Determination of d and q reactances of permanent-magnet synchronous motors without measurements of the rotor position

被引：62

作者：

Nee, HP ^{[1
]}

Lefevre, L ^{[1
]}

Thelin, P ^{[1
]}

Soulard, J ^{[1
]}

机构：

[1] Royal Inst Technol, KTH, Dept Elect Power Engn, SE-10044 Stockholm, Sweden

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2000年 / 36卷 / 05期

关键词：

dq model; permanent-magnet machine; power factor; synchronous reactances;

D O I：

10.1109/28.871281

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The interest in permanent-magnet synchronous motors:(PMSMs) is increasing in a wide area of applications. Since most PMSMs will operate without a shaft sensor in the future, valuable: information for experimental determination of machine parameters will be lost,In this paper, therefore, a method is presented where the induced EMF and the d-axis reactance are determined in a no-load test and the q-axis reactance is determined in a load test. The load angle delta is determined from the load test by means of a new analytical method. In this way, no separate measurement of the load angle is required. The method is especially suitable for line-start PMSMs which normally operate with negative d-axis current and, therefore, are not saturated in the d-axis flux paths. Moreover, the method is very simple to carry out for any laboratory technician, since the only tests that have to be made are standard tests which are made on standard induction motors on a regular basis.

引用

页码：1330 / 1335

页数：6