Detect automatically manner and device in rotor initial position angle of adjustable-speed machine

摘要

Adjustable-speed machine (2) detect automatically manner and device in rotor initial value angle. This manner consists of the step below. Access voltage angle is offered, combining with the access voltage amplitude V of given, it generates access voltage vector, depending on three-dimensional vector width converter SVPWM, it converts access voltage vector to the Drive signal, Drive the rotor side PWM converter (5), it generates the alternating voltage signal, that the adjustable-speed machine (2) impresses in the rotor coil, the adjustable-speed machine (2) rotor machine angle n* is acquired, stator voltage vector angle is acquired, rotor machine angle n* and access voltage angle of given are done stator voltage vector angular empty subtraction, rotor initial position angle is acquired. Here, n the adjustable-speed machine (2) is the number of pole pairs. The adjustable-speed machine (2) the detect automatically in rotor initial position angle is implemented by this manner and introducing the device. Choice figure Drawing 5