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A digital centralized measurement and control device and a hot standby switching method

A measurement and control device and a centralized technology, applied in the field of substations, can solve problems such as the mismatch between benefit acquisition and cost input, lack of redundancy, and high construction costs, and achieve the effects of eliminating defects, improving redundancy, and reducing floor space

Inactive Publication Date: 2019-01-18
NR ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In a typical design of a substation, the measurement and control devices are generally configured in a single set at intervals, lacking redundancy; if all relay protection is configured in double sets, the construction cost is high, and the benefits obtained do not match the cost input, which is not economical.

Method used

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  • A digital centralized measurement and control device and a hot standby switching method

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0023] Such as figure 1 As shown, this embodiment provides a digital centralized measurement and control device that supports hot standby switching, including a chassis, a management plug-in, a communication plug-in, a power plug-in, and multiple CPU plug-ins.

[0024] The chassis includes a backplane, and the management plug-in, communication plug-in, and CPU plug-ins are all connected to the backplane by plugging. The backplane is also provided with one or more buses, and the plug-ins are interconnected through the buses.

[0025] The communication plug-in is provided with at least two Ethernet communication interfaces, including: a station control layer Ethernet communication interface and ...

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Abstract

The invention discloses a digital centralized measurement and control device and a hot standby switching method. The device comprises: a communication plug-in used for receiving and transmitting an Ethernet message; A plurality of CPU plug-ins used for realizing the interval measurement and control function according to the Ethernet message forwarded by the communication plug-in; A management plug-in used for real-time monitoring the running status of each CPU plug-in and realizing the hot standby switching of each CPU plug-in; A power plug-in used to supply power to each plug-in. The invention integrates a plurality of measurement and control functions into one device, realizes high integration of functions, and greatly reduces the number of devices and the occupied area of the substation. It supports on-line monitoring of the status of CPU plug-in, and can timely find out the interval measurement and control of abnormal operation, and upgrade the standby measurement and control to the operation measurement and control, thus realizing the hot standby switching of the interval measurement and control, and improving the redundancy ability of the secondary system of the substation; The device supports CPU plug-in hot plug-in, online replacement of new plug-in to eliminate defects.

Description

technical field [0001] The invention relates to a digital centralized measurement and control device and a hot standby switching method, belonging to the technical field of substations. Background technique [0002] With the introduction and promotion of the IEC 61850 standard, digital substations have been rapidly developed and applied in large-scale engineering, and the system structure of the entire substation has become clearer. The merging unit and intelligent terminal collect and process the electrical primary voltage, current, circuit breaker, and knife switch position, so that the analog and switching values ​​of electrical secondary equipment are all digitized and transmitted via Ethernet, making information sharing of the entire substation a reality. On the basis of data sharing, the independent and scattered protection, measurement and control secondary equipment is integrated in a centralized manner, and through multi-functional integration and integrated configu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00G06F13/40G06F11/20
CPCG06F11/2033G06F13/4081H02J13/00001H02J13/0062Y02B90/20Y04S40/124
Inventor 周强陈桂友李响文继锋熊慕文顾浩
Owner NR ELECTRIC CO LTD
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