WASET
	%0 Journal Article
	%A Mazidah Tajjudin and  Norhashim Mohd Arshad and  Ramli Adnan
	%D 2013
	%J International Journal of Electrical and Computer Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 78, 2013
	%T A Design of Fractional-Order PI Controller with Error Compensation
	%U https://publications.waset.org/pdf/5265
	%V 78
	%X Fractional-order controller was proven to perform better than the integer-order controller. However, the absence of a pole at origin produced marginal error in fractional-order control system. This study demonstrated the enhancement of the fractionalorder PI over the integer-order PI in a steam temperature control. The fractional-order controller was cascaded with an error compensator comprised of a very small zero and a pole at origin to produce a zero steady-state error for the closed-loop system. Some modification on the error compensator was suggested for different order fractional integrator that can improve the overall phase margin.

	%P 727 - 735