Reliable and Economy Modes of Operation for Electric Vehicle-to-Home (V2H) System

In developing countries load shedding for hours is very common. Generally, a small power backup source is utilized for necessary loads (emergency lights and emergency loads like fan and small cooler). Nowadays, grid-connected solar inverters that installed on the roof are widely utilized for backup power source in urban cities. Penetration of electric vehicles (EVs) are increasing, so charging of EVs battery through grid increase power grid instability. Solar PV based charging of EVs can be a solution for this problem. However, in the case of a charged battery condition, whenever battery has charged through the grid, the available power from solar PV modules remain unutilized and wasted. The proposed controllers modify the regular, low-cost home inverter into a PV grid-connected inverter that it also has the ability to utilize EV battery energy. It has better control strategy that guarantees the reliability of the power supply. Economy mode and reliable mode has been developed to improve standby power supply, it also maximizes utilization of PV energy. In addition, the customers, don't need to buy a new expensive solar grid-connected inverter or any other devices to charge the EV battery if they already have a home-based inverter.