CN211504456U

CN211504456U - IEC 61850-based transformer substation switch cabinet temperature measurement terminal

Info

Publication number: CN211504456U
Application number: CN201922454964.4U
Authority: CN
Inventors: 蒋世挺
Original assignee: Zhejiang Huayun Information Technology Co Ltd
Current assignee: Zhejiang Huayun Information Technology Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-15
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a cubical switchboard temperature measurement terminal based on IEC61850 transformer substation relates to the temperature measuring device field. With the gradual adoption of the IEC61850 communication technology in the communication mode in the transformer substation, the communication mode of the existing temperature measurement terminal cannot meet the new standardization requirements. The utility model discloses a main CPU module 1, power module 2, network module 3, wireless collection module 4, human-computer interface module 5 and memory module 6 based on IEC61850 communication standard, main CPU module 1 passes through data bus and is connected with network module 3, wireless collection module 4, human-computer interface module 5 and memory module 6, and power module 2 passes through the power connecting wire and links to each other with each module. The temperature measurement terminal based on the IEC61850 communication standard can be effectively realized, information transmission with the IEC 61850-based power network is conveniently realized, the standardization trend of power network communication is met, and information transmission is more stable and reliable.

Description

IEC 61850-based transformer substation switch cabinet temperature measurement terminal

Technical Field

The utility model relates to a temperature measuring device field especially relates to a cubical switchboard temperature measurement terminal based on IEC61850 transformer substation.

Background

At present, with the increasing electricity consumption of society, the electric loads of high-voltage electrical equipment such as transformers, transformers and high-voltage switch cabinets bearing large-load transmission tasks are rapidly increasing. The transformer substation switch cabinet is one of the weakest links of power transmission, and it causes the too big condition of burning that generates heat of contact resistance because of spare part ageing, dust pollution scheduling problem in long-term operation occasionally, nevertheless regularly patrols through the fortune inspection personnel and surveys, and the cycle is longer, and the probability of missed measure is big. Therefore, the temperature in the switch cabinet of the transformer substation is monitored and checked in real time through the advanced switch cabinet temperature measuring sensor, and the maintenance and the use personnel are helped to know the temperature in the switch cabinet in time, which is very necessary. The condition that the equipment generates heat and burns can be avoided to a certain extent to realize the online temperature measurement of the switch cabinet of the transformer substation, unnecessary waste is avoided, the labor productivity and the power supply reliability are greatly improved, and a reasonable maintenance plan can be formulated by an electric power department, so that a large amount of maintenance cost is saved.

The temperature measuring system of the transformer substation switch cabinet consists of a front-end temperature measuring sensor and a temperature measuring terminal, wherein the temperature measuring sensor is responsible for sensing an actual temperature value in the switch cabinet, converting the temperature value into a digital signal and sending the digital signal to the temperature measuring terminal in a small wireless transmission mode, and the temperature measuring terminal transmits the data to a temperature online detection system main station through serial ports or Ethernet communication.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that solves and the technical task that provides are perfect and improve prior art scheme, provide and are based on IEC61850 cubical switchboard temperature measurement terminal of transformer substation to realize that temperature measurement terminal is based on IEC61850 power network's information transfer as the purpose. Therefore, the utility model adopts the following technical scheme.

The IEC 61850-based transformer substation switch cabinet temperature measurement terminal comprises a main CPU module, a power supply module, a network module, a wireless acquisition module, a man-machine interface module and a memory module based on the IEC61850 communication standard, wherein the main CPU module is connected with the network module, the wireless acquisition module, the man-machine interface module and the memory module through data buses, and the power supply module is connected with the modules through power supply connecting wires. The temperature measurement terminal based on the IEC61850 communication standard can be effectively realized, information transmission can be conveniently realized with the IEC 61850-based power network, the standardization trend of power network communication is met, information transmission is more stable and reliable, and the high-level application requirement of the transformer substation switch cabinet temperature online monitoring system on data is met.

As a preferable technical means: the wireless acquisition module is connected and communicated with an external temperature sensor by adopting 433MHZ wireless communication frequency, and the wireless acquisition module is communicated with the main CPU module by adopting RS-485. The 433MHZ wireless communication frequency is low in cost, and stability can be guaranteed for transmission of small data volume. RS-485 can effectively realize the networking on the system bus, and the information transmission speed is fast, and the interference killing feature is strong, and the technology is generally applied, and the cost is relatively low.

As a preferable technical means: the network module adopts a switch chip to expand a multi-path network port, and the network module is connected with the main CPU module by adopting an MII. Independent connection with different objects can be effectively realized.

As a preferable technical means: the human-computer interface module consists of a 3.5-inch color LCD and an 8-key keyboard, and is connected with the main CPU module by adopting an LVDS signal interface and a USB2.0 data bus. Low cost and mature technology.

As a preferable technical means: the power module adopts AC and DC double-path power supply, and is adaptive to 110V-220V. The power supply can be selected effectively according to the characteristics of the power supply.

