摘要
提出一种非侵入式感应电动机参数辨识的方法.利用电动机起动电流在某些时段具有稳态电流圆图的特征拟合出感应电动机圆图,由感应电动机基本方程导出基于圆图进行参数辨识的数学表达式.物理实验的参数辨识结果表明:该方法具有较高的精度,简便易行;可在电力用户端口处进行,无需侵入用户内部,故它对电力负荷管理、电力节能乃至电力用户负荷动态特性的调查都有意义.
A non-intrusive parameter identification method of induction motor was presented. The circle track of steady terminal current of induction motor can be fitted based on the fact that the start-up terminal current of induction motor has circle characteristics in some periods of the start-up process. At the same time, a set of mathematical expressions based on the circle diagram of motor for parameter identification of induction motor was deduced from the basic equations of the induction motor. The parameter identification results of physical experiment show that the proposed method has high precision and is convenient. Since this method can be implemented at load port without intruding into the inner side of the power customers, it is significant to the power load management, the electrical energy conservation and even the power load dynamic characteristic investigation.
出处
《天津大学学报》
EI
CAS
CSCD
北大核心
2008年第11期1269-1275,共7页
Journal of Tianjin University(Science and Technology)
基金
国家重点基础研究发展计划(973)资助项目(2004CB217904)
国家自然科学基金重大资助项目(50595413)
"十一五"国家科技支撑计划重大资助项目(2006BAJ03A06)
关键词
感应电动机
非侵入式
电机圆图
参数辨识
在线实测
induction motor
non-intrusion
steady terminal current circle diagram of motor
parameter identification
online measurement
