CN102621514A - Electronic transformer verifying device - Google Patents
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- CN102621514A CN102621514A CN2012100930942A CN201210093094A CN102621514A CN 102621514 A CN102621514 A CN 102621514A CN 2012100930942 A CN2012100930942 A CN 2012100930942A CN 201210093094 A CN201210093094 A CN 201210093094A CN 102621514 A CN102621514 A CN 102621514A
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Abstract
The invention relates to an electronic transformer verifying device. The electronic transformer verifying device aims to solve the problems that the conventional transformer verifying device lacks a corresponding digital interface and cannot verify an electronic transformer. The electronic transformer verifying device comprises a standard electronic transformer group, a standard merging unit, a signal conditioning box, an industrial computer, a merging unit interface, an analog quantity input interface and an optical pulse expansion interface. The signal conditioning box comprises a No.1 optical fiber transceiver, a No.2 optical fiber transceiver, an over-voltage protection circuit, a data acquisition card and an optical pulse expansion circuit; the industrial computer is provided with a No.1 electric ethernet port, a No.2 electric ethernet port and a peripheral component interconnect (PCI) bus interface; and the standard electronic transformer group can consist of a single standard electronic transformer or a plurality of standard electronic transformers according to different application occasions. The electronic transformer verifying device is applied in the field of verification of transformers for electric power systems.
Description
Technical field
The present invention relates to power equipment test field, be specifically related to a kind of checking electronic type transformers device.
Background technology
Traditional transducer check device is made up of standard mutual inductor, tested mutual inductor and mutual-inductor tester.Wherein, mutual-inductor tester generally all adopts electrician's formula error of measurement principle, and promptly tested mutual inductor and standard mutual inductor are connected into the difference loop, utilizes difference-measuring instrument to obtain the ratio error and the phase error of tested mutual inductor.
Along with development of technology, be that the electronic mutual inductor of new generation of representative is just progressively put on market with the optics mutual inductor.Regulation according to standard GB/T 20847.7 electronic type voltage transformers and GB/T 20847.8 electronic current mutual inductors; The secondary output of electronic mutual inductor is different with the secondary output of traditional mutual inductor, can be divided into two kinds of analog quantity output and digital quantity outputs.The tradition mutual-inductor tester is corresponding digital interface and can not carry out verification to electronic mutual inductor for want of.And the analog quantity output of electronic mutual inductor neither be exported in traditional simulation, and its output capacity is little more many than tradition output.The rated secondary voltage standard value of conventional voltage mutual inductor is that the rated secondary current standard value of 100V,
conventional current mutual inductor is 5A, 1A, and the specified secondary standard value of electronic type voltage transformer of simulation output is that the specified secondary standard value of electronic current mutual inductor that 1.625V, 2V, 3.25V, 4V, 6.5V or
analog quantity are exported is 22.5mV, 150mV, 200mV, 225mV, 4V.
In addition; Electronic mutual inductor also receives the influence of adjacent phase mutual inductor easily in actual motion; Thereby influence the measurement performance of electronic mutual inductor, thereby be necessary that the ruuning situation of simulating reality detects the three-phase electronic mutual inductor simultaneously, to investigate the antijamming capability of electronic mutual inductor.
Summary of the invention
The present invention is the problem that can not carry out verification to electronic mutual inductor in order to solve traditional transducer check device shortage corresponding digital interface.
A kind of checking electronic type transformers device of the present invention; This calibration equipment comprises: the standard electric minor mutual inductor group of output digital quantity signal, standard merge cells, signal process box, industrial computer, optical fiber transmitting-receiving interface, analog quantity input interface and light pulse expansion interface, and said signal process box comprises: No. 1 fiber optical transceiver, No. 2 fiber optical transceivers, overvoltage crowbar, data collecting card and light pulse expanded circuits; Described data collecting card comprises: A/D modular converter and synchronizing pulse sending module; Said industrial computer disposes No. 1 electric Ethernet interface, No. 2 electric Ethernet interfaces and pci bus interface; The optical fiber serial data that the standard electric minor mutual inductor group of output digital quantity signal is sent is sent to the standard merge cells through optical fiber; The standard merge cells carries out behind the framing being sent to through optical fiber the optical interface of No. 1 fiber optical transceiver according to IEC 61850 agreements with the data that receive, and No. 1 fiber optical transceiver converts light signal behind the electric signal to No. 1 electric Ethernet interface sending into industrial computer through netting twine;
Optical fiber transmitting-receiving interface carries out being sent to behind the framing optical interface of No. 2 fiber optical transceivers with the data that receive according to IEC 61850 agreements, and No. 2 fiber optical transceivers convert light signal behind the electric signal to No. 2 electric Ethernet interfaces sending into industrial computer through netting twine;
The analog quantity input interface inputs to the analog signals that receives the input end of the overvoltage crowbar of signal process box; The input end of analog signal of the A/D modular converter in the output terminal of overvoltage crowbar and the data collecting card links to each other, and the pci bus of data collecting card is connected with the pci bus interface of industrial computer through shielded cable;
Industrial computer is through the image data of pci bus interface image data capture card output; This industrial computer also sends the synchronizing pulse sending module that the electric pulse synchronizing signal is given data collecting card through pci bus interface; The synchronizing pulse sending module is sent the electric pulse synchronizing signal into the synchronous triggering signal input end of A/D modular converter and the synchronous triggering signal input end of light pulse expanded circuit simultaneously; The light pulse expanded circuit is extended to two-way light pulse synchronizing signal syn with the synchronous triggering signal that receives, and this two-way light pulse synchronizing signal syn is sent to the synchronous signal input end of standard merge cells and the optical synchronous signal input end of light pulse expansion interface through optical fiber respectively.
