Fixed structure H_∞ loop shaping control of switched reluctance motor for electrical vehicle

摘要

This paper presents a new control design based on fixed order H_∞ loop shaping approach for switched reluctance motor (SRM) drive in electrical vehicle. H_∞ control is a powerful technique to design robust controllers for systems with uncertainties and disturbances. However, controllers designed by this technique are complex, with a high order, so it is difficult to implement them on electric vehicles. The purpose of this paper is to overcome this drawback by applying a technique based on fixed structure H_∞ loop shaping control for SRM drive. To show the performance of this control approach, a robustness analysis is performed by comparing fixed structure and conventional H_∞ loop shaping controllers using the concept of the singular structured value, i.e. the μ-analysis. The main interest of this approach is highlighted by simulation and experiment results.