Average Torque Control of the Switched Reluctance Motor in High Speed Zone

The paper discusses algorithms for controlling the average torque value of a switched reluctance motor in a high-speed zone in the mode of operation with discontinuous phase current. In this zone, the average torque decreases sharply with increasing speed and its increase can be achieved only by shifting the position of the inclusion of phases in the direction of advancing with increasing speed. In known control algorithms, these positions are predefined and set in a table. In practice, this approach is not convenient, because each time for motors with different parameters it is necessary to obtain new tabular data either experimentally or by modeling. The authors studied the dependence of the average torque on the position and speed of phase switching and found a universal analytical representation of these dependencies, taking as a basis the representation of complex nonlinearities in the form of the product of two nonlinear functions of one variable. These dependencies are used by the authors in the proposed control algorithm. Simulation in MATLAB-SIMULINK is selected as the main tool for research and verification of the proposed control algorithm.