A kind of checking electronic type transformers device of the present invention is in application; Receive and dispatch interface and be connected through optical fiber by the school merge cells; Export being connected of analog signals with outside through the analog quantity input interface, realize check electronic mutual inductor by school electronic mutual inductor group.
Checking electronic type transformers device of the present invention compared with prior art has following feature and advantage:
1, the present invention can satisfy the verification requirement of the electronic mutual inductor of analog quantity output and digital quantity output, and the uncertainty of measurement level is superior to 0.05%.
2, the present invention can detect many electronic mutual inductors simultaneously, can not only improve the efficient of testing, can also the consistance and the antijamming capability of electronic mutual inductor be detected and estimate.
3, the present invention has set up the standard electric minor mutual inductor of the digital quantity output that meets the IEC61850 communications protocol, can also be used to being combined the unit and carries out performance test and evaluation.
The invention provides a kind of checking electronic type transformers device and this device that can satisfy the requirement of electronic mutual inductor Performance Detection; Realization is combined the method for testing of unit performance; Not only can carry out error checking to the electronic mutual inductor that digital quantity output and analog quantity are exported, but also can the consistance and the antijamming capability of the electronic mutual inductor of many same models be detected.
Description of drawings
Fig. 1 is the one-piece construction figure of checking electronic type transformers device of the present invention; Fig. 2 is the electrical equipment principle schematic of standard electric minor mutual inductor of the present invention; Fig. 3 is the electrical equipment principle schematic of data acquisition unit 1-3 of the present invention; Fig. 4 is the wiring schematic diagram of merge cells of the present invention when test; Fig. 5 is the wiring schematic diagram during simultaneously to the test of 3 electronic mutual inductors of the present invention.
Embodiment
Embodiment one, combination Fig. 1 specify this embodiment; The described a kind of checking electronic type transformers device of this embodiment; This calibration equipment comprises: the standard electric minor mutual inductor group 1 of output digital quantity signal, standard merge cells 2, signal process box 3, industrial computer 4, optical fiber transmitting-receiving interface 5, analog quantity input interface 6 and light pulse expansion interface 7, and said signal process box 3 comprises: No. 1 fiber optical transceiver 3-1, No. 2 fiber optical transceiver 3-2, overvoltage crowbar 3-3, data collecting card 3-4 and light pulse expanded circuit 3-5; Described data collecting card 3-4 comprises: A/D modular converter 3-4-1 and synchronizing pulse sending module 3-4-2; Said industrial computer 4 disposes No. 1 electric Ethernet interface 4-1, No. 2 electric Ethernet interface 4-2 and pci bus interface 4-3; The optical fiber serial data that the standard electric minor mutual inductor group 1 of output digital quantity signal is sent is sent to standard merge cells 2 through optical fiber; Standard merge cells 2 carries out behind the framing being sent to through optical fiber the optical interface of No. 1 fiber optical transceiver 3-1 according to IEC 61850 agreements with the data that receive, and No. 1 fiber optical transceiver 3-1 converts light signal behind the electric signal to No. 1 electric Ethernet interface 4-1 that sends into industrial computer 4 through netting twine;
The standard channel of calibration equipment is made up of 2, No. 1 fiber optical transceiver 3-1 of standard electric minor mutual inductor group 1, standard merge cells and No. 1 electric Ethernet interface 4-1 of output digital quantity signal.The optical fiber serial data that the standard electric minor mutual inductor group 1 of output digital quantity signal is sent is sent to standard merge cells 2 through optical fiber; Standard merge cells 2 carries out behind the framing being sent to through optical fiber the optical interface of No. 1 fiber optical transceiver 3-1 according to IEC 61850 agreements with the data that receive, and No. 1 fiber optical transceiver 3-1 converts light signal behind the electric signal to No. 1 electric Ethernet interface 4-1 that sends into industrial computer 4 through netting twine;
The electronic mutual inductor of calibration equipment digital quantity output by the school passage by: optical fiber transmitting-receiving 5, No. 2 fiber optical transceiver 3-2 of interface and No. 2 electric Ethernet interface 4-2 form.Output digital quantity signal by the digital quantity output terminal of school electronic mutual inductor group be connected by the digital quantity input end of school merge cells; The optical fiber transmitting-receiving interface 5 that passes through by the school merge cells carries out being sent to behind the framing optical interface of No. 2 fiber optical transceiver 3-2 with data according to IEC 61850 agreements, and No. 2 fiber optical transceiver 3-2 convert light signal behind the electric signal to No. 2 electric Ethernet interface 4-2 that send into industrial computer 4 through netting twine;
Being formed by analog quantity input interface 6, overvoltage crowbar 3-3, data collecting card 3-4 and pci bus interface 4-3 of the electronic mutual inductor of calibration equipment analog quantity output by the school passage.The input end that through analog quantity input interface 6 analog signals is inputed to the overvoltage crowbar 3-3 of signal process box 3 by school electronic mutual inductor group of output analog signals; The input end of analog signal of A/D modular converter 3-4-1 among the output terminal of overvoltage crowbar 3-3 and the data collecting card 3-4 links to each other, and the pci bus of data collecting card 3-4 is connected with the pci bus interface 4-3 of industrial computer 4 through shielded cable;
