analog hybrid simulation model are highly consistent with the operation characteristics of the actual project, The digital-analog hybrid simulation model is able to reproduce the actual system and accurately simulate the phenomenon of AC/DC interaction, which could provide the strong technical support for the safe and stable operation of AC/ DC power grids. The proposed simulation model can also be used as a calibration tool for other digital simulation models.

关 键 词：直流输电工程 数模混合仿真 控制保护装置 仿真建模 模型验证 

分 类 号：TM721.1[电气工程—电力系统及自动化]