Neural Network-Based Optimisation of Sinusoidal PWM Controller for VSI-Driven BLDC Motor

Although increasing the number of switches increases the switch losses, most designed controllers focus on controlling an inverter circuit with more than six switches. The paper aims to address this issue that arises in implementation of the voltage source inverter (VSI) for brushless DC (BLDC) moto...

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Main Authors: Owusu George, Annan John Kojo, Nunoo Solomon
Format: Article
Language:English
Published: Sciendo 2023-01-01
Series:Power Electronics and Drives
Subjects:
Online Access:https://doi.org/10.2478/pead-2023-0018
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author Owusu George
Annan John Kojo
Nunoo Solomon
author_facet Owusu George
Annan John Kojo
Nunoo Solomon
author_sort Owusu George
collection DOAJ
description Although increasing the number of switches increases the switch losses, most designed controllers focus on controlling an inverter circuit with more than six switches. The paper aims to address this issue that arises in implementation of the voltage source inverter (VSI) for brushless DC (BLDC) motors. It optimises the sinusoidal pulse width modulation (PWM) controller, minimising total harmonic distortion (THD) while keeping the VSI’s circuit at six switches to avoid increased switching losses. This was achieved by applying an artificial neural network (ANN) to generate a signal, which combines with the already existing reference and carrier signals. The addition of the new signal to the existing signals contributed to generating more pulses compared with the conventional sinusoidal PWM. Simulink was used to design the system and analyse its performance with the conventional and neutral point clamped (NPC) VSI systems. Results indicated that the proposed system performs better when controlled with an LCC filter. Compared with the control experiments, its output waveform has the lowest THD value, which is 6.04%. The switching losses of all the systems were also computed. Results from the computation indicated that the proposed system is capable of reducing the switching losses by 0.6 kW compared with the NPC VSI brushless DC motor (BLDCM) system. BLDCM speed was tested across various conditions; the results are reported in Section 5.
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spelling doaj.art-bde6997239fd44e69b676f1a8d0a175a2024-02-26T14:30:08ZengSciendoPower Electronics and Drives2543-42922023-01-018127529810.2478/pead-2023-0018Neural Network-Based Optimisation of Sinusoidal PWM Controller for VSI-Driven BLDC MotorOwusu George0Annan John Kojo1Nunoo Solomon21Department of Electrical and Electronic Engineering, University of Mines and Technology, Tarkwa, Ghana1Department of Electrical and Electronic Engineering, University of Mines and Technology, Tarkwa, Ghana1Department of Electrical and Electronic Engineering, University of Mines and Technology, Tarkwa, GhanaAlthough increasing the number of switches increases the switch losses, most designed controllers focus on controlling an inverter circuit with more than six switches. The paper aims to address this issue that arises in implementation of the voltage source inverter (VSI) for brushless DC (BLDC) motors. It optimises the sinusoidal pulse width modulation (PWM) controller, minimising total harmonic distortion (THD) while keeping the VSI’s circuit at six switches to avoid increased switching losses. This was achieved by applying an artificial neural network (ANN) to generate a signal, which combines with the already existing reference and carrier signals. The addition of the new signal to the existing signals contributed to generating more pulses compared with the conventional sinusoidal PWM. Simulink was used to design the system and analyse its performance with the conventional and neutral point clamped (NPC) VSI systems. Results indicated that the proposed system performs better when controlled with an LCC filter. Compared with the control experiments, its output waveform has the lowest THD value, which is 6.04%. The switching losses of all the systems were also computed. Results from the computation indicated that the proposed system is capable of reducing the switching losses by 0.6 kW compared with the NPC VSI brushless DC motor (BLDCM) system. BLDCM speed was tested across various conditions; the results are reported in Section 5.https://doi.org/10.2478/pead-2023-0018artificial neural networkharmonicssinusoidal pwminvertermatlab/simulink
spellingShingle Owusu George
Annan John Kojo
Nunoo Solomon
Neural Network-Based Optimisation of Sinusoidal PWM Controller for VSI-Driven BLDC Motor
Power Electronics and Drives
artificial neural network
harmonics
sinusoidal pwm
inverter
matlab/simulink
title Neural Network-Based Optimisation of Sinusoidal PWM Controller for VSI-Driven BLDC Motor
title_full Neural Network-Based Optimisation of Sinusoidal PWM Controller for VSI-Driven BLDC Motor
title_fullStr Neural Network-Based Optimisation of Sinusoidal PWM Controller for VSI-Driven BLDC Motor
title_full_unstemmed Neural Network-Based Optimisation of Sinusoidal PWM Controller for VSI-Driven BLDC Motor
title_short Neural Network-Based Optimisation of Sinusoidal PWM Controller for VSI-Driven BLDC Motor
title_sort neural network based optimisation of sinusoidal pwm controller for vsi driven bldc motor
topic artificial neural network
harmonics
sinusoidal pwm
inverter
matlab/simulink
url https://doi.org/10.2478/pead-2023-0018
work_keys_str_mv AT owusugeorge neuralnetworkbasedoptimisationofsinusoidalpwmcontrollerforvsidrivenbldcmotor
AT annanjohnkojo neuralnetworkbasedoptimisationofsinusoidalpwmcontrollerforvsidrivenbldcmotor
AT nunoosolomon neuralnetworkbasedoptimisationofsinusoidalpwmcontrollerforvsidrivenbldcmotor