Modified Luo converter based FOPID controller for torque ripple minimization in BLDC drive system

Abstract

The Smart controller for brushless direct current (BLDC) Motor Drive System Speed Regulation Using Multi-Purpose Feature is proposed in this paper. The novelty of the presented approach lays in precisely maintains the level of the voltage source inverter DC voltage demanded proper operation of the motor. The optimum gain parameters are required with the use of the Fractional order PID controller (FOPID) controller to reduce the torque ripples and regulate the BLDC motor speed. The hybrid technique is the synthesis of a modified Luo converter based on the Adaptive neuro-fuzzy inference system (ANFIS) and Elephant herding optimization (EHO). Initially, the nature-inspired optimization algorithm of the EHO is analyzed to find the error function. In addition, the efficient ANFIS controller is made by integrating a systematic approach to track error functions in order to provide the best optimal gain values. Harmonics and torque ripples are reduced with this control strategy. Speed ​​and torque output was evaluated based on the proposed control strategy.. The hybrid technology suggested is the combination of ANFIS and EHO to control the speed based on the BLDC motor power parameters. Intel(R) Core(TM) i5 CPUs, 4 GB RAM, and MATLAB/Simulink 7.10.0 (R2015a) technologies to reduce the torque on the BLDC motor.

Appendices

Appendix

Luo converter parameter

Parameters	Value
$L_{in}$	1 ${\text{mH}}$
$C_{in}$	393.7 µF
$L_{1}$,$L_{2}$	3.09 ${\text{mH}}$
$L_{3}$,$L_{4}$	486 µH
$C_{1}$,$C_{2}$	393.8 nF
$C_{0}$	2123.1 µF

Nomenclature

$V_{A} ,V_{B} \,\;{\text{and}}\;\,V_{C}$ :

Terminal three phase voltages of the stator winding

$i_{A} ,i_{B} \,\;{\text{and}}\;\,i_{C}$ :

Stator phase current

$e_{A} ,e_{B} \;{\text{and}}\;\,e_{C}$ :

Three-phase back EMF

$L$ :

Armature self inductance

$u_{N}$ :

Neural point of the motor voltage

$K$ :

Constant of back EMF

$\omega$ :

Angular speed of the rotor

$\theta$ :

Rotor position

$T_{e}^{ * }$ :

The reference torque of motor

$Sw_{1}$ :

Luo converters switch

$L_{i1} ,L_{o1}$ :

Inductors

$D_{p} ,D_{p1}$ :

Diodes

$Sw_{2}$ :

Supply voltage the switch

$K_{p}$ :

Gain of proportionality

$K_{i}$ :

The gain of Integral

$K_{d}$ :

The gain of Derivative

$\lambda \;{\text{and}}\;\mu$ :

The differential-integral's order