电测与仪表2017，Vol.54Issue(13)：8-12,19,6.
单相变压器漏感参数识别计算方法研究
Research on leakage inductance parameter identification method of single phase transformers
摘要
Abstract
The leakage inductance parameter identification of power transformer can be regarded as the basis of fault identification.The accuracy of leakage inductance identification is the key of transformer fault identification.Therefore, according to equivalent circuit equilibrium equations, leakage identification methods of single-phase transformer based on least square method are proposed in this paper.The relative error of leakage inductance measurement through using EMTP-ATP simulation is below 0.2%.Transformer experiments are conducted on a single-phase transformer, which is used in dynamic simulation laboratory.The relative error of the test results compared with the calculating results on the light of nameplate is 3.84%.In addition, leakage inductance is measured under different frequency and different saturation levels.Results show that the leakage inductance of transformer can be accurately measured by leakage inductance parameter identification method based on least square method, and the leakage inductance is not sensitive to frequency and saturation level.关键词
变压器/漏感测量/最小二乘法/参数识别Key words
transformer/measurement of leakage inductance/least square method/parameter identification分类
信息技术与安全科学引用本文复制引用
周泽宏,姚陈果,王俊凯,刘鑫..单相变压器漏感参数识别计算方法研究[J].电测与仪表,2017,54(13):8-12,19,6.基金项目
国家自然科学基金资助项目(51377175) （51377175）
