Power distribution panel switch gear and a monitoring and control system having a distribution panel switch gear

• US 20040162643A1
• Filed: 02/13/2004
• Published: 08/19/2004
• Est. Priority Date: 06/06/2002
• Status: Active Grant

• Current Assignee: Akio Ito, Katsuhito Shimizu, Masashi Sugihara, Masayuki Fukai, Satoshi Kusaka, Shigeaki Namba, Toru Kimura
• Original Assignee: Akio Ito, Katsuhito Shimizu, Masashi Sugihara, Masayuki Fukai, Satoshi Kusaka, Shigeaki Namba, Toru Kimura
• Inventors: Ito, Akio, Kimura, Toru, Shimizu, Katsuhito, Fukai, Masayuki, Namba, Shigeaki, Kusaka, Satoshi, Sugihara, Masashi
• Granted Patent: US 6,947,813 B2
• Time in Patent Office: Days
• US Class Current: 700/292
• CPC Class Codes: H02J 13/00001 characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
• CPC Class Codes: H02J 13/00026 involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 10/40 Display of information, e.g. of data or controls
• CPC Class Codes: Y04S 40/126 using wireless data transmission

Abstract

(Subject) Reduction in the size of the apparatus, the minimization of cable laying, and the rationalization of maintenance and diagnosis.

(Means for Solving the Problems) The communication module 26 of the controller 20 for output of commands relating to the operation and monitoring of the devices to be operated, and the communication modules 38 of the switch gears 34 for creating information relating to the protection and interlocking of the devices to be operated are connected via wireless communication 32, and each switch gear 34 is interconnected via wireless communication 32. And under the control of the CPU 36, the start of the to-be-protected devices connected to the power circuit 46 is commanded and the protection and interlocking of the devices to be operated are executed. Also, configuration that enables diagnosis via external wireless communication is adopted.

Claims

1. A power distribution panel switch gear comprising;

a plurality of control means provided in a power distribution panel so as to correspond respectively to a plurality of devices to be operated, and intended to control, in accordance with control commands, the driving of each said device to be operated;

a plurality of status input means for receiving the signals corresponding to the status of said plurality of devices to be operated;

an operation monitoring information creating means by which, in accordance with the inputs from each said status input means, monitoring information that includes information on at least either the protection or interlocking of each said device to be operated is created;

a control command output means for sending control commands to a specified control means in accordance with the monitoring information created by said operation monitoring information creating means, and;

a wireless communication means for exchanging information with other apparatuses.

2. The power distribution panel switch gear according to claim 1, wherein said operation monitoring information creating means and said control command output means are multiplexed.

8. The power distribution panel switch gear according to claim 1, wherein an evanescent mode is applied to said wireless communication.

3. A monitoring and control system comprising;

an operating and monitoring command output means for sending commands relating to the operation and monitoring of a plurality of devices to be operated,

a plurality of control means provided in a power distribution panel so as to correspond respectively to said plurality of devices to be operated, and intended to control, in accordance with control commands, the driving of each said device to be operated,

a plurality of status input means for receiving the signals corresponding to the status of said plurality of devices to be operated,

an operation monitoring information creating means by which information is exchanged with said operating and monitoring command output means and, in accordance with the thus-received information and the inputs from each said status input means, monitoring information which includes information on at least either the protection or interlocking of each said device to be operated is created, and

a control command output means for sending control commands to a specified control means in accordance with the monitoring information created by said operation monitoring information creating means,

wherein said operating and monitoring command output means and said operation monitoring information creating means are connected by using wireless communication as a communication means for information exchange between both means.

5. The monitoring and control system according to claim 3 or 4, wherein, among all the elements required for the execution of information exchange between an operating and monitoring command output means and an operation monitoring information creating means, only a serial transmission system is multiplexed by applying wireless communication to at least one transmission line within said serial transmission system.

6. The monitoring and control system according to claim 3, 4, or 5, having a maintenance information input means by which, instead of commands from an operating and monitoring command output means, information relating to maintenance is input to an operation monitoring information creating means.

7. The monitoring and control system according to claim 3, 4, 5, or 6, having an operating and monitoring information input means by which, instead of commands from an operating and monitoring command output means, information relating to the operation and monitoring of each device to be operated is input to an operation monitoring information creating means.

9. The monitoring and control system according to either claim 3, 4, 6, or 7, wherein an evanescent mode is applied to said wireless communication.

