Power-type energy storage frequency modulation responsibility dividing method based on secondary planning
A power-based energy storage, secondary planning technology, applied in the direction of reducing/preventing power oscillation, AC network load balancing, etc., can solve the problems of ignoring state changes, unable to meet the real-time change of charge state, unable to guarantee the battery's rechargeable and discharge capacity, etc. , to reduce mechanical wear, improve resistance to load disturbance, reduce the need for frequent climbing
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[0032] Such as figure 1 As shown, a method for dividing responsibility for frequency regulation of power-type energy storage based on quadratic programming includes the following steps:
[0033] Step 1: Obtain the basic information of each device participating in the secondary frequency modulation, including:
[0034] 1) The maximum power offset P of the FM power supply min ,P max .
[0035] 2) The maximum limit R of the ramp rate of the FM power supply min , R max . The ramp rate is the rate of change R of the power offset value between two sampling times before and after.
[0036] 3) The power reference value P of the FM power supply b
[0037] 4) Charge and discharge efficiency η of energy storage c , η d .
[0038] 5) The best state of charge S for energy storage v State and allowable power limit S min , S max .
[0039] 6) The initial power S of the energy storage 0 .
[0040] Among them, the device types are divided into two categories, traditional gener...
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