CN213072213U

CN213072213U - Feeder terminal based on IEC61850 communication function

Info

Publication number: CN213072213U
Application number: CN202021276397.4U
Authority: CN
Inventors: 黎舒文; 周明辉; 周光辉
Original assignee: ZHUHAI GOPOWER SMART GRID CO Ltd
Current assignee: ZHUHAI GOPOWER SMART GRID CO Ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-04-27
Anticipated expiration: 2030-07-03

Abstract

The utility model discloses a feeder terminal based on IEC61850 communication function, its characterized in that: the interactive data processing system comprises a data processing module, and a data acquisition module, an interactive data receiving module and an interactive data sending module which are respectively connected with the data processing module; the terminal can realize the interoperation of products of different manufacturers, realize the seamless butt joint of data when the equipment which accords with the IEC61850 standard and does not accord with the IEC61850 standard is butted, and reduce the cost of materials and time when a client changes equipment.

Description

Feeder terminal based on IEC61850 communication function

Technical Field

The utility model relates to a 10KV middling pressure system technical field, concretely relates to feeder terminal based on IEC61850 communication function.

Background

The relay protection information interface matching standard IEC60870-5-103 protocol published in 1997 by the International electrotechnical Commission IEC is widely adopted in the mainstream substation automation system in China. Due to the fact that the formulation time of the protocol is relatively long and limited by technical conditions, the defects of the protocol are increasingly obvious today when Ethernet and intelligent digital equipment are rapidly developed. The interconnection of different manufacturer devices needs protocol conversion equipment, a large amount of information point-to-point work needs to be carried out, the integrated workload of the automatic system of the transformer substation is increased, and the system information processing efficiency is low. The development of secondary equipment and systems of transformer substations, equipment integration and information integration have become necessary trends, and a unified information platform is urgently needed to realize the whole automation system.

SUMMERY OF THE UTILITY MODEL

Based on prior art's not enough, the utility model aims at providing a feeder terminal based on IEC61850 communication function to become IEC61850 standard with the interactive standard of external equipment or gathering to the information that gathers self is sent with same standard.

The technical scheme of the utility model is that:

the utility model provides a feeder terminal based on 61850 communication function which characterized in that: the interactive data processing system comprises a data acquisition module, an interactive data receiving module, a data processing module and an interactive data sending module;

the data acquisition module is used for acquiring current or voltage on a line and transmitting an acquired signal to the data processing module;

the interactive data receiving module is used for receiving data of a master station or external traditional protocol equipment and transmitting the received data to the data processing module;

the data processing module is used for converting the received signals collected by the data collecting module into IEC61850 standard signals and/or analyzing the data received from the interactive data receiving module, and converting data composition into IEC61850 standard forwardable data and transmitting the data to the interactive data transmitting module;

and the interactive data sending module is used for sending the data which is converted and organized by the data processing module and accords with the 61850 standard.

Further, the data processing module comprises an embedded microprocessor, and a memory, an ethernet interface, an SPI expansion interface, and a general I/O interface which are respectively connected with the embedded microprocessor, the interactive data receiving module is in communication connection with the embedded microprocessor through the ethernet interface and/or the I/O interface, the data acquisition module is connected with the embedded microprocessor through the SPI expansion interface or the general I/O interface, and the interactive data transmitting module is in communication connection with the embedded microprocessor through the ethernet interface and/or the I/O interface.

Further, the master station or the external device adopts a device of a non-IEC 61850 standard and/or an IED device conforming to the IEC61850 standard.

Furthermore, the data processing module further comprises an RS232 serial port connected with the embedded microprocessor, and the embedded microprocessor is further connected with a display screen and/or an alarm through the RS232 serial port.

Furthermore, the data acquisition module comprises a current transformer and/or a voltage transformer, and an analog-to-digital converter is connected with the output end of the current transformer and/or the voltage transformer, and the output end of the analog-to-digital converter is connected with the embedded microprocessor through an I/O interface.

Further, the embedded microprocessor adopts a microprocessor with the model number of AM 335.

The utility model has the advantages that: the terminal can realize the interoperation of products of different manufacturers, realize the seamless butt joint of data when the equipment which accords with the IEC61850 standard and does not accord with the IEC61850 standard is butted, and reduce the cost of materials and time when a client changes equipment.

Drawings

Fig. 1 is a block diagram of the embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the features of the following embodiments and examples may be combined with each other without conflict.

