Abstract
We propose a new multi-functional single phase PWM inverter for solar power generation system. In this case, it is important to construct the main circuit with simple circuit configuration and control. The proposed single phase inverter with an AC line switch can be constructed only by a three phase inverter module. The functions of the inverter are as follows; 1) an inverter to send the solar cell energy to the utility line, 2) a power line conditioner with an active filter and a reactive power compensator and line voltage controller at the line connecting mode. and 3) an uninterrupted power supply at the line power failer and so on. These are desirable from view points of improving the cost performances of the system.
In this paper, the proposed control circuit and the principle of operation, the control functions and their control characteristics are described. Then some simulation results of the system with many functions are shown. The feasibility of the inverter system are verified by experimental results.