As a preferable technical means: the memory module adopts an industrial SD card and 8G memory space. Large storage capacity, long service life, high stability and reliability.

As a preferable technical means: the main CPU module adopts an ARM chip architecture. The ARM chip architecture is widely applied to the industrial field, high in universality and low in energy consumption, supports a linux system, is convenient to support an open source technology, and reduces development cost.

Has the advantages that: the temperature measurement terminal based on the IEC61850 communication standard can be effectively realized, information transmission with an IEC 61850-based power network is conveniently realized, the standardization trend of power network communication is met, information transmission is more stable and reliable, and the high-level application requirement of a transformer substation switch cabinet temperature online monitoring system on data is met; the development cost is low, the technology is mature, and the reliability is high.

Drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

In the figure: 1-a main CPU module; 2-a power supply module; 3-a network module; 4-a wireless acquisition module; 5-a human-machine interface module; 6-memory module.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1, the IEC 61850-based substation switch cabinet temperature measurement terminal includes a main CPU module 1, a power module 2, a network module 3, a wireless acquisition module 4, a human-computer interface module 5 and a memory module 6, wherein the main CPU module 1 is connected to the network module 3, the wireless acquisition module 4, the human-computer interface module 5 and the memory module 6 through a data bus. The power module 2 is connected with each module through a power supply connecting wire to supply power to each module, the power module 2 adopts alternating current and direct current double-path power supply, and the power module is adaptive to 110V-220V.

The main CPU module 1 adopts an ARM-Linux system framework and meets the IEC61850 communication standard; the network module 3 adopts a switch chip to expand a plurality of network ports and is connected with the main CPU module 1 by an MII port, and the MII is the Ethernet industry standard defined by IEEE-802.3; the wireless acquisition module 4 is communicated with the temperature measurement sensor by adopting 433MHZ frequency, and is communicated with the main CPU module 1 by adopting an RS-485 communication mode; the human-computer interface module 5 adopts a 3.5-inch color screen and 8 keys, an operation interface can display a collected temperature real-time value, set an IP address, set a self address and parameters of each communication port, and is connected with the main CPU module 1 by adopting an LVDS signal interface and a USB data bus; the memory module 6 directly adopts an industrial grade SD card and 8G memory space.

In the transformer substation switch cabinet temperature on-line monitoring system, based on an IEC61850 transformer substation switch cabinet temperature measurement terminal, the collected temperature data is uploaded to a CAC on-line monitoring system by adopting an IEC61850 communication standard, and then the collected temperature data enters a power data network, so that the high-level application requirement of the transformer substation switch cabinet temperature on-line monitoring system on the data is met.

The transformer substation switch cabinet temperature measurement terminal based on IEC61850 that fig. 1 shows above is the specific embodiment of the utility model, has embodied the utility model discloses substantive characteristics and progress can be according to actual use needs the utility model discloses an inspire, carry out the equivalence modification in aspects such as shape, structure to it, all be on the scope of protection of this scheme.

Claims

1. IEC61850 transformer substation switch cabinet temperature measurement terminal based on, its characterized in that: the intelligent power supply system comprises a main CPU module (1), a power supply module (2), a network module (3), a wireless acquisition module (4), a human-computer interface module (5) and a memory module (6) based on IEC61850 communication standard, wherein the main CPU module (1) is connected with the network module (3), the wireless acquisition module (4), the human-computer interface module (5) and the memory module (6) through a data bus, and the power supply module (2) is connected with the modules through power supply connecting wires.

2. The IEC61850 based substation switchgear temperature measurement terminal of claim 1, characterized in that: the wireless acquisition module (4) is connected and communicated with an external temperature sensor by adopting 433MHZ wireless communication frequency, and the wireless acquisition module (4) is communicated with the main CPU module (1) by adopting RS-485.

3. The IEC61850 based substation switchgear temperature measurement terminal of claim 1, characterized in that: the network module (3) adopts a switch chip to expand a multi-path network port, and the network module (3) is connected with the main CPU module (1) by adopting an MII.

4. The IEC61850 based substation switchgear temperature measurement terminal of claim 1, characterized in that: the human-computer interface module (5) consists of a 3.5-inch color LCD and an 8-key keyboard, and is connected with the main CPU module (1) by adopting an LVDS signal interface and a USB2.0 data bus.

5. The IEC61850 based substation switchgear temperature measurement terminal of claim 1, characterized in that: the power module (2) adopts an alternating current and direct current double-path power supply, and is adaptive to 110V-220V.

6. The IEC61850 based substation switchgear temperature measurement terminal of claim 1, characterized in that: the memory module (6) adopts an industrial grade SD card and 8G memory space.

7. The IEC61850 based substation switchgear temperature measurement terminal of claim 1, characterized in that: the main CPU module (1) adopts an ARM chip architecture.