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ABSTRACT
The aim of this study is to create an affordable and effective 1.5KVA 12V inverter capable of converting DC power from a lithium-ion battery bank into AC power. With the escalating cost of fossil fuels and the associated environmental and health hazards, renewable energy sources are becoming increasingly popular. To accomplish this task, a microcontroller-based approach was employed to construct the inverter. The DSPIC30F2010 microcontroller, which has advanced inverting control, was utilized to generate sine pulse width modulated (SPWM) pulses with the help of an embedded C compiler, specifically mikroC pro. A toroidal transformer was used to implement the step-up/step-down phase of the inverter, and efficient lithium-ion cells packed in multiples (series-parallel) were utilized to create an efficient battery bank. The remote-control functionality of the project was realized using an HC-05 Bluetooth module, implemented with an Arduino microcontroller ATmega328p coupled with a voltage divider to measure the battery voltage, which is displayed on a mobile phone connected to the Bluetooth. After selecting the best components, tests were conducted on the inverter, and the results were satisfactory. This project is ideal for powering low-power electrical devices such as chargers, televisions, and desktop computers. Due to its affordability, silence, and easy maintenance, it is a preferable substitute for both generators and uninterruptible power supplies (UPS).
