计及绕组空间分布特征的核电站棒控电源发电机定子接地故障定位方法OA
Stator Grounding Fault Location Method of CRDM Power System Generator in Nuclear Power Plant Considering Spatial Distribution Characteristics of Windings
发电机定子接地故障是核电站棒控电源系统中最为常见的故障形式,精确求解绕组故障位置对实现快速故障检修和供电恢复具有重要意义.该文基于棒控电源系统发电机定子绕组的空间结构特点,对Zig-Zag绕组接线方式下的绕组电势分布特征进行几何建模;基于绕组电势空间分布特征构建绕组故障点定位方法,实现全绕组精确定位;PSCAD/EMTDC仿真分析和动模试验验证了所提方法的准确性,并表明其不受接地故障位置、过渡电阻及发电机运行状况的影响.
Generator stator ground faults are the most common faults in the control rod drive system of a nuclear power plant.Accurately solving the winding fault location is of great significance for rapid fault maintenance and power supply recovery.Based on the spatial structure characteristics of the generator stator winding of the rod-controlled power supply system,the geometric modeling of the winding potential distribution characteristics under the Zig-Zag winding connection mode is carried out.Based on the spatial distribution characteristics of winding potential,the winding fault location method is constructed to realize the precise positioning of the whole winding.PSCAD/EMTDC simulation analysis and dynamic simulation test verify the accuracy of the proposed method,and prove that it is not affected by the grounding fault location,transition resistance and generator operation status.
王义凯;汤宸骁;乔健;王增平;王英阁;尹项根;徐天乐;顾乔根
新能源电力系统全国重点实验室(华北电力大学),河北省 保定市 071003新能源电力系统全国重点实验室(华北电力大学),河北省 保定市 071003新能源电力系统全国重点实验室(华北电力大学),河北省 保定市 071003新能源电力系统全国重点实验室(华北电力大学),河北省 保定市 071003新能源电力系统全国重点实验室(华北电力大学),河北省 保定市 071003强电磁技术全国重点实验室(华中科技大学),湖北省武汉市 430074南京南瑞继保电气有限公司,江苏省 南京市 211102南京南瑞继保电气有限公司,江苏省 南京市 211102
信息技术与安全科学
棒控电源系统定子接地故障绕组故障定位Zig-Zag接线方式绕组电势空间分布特征
rotating asynchronous machinestator ground faultwinding fault locationZig-Zag wiring formspatial distribution characteristics of winding potential
《中国电机工程学报》 2026 (14)
5783-5793,中插7,12
国家自然科学基金项目(52407100)河北省自然科学基金项目(E2025502012).Project Supported by National Natural Science Foundation of China(52407100)Natural Science Foundation of Hebei Province(E2025502012).
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