Recent advances in photovoltaic solar cells indicate a vast new market may soon be emerging. This project deals with the photovoltaic inverter required to convert the solar array's dc electrical output into utility-compatible ac. A 10 kW, dual resonant inverter is proposed employing a novel modulation process. The inverter outputs will be phased together and demodulated to produce a low distortion 60 Hz current that can be fed directly into the utility's power grid. By operating the inverters at resonance, switching losses can be virtually eliminated producing several advantageous properties over existing technologies, namely: higher operating efficiencies, reduction in electromagnetic interference, and improvement in reliability (by means of reducing peak power dissipated in the power transistors).The potential applications as described by the company: The proposed technology can produce both ac and dc outputs and is applicable to ac motor drives, dc to dc converters, battery chargers, and numerous other power converter applications.
