Fuzzy Logic Applications in Computer Science and Mathematics

13Case Study on Fuzzy Logic: Fuzzy Logic-Based PID Controller to Tune the DC Motor Speed

Devendra Kumar Somwanshi

Department of ECE, Poornima College of Engineering, Jaipur, Rajasthan, India

Email: [e-mail]

Abstract

The cost of DC motor is much higher than induction motor, but DC motors has fantastic speed control attributes, and due to this attributes, it is highly utilized in the industry. Many researches have done to control or to tune the DC motor speed. To better control or tune the DC motor speed researches were started from the basic PID controller. Then, many combinations were used with the PID controllers to tune better. In combinations, fuzzy logic controllers, fractional order fuzzy tuning, gravitational search algorithms, genetic algorithm, micro controller-based PID controllers, and many other methods were developed.

More than 50 papers are reviewed in several areas, such as to tune the DC motor speed, controller design, and fuzzy-based tuning of boundaries to examine and figure out current difficulties and extent of work.

In this chapter, the fuzzy PID controller is designed and analyzed to tune the DC motor speed on the LabVIEW. The whole designing process is elaborated in which all the steps are included that how fuzzy PID controller design, how the fuzzificaion is done for the parameter values on the basis of membership functions. The fuzzy inference system is developed on the basis of fuzzy-associated memory table and rule base system. The values ...