热蒙机型RAM发电机仿真建模与保护配置及定值整定研究  

Study on Simulation and Protection Configuration and Setting of Remeng RAM Generator

作　　者：邹伟 李润培 桂林[3] 陈鑫 王祥珩[3] ZOU Wei;LI Runpei;GUI Lin;CHEN Xin;WANG Xiangheng(Daya Bay Nuclear Power Operations and Management Co.Ltd.,Shenzhen 518124,China;State Grid Beijing Tongzhou Electric Power Supply Company,Beijing 101149,China;Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]大亚湾核电运营管理有限责任公司,广东省深圳市518124 [2]国网北京通州供电公司,北京市101149 [3]清华大学电机工程与应用电子技术系,北京市100084

出　　处：《水电与抽水蓄能》2024年第5期26-32,42,共8页Hydropower and Pumped Storage

基　　金：国家自然科学基金资助项目“电容电流剧增条件下大型发电机定子接地故障分析与优化设计研究”(52077115)。

摘　　要：大亚湾核电站棒控电源(rotating asynchronous machine,RAM)是两台带飞轮的电动发电机,采用的是热蒙机型(进口机型/有刷相复励励磁方式),由于其保护装置并非微机型且缺乏故障录波装置,难以判断其他核电站发生的RAM系统失磁与过流保护失配导致停堆事故是否存在共性风险。文章首先建立了热蒙机型RAM系统的PSCAD模型,通过真机试验结果和机端短路故障的仿真分析证明其正确性;然后通过不同负载工况下发生不同类型失磁故障后非故障机机端电流的变化情况,对热蒙机型RAM发电机过流保护的配置及定值整定进行合理化建议,避免RAM系统冗余设计失效;最后进一步对热蒙机型RAM系统出口断路器过流保护的配置及定值整定进行了优化。相关工作为热蒙机型RAM发电机保护装置国产化改造奠定了基础。Daya bay nuclear power plant rotating asynchronous machine(RAM) consists of two electric generators with flywheels.It uses Remeng generator (imported model/brushed phase compound excitation),since its protection device is not microcomputer type and lacks fault recording device,it is difficult to judge whether there is a common risk of reactor shutdown due to the mismatch of loss of field and overcurrent protection in other nuclear power plants.The article firstly establishes the PSCAD model of the RAM system of Remeng Generator,and proves its correctness through the results of prototype experiment and the simulation analysis of the short-circuit fault at the machine terminal;then through the changes of the current at the machine terminal of the non-faulty machine after the occurrence of different types of loss-of-field faults under different load,the article makes a proposal for the configuration and setting of overcurrent protection of Remeng RAM generators,so as to avoid the failure of redundant design of RAM system.Finally,the configuration and setting of the overcurrent protection of the breaker of the RAM system of Remeng generator are further optimized.The relevant work lays a foundation for the localization and transformation of the RAM generator protection device of Remeng generator.

关 键 词：棒控电源 电动发电机 失磁故障 机端短路 保护配置及定值整定 

分 类 号：TB857.3[一般工业技术—摄影技术]