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大电网仿真工具现状及其在华北电网推广应用的思考
訾鹏, 李轶群, 谭贝斯, 陈曦, 贾琳, 王茂海
国家电网有限公司华北分部,北京 100053
摘要:
常规的机电暂态仿真工具在分析交直流故障引起直流送/受端电压失稳、多电压源换流器与交流电网间相互作用产生的宽频振荡等问题方面略显不足,难以准确模拟直流系统的动作行为,影响实际电网运行控制措施的制定。调研用于大型交直流混联电网仿真工具的现状,并提出在华北电网推广应用的工作思路。首先,简要介绍了目前成熟、可行的大型交直流电网仿真技术;然后,重点分析了国内大型交直流电网仿真工具在模型开发、参数维护、用户体验不友好等方面的现状,突出描述了机电-电磁混合、数模混合、全电磁仿真工具在核心技术自主研发方面取得的成就以及在调度生产机构推广应用中的不足之处;最后,结合华北电网的生产需求,明确了各种仿真工具目前在华北电网的定位并提出了后续的工作思路。所做工作对其他调度生产机构也具有一定的借鉴作用,可提高对大型交直流混联电网的掌控能力,间接提高各仿真工具的实用化水平。
关键词:  大型交直流混联电网  机电暂态仿真  电磁暂态仿真  机电-电磁混合仿真  数模混合仿真  推广应用
DOI:10.16081/j.epae.201909055
分类号:TM743
基金项目:
Current situation of large-scale power grid simulation tools and their popularization and application in North China Power Grid
ZI Peng, LI Yiqun, TAN Beisi, CHEN Xi, JIA Lin, WANG Maohai
North China Branch of State Grid Corporation of China, Beijing 100053, China
Abstract:
Conventional electromechanical transient simulation tools are not good enough in analyzing the problems of voltage instability of DC sending-/receiving-end caused by AC/DC faults, wide-frequency oscillation caused by the interaction between multiple voltage source converters and AC power grid, and so on. It is difficult to accurately simulate the action of DC system by conventional electromechanical transient simulation tools, which affects the formulation of control measures for actual power grid operation. Therefore, the current situation of simulation tools for large-scale AC/DC hybrid power grid is investigated, and the popularization and application ideas in North China Power Grid are put forward. Firstly, the mature and feasible simulation technologies for large-scale AC/DC hybrid power grid are briefly introduced. Then, the current situations of domestic large-scale AC/DC power grid simulation tools in terms of model development, parameter maintenance and users’ unfriendly experience are mainly analyzed. The achievements in the independent research and development of core technologies and the shortcomings in the popularization and application of the electromechanical-electromagnetic hybrid simulation, digital and analog mixed simulation and full electromagnetic simulation tools are highlighted. Finally, according to the production demand of North China Power Grid, the current positioning of various simulation tools in North China Power Grid is clarified and the following working ideas are put forward. The work can also be used for reference by other dispatching and production organizations, which can improve the control ability of large-scale AC/DC hybrid power grid and indirectly improve the practical level of simulation tools.
Key words:  large-scale AC/DC hybrid power grid  electromechanical transient simulation  electromagnetic transient simulation  electromechanical-electromagnetic hybrid simulation  digital and analog mixed simulation  popularization and application

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