CN202948080U

CN202948080U - Relay protection test signal conversion apparatus of intelligent transformer station

Info

Publication number: CN202948080U
Application number: CN201220450517.7U
Authority: CN
Inventors: 欧阳帆; ***; 刘海峰; 荀吉辉; 潘伟; 姚程
Original assignee: Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd; Hunan Xiangdian Test Research Institute Co Ltd
Current assignee: Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd; Hunan Xiangdian Test Research Institute Co Ltd
Priority date: 2012-09-06
Filing date: 2012-09-06
Publication date: 2013-05-22
Anticipated expiration: 2022-09-06

Abstract

Disclosed in the utility model is a relay protection test signal conversion apparatus of an intelligent transformer station. The apparatus comprises a power PC microprocessor, an FPGA signal processor, a GPS module and an interface module; the power PC microprocessor is connected with the FPGA signal processor by an internal bus, and the GPS module and the interface module are respectively connected with the FPGA signal processor. The advantages of the apparatus are as follows: firstly, accessed voltage and current analog quantities can be converted into digital messages meeting the IEC61850 provision and a relay protection test apparatus suitable for a conventional transformer station can be connected to an intelligent transformer station; secondly, signals of a digital instruction message and an idle contact switching value can be received and sent and mutual mapping and conversion of the two different kinds of switch signals can be realized; thirdly, a plurality of synchronous signals and GPS satellite time-keeping signals can be received, thereby realizing synchronous sending of the system; and fourthly, host computer software can be used to set an emitted sample value message and an emitted instrument message by communication ports and the operation is simple, thereby high-grade function application of debugging of an intelligent assembly.

Description

Intelligent substation relay protection test chromacoder

Technical field

The utility model belongs to the electrical engineering technical field, relates in particular to a kind of intelligent substation relay protection test chromacoder.

Background technology

Mainly carry out network service based on IEC61850 communication protocol between electrical secondary system in the station of intelligent substation, the signal sampling value such as its electric current, voltage and action, message-sending instruction all adopt the digital network message mode; In the station of conventional substation between electrical secondary system mainly based on the sample mode of electric simulation signal and based on the instruction mode of switching value, there is very big difference in two kinds of transformer stations on the electrical secondary system structure in the station.

Power industry is carried out the maintenance and the most relay-protection tester devices that use the output analog quantity of debugging of protective device, is applicable to conventional substation, and is not suitable for intelligent substation; Do not have at present yet can compatible two kinds of Substation Design modes debugging apparatus.This will cause, and equipment can't be general in same electrical network dissimilar transformer station, certainly will reduce equipment service efficiency and range of application, increases power grid enterprises' O﹠M cost.

The utility model content

The purpose of this utility model is to provide a kind of intelligent substation relay protection test chromacoder; make the present relay-protection tester device of the output analog quantity of use on a large scale of electric system be applicable to the maintenance debugging situation of intelligent substation; improve power grid enterprises' equipment service efficiency, reduce O﹠M cost.

For achieving the above object, the technical solution adopted in the utility model is:

Intelligent substation relay protection test chromacoder; comprise Power PC microprocessor, FPGA signal processor, GPS module and interface module; wherein Power PC microprocessor is connected with the FPGA signal processor by internal bus, and the GPS module is connected with interface module with the FPGA signal processor and is connected.

Described interface module comprises that fiber optic network module, optical fiber serial port module, analog input sampling module (comprising two types of electric current, voltages) and A/D modular converter thereof, switching value open into module, switching value and leave module, wherein the analog input sampling module is connected with the FPGA signal processor by the A/D modular converter, and fiber optic network module, optical fiber serial port module, switching value are opened and be connected module into module with switching value and be connected with the FPGA signal processor respectively.

Power PC microprocessor, FPGA signal processor are that central authorities process and communication unit, are used for receiving instruction and configuration file and the dissection process that the PC upper computer software issues;

Analog input sampling module and A/D converting unit are used for receiving electric current, the voltage analog that test device for relay protection sends, and convert digital signal to;

Switching value is opened into module and switching value and is left module, is used for output switch amount and input switch amount;

Fiber optic network module and optical fiber serial port module be used for to be transmitted based on the sampling value message of IEC61850 communication protocol (containing IEC61850-9-2, IEC61850-9-1, IEC60044-8 message) and action, message-sending instruction message (containing the GOOSE message), with secondary network in intelligent substation and component interface;

The GPS module for the synchronizing signal that receives light IRIG-B code, light pulse per second (PPS) mode, perhaps receives the punctual signal of gps satellite, realizes the system synchronization function that digital signal sends.

The intelligent substation relay protection test chromacoder that the utility model proposes, its advantage and effect comprise:

(1) voltage, the current analog amount of access can be converted to the digital message that meets the IEC61850 stipulations, can will be applicable to the test device for relay protection access intelligent substation of conventional substation;

(2) digital command message and idle contact switching value be can receive and send, and mutual mapping and the conversion of above-mentioned two kinds of dissimilar switching signals realized;

(3) can receive the punctual signal of multiple synchronization signal (light IRIG-B code, light pulse per second (PPS)) and gps satellite, realize that system synchronization sends;

(4) commissioning staff can utilize upper computer software through communication port, sampling value message and the instruction message that sends to be arranged, and is simple to operate, can realize that the Premium Features of intelligent assembly debugging are used;

(5) modular design and installation mode can conveniently increase and decrease module and not affect allomeric function and use, and lightweight, is easy to carry.

