ENERGY MANAGEMENT METHOD FOR VARIOUS TYPES OF BATTERY ENERGY STORAGE POWER STATIONS TAKING INTO ACCOUNT CHARGE-DISCHARGE RATE

摘要

An energy management method for various types of battery energy storage power stations taking into account a charge-discharge rate, comprising: reading related data of a battery energy storage power station in real time; calculating a characteristic value of the charge or discharge rate of each battery energy storage unit; calculating an initial power command value of each battery energy storage unit; judging in real time whether the initial power command value of each battery energy storage unit goes beyond the permitted maximum charge or discharge power of the unit or not; if yes, conducting online correction and recalculation on the initial power command value of each battery energy storage unit; otherwise, setting the initial command value of the energy storage unit as a power command value thereof; and summarizing the power command value of each battery energy storage unit and outputting same. The method has an object of reasonably controlling the charge-discharge rate of each energy storage unit, and performs power coordination control and energy management inside the energy storage power station, and also takes into account the service life of an energy storage battery in a control policy, so as to fulfill the functions of avoiding the abusing of the energy storage battery, decelerating the battery ageing, etc. as far as possible.