As shown in fig. 1, a 61850 communication function-based feeder terminal includes a data acquisition module, an interactive data receiving module, a data processing module and an interactive data transmitting module;

the interactive data receiving module is used for receiving data of a master station or external traditional protocol equipment and/or equipment conforming to an IEC61850 protocol and transmitting the received data to the data processing module;

the data processing module is used for converting the received signals collected by the data collecting module into signals conforming to the IEC61850 standard and/or analyzing the data received from the interactive data receiving module, and converting the data composition not conforming to the IEC61850 standard into data which can be forwarded by the IEC61850 standard and transmitting the data to the interactive data transmitting module;

and the interactive data sending module is used for sending the data which is processed and/or organized by the data processing module and is converted to the data which accords with the IEC61850 standard.

The data processing module comprises an embedded microprocessor, and a memory, an Ethernet interface, an SPI expansion interface and a general I/O interface which are respectively connected with the embedded microprocessor, the interactive data receiving module is in communication connection with the embedded microprocessor through the Ethernet interface and/or the I/O interface, the data acquisition module is connected with the embedded microprocessor through the SPI expansion interface or the general I/O interface, and the interactive data sending module is in communication connection with the embedded microprocessor through the Ethernet interface and/or the I/O interface.

The main station or the external equipment adopts equipment of non-IEC 61850 standard and/or IED equipment conforming to IEC61850 standard.

The data processing module further comprises an RS232 serial port connected with the embedded microprocessor, and the embedded microprocessor is further connected with a display screen and/or an alarm through the RS232 serial port.

The data acquisition module comprises a current transformer and/or a voltage transformer and is connected with the output end of the current transformer and/or the voltage transformer through an analog-to-digital converter, and the output end of the analog-to-digital converter is connected with the embedded microprocessor through an I/O interface.

The embedded microprocessor adopts a microprocessor with the model number of AM 335.

In the embodiment, the current and voltage on the line are collected and converted through the data collection module, so that the analog quantity on the line is converted into the digital quantity more suitable for calculation; the interactive data receiving module receives data from the main station or other equipment through communication modes such as Ethernet and the like so as to facilitate subsequent processing; and the data processing module judges the received data, analyzes the data which does not conform to the IEC61850 standard, organizes the analyzed data into the IEC61850 standard, and sends the data through the interactive data sending module.

In addition, in the process, the result of data conversion or transmission can be displayed through the display screen, and when the conversion transmission is abnormal, an alarm can be given through the alarm.

The feeder terminal changes the standard of interaction with external equipment into an IEC61850 standard through a powerful data processing module and sends the information collected by the feeder terminal per se in the same standard. The product interoperation of different manufacturers is realized, seamless data butt joint is realized when equipment conforming to the 61850 standard is butted, and meanwhile, the material and time cost of a client for equipment change is reduced.

The above embodiments are only intended to represent the concentrated embodiments of the present invention, and the description thereof is more specific and detailed, but it is not to be understood as the limitation of the scope of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the concept of the present invention, and all of them belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a feeder terminal based on IEC61850 communication function which characterized in that: the interactive data processing system comprises a data acquisition module, an interactive data receiving module, a data processing module and an interactive data sending module;

the data processing module is used for converting the received signals collected by the data collecting module into signals conforming to the IEC61850 standard and/or analyzing the data received from the interactive data receiving module, and converting the data not conforming to the IEC61850 standard into data which can be forwarded by the IEC61850 standard and transmitting the data to the interactive data transmitting module;

2. A feeder terminal based on IEC61850 communication function as claimed in claim 1, characterized in that: the data processing module comprises an embedded microprocessor, and a memory, an Ethernet interface, an SPI expansion interface and a general I/O interface which are respectively connected with the embedded microprocessor, the interactive data receiving module is in communication connection with the embedded microprocessor through the Ethernet interface and/or the I/O interface, the data acquisition module is connected with the embedded microprocessor through the SPI expansion interface or the general I/O interface, and the interactive data sending module is in communication connection with the embedded microprocessor through the Ethernet interface and/or the I/O interface.

3. A feeder terminal based on IEC61850 communication function as claimed in claim 1, characterized in that: the main station or the external equipment adopts equipment of non-IEC 61850 standard and/or IED equipment conforming to IEC61850 standard.

4. A feeder terminal based on IEC61850 communication function as claimed in claim 2, characterized in that: the data processing module further comprises an RS232 serial port connected with the embedded microprocessor, and the embedded microprocessor is further connected with a display screen and/or an alarm through the RS232 serial port.

5. A feeder terminal based on IEC61850 communication functions as claimed in claim 4, characterized in that: the data acquisition module comprises a current transformer and/or a voltage transformer and is connected with the output end of the current transformer and/or the voltage transformer through an analog-to-digital converter, and the output end of the analog-to-digital converter is connected with the embedded microprocessor through an I/O interface.

6. A feeder terminal based on IEC61850 communication functions as claimed in claim 2 or 4, characterized by: the embedded microprocessor adopts a microprocessor with the model number of AM 335.