电网技术2025，Vol.49Issue(10)：4003-4010,中插2,9.DOI:10.13335/j.1000-3673.pst.2025.0698
可变速双轴励磁调相机转子结构设计及阻尼材料优化
Characteristics of Rotor Magnetomotive Force and Asynchronous Behavior of Variable-speed Dual-excited Synchronous Condenser
摘要
Abstract
When a dual-excited synchronous condenser(DESC)provides voltage support to the system,the current diversion effect of the damping winding suppresses excitation overcurrent and prevents unit disconnection.However,the demagnetizing effect of the damping winding also reduces the inertial power,weakening its inertia support capability.To balance the voltage support capability and inertia support capability of the DESC,this paper proposes a rotor structure with symmetrical field windings.The magnetomotive force(MMF)expressions of the field windings and damping windings under two-phase AC excitation are derived.The influence of rotor MMF harmonics on the stator electromotive force(EMF)waveform is studied.The mechanism of interharmonic component generation in the stator EMF is revealed.A method to eliminate interharmonic components through rotor pitch optimization is proposed.The impact of damping winding conductivity on voltage and inertia support capabilities is studied.Based on this,an optimization method for damping winding materials that balances transient voltage support and inertia support is identified,and the optimal damping winding conductivity is determined.The research findings can provide a foundation for optimizing the rotor structure of DESCs and enhancing their transient performance.关键词
双轴励磁调相机/转子磁动势/间谐波/阻尼绕组Key words
dual-excited synchronous condenser/rotor magnetomotive force/interharmonics/damping winding分类
信息技术与安全科学引用本文复制引用
杨广亮,许国瑞,申海鹏,付高森,李志强,李伟力..可变速双轴励磁调相机转子结构设计及阻尼材料优化[J].电网技术,2025,49(10):4003-4010,中插2,9.基金项目
国家自然科学基金项目:"提升电力系统稳定能力的新型双轴励磁发电调相机原理及其控制策略"(U23B20130).Project Supported by National Natural Science Foundation of China(U23B20130). （U23B20130）
