Multi-mode energy control and management for stand-alone wind-photovoltaic hybrid power system

A Stand-alone wind-photovoltaic hybrid power system allocates new energy resources reasonably and independently. But the appearance of wind energy and solar energy is unpredictable, and their loading and storage states are random. Therefore, we analyze the flow of the multi-mode energy of the stand-alone wind-photovoltaic hybrid power system. We study its mode and modal transformation and then control and manage the energy in its four typical modes. We use the closed-loop voltage control to make sure that the output voltage of a wind turbine and the photovoltaic-generated power are stable and that the power supply for electrical equipment and electricity-storage components is safe and reliable. We use the MATLAB/Simulink to simulate the control of the multi-mode energy of the stand-alone wind-photovoltaic hybrid power system. The simulation results, give in Figs.4, 5 and 6, and their analysis show preliminarily that the stand-alone wind-photovoltaic hybrid power system can work reliably, verifying that our multi-mode analysis method is effective.