Control apparatus, control method, and non-transitory computer readable medium

Patent metadata

Field	Value
Publication number	US-11537158-B2
Application number	US-202016944545-A
Country	US
Kind code	B2
Filing date	Jul 31, 2020
Priority date	Sep 3, 2019
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

A control apparatus 20 that is configured to control driving of a power generation apparatus including a motor and a power generator, the control apparatus including a processor 200 executing: a process of calculating a first adjustment force command value used for controlling the motor in accordance with a deviation between an observed value and a reference value of a rotation speed of the power generator; a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a second adjustment force command value used for controlling the motor by adding the first adjustment force command value and the correction value.

First claim

What is claimed is:

1. A control apparatus that is configured to control driving of a power generation apparatus including a motor and a power generator, the control apparatus comprising a processor executing:
a process of calculating a first adjustment force command value used for controlling the motor in accordance with a deviation between an observed value and a reference value of a rotation speed of the power generator;
a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and
a process of calculating a second adjustment force command value used for controlling the motor by adding the first adjustment force command value and the correction value.

2. The control apparatus according to claim 1 , wherein the processor is configured to calculate a differential signal acquired by differentiating an observed value of the electric output of the power generator as the correction value in the process of calculating the correction value.

3. The control apparatus according to claim 2 , wherein the processor is configured to further execute a process of estimating a response delay time of the power generator on the basis of the observed value of the rotation speed and the observed value of the electric output and is configured to correct the differential signal on the basis of the response delay time in the process of calculating the correction value.

4. The control apparatus according to claim 1 , wherein the processor is configured to further execute a process of estimating a response delay time of the power generator on the basis of the observed value of the rotation speed and an observed value of the electric output and is configured to calculate the correction value on the basis of the observed value of the rotation speed and the response delay time in the process of calculating the correction value.

5. The control apparatus according to claim 1 , wherein the processor is configured to further execute a process of predicting a response of the electric output of the power generator on the basis of the observed value of the rotation speed and is configured to calculate the correction value on the basis of a deviation between an observed value of the electric output and the predicted response in the process of calculating the correction value.

6. The control apparatus according to claim 5 , wherein the processor is configured to further execute a process of outputting the calculated correction value to an automatic voltage regulator that is configured to adjust an output voltage of the power generator.

7. A control method for controlling driving of a power generation apparatus including a motor and a power generator, the control method comprising:
calculating a first adjustment force command value used for controlling the motor in accordance with a deviation between an observed value and a reference value of a rotation speed of the power generator;
calculating a correction value for compensating for a delay of an electric output of the power generator; and
calculating a second adjustment force command value used for controlling the motor by adding the first adjustment force command value and the correction value.

8. A non-transitory computer readable medium storing a program that enables a computer of a control apparatus controlling driving of a power generation apparatus including a motor and a power generator to function, the program causing the computer to execute:
a process of calculating a first adjustment force command value used for controlling the motor in accordance with a deviation between an observed value and a reference value of a rotation speed of the power generator;
a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and
a process of calculating a second adjustment force command value used for controlling the motor by adding the first adjustment force command value and the correction value.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Hiroe Takaharu
• Ide Kazunari
• Sase Ryo

Classifications

• H02J3/381 Primary

  Dispersed generators · CPC title

• G05F1/66 Primary

  Regulating electric power · CPC title

• Y02E10/56

  Power conversion systems, e.g. maximum power point trackers · CPC title

• G05F1/247

  with motor in control circuit · CPC title

• H02J3/002 Primary

  Flicker reduction, e.g. compensation of flicker introduced by non-linear load · CPC title