You have no items in your shopping cart.
ABSTRACT
This project presents the design and implementation of a microcontroller-based high voltage and surge protection system for solar inverter applications. Solar inverters, which convert direct current (DC) from solar panels into alternating current (AC) for household or grid use, are vulnerable to voltage surges and spikes, which can damage electronic components and reduce system efficiency. This project addresses this issue by developing a robust protection mechanism utilizing a microcontroller to monitor and control voltage levels. The proposed system comprises sensors to detect abnormal voltage conditions, an ATMEGA328P microcontroller to process the sensor data, and protective relays to isolate and protect the inverter during high voltage or surge events. The microcontroller was programmed to continuously monitor the voltage levels and activate the protective measures such as the Varistor, the Transient Voltage Suppressor Diode (TVSD) and Circuit breaker, when predefined thresholds are exceeded. Additionally, the system includes a user interface to display real-time voltage status and system alerts. The effectiveness of the proposed solution was validated through a series of tests such as Communication Protocol Test, Response Time Test and Recovery Time Test, under simulated surge conditions. The results demonstrated the excellent capability of the designed system to protect solar inverters from voltage-induced damages. This work contributes to the field of renewable energy systems by providing a cost-effective and efficient solution for voltage surge protection in solar power installations.
