Smoothing using the method of the photovoltaic power system battery energy storage system

The present invention discloses a battery energy storage system and the photovoltaic power generation system combined process of smoothing PV system power in the art utilizing battery energy storage system and network applications. Comprising: collecting a time t photovoltaic power generating system Pv (t); calculating a time t volatility photovoltaic power generation system; photovoltaic power generation system calculates the time t after smoothing; computing power and battery charging and discharging of the battery energy storage system at time t state of charge of the energy storage system; in accordance with the state of charge of the battery energy storage system the next time the right to adjust the moving average filter and the weight set number of cycles; t-discharge power of the battery energy storage system based on the time control battery energy storage system charging or discharging; into the next time t + Δt, repeat the above steps loop regulation. The present invention is smoothly moved with weights wi of m cycles by weight moving average algorithm adjusted in real time to achieve adaptive smoothing photovoltaic power demand, have the ability to implement adaptive energy storage system of the photovoltaic cell and coordinated control.