高比例新能源电力系统的惯量控制技术与惯量需求评估综述

被引:153
作者
刘中建
周明
李昭辉
武昭原
李庚银
机构
[1] 华北电力大学新能源电力系统国家重点实验室
关键词
低碳; 高比例新能源电力系统; 惯性; 频率安全; 虚拟惯量; 惯量需求; 惯性服务;
D O I
暂无
中图分类号
TM73 [电力系统的调度、管理、通信];
学科分类号
120103 [信息系统与信息管理];
摘要
电力行业低碳发展的要求催生了以风光为代表的新能源发电的快速发展。风光发电通过逆变器并网,不具有同步发电机的惯性,导致高比例风光发电的接入降低了系统的惯量水平,且其出力的大幅波动和不确定性,都给系统频率安全带来了新问题。为此,对高比例新能源电力系统的惯量控制技术和惯量需求评估问题开展综述研究。从惯量的定义出发,分析惯量与频率变化的关系,明确了惯性响应与频率响应的区别及联系。针对基于逆变器并网的虚拟惯量技术,按照控制模型的外特性进行区分,给出了虚拟同步机的控制原理,并总结了虚拟同步发电机技术在风电与光伏方面的应用。高比例新能源的接入从系统层面对惯量水平及分布提出了新需求,因此,选取澳大利亚、爱尔兰与北美地区3个代表性地区的电力系统惯量需求评价指标及评估方法进行了对比。最后,从发展虚拟惯量技术、提出惯量需求评估指标及标准、提高惯量监测能力、合理配置惯性装置以及将惯性服务市场化这5个方面对我国新能源电力系统惯量问题提出了建议。
引用
收藏
页码:1 / 11+53 +53
页数:12
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