IP Library › Granted Patent US 10,566,796
Granted Patent B2
US 10,566,796 · App. 15/325,407 · Granted Feb 18, 2020

Control method of power generation system, power generation system, and power generation apparatus

Inventors: Masaya Kojima (Kawasaki, JP); Hitoshi Inoue (Yokohama, JP)
Assignee: KYOCERA Corporation
H02J3/383H02J3/387H02M3/04H02M7/44H02S40/32H02J1/10Y02E10/563
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Quick Facts
Patent No.
US 10,566,796
App. No.
15/325,407
Granted
Feb 18, 2020
Kind
B2
Abstract

A control method of the power generation system of the disclosure is a control method of a power generation system configured with a power generation apparatus and at least one other power generation apparatus coupled to the power generation apparatus herein, the power generation system configured to interconnect with a grid and supply power to a load, wherein a process performed by the power generation apparatus includes a step of obtaining a current value between the power generation system and the grid, a step of determining, based on the current value, respective target power to be generated by the power generation apparatuses, and the other power generation apparatuses, and a step of notifying the other power generation apparatuses of the respective target power.

Claims (36)

1. A control method of a power generation system configured with a power generation apparatus and at least one other power generation apparatus coupled to the power generation apparatus, the power generation system configured to interconnect with a grid and supply power to a load, wherein

the control method performed by the power generation apparatus includes steps of:

obtaining a current value between the power generation system and the grid,

determining, based on the current value obtained, target power to be generated by the power generation apparatus and the other power generation apparatus, and

notifying the other power generation apparatus of the target power.

2. The control method of the power generation system according to claim 1 , further comprising a step of performing communication when the current value indicates a current in a direction of a reverse power flow, so as to stop an output of at least one of the power generation apparatus and the other power generation apparatus.

3. The control method of the power generation system according to claim 1 , further comprising a step of performing communication, in response to a reduction in power consumption of the load, so as to stop an output of at least one of the power generation apparatus and the other power generation apparatus.

4. A control method of a power generation system configured with a power generation apparatus and at least one other power generation apparatus coupled to the power generation apparatus, the power generation system configured to interconnect with a grid and supply power to a load, wherein the control method includes:

a step of obtaining a sensor signal from a current sensor configured to detect a current flowing between the grid and the power generation system by the power generation apparatus,

an output step of outputting the obtained sensor signal to the other power generation apparatus by the power generation apparatus,

a first control step of, based on the sensor signal, controlling to reduce an output of power generated by the power generation apparatus, and

a second control step of, based on the sensor signal output from the power generation apparatus, controlling to reduce an output of power generated by the other power generation apparatus.

5. The control method of the power generation system according to claim 4 , wherein the output step further includes a matching output step of matching impedance of the sensor signal before outputting the sensor signal to the other power generation apparatus.

6. A power generation system comprising:

a power generation apparatus; and

at least one other power generation apparatus coupled to the power generation apparatus, the power generation system configured to interconnect with a grid and supply power to a load, wherein

the power generation apparatus includes a controller that determines, based on a current detected by a current sensor between the power generation system and the grid, target power to be generated by the power generation apparatus and the other power generation apparatus and notifies the other power generation apparatus of the target power.

7. The power generation system according to claim 6 , comprising a communicator configured to allow communication between the power generation apparatus and the other power generation apparatus, wherein

the controller of the power generation apparatus, when the current detected by the current sensor flows in a direction of a reverse power flow, controls to stop at least one of an output of the power generation apparatus and an output of the other power generation apparatus via the communicator.

8. The power generation system according to claim 6 , comprising a communicator configured to allow communication between the power generation apparatus and the other power generation apparatus, wherein

the controller of the power generation apparatus, in response to a reduction in power consumption of the load, controls to stop at least one of output of the other power generation apparatus via the communicator.

9. A power generation system comprising:

a power generation apparatus; and

at least one other power generation apparatus coupled to the power generation apparatus, the power generation system configured to interconnect with a grid and supply power to a load,

wherein the power generation apparatus is configured to obtain a sensor signal from a current sensor configured to detect a current flowing between the grid and the power generation system and output the obtained sensor signal to the other power generation apparatus via a communicator, and includes a first controller configured to control, based on the sensor signal, to reduce an output of power generated by the power generation apparatus, and

the other power generation apparatus includes a second controller configured to control, based on the sensor signal output from the power generation apparatus, to reduce an output of power generated by the other power generation apparatus.

10. The power generation system according to claim 9 , wherein the first controller of the power generation apparatus matches impedance of the sensor signal before outputting the sensor signal to the other power generation apparatus.

11. A power generation apparatus coupled to at least one other power generation apparatus, the power generation apparatus comprising a controller configured to interconnect with a grid and supply power to a load, wherein

the controller of the power generation apparatus determines, based on a current detected by a current sensor between the power generation apparatus and the other power generation apparatus, and the grid, target power to be generated by the power generation apparatus and the other power generation apparatus and notifies the other power generation apparatus of the target power via a communicator.

12. A power generation apparatus coupled to at least one other power generation apparatus, the power generation apparatus configured to interconnect with a grid and supply power to a load, including

a power generator configured to interconnect with the grid and generate power supplied to the load, and

a controller configured to control an output of power generated by the power generator,

wherein the controller is configured to receive a sensor signal from a current sensor configured to detect the current flowing between the grid, and the power generation apparatus and the other power generation apparatus, and is configured to output the sensor signal

to the other power generation apparatus, and

wherein the controller, based on the sensor signal controls to reduce the output of the power generated by the power generator.

13. The power generation apparatus according to claim 12 , wherein the controller matches impedance of the sensor signal before outputting the sensor signal to the other power generation apparatus.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2017
From: KOJIMA, MASAYA; INOUE, HITOSHI
To: KYOCERA CORPORATION
Reel/Frame 040938/0756 →
Priority Claims (2)
JP 2014-142751 · Jul 10, 2014 · national
JP 2014-142752 · Jul 10, 2014 · national
Continuity (1)
Related Publication 20170187191A1 · Jun 29, 2017