Abstract |
In the paper problems of dynamic control of self-commutated synchronous motor (SCSM) with wide speed control range on the base of computer simulation method were solved. Good dynamic motor performance requires quick motor torque control as well as efficient control of machine side converter (MSC), which provides safety commutation process in inverter mode operation. A new general criterion of MSC control - commutation margin flux, which is valid in both speed ranges (below and over rated value) was applied in an adaptive control algorithm construction. Due to this a safety MSC operation during rapid current changes, with minimum possible inverter delay angle was obtained. Introduction of forced commutation, used in torque reverse algorithm, gave good dynamic properties of motor operation. All analyzed and solved control problems are well illustrated by proper transient's
diagrams. |