CN209182487U - A kind of electronic mutual inductor angular difference standard set-up - Google Patents
A kind of electronic mutual inductor angular difference standard set-up Download PDFInfo
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- CN209182487U CN209182487U CN201821686819.8U CN201821686819U CN209182487U CN 209182487 U CN209182487 U CN 209182487U CN 201821686819 U CN201821686819 U CN 201821686819U CN 209182487 U CN209182487 U CN 209182487U
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Abstract
The utility model discloses a kind of electronic mutual inductor angular difference standard set-ups.The utility model includes optical fiber network interface, ethernet PHY chip, synchronization module, D/A module, field programmable gate array FPGA, microcontroller and human-computer interaction module；The field programmable gate array FPGA with human-computer interaction module for communicating, receive the instruction that human-computer interaction module is sent, the digital message based on IEC61850 agreement is exported according to instruction control synchronization module output synchronization signal, control PHY chip, it configures microcontroller and generates Wave data, it receives the Wave data that microcontroller generates to export to D/A module, for generating corresponding analog waveform.The utility model records the time difference of square-wave signal and synchronization signal by using high frequency clock to determine delay time existing for artificial circuit part, converts angular difference for the delay time by data processing, realizes the transmitting of angular difference accurate stable.
Description
Technical field
The utility model belongs to intelligent substation the digitized measurement device field, especially a kind of electronic mutual inductor angular difference
Standard set-up.
Background technique
Conditional electronic formula electric energy metered system is made of electromagnetic transformer and electronic electric energy meter, and secondary device largely makes
With cable transmission signal, error component is numerous.Different from traditional simulation electric energy metered system, digitalized electric energy metering system
The change of essence has occurred in overall architecture, and whole system is by electronic current mutual inductor (ECT), electronic type voltage transformer
(EVT), combining unit and digitalized electrical energy meter are constituted, and electronic mutual inductor (containing combining unit) is instead of conventional electromagnetic mutual inductance
Device, fiber optic communication are also replaced by digitalized electrical energy meter instead of a large amount of wire and cable, electronic electric energy meter.Digitalized electric energy meter
Measurer have insulation system it is simple, without explosion, without second open circuit, dangerous, digital signal is shared more easy, carrying load ability is by force etc.
Advantage.
An important link of the intelligent substation as smart grid has obtained promoting construction throughout the country, have certainly
It is dynamic to complete the functions such as information collection, measurement, control, protection, metering and monitoring.The digitized measurement system is as intelligent substation
Important component, to measure certain point electric energy as target, is electronic mutual inductor or biography according to mutual inductor to be digitized as feature
System electromagnetic transformer, is divided into totally digitilized metering device and Semi-digital metering device.Based on electronic mutual inductor, merge list
First, digitalized electrical energy meter technology digitalized electric energy metering system is widely applied in intelligent substation.
Currently, a kind of method can carry out the transmitting of accurate stable to electronic mutual inductor angular difference not yet.
Utility model content
For the precision problem of transmission that electronic mutual inductor angular difference in digitalized electric energy metering system detects, the utility model
A kind of electronic mutual inductor angular difference standard set-up is provided, by using high frequency clock record square-wave signal and synchronization signal when
Between difference determine delay time existing for artificial circuit part, angular difference converted for the delay time by data processing, thus
Realize the transmitting of angular difference accurate stable.
For this purpose, the utility model adopts the following technical solutions: a kind of electronic mutual inductor angular difference standard set-up comprising
Optical fiber network interface, ethernet PHY chip, synchronization module, D/A module, field programmable gate array FPGA, microcontroller and
Human-computer interaction module；
The optical fiber network interface is used to receive the datagram message signal based on IEC61850 agreement of PHY chip output,
And convert the electrical signal to optical signal output electron formula mutual-inductor tester；
The ethernet PHY chip is used to receive the data of on-site programmable gate array FPGA, and output is based on
The datagram message signal of EIC61850 agreement gives optical fiber network interface；
The synchronization module is converted into for receiving the electric synchronization signal that field programmable gate array FPGA is sent
Optical synchronous signal is output to electronic transducer calibration instrument, or directly exports electric synchronization signal to oscillograph；
The D/A module is used to receive the control signal and digital signal of field programmable gate array FPGA, according to control
Corresponding digital signal is converted into analog signal output electron formula mutual-inductor tester or oscillograph by signal processed；
The field programmable gate array FPGA receives human-computer interaction module hair for communicating with human-computer interaction module
The instruction sent exports the number based on IEC61850 agreement according to instruction control synchronization module output synchronization signal, control PHY chip
Word message, configuration microcontroller generate Wave data, receive the Wave data that microcontroller generates and export to D/A module,
For generating corresponding analog waveform；
The microcontroller is used to receive the configuration information of field programmable gate array FPGA, and according to finger
Generation Wave data is enabled to be issued to field programmable gate array FPGA.
