International Journal of Electronic and Electrical Engineering. ISSN 0974-2174 Volume 5, Number 1 (2012), pp. 11-21 © International Research Publication House http://www.irphouse.com Tuning and Analysis of Fractional Order PID Controller Vineet Shekher 1 , Pankaj Rai 2 and Om Prakash 3 1 Assistant Professor, Hindu College of Engineering, Sonepat, Haryana, India 2 Head, Electrical Engineering, Birsa Institute of Technology, Sindri, Dhanbad, Jharkhand, India 3 Associate Professor, Chemical Engineering, Birsa Institute of Technology, Sindri, Dhanbad, Jharkhand India Abstract This paper presents the development of a new tuning method and performance of the fractional order PID controller includes the integer order PID controller parameter. The tuning of the PID controller is mostly done using Zeigler and Nichols tuning method. All the parameters of the controller, namely p K (Proportional gain), i K (integral gain), d K (derivative gain) can be determined by using Zeigler and Nichols method. Fractional order PID (FOPID) is a special kind of PID controller whose derivative and integral order are fractional rather than integer. To design FOPID controller is to determine the two important parameters λ (integrator order) and μ (derivative order).In this paper it is shown that the response and performance of FOPID controller is much better than integer order PID controller for the same system. Introduction PID controller is a well known controller which is used in the most application.PID controller becomes a most popular industrial controller due to its simplicity and the ability to tune a few parameters automatically. According to the Japan electric measuring instrument manufacture’s association in 1989, PID controller is used in more than 90% of the control loop. As an example for the application of PID controller in industry, slow industrial process can be pointed, low percentage overshoot and small settling time can be obtained by using this controller. This controller provides feedback, it has ability to eliminate steady state offsets through derivative action. The derivative action in the control loop will improve the damping and therefore by accelerating the transient response, a lighter proportional gain can be