Comparison of different ways switching control synchronous motor with permanent magnet at energy indicators and settings properties

There are various ways of switching the windings SMPM. This raises the problem of the comparative evaluation of methods of switching windings SMPM in terms of energy efficiency, the possibility of expanding the range of operating speeds and torques as well as improving the adjustment properties. This article describes a solution to this problem. The recommendations of making rational to choose a way of eating in a particular SMPM drive. Comparative evaluation of the methods described above switching SMPM held at the same value of the parameter 4 and v. As a result, the engine having a relatively small value of inductance of armature winding, using a discrete switching in terms of energy performance of appropriate use of 120-degree switch, in which the rate is no worse than in vector control. The most effective is a neutral switching (θ = 0), which provides for the maximum available speed of electromagnetic efficiency and close to the maximum value of the electromagnetic torque. Vector control by adjusting the angle of SMPM when the switching speed of the opportunity not only to solve the problems of minimizing energy consumption motor, but also significantly change the mechanical characteristics of the characteristics shared by the DC motor with separate excitation, up features the same engine series excitation.