Supplement as above-mentioned technical proposal, the inside field programmable gate array FPGA generate serial ports control
Device, FSMC bus control unit, synchronization module controller, MII interface controller, DA controller, edge triggered flip flop and high-frequency count
Device；
The serial ports controller for communicate with human-computer interaction module, receive human-computer interaction module transmission instruction and on
Pass result data；For communicating with microcontroller, field programmable gate array FPGA will be configured FSMC bus control unit
Information passes to microcontroller by FSMC bus, and microcontroller calculates the digital signal sequence of waveform according to configuration information
Column, which is passed on field programmable gate array FPGA by FSMC bus；Synchronization module controller
The different types of synchronization signal of synchronization module output is controlled simultaneously for providing synchronization signal to high-frequency counter；MII interface control
Device processed is used to communicate with PHY chip, exports the digital message based on IEC61850 agreement；DA controller is for sending Wave data
To D/A module, controls D/A module and carry out digital-to-analogue conversion, export corresponding analog waveform；Edge triggered flip flop is defeated for receiving D/A module
Square-wave signal out generates trigger signal to high-frequency counter when detecting square wave rising edge；High-frequency counter is same for recording
The time difference for walking signal and edging trigger signal, result data is sent to human-computer interaction module by serial ports controller.
Supplement as above-mentioned technical proposal, the human-computer interaction module are equipped with Windows embedded OS
Portable device, have human-computer interaction, under issue a command to field programmable gate array FPGA and display result information function
Energy.
The utility model has the advantage that as follows: the utility model by using high frequency clock record square-wave signal with
The time difference of synchronization signal determines delay time existing for artificial circuit part, is converted the delay time by data processing
For angular difference, to realize the angular difference transmitting of accurate stable.
Detailed description of the invention
Fig. 1 is the principles of the present invention block diagram.
Specific embodiment
The utility model is described in further detail with specific embodiment with reference to the accompanying drawings of the specification.
As shown in Figure 1, a kind of electronic mutual inductor angular difference standard set-up, including it is optical fiber network interface, ethernet PHY chip, same
Walk module, D/A module, field programmable gate array FPGA and microcontroller, human-computer interaction module.
Optical fiber network interface: using the AFBR-5803 optical fiber interface of AVAGO company, for receiving the base of PHY chip module output
In the datagram message signal of IEC61850 agreement, and convert the electrical signal to optical signal output electron formula mutual-inductor tester
Equal calibration equipments.
Ethernet PHY chip: existing by MII interface using the DP83640 Industrial Ethernet PHY chip of TI company
The digital message data of field programmable gate array FPGA exports the datagram message signal based on EIC61850 agreement to optical network
Mouthful.
Synchronization module: using the HFBR-1414 series fibre transmitter of AVAGO company；It is patrolled for receiving field-programmable
The electric synchronization signal that gate array FPGA is sent is collected, optical synchronous signal is translated into and is output to electronic transducer calibration instrument, or
Person directly exports electric synchronization signal to oscillograph.
D/A module: D/A converting circuit is formed using the AD5546 and high speed amplifier of AD company, can be compiled for receiving scene
Corresponding digital signal is converted into simulation letter according to control signal by the control signal and digital signal of journey logic gate array FPGA
Number it is output to the equipment such as electronic transducer calibration instrument or oscillograph.
Field programmable gate array FPGA: using the high-performance FPGA of Intel Company, serial ports is generated inside FPGA
Controller, FSMC bus control unit, synchronization module controller, MII interface controller, DA controller, edge triggered flip flop and high frequency
Counter.Wherein, serial ports controller receives human-computer interaction module and gives the instruction come and knot for communicating with human-computer interaction module
Fruit data upload；For FSMC bus control unit for communicating with microcontroller, FPGA passes to configuration information by FSMC bus
Microcontroller, microcontroller calculate the digital signal sequences of waveform according to configuration information, by the digital signal sequences
It is passed on field programmable gate array FPGA by FSMC bus；Synchronization module controller is used to provide to high-frequency counter
Synchronization signal, while controlling synchronization module and exporting different types of synchronization signal；MII interface controller is used for logical with PHY chip
News export the digital message based on IEC61850 agreement；DA controller is used to for Wave data to be sent to D/A module, controls D/A module
Digital-to-analogue conversion is carried out, corresponding analog waveform is exported；Edge triggered flip flop is used to receive the square-wave signal of D/A module output, detects
Trigger signal is generated when square wave rising edge to high-frequency counter；High-frequency counter is for recording synchronism signal and edging trigger signal
Time difference, result is sent to human-computer interaction module by serial ports controller.
Microcontroller:, can for receiving scene using the STM32F407 Series of MCU of ST Microelectronics
The configuration information of programmed logic gate array FPGA, and Wave data is generated according to instruction and is issued to field programmable gate array
FPGA。
Human-computer interaction module: the portable device equipped with Windows embedded OS has human-computer interaction function.
Human-computer interaction module is connect by serial ports with field programmable gate array FPGA, for sending instruction and data after receiving.
