Adjusting power measuring apparatus, adjusting power measuring system, and measuring instrument

An adjusting power measuring apparatus comprising:

• a processor that:
• acquires an active power measurement value of active power exchanged at a connection point between a targeted power grid and an adjusting power supply source that supplies adjusting power to the targeted power grid,
• acquires a frequency measurement value of frequency at the connection point,
• calculates the adjusting power supplied from the adjusting power supply source to the targeted power grid based on a fluctuation amount of the active power measurement value and a sum of values respectively obtained by multiplying a predetermined weight coefficient with each fluctuation amount between two frequency measurement values acquired serially in time within a predetermined time period, and
• determines, based on the calculated adjusting power, compensation to be paid to an owner of the adjusting power supply source.

A measurement instrument installed at a connection point between a targeted power grid and an adjusting power supply source that supplies adjusting power to the targeted power grid, the measurement instrument comprising:

• a sensor that measures active power exchanged at the connection point and frequency at the connection point,
• a processor that:
• acquires an active power measurement value and a frequency measurement value via the sensor;
• calculates, based on the active power measurement value and the frequency measurement value, a first adjusting power coefficient indicating a degree of influence that fluctuation in the active power has on fluctuation in the frequency,
• calculates, based on the first adjusting power coefficient and a fluctuation measurement value of the fluctuation in the frequency, the adjusting power supplied from the adjusting power supply source to the targeted power grid, and
• determines, based on the calculated adjusting power, compensation to be paid to an owner of the adjusting power supply source.