Micro-grid can operate in island mode and pattern mode. It has a considerable promising application in the remote areas. In order to improve the power quality and the reliability of the power management, it is necessary to optimize the control strategy and reduce the size. An active damping control strategy is proposed without any sensors. And the size of LC filter is reduced by adjusting the active damping coefficient. And a power management of micro-grid is proposed based on the fuzzy logic control. Both the simulation model and experimental test show that by these proposed design approach and control strategy, the micro-grid can provide energy with high quality.