新能源机组的电网强度适应性及暂态响应特性测试方案  

Test Scheme for Power Grid Strength Adaptability and Transient Response Characteristics of Renewable Energy Unit

作　　者：刘浩芳 朱艺颖 刘琳 吴娅妮 张晓丽 LIU Haofang;ZHU Yiying;LIU Lin;WU Yani;ZHANG Xiaoli(State Key Laboratory of Power Grid Safety and Energy Conservation(China Electric Power Research Institute),Beijing 100192,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

出　　处：《电力系统自动化》2022年第21期186-199,共14页Automation of Electric Power Systems

基　　金：国家电网有限公司科技项目“5100-202055433A-0-0-00”。

摘　　要：随着以新能源为主体的新型电力系统快速发展,新能源占比不断增加。新能源机组对电网强度的适应性及暂态响应特性对所接入大电网的稳定特性有显著影响。文中设计了新能源机组对电网强度的适应性测试系统,搭建了详细的电磁暂态测试模型,针对新能源机组控制器的数字封装模型及实际装置,提出了新能源机组的系统强度适应性及其暂态响应特性测试方法,给出了描述新能源机组暂态响应特性的主要参数。以某光伏机组为例,对其进行了系统强度适应性测试及暂态响应特性测试。测试结果能够较为准确地量化表征新能源机组对电网强度的响应特性,可为电网接纳新能源提供重要的技术参考,同时为新能源厂家提供优化机组电网强度适应性的有效手段。With the rapid development of new power system dominated by renewable energy,the proportion of renewable energy keeps increasing.The adaptability and transient response characteristics of renewable energy units to power grid strength have a significant effect on the stability characteristics of the connected large power grid.In this paper,the adaptability test system of renewable energy units to power grid strength is designed,and a detailed electromagnetic transient test model is built.Aiming at the digital packaging model and actual device of renewable energy unit controller,the test method of adaptability to power grid strength and transient response characteristics of renewable energy unit is proposed,and the main parameters describing the transient response characteristics of renewable energy unit are given.The test results can accurately quantify the response characteristics of renewable energy units to power grid strength,provide important technical reference for the power grid to accept renewable energy,and provide effective means for renewable energy manufacturers to optimize the adaptability of the unit to power grid strength.

关 键 词：新型电力系统 新能源机组 电磁暂态模型 电网强度 暂态响应 

分 类 号：TM73[电气工程—电力系统及自动化]