CN205404700U

CN205404700U - Take multi -functional FPGA acquisition unit of time reference output

Info

Publication number: CN205404700U
Application number: CN201620130192.2U
Authority: CN
Inventors: 赵小凤; 杨炳; 袁义彬; 张俊
Original assignee: CHENGDU FUHE POWER AUTOMATION COMPLETE EQUIPMENT Co Ltd
Current assignee: CHENGDU FUHE POWER AUTOMATION COMPLETE EQUIPMENT Co Ltd
Priority date: 2016-02-19
Filing date: 2016-02-19
Publication date: 2016-07-27
Anticipated expiration: 2026-02-19

Abstract

The utility model discloses a take multi -functional FPGA acquisition unit of time reference output, including receiving module, data processing module, time processing module and signal control module, data processing module includes data acquisition module, data cache module and data transmission module, receiving module receiving converter analog signal, switching value signal, message signal to convey it to data acquisition module, data acquisition module carries out synchronous sampling to it and stamps accurate time mark to the microsecond, then encapsulate it for the huge frame ethernet packet of PCAP form to send to embedded industrial computer, constitute trouble record ripples device or network message record analytical equipment. The utility model provides a compatible poor, the technical problem that the expansibility is poor of present data acquisition unit, provide unified time reference, realized that it handles and the transmission to take the high -speed of time mark data, state information, wide application in electric wire netting data acquisition, it is good to have the real -time, the precision is high, the compatibility is good, characteristics such as practicality height.

Description

Multi-functional FPGA collecting unit with time reference output

Technical field

This utility model relates to electric network data and gathers field, particularly relates to a kind of multi-functional FPGA collecting unit with time reference output.

Background technology

Along with sensing measurement technology, fiber optical network communication technology, computer technology fast development, the Modern New intelligent grid of all-round construction " rational in infrastructure, advanced technology, safe and reliable, economical and efficient, low-carbon environment-friendly " has become the direction of China's power system development.Tradition electrical network changes to intelligent grid, it is desirable to the secondary devices such as fault wave recording device, network message record analysis device have higher data sampling and processing and communication capacity.How to set up high speed, efficient, Large Copacity, secondary device multi-functional, intelligentized, to adapt to the demand that secondary device is developed by intelligent grid to intelligent, miniaturization.

In prior art, secondary equipment in power system generally adopts modularized design structure, data acquisition is the part in secondary device, generally adopt in a dsp processor and use multiple CPLD processor, or use multiple to have the scheme of the plug-in unit of dsp processor to realize, this kind of conceptual design relative complex, and the order by clock rate and indoor design thereof limited, it is impossible to meet the requirement that multi signal amount gathers；Meanwhile, multiprocessor design not only can increase substantial amounts of circuit and cost, affects real-time and the reliability of data acquisition, it is difficult to meets the current power system requirement to the quantity of data acquisition, precision and real-time.Prior art exists following shortcoming:

1. autgmentability is poor, and available data collecting unit cannot separately installed use.

2. poor compatibility, available data collecting unit cannot be connected use with other equipment, and be only capable of meeting the demand self gathered, it is impossible to accomplish to gather the signals such as the tradition analog quantity of transformer station, switching value, the signals such as intelligent substation SV, GOOSE, FT3 message can be gathered again.

3. available data collecting unit is without time management and time reference output function.

4. traditional data collecting unit generally adopts pci bus to carry out data transmission, and message transmission rate is low, cannot meet the transmission requirement of high speed, high bandwidth.

Utility model content

The purpose of this utility model is that provides a kind of multi-functional FPGA collecting unit with time reference output to solve the problems referred to above.

This utility model is achieved through the following technical solutions above-mentioned purpose:

nullA kind of multi-functional FPGA collecting unit with time reference output，The signal input part of described FPGA collecting unit receives the various types of signal in transformer station，The described signal output part of FPGA collecting unit is connected with the signal input part of built-in industrial control machine，Described FPGA collecting unit includes receiver module、Data processing module、Time-triggered protocol module and signal control module，The signal input part of described receiver module receives the various types of signal in described transformer station，The signal output part of described receiver module is connected with the signal input part of described data processing module，The signal output part of described data processing module is connected with the signal input part of described built-in industrial control machine，The status signal output of described data processing module controls module by described signal and is connected with the state signal input terminal of described built-in industrial control machine，The time reference outfan of described time-triggered protocol module respectively with described receiver module、Described data processing module and described signal control the time reference input of module and connect.

