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Tap plan value calculation method, tap command value determination method using the same, control target value calculation method, tap plan value calculation device, tap command value determination device, tap plan value calculation program
Tap plan value calculation method, tap command value determination method using the same, control target value calculation method, tap plan value calculation device, tap command value determination device, tap plan value calculation program
PROBLEM TO BE SOLVED: To prolong the apparatus life by suppressing the number of tap switching times of a transformer with a tap, while maintaining the voltage of a power distribution system in a proper range.SOLUTION: A tap planned value calculation method calculating a time series tap planned values for reducing the number of tap switching times of transformers with taps 20-22 in a power distribution system 70 connected with loads 50-57 and distributed power supplies 60-64 over a predetermined period includes a step for calculating selectable taps capable of adjusting the voltage for each time in the predetermined period, based on the voltage data at respective nodes 11-14 of the distributed power supplies in the predetermined period, and a step for calculating a tap value for minimizing a cost evaluation function, as the tap planned value, by using a predetermined cost evaluation function F including an evaluation term for reducing the number of tap switching times of the transformers with taps in the predetermined period.
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