4. A monitoring and control system comprising;

an operating and monitoring command output means for sending commands relating to the operation and monitoring of a plurality of devices to be operated;

a plurality of control means provided in a power distribution panel so as to correspond respectively to said plurality of devices to be operated, and intended to control, in accordance with control commands, the driving of each said device to be operated;

a plurality of status input means for receiving the signals corresponding to the status of said plurality of devices to be operated;

an operation monitoring information creating means by which information is exchanged with said operating and monitoring command output means and, in accordance with the thus-received information and the inputs from each said status input means, monitoring information which includes information on at least either the protection or interlocking of each said device to be operated is created;

a control command output means for sending control commands to a specified control means in accordance with the monitoring information created by said operation monitoring information creating means;

a plurality of auxiliary status input means for receiving the signals corresponding to the status of said plurality of devices to be operated, and

an auxiliary operating and monitoring command output means by which commands relating to the operation and monitoring of said plurality of devices to be operated are output in accordance with the inputs from each auxiliary status input means;

wherein said operating and monitoring command output means and said operation monitoring information creating means are connected using a serial transmission system and connection is also established by using wireless communication as a communication means for information exchange between said operating and monitoring command output means and said operation monitoring information creating means.

10. A monitoring and control system comprising;

an operating and monitoring command output means for sending commands relating to the operation and monitoring of a plurality of devices to be operated;

a plurality of control means provided in a power distribution panel so as to correspond respectively to said plurality of devices to be operated, and intended to control, in accordance with control commands, the driving of each said device to be operated;

a plurality of status input means for receiving the signals corresponding to the status of said plurality of devices to be operated, and

a control command output means for sending control commands to a specified control means in accordance with the commands output from said operating and monitoring command output means;

wherein said operating and monitoring command output means and said control command output means are connected by using an evanescent mode as a communication means for information exchange between both means.

11. A monitoring and control system comprising;

an operating and monitoring command output means for sending commands relating to the operation and monitoring of a plurality of devices to be operated;

a plurality of control means provided in a power distribution panel so as to correspond respectively to said plurality of devices to be operated, and intended to control, in accordance with control commands, the driving of each said device to be operated;

a plurality of status input means for receiving the signals corresponding to the status of said plurality of devices to be operated;

a control command output means for sending control commands to a specified control means in accordance with the commands output from said operating and monitoring command output means, and

an operating and monitoring information input means from which information relating to the operation and monitoring of each said device to be operated is input to said operating and monitoring command output means;

wherein said operating and monitoring command output means, said operating and monitoring information input means, and said control command output means are connected by using an evanescent mode as a communication means for information exchange between the three means.

12. An equipment diagnostic system comprising;

a power distribution panel switch gear;

a controller from which commands relating to the operation and monitoring of said plurality of device to be operated are output to said power distribution panel switch gear and the output commands are used to communicate with said power distribution panel switch gear through wireless communication;

a receiver for receiving wireless waves present in a portion of the in-panel space of said power distribution panel switch gear, or at the boundary section between the power distribution panel switch gear and the external space thereof, or in the vicinity of the power distribution panel switch gear, and

a diagnostic judgment device for diagnosing whether the control and monitoring signals of the wireless waves which have been received by said receiver are within an operating range acknowledged to be normal operating range.

13. The equipment diagnostic system according to claim 12, wherein said diagnostic judgment device detects pr cursory indications of abnormality or deterioration by analyzing the operation and monitoring signals existing under the normal operating conditions of said power distribution panel switch gear and judging whether the response relationship between signals and the amounts of change thereof with the elapse of time have deviated from a normal range.

14. The equipment diagnostic system according to claim 12, wherein said diagnostic judgment device has a transmitter which can transmit test-use wireless signals in a single frequency band in addition to the wireless wave signals used in the in-panel space of said power distribution panel switch gear under the normal operating conditions thereof.

15. The equipment diagnostic system according to claim 12, wherein said diagnostic judgment device has a transmitter which can transmit test-use wireless signals in a non-single frequency band in addition to the wireless wave signals used in the in-panel space of said power distribution panel switch gear under the normal operating conditions thereof.

16. The equipment diagnostic system according to claim 12, wherein said diagnostic judgment device is such that when said power distribution panel switch gear is a metal-enclosed power distribution panel, the metallic plate in any section of the power distribution panel is made of a material which enables the penetration of in-panel wireless waves.

17. The equipment diagnostic system according to claim 12, wherein, after information has been acquired from said power distribution panel switch gear, said diagnostic judgment device stores the information into a database and outputs the information to a plant operation undertaker according to the value-judging market price indicating the degree of usefulness of the corresponding information.