Experimental investigation of feedback linearization controller for switched reluctance motor

In this paper we propose a low cost implementable nonlinear controller for high performance speed regulation control of the SRM for direct-drive servo applications. We then present design of a feedback linearization controller for the SRM. Instead of decoupled control as proposed by previous researchers, we propose to use only one voltage regulator to feed all the four phases of the motor. This will result in an affordable drive system. Hardware implementation of the nonlinear controller has been achieved using Texas Instrument's TMS320C50 Digital Signal Processor. Experimental results obtained are also presented.