超超临界机组电网低频响应能力提升改造可行性分析  

Feasibility Analysis on Improving Low-frequency Response Capability of Ultra-supercritical Units

作　　者：袁岑颉 吴孚辉 鲍丽娟 俞刚 蒋雄杰 宋振明 张江丰 YUAN Cenjie;WU Fuhui;BAO Lijuan;YU Gang;JIANG Xiongjie;SONG Zhenming;ZHANG Jiangfeng(Zhejiang Zheneng Jiahua Power Generation Co.,Ltd,Jiaxing 314201,China;State Grid Zhejiang Electric Power Research Institute,Hangzhou 210014,China)

机构地区：[1]浙江浙能嘉华发电有限公司,浙江嘉兴314201 [2]国网浙江省电力有限公司电力科学研究院,浙江杭州310014

出　　处：《电力科学与工程》2020年第7期21-27,共7页Electric Power Science and Engineering

基　　金：浙能集团科技项目(ZNKJ-2019-011)。

摘　　要：随着电网低频事件的不断增多和超超临界机组的不断投产,该类型机组电网低频响应能力的重要性愈发凸显。电网低频响应最新补偿标准颁布,超超临界机组电网低频响应能力提升改造已被发电企业提上日程。通过对目前较为成熟的多项一次调频优化措施进行可行性分析,提出适当提高低负荷段的滑压曲线,结合高加抽气回热技术、增加大频差控制逻辑的方法进行超超临界机组低频响应能力提升改造能够达到预期目标,可作为今后同类型机组在电网低频响应能力提升改造时的理论依据。At present,the low-frequency response capability of ultra-supercritical units becomes significantly important with the increase of low-frequency events in power grid and the continuous production of ultra-supercritical units.As the latest compensation standard for low-frequency response of power grid issues,it can be seen that the upgrading of low-frequency response capacity of ultra-supercritical power grid has been put on the agenda of power generation enterprises.Through the feasibility analysis of several mature optimization measures of primary frequency regulation,it proposes to appropriately increase the sliding pressure curve of low load section,combine with the technology of air extraction and heat recovery of high-pressure heater and increase the control logic of large-frequency difference,so as to improve the low-frequency response ability of ultra-supercritical units.In this way,it can achieve the expected goal,which can be used as the theoretical basis for improving the low-frequency response capacity of the same type of units in the future.

关 键 词：一次调频 超超临界 两个细则 低频响应 

分 类 号：TM342[电气工程—电机]