Specifically, various types of signal in described transformer station is SV, GOOSE, FT3 message signals in the analog quantity in tradition transformer station, on-off model and intelligent substation, described receiver module includes A/D convertor circuit, photoelectric isolating circuit and message and receives circuit, described message receives circuit input end and is provided with optical fiber interface, described analog signals is connected with the input of described A/D convertor circuit, described on-off model is connected with the input of described photoelectric isolating circuit, and the optical fiber interface that described message signals receives circuit input end with described message is connected.

Preferably, described data processing module includes data acquisition module, data cache module and data transmission blocks, and described data transmission blocks is provided with gigabit ethernet interface, and described signal controls to be provided with serial line interface in module.

Preferably, the input of described time-triggered protocol module receives optical electrical IRIG-B code or PTP message signals, and described time-triggered protocol module is provided with external equipment craft port.

Having the beneficial effects that of multi-functional FPGA collecting unit with time reference output described in the utility model:

1) this utility model by time-triggered protocol module can realize optical electrical IRIG-B code, PTP message pair time mode, and provide unified time reference to each module and other equipment, and meet the national grid scheduling demand to setup time synchronous regime monitoring function.

2) this utility model has flexibly abundant interface, it is achieved that based on time reference signal pair time the time synchronized quantity of state information such as state, measurement, self-inspection and each module and plate between the real-time, interactive of work state information.

3) multi-analog/on-off model, SV/GOOSE message signals and FT3 message signals can be carried out parallel synchronous collection by this utility model, and for gathering data markers UTC time, then the huge frame data bag in accordance with PCAP standard is converted to by unified for the data message of collection, it is easy to subsequent conversion, identifies and share, fully meet present stage and the Future Power System demand to signals collecting, real-time is good, and practicality is high.

4) this utility model realizes the huge frame data with time reference signal and wraps between plate and the high speed data transfer of equipment room, there is provided data message accurately for fault wave recording device or network message device data analysis, substantially increase the speed of data transmission and the accuracy of fault verification.

Accompanying drawing explanation

Fig. 1 is the structured flowchart of the multi-functional FPGA collecting unit with time reference output described in the utility model.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail:

nullAs shown in Figure 1，A kind of multi-functional FPGA collecting unit with time reference output of this utility model，The signal input part of FPGA collecting unit receives various types of signal in transformer station，The signal output part of FPGA collecting unit is connected with the signal input part of built-in industrial control machine，FPGA collecting unit includes receiver module、Data processing module、Time-triggered protocol module and signal control module，The signal input part of receiver module receives the various types of signal in described transformer station，The signal output part of receiver module is connected with the signal input part of data processing module，The signal output part of data processing module is connected with the signal input part of built-in industrial control machine，The status signal output of data processing module controls module by signal and is connected with the state signal input terminal of built-in industrial control machine，The time reference outfan of time-triggered protocol module respectively with receiver module、Data processing module and signal control the time reference input of module and connect.

nullVarious types of signal in transformer station is the analog quantity in tradition transformer station、SV in on-off model and intelligent substation、GOOSE、FT3 message signals，Receiver module includes A/D convertor circuit、Photoelectric isolating circuit and message receive circuit，Message receives circuit input end and is provided with optical fiber interface，Analog signals is connected with the input of A/D convertor circuit，On-off model is connected with the input of photoelectric isolating circuit，The optical fiber interface that message signals receives circuit input end with message is connected，The message signals of message signals outfan output is SV、GOOSE、FT3 message signals，Data processing module includes data acquisition module、Data cache module and data transmission blocks，Data transmission blocks is provided with gigabit ethernet interface，Signal controls to be provided with serial line interface in module，The input input optical electrical IRIG-B code of time-triggered protocol module or PTP message signals，Time-triggered protocol module is provided with external equipment craft port.