Obviously, above-described embodiment is merely examples for clearly illustrating the present invention, and is not to this reality
With the restriction of novel embodiment.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And these
Belong to obvious changes or variations that the spirit of the utility model is extended out still in the protection scope of the utility model
In.
Claims (3)
1. a kind of electronic mutual inductor angular difference standard set-up, which is characterized in that including optical fiber network interface, ethernet PHY chip, synchronization
Module, D/A module, field programmable gate array FPGA, microcontroller and human-computer interaction module；
The optical fiber network interface is used to receive the datagram message signal based on IEC61850 agreement of PHY chip output, and will
Electric signal is converted into optical signal output electron formula mutual-inductor tester；
The ethernet PHY chip is used to receive the data of on-site programmable gate array FPGA, and output is assisted based on EIC61850
The datagram message signal of view gives optical fiber network interface；
To be converted into light same for receiving the electric synchronization signal that field programmable gate array FPGA is sent for the synchronization module
Step signal is output to electronic transducer calibration instrument, or directly exports electric synchronization signal to oscillograph；
The D/A module is used to receive the control signal and digital signal of field programmable gate array FPGA, is believed according to control
Number corresponding digital signal is converted into analog signal output electron formula mutual-inductor tester or oscillograph；
The field programmable gate array FPGA receives what human-computer interaction module was sent for communicating with human-computer interaction module
Instruction exports the datagram based on IEC61850 agreement according to instruction control synchronization module output synchronization signal, control PHY chip
Text, configuration microcontroller generate Wave data, receive the Wave data that microcontroller generates and export to D/A module, are used for
Generate corresponding analog waveform；
The microcontroller is used to receive the configuration information of field programmable gate array FPGA, and is given birth to according to instruction
Field programmable gate array FPGA is issued at Wave data.
2. electronic mutual inductor angular difference standard set-up according to claim 1, which is characterized in that the field-programmable
Generated inside logic gate array FPGA serial ports controller, FSMC bus control unit, synchronization module controller, MII interface controller,
DA controller, edge triggered flip flop and high-frequency counter；
The serial ports controller receives the instruction and upload knot that human-computer interaction module is sent for communicating with human-computer interaction module
Fruit data；FSMC bus control unit with microcontroller for communicating, and field programmable gate array FPGA is by configuration information
Microcontroller is passed to by FSMC bus, microcontroller calculates the digital signal sequences of waveform according to configuration information,
The digital signal sequences are passed on field programmable gate array FPGA by FSMC bus；Synchronization module controller is used for
Synchronization signal, which is provided, to high-frequency counter controls the different types of synchronization signal of synchronization module output simultaneously；MII interface controller
For communicating with PHY chip, the digital message based on IEC61850 agreement is exported；DA controller is used to Wave data being sent to DA
Module, control D/A module carry out digital-to-analogue conversion, export corresponding analog waveform；Edge triggered flip flop is used to receive D/A module output
Square-wave signal generates trigger signal to high-frequency counter when detecting square wave rising edge；High-frequency counter is believed for recording synchronism
Time difference number with edging trigger signal, result data is sent to human-computer interaction module by serial ports controller.
3. electronic mutual inductor angular difference standard set-up according to claim 1 or 2, which is characterized in that the man-machine friendship
Mutual module is the portable device equipped with Windows embedded OS, have human-computer interaction, under issue a command to scene and can compile
Journey logic gate array FPGA and display result information function.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821686819.8U CN209182487U (en) | 2018-10-18 | 2018-10-18 | A kind of electronic mutual inductor angular difference standard set-up |
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| CN201821686819.8U CN209182487U (en) | 2018-10-18 | 2018-10-18 | A kind of electronic mutual inductor angular difference standard set-up |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061540A (en) * | 2018-10-18 | 2018-12-21 | 国网浙江省电力有限公司电力科学研究院 | Electronic transformer angular difference standard device |
-
2018
- 2018-10-18 CN CN201821686819.8U patent/CN209182487U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061540A (en) * | 2018-10-18 | 2018-12-21 | 国网浙江省电力有限公司电力科学研究院 | Electronic transformer angular difference standard device |
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Effective date of registration: 20210220 Address after: 311100 Building 5, 138 Yunlian Road, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: Marketing service center of State Grid Zhejiang Electric Power Co., Ltd Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: Hangzhou Yineng Energy Retrenchment Technology Co. Patentee after: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Patentee after: NINGBO SUNRISE INSTRUMENTS Co.,Ltd. Address before: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane Patentee before: ELECTRIC POWER SCIENTIFIC RESEARCH INSTITUTE OF STATE GRID ZHEJIANG ELECTRIC POWER Co.,Ltd. Patentee before: STATE GRID CORPORATION OF CHINA Patentee before: Hangzhou Yineng Energy Retrenchment Technology Co. Patentee before: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Patentee before: NINGBO SUNRISE INSTRUMENTS Co.,Ltd. |