Information processing device, information processing method, and information processing program

Abstract

To provide an information processing device capable of evaluating the contribution of a quasi-synchronous generator to stabilizing the frequency of a power system.SOLUTION: The information processing device includes a first output unit that outputs a first value corresponding to first power input / output from a power supply device during a first period of time after a frequency fluctuation occurs in a power system in which the power supply device simulating a synchronous generator is connected to the power supply device, a second output unit that outputs a second value corresponding to second power input / output from the power supply device to the power system before the frequency fluctuation occurs, and a calculation unit that calculates, based on the first and second values, the contribution made by the power supply device to stabilizing the frequency of the power system.SELECTED DRAWING: Figure 6

Claims

1. A first output unit outputs a first value corresponding to the first power input and output from a power supply unit that simulates a synchronous generator during a first period after a frequency fluctuation occurs in a power system to which the power supply unit is connected. A second output unit that outputs a second value corresponding to the second power input / output from the power supply to the power system before the frequency fluctuation occurs, A calculation unit that calculates the contribution of the power supply device to stabilizing the frequency of the power system based on the first and second values, An information processing device equipped with the following features.

2. An information processing apparatus according to claim 1, The second output section is, Based on the average value of the second power over the second period before the frequency fluctuation occurs, the second value is output. Information processing device.

3. An information processing apparatus according to claim 1 or 2, The first output unit outputs the first value, in which the first power is unitized in terms of the rated capacity of the power supply device. The second output unit outputs the second value, in which the second power is unitized by the rated capacity. Information processing device.

4. The information processing apparatus according to claim 3, The calculation unit, A subtraction unit that calculates the difference between the first and second values, An integration unit calculates the contribution by integrating a third value corresponding to the difference over the first period. Having, Information processing device.

5. An information processing apparatus according to claim 4, The calculation unit, The system further includes a multiplication unit that multiplies the difference by a first coefficient whose absolute value is minimized at the end of the first period, depending on the elapsed time since the frequency fluctuation occurred, and outputs the third value. Information processing device.

6. An information processing device according to claim 5, The multiplication unit is, The difference between the second coefficient, which corresponds to the sign of the frequency fluctuation, and the first coefficient is multiplied by this second coefficient and output as the third value. Information processing device.

7. An information processing apparatus according to claim 1, The system further includes a determination unit that determines whether or not the frequency fluctuation has occurred based on the fluctuation value of the frequency of the output voltage output from the power supply device relative to the rated frequency of the power system and a predetermined threshold. Information processing device.

8. Information processing device, The steps include outputting a first value corresponding to the first power input and output from a power supply device that simulates a synchronous generator during a first period after a frequency fluctuation occurs in a power system to which the power supply device is connected, The steps include outputting a second value corresponding to the second power input / output from the power supply to the power system before the frequency fluctuation occurs, A step of calculating the contribution of the power supply device to stabilizing the frequency of the power system based on the first and second values, Information processing methods including

9. On the computer, A first output unit outputs a first value corresponding to the first power input and output from a power supply unit that simulates a synchronous generator during a first period after a frequency fluctuation occurs in a power system to which the power supply unit is connected. A second output unit that outputs a second value corresponding to the second power input / output from the power supply to the power system before the frequency fluctuation occurs, A calculation unit that calculates the contribution of the power supply device to stabilizing the frequency of the power system based on the first and second values, An information processing program that makes this possible.

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