Description of drawings

Fig. 1 is structured flowchart of the present utility model.

Fig. 2 is single device debugging wiring schematic diagram of the utility model application mode.

Fig. 3 is that the net of the utility model application mode is adopted net jumping uniting and adjustment wiring schematic diagram.

Fig. 4 is that the net of directly adopting of the utility model application mode is jumped the uniting and adjustment wiring schematic diagram.

Embodiment

The utility model comprises Power PC microprocessor 8, FPGA signal processor 8, reaches GPS module 7, interface module as shown in Figure 1; Interface module comprises that fiber optic network module 1, optical fiber serial port module 2, analog input sampling module (comprising two types of electric current, voltages) 3 and A/D modular converter 6 thereof, switching value open into module 4, switching value and leave module 5; Wherein Power PC microprocessor 9 is connected with FPGA signal processor 8 by internal bus, analog input sampling module 3 is connected with FPGA signal processor 8 by AD modular converter 6, and GPS module, fiber optic network module 1, optical fiber serial port module 2, switching value are opened and be connected module 5 into module 4 with switching value and be connected with FPGA signal processor 8 respectively; For controlling the utility model device, need one of configuration that the special-purpose computer (host computer) 10 of controlling software is installed, host computer 10 has human-machine interface function simultaneously, host computer 10 be connected by Ethernet with the Power PC microprocessor 9 of this device or netting twine direct-connected.

Power PC microprocessor 9 is responsible for receiving the instruction that host computer 10 issues, and passes to FPGA signal processor 8 through under dissection process, and operation information, configuration information that host computer 10 is required to upload send to host computer 10.Power PC microprocessor 9 passes through the communication of device internal bus with FPGA signal processor 8.After passing under the configuration of host computer 10, device is preserved configuration automatically, and power down is not lost, and this moment, Power PC microprocessor 9 can interrupt with the communication of host computer 10.

FPGA signal processor 8 is responsible for receiving the concrete configuration instruction of Power PC microprocessor 9 issues, and under install to the interface module buffer memory of appointment.FPGA signal processor 8 utilizes its high speed, real-time characteristic to process simultaneously signal and the message of each interface module transmitting-receiving.Electric current, the voltage that specifically will come from analog input sampling module 3 are processed and are resolved, be converted to digital quantity, export by corresponding fiber optic network (or optical fiber serial ports) module port according to configuration meet IEC61850-9-1,9-2 or IEC60044-8(FT-3) light signal of stipulations; Switching value is opened to be converted to into state meets IEC61850-8-1(GOOSE) fiber optic network module output that the optical signals of stipulations is corresponding, and be converted to status signal after the GOOSE packet parsing that the fiber optic network module is received and leave module output by switching value.

Each interface module is according to the practical application needs, realize analog quantity, switching value leave communicate by letter with fiber optic network or the optical fiber serial communication between the signal conversion.

Fig. 2～4 are for being applied to the utility model the example of different wiring embodiments of the intelligent protection module testing of intelligent substation.

Fig. 2 is wiring example 1, is the single intelligent protection assembly of network message form for sampling and state, is applicable to intelligent protection assembly monomer and debugs:

(1) voltage of relay-protection tester, the output of current analog amount are received the input end of input sample module of the present utility model, leave contact and receive switching input module of the present utility model and open into end, open and receive switching value output module into contact and leave end;

(2) fiber optic network module interface of the present utility model is received sampling optical fiber interface and the GOOSE optical fiber interface of intelligent protection assembly;

(3) by the host computer interface, adopt manually to arrange or import SCD, CID file mode, select corresponding message format, configure the port mapping relation of analog quantity of the present utility model and digital message.

Fig. 3 is wiring example 2, adopts net to adopt net jumping mode for intelligent substation, is applicable to field adjustable:

(1) with the step (1) of example 1;

(2) fiber optic network module interface of the present utility model is received the corresponding SMV network of secondary network and GOOSE network in intelligent substation, intelligent substation physical cabling mode is pressed in intelligent terminal and the wiring of intelligent protection assembly;

(3) with the step (3) of example 1.

Fig. 4 is wiring example 3, for adopting intelligent substation to adopt the net jumping mode of directly adopting:

(1) with the step (1) of example 1;

(2) with the sampling optical fiber interface of receiving the intelligent protection assembly for the fiber optic network interface that sends sampled value of the present utility model, the fiber optic network interface that is used for transmitting-receiving instruction message is received corresponding GOOSE network;

(3) with the step (3) of example 1.

Claims

1. intelligent substation relay protection test chromacoder; it is characterized in that comprising Power PC microprocessor, FPGA signal processor, GPS module and interface module; wherein Power PC microprocessor is connected with the FPGA signal processor by internal bus, and the GPS module is connected with interface module with the FPGA signal processor and is connected.

2. intelligent substation relay protection test chromacoder according to claim 1; it is characterized in that described interface module comprises that fiber optic network module, optical fiber serial port module, analog input sampling module and A/D modular converter thereof, switching value are opened into module, switching value and leaves module; wherein the analog input sampling module is connected with the FPGA signal processor by the AD modular converter, and fiber optic network module, optical fiber serial port module, switching value are opened and be connected module into module with switching value and be connected with the FPGA signal processor respectively.