摘要
基于参数辨识的变压器保护原理需要对变压器绕组参数进行精确辨识。文章推导出双绕组单相和双绕组三相变压器的参数辨识方程,而后提出一种新的参数辨识算法,最小二乘法和粒子群优化算法相结合的混合算法,可以实现对变压器绕组参数的精确辨识。通过Matlab/Simulink进行仿真,仿真算例验证了该混合算法的可行性。该算法具有较好的应用前景。
New transformer protection principles based on parameter identification need to accurately identify transformer winding parameters.This paper deduces parameter identification equations of single-phase double-winding transformer and three-phase three-winding transformer.And then a new parameter identification algorithm is put forward on the basis of hybrid algorithm which consists of least squares method and particle swarm optimization algorithm.The new algorithm can realize precise identification of parameters of transformer winding.The simulation of matlab/simulink verifies the feasibility of hybrid algorithm.This algorithm has a good application prospect.
出处
《电气技术》
2014年第1期11-15,共5页
Electrical Engineering
基金
上海市教育委员会重点学科建设资助项目(J51301)
关键词
变压器保护
参数辨识
最小二乘法
粒子群优化算法
混合算法
transformer protection
parameter identification
least squares method
particle swarm optimization algorithm
hybrid algorithm