The synchronous generation passage of calibration equipment is made up of pci bus interface 4-3, data collecting card 3-4, light pulse expanded circuit 3-5, standard merge cells 2 and light pulse expansion interface 7.Industrial computer 4 is through the image data of pci bus interface 4-3 image data capture card 3-4 output; This industrial computer 4 also sends the synchronizing pulse sending module 3-4-2 that the electric pulse synchronizing signal is given data collecting card 3-4 through pci bus interface 4-3; Synchronizing pulse sending module 3-4-2 sends the electric pulse synchronizing signal into the synchronous triggering signal input end of A/D modular converter 3-4-1 and the synchronous triggering signal input end of light pulse expanded circuit 3-5 simultaneously; Light pulse expanded circuit 3-5 is extended to two-way light pulse synchronizing signal syn with the synchronous triggering signal that receives; And this two-way light pulse synchronizing signal syn is sent to the synchronous signal input end of standard merge cells 2 and the optical synchronous signal input end of light pulse expansion interface 7 through optical fiber respectively, the synchronous signal output end of light pulse expansion interface 7 be connected by the synchronous signal input end of school merge cells.
Embodiment two, combination Fig. 2 specify this embodiment; This embodiment is with the difference of embodiment one described a kind of checking electronic type transformers device; The standard electric minor mutual inductor group 1 of described output digital quantity signal comprises: standard current transformer 1-1, power pack 1-2, standard potential transformer 1-4, voltage changer 1-5 and data acquisition unit 1-3
The current signal output end of standard current transformer 1-1 connects the current signal input end of power pack 1-2, and the analog current data output end of power pack 1-2 connects the analog current data input pin of data acquisition unit 1-3; The voltage signal output end of standard potential transformer 1-4 connects the voltage signal input end of voltage changer 1-5; The aanalogvoltage data output end of voltage changer 1-5 connects the aanalogvoltage data input pin of data acquisition unit 1-3; The data output end of data acquisition unit 1-3 connects the data input pin of standard merge cells 2, and the light pulse signal output terminal of described light pulse expanded circuit 3-5 connects the light pulse signal input end of data acquisition unit 1-3.
Embodiment three, combination Fig. 3 specify this embodiment; This embodiment is that with the difference of embodiment two said data acquisition unit 1-3 comprises: programmable gain amplifier group 1-3-1, A/D converter group 1-3-2, data processor 1-3-3, logic controller group 1-3-4, configuration manager 1-3-5, electric Ethernet configuration interface 1-3-6, phototiming receiving interface 1-3-7, protocol groups frame module 1-3-8, optical Ethernet transmitting-receiving interface 1-3-9 and optical fiber serial ports transmission interface 1-3-10;
The analog voltage signal of the analog current signal of power pack 1-2 and voltage changer 1-5 is sent to programmable gain amplifier group 1-3-1 simultaneously; Programmable gain amplifier group 1-3-1 is sent to A/D converter group 1-3-2 after the analog current signal that receives is amplified according to its initial gain; A/D converter group 1-3-2 will import and be sent to data processor 1-3-3 after analog current signal converts the digital current signal into; The amplitude of the digital current signal that data processor 1-3-3 calculates according to the input digit current signal; Data processor 1-3-3 is sent to logic controller group 1-3-4 with the amplitude of the digital current signal that calculates, the gain of the digital current Signal Regulation programmable gain amplifier group 1-3-1 that logic controller group 1-3-4 obtains according to data processor 1-3-3; Programmable gain amplifier group 1-3-1 is sent to A/D converter group 1-3-2 after the analog voltage signal that receives is amplified according to its initial gain; A/D converter group 1-3-2 is to be sent to data processor 1-3-3 behind the digital voltage signal with the input analog voltage conversion of signals; The amplitude of the digital voltage signal that data processor 1-3-3 calculates according to the input digit voltage signal; Data processor 1-3-3 is sent to logic controller group 1-3-4 with the amplitude of the digital voltage signal that calculates, and the digital voltage signal that logic controller group 1-3-4 obtains according to data processor 1-3-3 is regulated the gain of programmable gain amplifier group 1-3-1; Electricity Ethernet configuration interface 1-3-6 connection is sent to configuration manager 1-3-5 with configuration information; Light pulse expanded circuit 3-5 is connected with phototiming receiving interface 1-3-7 through optical fiber synchronization pulse is sent to logic controller group 1-3-4; Logic controller group 1-3-4 is sent to configuration manager 1-3-5 with synchronization pulse; Configuration manager 1-3-5 is sent to protocol groups frame module 1-3-8 with configuration information that receives and synchronizing information; The data that protocol groups frame module 1-3-8 sends data acquisition unit group 1-3-3 according to the synchronizing information that receives are carried out framing according to IEC 61850 agreements and are sent to standard merge cells 2 through optical Ethernet transmitting-receiving interface 1-3-9, and protocol groups frame module 1-3-8 requires to carry out framing according to the configuration information that receives according to IEC 60044-8 and is sent to standard merge cells 2 with the FT3 form through optical fiber serial ports transmission interface 1-3-10.
