A Metaheuristic Optimization Approach for Tuning of Fractional-Order PID Controller for Speed Control of Sensorless BLDC Motor

• Published in: Journal of circuits, systems, and computers Vol. 27; no. 8; p. 1850123
• Main Authors: Vanchinathan, K., Valluvan, K. R.
• Format: Journal Article
• Language: English
• Published: Singapore World Scientific Publishing Company 01.07.2018; World Scientific Publishing Co. Pte., Ltd
• Subjects: Algorithms; Brushless motors; Computer simulation; D C motors; Direct current; Error detection; Genetic algorithms; Heuristic methods; Optimization; Product design; Proportional integral derivative; Robust control; Rotor speed; Speed control; Steady state; Swarm intelligence; Time domain analysis; Tuning; Sensorless BLDC motor drive; fractional-order PID controller; optimal control; bat algorithm
• ISSN: 0218-1266; 1793-6454
• DOI: 10.1142/S0218126618501232

This paper deals with a novel method for Bat Algorithm (BA) based on optimal tuning of Fractional-Order Proportional Integral Derivative (FOPID) controller for governing the rotor speed of sensorless Brushless Direct Current (BLDC) motor. The BA is used for developing a novel optimization algorithm which can generate five degrees of freedom parameters namely K p , K i , K d , λ and μ of FOPID controller. The desired speed control and robust performance are achieved by using the FOPID closed loop speed controller with the help of BA for optimal tuning. The time domain specifications of a dynamic system for unit step input to FOPID controller for speed response such as peak time ( t r ), Percentage of overshoot (PO), settling time ( t s ), rise time ( t r ) have been evaluated and the steady-state error ( e ss ) of sensorless speed control of BLDC motor has been measured. The simulation results are compared with Artificial Bee Colony (ABC) optimization method and Modified Genetic Algorithm (MGA) for evaluation of transient and steady state time domain characteristics. The proposed BA-based FOPID controller optimization technique is more efficient in improving the transient characteristic performance and reducing steady state error.