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BLDC Motor Drives with A Programmable Simplified C-Block to Generate Accurate Six-Step PWM Based on STM32 Microcontroller
Mentari Putri Jati, Faculty of Engineering, Universitas Negeri Yogyakarta, Yogyakarta, Indonesia
Mochamad Ari Bagus Nugroho, Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya
Ony Asrarul Qudsi, Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya
Indhana Sudiharto, Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya
Farid Dwi Murdianto, Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya
Endro Wahjono, Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya
Abstract
This paper presents a digital implementation of a brushless direct current motor (BLDCM) drive with a six-step pulse width modulation (PWM) using a programmable simplified C-block based on the STM32 microcontroller. The implementation is conducted through the PSIM simulation platform, which is commonly used for power electronics and motor control. This approach combines the benefits of using a programmable simplified C-block for precise and flexible programming with the PWM concepts of the STM32 microcontroller. The PWM method used on the BLDCM drive is the unipolar upper PWM technique (H~PWM_L~ON). The performance of the PWM implementation is analyzed in detail, including the accuracy of the PWM generation using a Fast Fourier Transform (FFT), the gating of the IGBTs in the three-phase inverter, and the effect of the duty cycle on the BLDCM's speed, phase voltage, and phase current.
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DOI: https://doi.org/10.21831/elinvo.v7i2.52992
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