One kind of photovoltaic stabilize fluctuations in the energy storage system control method

The energy storage system control method of a photovoltaic stabilize fluctuations, including determining the duration energy storage system charging, discharging duration, photovoltaic and energy storage systems combined output value, the output energy storage system. After discharging the first energy storage system, and then charged to the last three discharge process. The energy storage system charge time, discharge time length, based on the initial SOC value of the storage system, in conjunction with a polynomial curve obtained by actual typical daily PV system output data fitting, under the constraint of the maximum value and the minimum SOC value SOC of the energy storage system charging and discharging process determined by solving inequalities; photovoltaic and energy storage systems or the combined output value of the off time of the second discharge process polynomial function is worth to start timing a first discharge process by solving the energy storage system; output energy storage system, and by calculating the PV combined output difference value of the storage system and the output of the photovoltaic obtained. The method of the present invention is reasonable, simple, can meet the actual requirements of the micro-simulation and verification techniques grid for photovoltaic and energy storage device.