The data processor 1-3-3 of described data acquisition unit 1-3, logic controller group 1-3-4, configuration manager 1-3-5 and protocol groups frame module 1-3-8 are realized by 1 FPGA and 1 dsp chip.
The method of testing that the checking electronic type transformers device is combined the unit performance does; The digital quantity signal that IEC 61850 agreements are satisfied in the optical Ethernet transmitting-receiving interface 1-3-9 output of the standard electric minor mutual inductor group 1 of output digital quantity signal is sent to the optical interface of No. 1 fiber optical transceiver 3-1 through optical fiber, and No. 1 fiber optical transceiver 3-1 converts behind the electric signal light signal to through netting twine access industrial computing machine 4 No. 1 electric Ethernet interface 4-1; The digital quantity signal that the FT3 form of IEC60044-8 requirement is satisfied in the optical fiber serial ports transmission interface 1-3-10 output of standard electric minor mutual inductor is sent to by the school merge cells through optical fiber; By the school merge cells digital quantity signal that receives is carried out behind the framing being sent to through optical fiber the optical interface of No. 2 fiber optical transceiver 3-2 according to IEC 61850 agreements, No. 2 fiber optical transceiver 3-2 convert behind the electric signal light signal to through netting twine access industrial computing machine 4 No. 2 electric Ethernet interface 4-2.
Verification principle of the present invention is:
(1) carry out the checking electronic type transformers that digital quantity is exported: the data message of standard channel is sent into industrial computer 4 through standard electric minor mutual inductor group 1, standard merge cells 2 and No. 1 fiber optical transceiver 3-1 of output digital quantity signal through No. 1 electric Ethernet interface 4-1; Sent into industrial computer 4 by the data message of school passage through optical fiber transmitting-receiving 5, No. 2 fiber optical transceiver 3-2 of interface and No. 2 electric Ethernet interface 4-2; The data message of standard channel and by the data message of school passage synchronously by industrial computer 4 through software control; The synchronizing pulse sending module 3-4-2 of the data collecting card 3-4 of signal process box 3 receives the software control order of industrial computer 4 and sends the electric pulse synchronizing signal; Light pulse expanded circuit 3-5 is extended to two-way light pulse synchronizing signal with the electric pulse synchronizing signal that receives; One the tunnel sends into the phototiming input port of standard merge cells 2, and one the tunnel sends into the phototiming input port of light pulse expansion interface 7; Industrial computer 4 adopts the direct method of measurement, calculates respectively by the amplitude of school electronic mutual inductor and standard mutual inductor and phase place, thereby obtains by the control information of school electronic mutual inductor.
(2) carry out the checking electronic type transformers that analog quantity is exported: the data message of standard channel is sent into industrial computer 4 through standard electric minor mutual inductor group 1, standard merge cells 2 and No. 1 fiber optical transceiver 3-1 of output digital quantity signal through No. 1 electric Ethernet interface 4-1; Passed through the input end of the overvoltage crowbar 3-3 of shielded cable input signal conditioning case 3 by the analog quantity voltage signal by the output of school electronic mutual inductor group of school analog quantity output; The output terminal of overvoltage crowbar 3-3 links to each other with the input end of the A/D modular converter 3-4-1 of data collecting card 3-4, and data collecting card 3-4 will be sent into industrial computer 4 through pci bus interface 4-3 by the data message of school passage through shielded cable; The data message of standard channel and by the data message of school passage synchronously by industrial computer 4 through software control; The electric pulse synchronizing signal is sent in the software control order of industrial computer 4; Send into the external trigger input end of A/D modular converter 3-4-1 and the input end of light pulse expanded circuit 3-5 simultaneously; Light pulse expanded circuit 3-5 is extended to two-way light pulse synchronizing signal with the electric pulse synchronizing signal that receives, and sends wherein leading up to optical fiber into the phototiming input port of light pulse expansion interface 7; Industrial computer 4 adopts the direct method of measurement, calculates respectively by the amplitude of school electronic mutual inductor and standard mutual inductor and phase place, thereby obtains by the control information of school electronic mutual inductor.
