Design and Implementation of a Low-Cost and Low-Power Converter to Drive a Single-Phase Motor

Abstract

This research introduces a cost-effective converter for single-phase machines, aiming to enhance efficiency and reduce energy consumption in retrofit applications. Single-phase motors commonly found in household appliances often suffer from low efficiency, resulting in wasted energy. To tackle this problem, a dedicated converter was proposed to replace the existing capacitors and improve the motor performance. This study presents a proof of concept for retrofit applications, discussing the converter design methodology and prototype evaluation. Additionally, a cost analysis comparing single-phase and three-phase motors is included. It aims to demonstrate the long-term cost savings and improved energy efficiency of the proposed converter. The findings highlight the converter’s potential as a promising solution for enhancing energy efficiency and decreasing costs in single-phase motor applications.

Design of a Switching Strategy for Output Voltage Tracking Control in a DC-DC Buck Power Converter

“…This type of circuit is mainly used to improve efficiency in applications where voltage control is realized accurately, avoiding unwanted effects that occur with pulse width modulation (PWM) controllers. PWM control generates an undesirable dynamic effect on its output, generally as a result of a noisy output signal, as well as current spikes, elements that are not favorable for either the power supply or the circuit load such as another circuit or an application [2][3][4][5][6][7][8]. In the particular case of the Buck-type converter, there are two elements that can store energy, a coil and a capacitor, which reduces the amplitude of the effects generated by the commutation of the switches of the circuit, on the output signal [2].…”