摘要
异步电动机可以通过空载实验和短路实验来测定其参数,但仅通过这两个实验无法将定转子漏抗分开。利用异步电动机的T型等效电路,计算出等效阻抗的表达式,同时利用负载实验计算其实际值,并根据两者相等推出定转子漏抗的计算表达式。该方法避免了以往漏抗辨识过程中出现的发散等问题,且计算简单,具有实用价值。文章还对如何减小测量误差,提高辨识精度进行了研究。
The no -load test and short -circuit test can mensurate parameters of asynchronous motor,but cant separate stator reactance from rotor reactance. Using circuit of T model, the expression of equivalent impedance was calculated, and its actual value was calculated by load test. According to the their equality,the expression of stator and rotor reactance was obtained. The method avoided radiation during identification and was easy to calculate, which has applied value. How to minish measure error and enhance identification precision was also studied in the paper.
出处
《微特电机》
北大核心
2007年第2期27-28,34,共3页
Small & Special Electrical Machines
关键词
异步电动机
参数辨识
漏抗
测量误差
asynchronous motor
parameter identification
leakage reactance
measure error
