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ABSTRACT
This is a project on the design and construction of a 3.5KVA solar inverter. Solar inverters convert the variable direct current (DV) output of a photovoltaic (PV) solar panel into a utility frequency alternating current (AC) that can be fed into the electrical network of a home. It is a critical component in photovoltaic systems, allowing the use of ordinary AC-powered equipment. In solar inverters, solar panels produce direct electricity with the help of electrons from negative to positive direction. Most of the appliances we use at home work on alternating current. This AC is created by the constant back and forth of the elections from negative to positive. In AC power, the voltage can be changed depending on how the equipment will be used. Solar inverters are used to convert DC to AC because solar panels can only produce direct current. A 3.5KVA electrical inverter was designed for this project. The inverting circuitry assembly's architecture has two 22Ah wet cell batters, a 220V/24-0-24v centre-tapped inverter, an MPPT charge controller, and six 300Watts solar panels. An air conditioner (1120 watts), refrigerator (200 watts), Television, and other electronics amounting to 2465 watts were all powered by the design. At the total load, the system worked for roughly 12 hours at optimal performance.
