Research and implementation of home wind-hydro-solar micro-grid control strategy

Distributed energy, micro-grid and smart grid are hot topics in the field of electric system. Main research subjects are focused on grid-connected control, power flow calculation, modeling and simulation, topology and control and so on, real operation systems are very few. Based on current research results, a set of home micro-grid is designed and developed. This system consists of such units as wind, hydro ,solar power resources, battery and inverter. The micro-grid is monitored and dispatched by micro-grid energy manager and remote SCADA system. Based on system analysis, model building, simulation and operation design, three important functions are achieved, which include intelligent dispatch and power automated balance, plug and play and fault self-cure. This system has been put into operation for test in a village. The research achievements have reference values for energy management and dispatch control of smart grid.