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Design and Implementation of 1 KVA Inverter with Solar Power Integration
Abstract
This work presents the design and construction of a 12V-DC/220V-AC 1kVA inverter with solar power integration. The inverter consists of four stages: transformation, oscillator, and driver stages, along with a low battery detection circuit and indicator LEDs for monitoring. The transformation stage employs a 1,000VA transformer, the oscillator stage utilizes a square wave relaxation oscillator,
and the driver stage is controlled by a MOSFET IRFP250N. Open-circuit and load tests were conducted to evaluate the inverter's performance, and it successfully powered a 200W bulb for 4.5 hours before shutting down. The efficiency and output power were estimated, demonstrating the effectiveness of the inverter. To enhance efficiency and extend the output duration, an 85W solar panel was installed to charge the battery with a maximum voltage of 17.8V. The designed solar inverter performed well, achieving the objective of converting 12V-DC to 220V-AC power. However, further investigations are recommended to optimize performance, improve efficiency, and explore additional features such as grid connectivity and battery storage. Overall, this work showcases the successful implementation of a renewable energy solution, highlighting the potential of using inverters and solar power to advance sustainable energy technologies.
