Power electronics device, control method, and non-transitory computer readable medium

Patent metadata

Field	Value
Publication number	US-10175660-B2
Application number	US-201514925027-A
Country	US
Kind code	B2
Filing date	Oct 28, 2015
Priority date	Oct 30, 2014
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

According to one embodiment, a control device in a power electronics device includes a controller, a configuration determiner and a manager. The controller performs control associated with power conversion, in accordance with a first logical configuration of control between the power electronics device and other power electronics device. The configuration determiner performs determination processing of a second logical configuration when a change condition of the first logical configuration is satisfied. The manager instructs the controller to perform the control in accordance with the second logical configuration, the manager performing management such that the controller performs the control in accordance with previously given control information for a period after the change condition of the first logical configuration is satisfied and until the manager instructs the controller to perform the control associated with the power conversion in accordance with the second logical configuration.

First claim

The invention claimed is:

1. A control device arranged in a power electronics device, comprising:
a controller to perform control associated with power conversion in the power electronics device, in accordance with a first logical configuration of control between the power electronics device and other power electronics device;
a configuration determiner to perform determination processing of a second logical configuration of control between the power electronics device and the other power electronics device when a change condition of the first logical configuration is satisfied; and
a manager to instruct the controller to perform the control in accordance with the second logical configuration, the manager performing management such that the controller performs the control associated with the power conversion in accordance with previously given control information for a period after the change condition of the first logical configuration is satisfied and until the manager instructs the controller to perform the control in accordance with the second logical configuration.

2. The control device according to claim 1 , wherein the manager determines that the change condition of the first logical configuration is satisfied when a change of characteristic information is detected in either one of the power electronics device and the other power electronics device; when stoppage, failure or separation of one of a plurality of the other power electronics devices is detected; or when participation of a further other power electronics device different from the other power electronics device is detected.

3. The control device according to claim 2 , wherein, in response to the characteristic information of the power electronics device being changed, the configuration determiner determines the second logical configuration on basis of the changed characteristic information of the power electronics device and the characteristic information of the other power electronics device; and
in response to the characteristic information of the other power electronics device being changed, the configuration determiner determines the second logical configuration on basis of the changed characteristic information of the other power electronics device and the characteristic information of the power electronics device.

4. The control device according to claim 2 , further comprising a communicator to communicate with the other power electronics device, wherein the communicator transmits, in response to the characteristic information of the power electronics device being changed, the changed characteristic information of the power electronics device to the other power electronics device; and
the manager instructs the controller to perform the control associated with the power conversion in accordance with the second logical configuration after a response to transmission of the changed characteristic information of the power electronics device is received by the communicator.

5. The control device according to claim 2 , further comprising a communicator to communicate with the other power electronics device, wherein the manager uses the communicator to detect that the characteristic information of the other power electronics device has been changed.

6. The control device according to claim 5 , wherein the communicator receives the changed characteristic information of the other power electronics device,
manager transmit notification information via the communicator to the other power electronics device, the notification information indicating that the manager has recognized the changed characteristic information of the other power electronics device, and
the manager, after the notification information has been transmitted, instructs the controller to perform the control in accordance with the second logical configuration.

7. The control device according to claim 6 , wherein the communicator transmits the notification information to one of the other power electronics devices other than the other power electronics device whose characteristic information was changed, and
the manager instructs the controller to perform the control in accordance with the second logical configuration after notification information is received by the communicator from the one of the other power electronics devices, the notification information indicating that the changed characteristic information of the other power electronics device has been recognized.

8. The control device according to claim 5 , wherein the manager detects that the characteristic information of the other power electronics device has been changed by receiving a characteristic information update notification from the other power electronics device via the communicator, or by comparing the characteristic information received from the other power electronics device via the communicator with already-held characteristic information of the other power electronics device.

9. The control device according to claim 5 , wherein the communicator receives hash information from the other power electronics device, the hash information being based on the characteristic information of the other power electronics device; and
the manager detects that the characteristic information of the other power electronics device has been changed, in accordance with comparison of the hash information received by the communicator with hash information of already-held characteristic information of the other power electronics device.

10. The control device according to claim 5 , further comprising a storage storing the characteristic information of the power electronics device and the characteristic information of the first to N-th other power electronics devices, wherein the communicator receives hash information from the first other power electronics device, the hash information being based on the characteristic information of the power electronics device and the characteristic information of the first to N-th other power electronics devices; and
the manager detects that the first other characteristic information of the power electronics device has been changed when the hash information received by the communicator is different from hash information computed on basis of the characteristic information of the power electronics device and the characteristic information of the first to N-th other power electronics devices in the storage.

11. The control device according to claim 10 , wherein the communicator receives the changed characteristic information of the first other power electronics device, and transmits hash information to the second to N-th other power electronics devices, the hash information being computed on basis of: the changed characteristic information of the first other power electronics device; the characteristic information of the power electronics device in the storage; and the characteristic information of the second to N-th other power electronics devices in the storage.

12. The control device according to claim 11 , wherein the manager instructs the controller to perform the control associated with the power conversion in accordance with the second logical configuration after the hash information has been transmitted to the second to N-th other power electronics devices.

13. The control device according to claim 2 , wherein the configuration determiner, in response to stoppage, failure, or separation of one of the other power electronics devices, determines the second logical configuration of control between the power electronics device and the other power electronics devices in operation other than the power electronics device that has been stopped, failed, o

Assignees

• Toshiba Kk

Inventors

• Kanayama Fumiaki
• Doi Yusuke
• Nishibayashi Yasuyuki

Classifications

• Y02E40/70

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• H02M1/008

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• H02M1/0012

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