Converter control system for synchronous machine - uses non-reversible model with stator current components passed to coordinate rotating devices

摘要

The method uses an equivalent model of the synchronous machine, there being three return paths for three supply controllers. These have control inputs for the torque, phase angle, voltage and current, with outputs for the components of the stator current and the field current. The two components of the stator current corresponding to the motor position are passed to a coordinate rotating device and transformed so that either the rotor position is directly given or the rotation between current and rotation is obtained. The model is non-reversible, and a second voltage model can be used to determine the values of the components of the stator voltage. These can be processed by a coordinate rotating system giving the voltage components from the stator at its outputs.