(3) combine Fig. 4 to specify and carry out the merge cells performance test: the digital quantity signal of IEC 61850 agreements is satisfied in the optical Ethernet transmitting-receiving interface 1-3-9 output of standard electric minor mutual inductor; Be sent to the optical interface of No. 1 fiber optical transceiver 3-1 through optical fiber; No. 1 fiber optical transceiver 3-1 converts behind the electric signal light signal to through netting twine access industrial computing machine 4 No. 1 electric Ethernet interface 4-1, as the data information acquisition of standard channel; The digital quantity signal of the FT3 form of IEC 60044-8 requirement is satisfied in the optical fiber serial ports transmission interface 1-3-10 output of standard electric minor mutual inductor; And be sent to optical fiber transmitting-receiving interface 5 through optical fiber; Optical fiber transmitting-receiving interface 5 carries out the digital quantity signal that receives behind the framing to be sent to through optical fiber the optical interface of No. 2 fiber optical transceiver 3-2 according to IEC 61850 agreements; No. 2 fiber optical transceiver 3-2 convert behind the electric signal light signal to through netting twine access industrial computing machine 4 No. 2 electric Ethernet interface 4-2, as by the data information acquisition of school passage; The data message of standard channel and by the data message of school passage synchronously by industrial computer 4 through software control; The synchronizing pulse sending module 3-4-2 of the data collecting card 3-4 of signal process box 3 receives the software control order of industrial computer 4 and sends the electric pulse synchronizing signal; Light pulse expanded circuit 3-5 is extended to two-way light pulse synchronizing signal with the electric pulse synchronizing signal that receives; One the tunnel sends into the phototiming receiving interface 1-3-7 of the data acquisition unit 1-3 of standard mutual inductor group 1, and one the tunnel sends into the phototiming input port of light pulse expansion interface 7; Because standard channel and by the data of school passage all from the digital quantity output of the data acquisition unit 1-3 of standard electric minor mutual inductor; And there is synchronizing signal to guarantee signal Synchronization; So calculate respectively by the amplitude and the phase place of school merge cells output information and the direct output information of standard electric minor mutual inductor through industrial computer 4, can obtain by the control information of school merge cells.
(4) combine Fig. 5 to specify many electronic mutual inductors are carried out consistance and antijamming capability detection: to detect 3 digital quantities output electronic current mutual inductors is example; Its wiring schematic diagram is as shown in Figure 5, output digital quantity signal standard electric minor mutual inductor group 1 standard electric minor mutual inductor 1-A, standard electric minor mutual inductor 1-B and standard electric minor mutual inductor 1-C respectively with output digital quantity signal by school electronic mutual inductor group A, output digital quantity signal by school electronic mutual inductor group B and output digital quantity signal sealed in same current return by school electronic mutual inductor group C; Standard channel as calibration equipment: standard electric minor mutual inductor 1-A, standard electric minor mutual inductor 1-B and standard electric minor mutual inductor 1-C are connected with standard merge cells 2 through 3 optical fiber respectively; Standard merge cells 2 merges the data message of 3 electronic mutual inductors, sends into industrial computer 4 through No. 1 fiber optical transceiver 3-1 and No. 1 electric Ethernet interface 4-1; Output digital quantity signal by school electronic mutual inductor group A, output digital quantity signal by school electronic mutual inductor group B and output digital quantity signal by school electronic mutual inductor group C respectively through 3 optical fiber be connected by the school merge cells; By the school merge cells 3 are connected by the Data Input Interface of the data message merga pass optical fiber of school electronic mutual inductor with optical fiber transmitting-receiving interface 5, optical fiber transmitting-receiving interface 5 is sent into industrial computer 4 through No. 2 fiber optical transceiver 3-2 and No. 2 electric Ethernet interface 4-2; As the electronic mutual inductor of calibration equipment digital quantity output by the school passage: the data message of standard channel and by the data message of school passage synchronously by industrial computer 4 through software control; The synchronizing pulse sending module 3-4-2 of the data collecting card 3-4 of signal process box 3 receives the software control order of industrial computer 4 and sends the electric pulse synchronizing signal; Light pulse expanded circuit 3-5 is extended to two-way light pulse synchronizing signal with the electric pulse synchronizing signal that receives; One the tunnel sends into the phototiming input port of standard merge cells 2, and one the tunnel sends into the phototiming input port of light pulse expansion interface 7; Industrial computer 4 adopts the direct method of measurement; Calculate 3 respectively by the amplitude and the phase place of school electronic mutual inductor and the accurate mutual inductor of 3 station symbols; Thereby obtain 3 by the control information of school electronic mutual inductor,, analyze 3 mutual inductor consistance and antijamming capability through comparison to 3 error informations.
