大型变速抽水蓄能发电电动机不同进相工况下磁密与损耗研究
Research on Flux Density and Loss of Variable Speed Pumped Storage Generator-motor under Different Leading Phase Operation
张勇 1韩继超 2张健 1孙玉田 3李沅橙 2李桂芬 3胡刚 3张春莉3
作者信息
- 1. 雅砻江流域水电开发有限公司,成都 610051
- 2. 哈尔滨理工大学电气工程学院,哈尔滨 150080
- 3. 哈尔滨电机厂有限责任公司,哈尔滨 150040
- 折叠
摘要
大型电机进相运行是维持电网电压及无功平衡的重要方式.为了研究不同进相运行时大型变速抽水蓄能电机内电磁场的分布及损耗变化,本文建立了 326MW变速抽水蓄能发电电动机二维电磁场模型,对比分析了变速抽水蓄能电机在不同进相运行工况下的气隙磁密、定子电流波形以及定转子铁芯采样点处的磁密值,探究了定子铁芯损耗和转子铁芯损耗的变化情况.同时采用相同的计算方法对小容量10MW变速抽水蓄能发电电动机进行研究,计算结果和试验测试值较为接近,验证了本文计算方法的可行性.
Abstract
The leading phase operation of large generator-motor is an important way for maintaining the voltage and reactive power balance of the grid.In order to study the variation of electromagnetic field and losses of large variable speed pumped storage generator-motor during different leading phase operation,two-dimensional electromagnetic field model of 326MW variable speed pumped storage generator-motor is established in this paper.The air gap flux density,stator current waveforms and magnetic density at the sampling point of stator and rotor core of variable speed pumped storage generator-motor are compared and analyzed under different leading phase operation conditions,and the change of the stator core loss and rotor core loss are studied.At the same time,the small capacity of 10MW variable speed pumped storage generator-motor is studied using the same calculation method.The calculation results are closer to the test values,which verifies the feasibility of the calculation method in this paper.
关键词
变速抽水蓄能发电电动机/进相运行/磁密/铁芯损耗Key words
variable speed pumped storage generator-motor/leading phase operation/flux density/core loss引用本文复制引用
基金项目
国家自然科学基金(52177037)
黑龙江省自然科学基金(TD2021E002)
出版年
2024
NETL
NSTL
万方数据