大型水轮发电机的饱和电抗值测定方法研究  

Research on the Measurement Method of Saturated Reactance Value of Large Hydro-generators

作　　者：何月亭 He Yueting(Hangzhou Jianghe Hydropower Technology Co.,Ltd.,Hangzhou,China)

机构地区：[1]杭州江河水电科技股份有限公司,浙江杭州

出　　处：《科学技术创新》2023年第7期41-44,共4页Scientific and Technological Innovation

摘　　要：在大型水轮发电机组中,饱和电抗值对于安全生产和安全运行有重要意义,但由于电压高、电流大、容量可调等原因,在试验过程中,考虑风险因素,不易实现,难以直接通过三相突然短路试验来测定水轮发电机瞬态相关参数。通过试验研究得出,在施加不同电压下,测定多组电抗非饱和值,然后通过数据分析,推测计算水轮发电机直轴瞬态电抗与超瞬态电抗的饱和值,通过试验分析,该方法得出的饱和电抗值与设计值偏差小于10%,满足测试需要。In large hydro-generators,electric generator,the load characteristic parameters such as reactor loss and temperature rise are very important for safe production and safe operation.It is difficult to measure the relevant parameters of hydro-generator directly through three-phase sudden short-circuit test in the course of test.Through experimental research,under different voltages,the unsaturated values of multi-group reactance are measured,and then the saturation values of hydro-generator are calculated by data analysis,through experimental analysis,the deviation between the saturated reactance value and the designed value is less than 10%,which meets the test requirement.

关 键 词：水轮发电机 饱和电抗值 瞬态参数 

分 类 号：TM312[电气工程—电机]