The function that realizes in the face of each several part of the present invention down describes with the concrete component parameter that adopts:
(1) the standard electric minor mutual inductor of output digital quantity signal
Standard current transformer 1-1 adopts specified secondary to be output as the standard electromagnetic current transducer of the 0.01S level of 1A, and primary current is transformed to secondary current; Standard potential transformer 1-4 adopts specified secondary to be output as 0.01 grade the standard electromagnetic potential transformer of 100V, and primary voltage is transformed to secondary voltage; It is 0.01 grade the precision current mutual inductor of 1A/10mA that power pack 1-2 adopts nominal transformation ratio, and sampling resistor is 350, and temperature coefficient is 5ppm, and power pack 1-2 converts the 1A current signal of standard electromagnetic current transducer to the small voltage signal; It is 0.01 grade the accurate voltage mutual inductor of 100V/5V that voltage changer 1-5 adopts nominal transformation ratio, converts the 100V voltage signal of standard electromagnetic potential transformer to the small voltage signal;
The programmable gain amplifier group 1-3-1 of data acquisition unit 1-3 adopts the AD8555 chip of ADI company; Programmable gain amplifier group 1-3-1 can regulate enlargement factor through program; Make A/D converter group 1-3-2 full scale signal reach homogenization, improve measuring accuracy greatly; A/D converter group 1-3-2 adopts the AD7656 chip of AD company, and the chip of 16 sampling precisions of sampling simultaneously for 250kSPS six passages is accomplished the translation function of simulation small voltage to digital quantity signal; The function of data processor 1-3-3, logic controller group 1-3-4, configuration manager 1-3-5 and protocol groups frame module is realized by DSP and FPGA; It is the chip of TMS320F2812 that DSP adopts the model of TI company, and it is the chip of XC2S100-6PQ208I that FPGA adopts the model of Xilinx company; Phototiming receiving interface 1-3-7 receives the phototiming pps pulse per second signal, realizes the sampled signal synchronization of data, adopts the HFBR-2412 device of Avago company to realize; Electricity Ethernet configuration interface 1-3-6 realizes the information configuration of data acquisition unit 1-3, and its interface adopts the RJ45 interface of standard; Optical Ethernet transmitting-receiving interface is realized the data transmission of satisfying IEC 61850 agreements of data acquisition unit 1-3, adopts the AFBR-5803 device of Avago company to realize; The data of the digital quantity signal of the FT3 form that satisfies IEC 60044-8 requirement of optical fiber transmission interface realization data acquisition unit 1-3 are sent, and adopt the HFBR-1414 device of Avago company to realize.
(2) standard merge cells
The model of the Xuji Electric Co., Ltd of present embodiment accepted standard merge cells 2 is the merge cells of DMU820; Receive the digital quantity signal that satisfies the FT3 form that IEC 60044-8 requires of optical fiber serial ports transmission interface 1-3-10 output of the data acquisition unit 1-3 of the accurate electronic mutual inductor of maximum 9 station symbols; And the rs 232 serial interface signal of the accurate electronic mutual inductor of many station symbols carried out framing according to IEC 61850 agreements, externally send through the fiber optic Ethernet mouth.
(3) signal process box
No. 1 fiber optical transceiver 3-1 realizes that with No. 2 fiber optical transceiver 3-2 the optical Ethernet data-switching becomes the function of electric Ethernet data, so that industrial computer carries out data communication, adopts the HTB-1100 type fiber optical transceiver of NetLINK company; Overvoltage overvoltage crowbar 3-3, the device of employing are the TVS pipes, and protected data capture card 3-4 avoids overvoltage and impacts; Light pulse expanded circuit 3-5 receives the electric impulse signal of the clock-pulse generator 3-4-2 transmission of data collecting card; Convert electric impulse signal to light pulse signal; And be extended to 2 road light pulse signals output; For the standard channel of calibration equipment with by the school passage phototiming pps pulse per second signal is provided, adopts the HFBR-1414 device of 2 Avago companies to realize.
Data collecting card 3-4 realize to analog quantity output by the data acquisition function of school electronic mutual inductor group, adopt the PCI-6281 type M series multifunctional data collecting card of NI company, adopt pci bus and industrial computer 4 to carry out data communication, its major parameter does
1) ADC resolution: 18Bits;
2) sampling rate: 625kS/s single channel, 500kS/s hyperchannel;
3) input range: ± 10V, ± 5V, ± 2V, ± 1V, ± 0.5V, ± 0.2V, ± 0.1V, range software is optional;
4) ADC triggering mode: software trigger, hardware trigger, optional;
5) input impedance:＞10G Ω;
6) counter resolution: 32Bits;
(4) industrial computer
1) anti-electromagnetic interference (EMI): satisfy MIL-810F and IP54 standard;
2) internal memory: 1GB;
3) operating system:
XP Professional Service Pack 2;
4) interface: serial port, Dsub 9 pin plug X1
USB port, 4 pin X3, USB 2.0 editions
The LAN port, RJ-45 jack X2 (IEEE 802.3 10Base-T, IEEE802.3u 100Base-TX, IEEE 802.3ab1000Base-T).
