2019 6th International Conference on Advanced Control Circuits and Systems (ACCS) & 2019 5th International Conference on New Paradigms in Electronics & information Technology (PEIT) | 2019
Improved Dynamics Proportional-Integral Control of Four-Phase 8/6 Switched Reluctance Motor
Abstract
This paper presents an improved dynamics proportional-integral (IDPI) speed control for four-phase 8/6 switched reluctance motor (SRM). The SRM is used in the industrial applications owing to its simple structure, low cost, fault-tolerance, and high torque to inertia ratio. In this paper, the 75 kW, four-phase 8/6 SRM is supplied from asymmetric power converter (APC) with soft switching method. The parameters of the proposed IDPI speed control are calculated from the mechanical mathematical model and the pre-defined drive system response. By obtaining the IDPI parameters, different speed response can be accomplished at various operating conditions. Moreover, the SRM currents are controlled by hysteresis current control (HCC). The proposed IDPI is assessed and compared with the neural network and the conventional PI controllers. The comparison between the three controllers comprises the rise time, settling time, overshoot, undershoot, speed error, and the torque ripples percentage. The proposed IDPI robustness is investigated during load disturbance and 100% increase in the motor inertia conditions.