A kind of with time reference output multi-functional FPGA collecting unit realize method, comprise the following steps:

(1) A/D convertor circuit in receiver module and photoelectric isolating circuit conversion conditioned after secondary side analog signals and switching signal, message receives SV, GOOSE, FT3 message signals that circuit conversion receives through optical fiber interface, and adopt the time reference signal that time-triggered protocol module provides that the signal received is carried out synchronous calibration, then the signal after conversion is sent to data acquisition module.

(2) data acquisition module receives the signal after changing, and with the sample frequency of 20000 points/second, it is carried out real-time synchronization sampling, receives the time reference signal that time-triggered protocol module provides simultaneously, and sampled data is stamped the markers being accurate to microsecond；

(3) data cache module by with time target sampled data be converted to the message data bag of PCAP reference format, and be encapsulated as in buffer memory after Ethernet data bag to the internal storage of data cache module；

(4) Ethernet data bag is formed the huge frame data bag of 8k, and sends it to built-in industrial control machine by the gigabit ethernet interface in data transmission blocks；

(5) the huge frame data bag received is resolved by built-in industrial control machine, obtains the data required for fault wave recording device or network message record analysis device, the analysis of complete paired data, process, record and storage.

The operation principle of time-triggered protocol module is as follows: receive optical electrical IRIG-B code or PTP message signals, and it is resolved, obtain time reference signal (serial time message and pulse per second (PPS)), and provide time reference to FPGA collecting unit (include receiver module, data processing module and signal and control module) and built-in industrial control machine, time reference signal is extended according to demand simultaneously, isolates, level conversion etc. process after output IRIG-B code or pps pulse per second signal to external equipment craft port, it is simple to measure and during to external harvester pair；Time synchronized status monitoring function can be realized on the other hand, control module so that serial mode to be given built-in industrial control machine by signal.

Signal controls module and assists time-triggered protocol module to realize time synchronized state-detection, and quantity of state information (pair time state, measurement, self-inspection etc.) is sent to built-in industrial control machine, realize fault wave recording device or the time synchronized status monitoring function of network message record analysis device, and realize the real-time, interactive of duty between plate (such as data acquisition state, data transmission state etc.) by receiving time reference signal.

In FPGA collecting unit, FPGA processor employing model isIVFPGAEP4CE75。

The message of FPGA collecting unit data input pin receives input and adopts optical fiber interface, and FPGA collecting unit data output end adopts gigabit ethernet interface.

The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, every technology deformation made according to the technical solution of the utility model, each falls within protection domain of the present utility model.

Claims

null1. the multi-functional FPGA collecting unit with time reference output，The signal input part of described FPGA collecting unit receives the various types of signal in transformer station，The described signal output part of FPGA collecting unit is connected with the signal input part of built-in industrial control machine，It is characterized in that: described FPGA collecting unit includes receiver module、Data processing module、Time-triggered protocol module and signal control module，The signal input part of described receiver module receives the various types of signal in described transformer station，The signal output part of described receiver module is connected with the signal input part of described data processing module，The signal output part of described data processing module is connected with the signal input part of described built-in industrial control machine，The status signal output of described data processing module controls module by described signal and is connected with the state signal input terminal of described built-in industrial control machine，The time reference outfan of described time-triggered protocol module respectively with described receiver module、Described data processing module and described signal control the time reference input of module and connect.
2. the multi-functional FPGA collecting unit with time reference output according to claim 1, it is characterized in that: the various types of signal in described transformer station is the analog quantity in tradition transformer station, SV in on-off model and intelligent substation, GOOSE, FT3 message signals, described receiver module includes A/D convertor circuit, photoelectric isolating circuit and message receive circuit, described message receives circuit input end and is provided with optical fiber interface, described analog signals is connected with the input of described A/D convertor circuit, described on-off model is connected with the input of described photoelectric isolating circuit, the optical fiber interface that described message signals receives circuit input end with described message is connected.
3. the multi-functional FPGA collecting unit with time reference output according to claim 1, it is characterized in that: described data processing module includes data acquisition module, data cache module and data transmission blocks, being provided with gigabit ethernet interface in described data transmission blocks, described signal controls to be provided with serial line interface in module.
4. the multi-functional FPGA collecting unit with time reference output according to claim 1, it is characterized in that: the input of described time-triggered protocol module receives optical electrical IRIG-B code or PTP message signals, and described time-triggered protocol module is provided with external equipment craft port.