Claims (3)
1. checking electronic type transformers device; It is characterized in that; This calibration equipment comprises: the standard electric minor mutual inductor group (1) of output digital quantity signal, standard merge cells (2), signal process box (3), industrial computer (4), optical fiber transmitting-receiving interface (5), analog quantity input interface (6) and light pulse expansion interface (7), and said signal process box (3) comprising: No. 1 fiber optical transceiver (3-1), No. 2 fiber optical transceivers (3-2), overvoltage crowbar (3-3), data collecting card (3-4) and light pulse expanded circuit (3-5); Described data collecting card (3-4) comprising: A/D modular converter (3-4-1) and synchronizing pulse sending module (3-4-2); Said industrial computer (4) disposes No. 1 electric Ethernet interface (4-1), No. 2 electric Ethernet interfaces (4-2) and pci bus interface (4-3); The synchronization pulse input end of described standard electric minor mutual inductor group (1) is connected with the synchronization pulse output terminal of optical fiber with light pulse expanded circuit (3-5)
The optical fiber serial data that the standard electric minor mutual inductor group (1) of output digital quantity signal is sent is sent to standard merge cells (2) through optical fiber; Standard merge cells (2) carries out behind the framing being sent to through optical fiber the optical interface of No. 1 fiber optical transceiver (3-1) according to IEC 61850 agreements with the data that receive, and No. 1 fiber optical transceiver (3-1) converts light signal behind the electric signal to No. 1 electric Ethernet interface (4-1) of sending into industrial computer (4) through netting twine;
Optical fiber transmitting-receiving interface (5) carries out being sent to behind the framing optical interface of No. 2 fiber optical transceivers (3-2) with the data that receive according to IEC 61850 agreements, and No. 2 fiber optical transceivers (3-2) convert light signal behind the electric signal to No. 2 electric Ethernet interfaces (4-2) of sending into industrial computer (4) through netting twine;
Analog quantity input interface (6) inputs to the analog signals that receives the input end of the overvoltage crowbar (3-3) of signal process box (3); The output terminal of overvoltage crowbar (3-3) links to each other with the input end of analog signal of the A/D modular converter (3-4-1) of data collecting card (3-4), and the pci bus of data collecting card (3-4) is connected with the pci bus interface (4-3) of industrial computer (4) through shielded cable;
Industrial computer (4) is through the image data of pci bus interface (4-3) image data capture card (3-4) output; This industrial computer (4) also sends the synchronizing pulse sending module (3-4-2) that the electric pulse synchronizing signal is given data collecting card (3-4) through pci bus interface (4-3); Synchronizing pulse sending module (3-4-2) is sent the electric pulse synchronizing signal into the synchronous triggering signal input end of A/D modular converter (3-4-1) and the synchronous triggering signal input end of light pulse expanded circuit (3-5) simultaneously; Light pulse expanded circuit (3-5) is extended to two-way light pulse synchronizing signal syn with the synchronous triggering signal that receives, and this two-way light pulse synchronizing signal syn is sent to the synchronous signal input end of standard merge cells (2) and the optical synchronous signal input end of light pulse expansion interface (7) through optical fiber respectively.
2. a kind of checking electronic type transformers device according to claim 1; It is characterized in that; The standard electric minor mutual inductor group (1) of described output digital quantity signal comprises: standard current transformer (1-1), power pack (1-2), standard potential transformer (1-4), voltage changer (1-5) and data acquisition unit (1-3)
The current signal output end of standard current transformer (1-1) connects the current signal input end of power pack (1-2), and the analog current data output end of power pack (1-2) connects the analog current data input pin of data acquisition unit (1-3); The voltage signal output end of standard potential transformer (1-4) connects the voltage signal input end of voltage changer (1-5); The aanalogvoltage data output end of voltage changer (1-5) connects the aanalogvoltage data input pin of data acquisition unit (1-3); The data output end of data acquisition unit (1-3) connects the data input pin of standard merge cells (2), and the light pulse signal output terminal of described light pulse expanded circuit (3-5) connects the light pulse signal input end of data acquisition unit (1-3).
