发电机轴电压自动抑制方法研究  

Research on Automatic Suppression Method of Generator Shaft Voltage

作　　者：李坚胜 LI Jiansheng(Taizhou Power Plant,Zhejiang Zheneng Electric Power Co.,Ltd.,Taizhou,Zhejiang 318000,China)

机构地区：[1]浙江浙能电力股份有限公司台州发电厂,浙江台州318000

出　　处：《自动化应用》2025年第7期192-194,共3页Automation Application

摘　　要：为有效抑制发电机轴电压,以某发电机为例,开展轴电压自动抑制方法的设计研究。建立双馈发电机等效电路模型,计算发电机轴电压;在发电机端和励磁端分别装设无源RC接地电路,设计发电机对称互补RC各模块;通过绝缘材料将转子与轴承内圈进行绝缘,承担部分轴电压,实现基于转子法兰绝缘设计的轴电压自动抑制。实践结果表明,设计方法可抑制发电机轴电压。To effectively suppress the shaft voltage of a generator,taking a certain generator as an example,the design and research of an automatic suppression method for shaft voltage are carried out.Establish an equivalent circuit model for doubly fed generators and calculate the generator shaft voltage.Install passive RC grounding circuits at the generator end and excitation end respectively,and design symmetrical complementary RC modules for the generator.Insulate the rotor and the inner ring of the bearing with insulating materials,bear part of the shaft voltage,and achieve automatic suppression of shaft voltage based on rotor flange insulation design.The practical results show that the design method can suppress the generator shaft voltage.

关 键 词：发电机 等效电路模型 RC模块 自动抑制 轴电压 

分 类 号：TM311[电气工程—电机]