Controller Tuning Using a Cauchy Mutated Artificial Bee Colony Algorithm
Permanent Magnet Synchronous Motors (PMSM) are immensely popular because they can meet the huge capacity needs of industrial applications. Speed regulation of PMSM Drives with conventional Proportional-Integral (PI) regulator reduces the speed control precision because of the disturbances in Motor and load characteristics, leading to poor performance of whole system. The values so obtained may not give satisfactory results in a wide range of speed. In this research, we considered the Mathematical model of speed controller for controlling the speed, which can be formulated as an optimization problem subject to various constraints imposed due to motor and other limitation factors. For solving this problem we used a modified version of Artificial Bee Colony (ABC) algorithm known as Cauchy Mutation ABC (C-ABC).We first illustrate the proposed method using various standard benchmark functions and then it is used for tuning PI controller for speed regulation in PMSM drive. Empirical results obtained are compared with the basic version of ABC, which clearly indicates the superior performance of the C-ABC algorithm.
KeywordsPermanent Magnet Synchronous Motor Controller Tuning Bacterial Forage Optimization Cauchy Mutate Failure Count
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