3. a kind of checking electronic type transformers device according to claim 2; It is characterized in that said data acquisition unit (1-3) comprising: programmable gain amplifier group (1-3-1), A/D converter group (1-3-2), data processor (1-3-3), logic controller group (1-3-4), configuration manager (1-3-5), electric Ethernet configuration interface (1-3-6), phototiming receiving interface (1-3-7), protocol groups frame module (1-3-8), optical Ethernet transmitting-receiving interface (1-3-9) and optical fiber serial ports transmission interface (1-3-10);
The analog voltage signal of the analog current signal of power pack (1-2) and voltage changer (1-5) is sent to programmable gain amplifier group (1-3-1) simultaneously; Programmable gain amplifier group (1-3-1) is sent to A/D converter group (1-3-2) after the analog current signal that receives is amplified according to its initial gain; A/D converter group (1-3-2) will be imported and be sent to data processor (1-3-3) after analog current signal converts the digital current signal into; The amplitude of the digital current signal that data processor (1-3-3) calculates according to the input digit current signal; Data processor (1-3-3) is sent to logic controller group (1-3-4) with the amplitude of the digital current signal that calculates, the gain of the digital current Signal Regulation programmable gain amplifier group (1-3-1) that logic controller group (1-3-4) obtains according to data processor (1-3-3); Programmable gain amplifier group (1-3-1) is sent to A/D converter group (1-3-2) after the analog voltage signal that receives is amplified according to its initial gain; A/D converter group (1-3-2) is to be sent to data processor (1-3-3) behind the digital voltage signal with the input analog voltage conversion of signals; The amplitude of the digital voltage signal that data processor (1-3-3) calculates according to the input digit voltage signal; Data processor (1-3-3) is sent to logic controller group (1-3-4) with the amplitude of the digital voltage signal that calculates, and logic controller group (1-3-4) is regulated the gain of programmable gain amplifier group (1-3-1) according to the digital voltage signal that data processor (1-3-3) obtains; Electricity Ethernet configuration interface (1-3-6) connection is sent to configuration manager (1-3-5) with configuration information; Light pulse expanded circuit (3-5) is connected with phototiming receiving interface (1-3-7) through optical fiber synchronization pulse is sent to logic controller group (1-3-4); Logic controller group (1-3-4) is sent to configuration manager (1-3-5) with synchronization pulse; Configuration manager (1-3-5) is sent to protocol groups frame module (1-3-8) with configuration information that receives and synchronizing information; The data that protocol groups frame module (1-3-8) sends data acquisition unit group 1-3-3 according to the synchronizing information that receives are carried out framing according to IEC 61850 agreements and are sent to standard merge cells (2) through optical Ethernet transmitting-receiving interface (1-3-9), and protocol groups frame module (1-3-8) requires to carry out framing according to the configuration information that receives according to IEC 60044-8 and is sent to standard merge cells (2) with the FT3 form through optical fiber serial ports transmission interface (1-3-10).
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135013A (en) * | 2012-12-28 | 2013-06-05 | 辽宁省电力有限公司 | Detecting and evaluating system of data acquisition unit |
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| CN103472273A (en) * | 2013-09-11 | 2013-12-25 | 国家电网公司 | Etalon of electronic voltage mutual inductor and verifying structures of electronic voltage mutual inductor |
| CN103983930A (en) * | 2014-05-05 | 2014-08-13 | 国家电网公司 | Electronic transformer harmonic calibrator calibration device and method |
| CN104316891A (en) * | 2014-09-29 | 2015-01-28 | 许继电气股份有限公司 | Electronic mutual inductor performance real-time monitoring system and method |
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| CN110018435A (en) * | 2019-02-21 | 2019-07-16 | 国网山东省电力公司临沂供电公司 | Electronic mutual inductor calibration system and calibration method |
| CN110161446A (en) * | 2019-04-25 | 2019-08-23 | 国网电力科学研究院武汉南瑞有限责任公司 | Relay protection device for high-voltage dc voltage mutual inductor |
| CN110456300A (en) * | 2019-09-17 | 2019-11-15 | 贵州电网有限责任公司 | A kind of acquisition unit detection device and method based on adaptive comparison analytical technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203666Y (en) * | 2008-06-06 | 2009-03-04 | 北京浩霆光电技术有限责任公司 | Multifunctional mutual-inductor tester |
| CN101718856A (en) * | 2009-12-11 | 2010-06-02 | 中国电力科学研究院 | Calibration system of digital quantity input type electric energy meter |
| CN201569736U (en) * | 2009-12-11 | 2010-09-01 | 中国电力科学研究院 | Watt-hour meter calibration device |
-
2012
- 2012-03-31 CN CN201210093094.2A patent/CN102621514B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203666Y (en) * | 2008-06-06 | 2009-03-04 | 北京浩霆光电技术有限责任公司 | Multifunctional mutual-inductor tester |
| CN101718856A (en) * | 2009-12-11 | 2010-06-02 | 中国电力科学研究院 | Calibration system of digital quantity input type electric energy meter |
| CN201569736U (en) * | 2009-12-11 | 2010-09-01 | 中国电力科学研究院 | Watt-hour meter calibration device |
Non-Patent Citations (1)
| Title |
|---|
| 王健 等: "基于幅值谱频谱标正的电子式互感器检验方法", 《仪器仪表学报》, vol. 30, no. 10, 31 October 2009 (2009-10-31), pages 239 - 242 * |
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