Analysis to optimization strategy of critical energy storage configuration in different scenarios with abandonment rate of photovoltaic power

Configuration of energy storage equipment is an effective way to reduce the photovoltaic (PV) power waste However, the cost of energy storage equipment is high, and it will bring great economic significance to optimize the energy storage configuration, reduce the abandonment rate of PV power and meet the power consumption needs. Taken the cost of energy storage configuration and the electricity price in different range into consideration, this paper transforms the design issue of minimum energy storage configuration to a mathematical issue of finding the extreme value within the limit range, based on the precondition that the system does not transmit the power inversely. Based on the optimal design of energy storage configuration, CPLEX and YALMIP solvers have been adopted to verify the values of configuration that is less than, equal to and greater than the critical value of configuration of the energy storage respectively. The results show that the energy storage configuration equal to or higher than the critical configuration calculated by the mathematical model can effectively ensure that the abandonment rate of PV power is zero under the premise that the system does not transmit the power inversely. The energy storage configuration lower than the critical configuration will lead to PV power abandonment, demonstrating the correctness of the proposed calculation method.