Investigation of a Family of Power Conditioners Integrated into the Utility Grid. Category 2. Intermediate Power Conditioner. Final Report

摘要

A family of power conditioners in the 30 to 200 kW range is investigated. The objectives are to conceptually design and specify the power conditioners, to provide increased efficiency, reliability, and maintainability over state-of-the-art systems with a view toward low cost, and to provide safe designs. The interface of the inverter and the solar array, as well as the ac utility, is investigated including the effect of array input current, utility impedance, and effects of injected harmonic currents. A trade-off study of alternate power conversion schemes which results in a recommended approach is presented. A conceptual design of the recommended approach, including performance results obtained from an inverter simulation is presented. (ERA citation 07:014039)