Mohammad Ali Tavakkoli - Department of electrical engineering K. N. Toosi University of Technology
Ahmad Radan - Department of electrical engineering K. N. Toosi University of Technology
Houshang Hassibi - Department of electrical engineering K. N. Toosi University of Technology

Complex circuitry of electronic infrastructure of compact smart micro grids with multiplerenewable energy sources feeding the loads using parallel operation of inverters acts as a deterrent indeveloping such systems. Parallel Inverters is one of the best methods to provide great load power. One wayof briefing electronic infrastructure of micro grids, use parallel driver circuit focusing on bootstraptechniques. But so far research has been done in this area that if fault occurs in the switches what happensand will provide the reliability of the driver circuit? In this paper, first the parallel inverter and its drivercircuit are studied and in the next section, their behavior will be analyzed when the switch is erroneous.Digital Simulation in Matlab Simulink is used to show the proposed solutions to this type of behavior and toavoid errors leading to other parts of the system.

bootstrap technique; drive circuitry; micro grid; parallel inverter; switch fault detection