Power source, adjusting power instructing apparatus, method, and recording medium for changing adjusting power

A power source comprising:

• a generator;
• a turbine device that drives and rotates the generator;
• and
• a control device that:
• monitors a rotation speed of the generator;
• calculates a first adjusting power instruction value by multiplying, by a first proportional constant containing a predefined first droop, a deviation between a reference value and an observed value of the rotation speed of the generator;
• determines a second droop of the generator based on a weight coefficient corresponding to a response delay of the generator;
• calculates a third adjusting power instruction value indicating a degree of increase of the adjusting power by multiplying the deviation by a second proportional constant containing the second droop;
• amplifies the adjusting power based on the third adjusting power instruction value;
• and
• outputs the amplified adjusting power to the turbine device to adjust power supply from the generator and reduces fluctuation of frequency in a power transmission and distribution system.

An adjusting power instructing apparatus comprising:

• a communication interface;
• and
• a processor that:
• transmits, to a control device for a generator connected to a targeted power grid, via the communication interface, an instruction to increase a proportional constant of an adjusting power that the control device outputs depending on a deviation between a reference value and an observed value of a rotation speed of the generator;
• acquires an active power measurement value of active power exchanged at a connection point between the targeted power grid and another power grid, and a frequency measurement value of frequency at the connection point;
• calculates an adjusting power coefficient indicating a degree of influence that fluctuation in the active power has on fluctuation in the frequency, based on the active power measurement value and the frequency measurement value;
• and
• transmits, to the control device via the communication interface, an instruction indicating a degree of increase of the proportional constant depending on a deviation between the adjusting power coefficient and a target value of the adjusting power coefficient.