CN206584023U - A kind of excitation system controls angle measuring device - Google Patents
A kind of excitation system controls angle measuring device Download PDFInfo
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- CN206584023U CN206584023U CN201720329296.0U CN201720329296U CN206584023U CN 206584023 U CN206584023 U CN 206584023U CN 201720329296 U CN201720329296 U CN 201720329296U CN 206584023 U CN206584023 U CN 206584023U
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Abstract
The utility model is related to a kind of excitation system control angle measuring device, the problem of can effectively solving precise electric energy measuring table electricity be poor during rotation at the scene, technical scheme is, control circuit including housing and in housing, circuit is controlled to include voltage acquisition module, pulse collection module, continuous recording module, synchronous circuit and controller, the output end of voltage acquisition module is connected through the first A/D modular converters with the input of synchronous circuit, the output end of pulse collection module is connected through the 2nd A/D modular converters with the input of synchronous circuit, the output end of synchronous circuit is connected with the input of controller, the output end of controller is connected with the input of continuous recording module, the output end of continuous recording module is connected with signal output port, the utility model improves the resolution ratio of measuring accuracy and the test waveform of excitation con-trol pulse, considerably increase the computational accuracy of excitation system pilot angle, and due to directly preserving the picture file of output waveform, using simple, it is convenient.
Description
Technical field
The utility model is related to a kind of generator excited system control angle measuring device, and the generator for being mainly used in power plant is encouraged
Measurement, recording and the experiment of magnetic system pilot angle.
Background technology
Routine after generator excited system open loop low current testing experiment is overhauled as power generator excitation system is tried
Project is tested, for testing and judging whether excitation system is normal, by measuring the waveform of direct current output, excitation system is directly judged
With the presence or absence of failure.
Mainly have two kinds in power plant's excitation system open loop low current testing experiment method at present, one kind using three phase mains and
The test of oscillograph method, three phase mains and oscillograph are integrated into excitation open loop low current test instrument and tested by one kind.
It is extremely inconvenient, it is necessary to several kinds of instrument and equipments, Er Qiexu that above-mentioned method of testing has the drawback that the first is used
Will very long cable, judge that the failure of excitation system is not also directly perceived.Second of device, intuitively can judge excitation by figure
The failure of system, but it lacks the measurement option of control pulse, it is impossible to and Continuous Observation controls the waveform of pulse, further, since
Lack the measurement synchronous circuit of three-phase output and pilot angle in measurement, excitation system pilot angle calculates inaccurate.Output waveform is not
Can Continuous Observation.
The content of the invention
For above-mentioned situation, to overcome the defect of prior art, the purpose of the utility model is just to provide a kind of excitation system
System control angle measuring device, can effectively solve the change of Continuous Observation excitation rectified waveform, improve the meter of excitation system pilot angle
Precision is calculated, while the problem of increasing the measurement of control pulse, display and Storage Item.
The technical scheme that the utility model is solved is, a kind of excitation system controls angle measuring device, including housing and is mounted in
Voltage acquisition port, pulse collection port and signal output port are respectively arranged with control circuit in housing, housing, is controlled
Circuit includes voltage acquisition module, pulse collection module, continuous recording module, synchronous circuit and controller, voltage acquisition module
Input be connected with voltage acquisition port, output end is connected through the first A/D modular converters with the input of synchronous circuit, pulse
The input of acquisition module is connected with pulse collection port, input of the output end through the 2nd A/D modular converters and synchronous circuit
It is connected, the output end of synchronous circuit is connected with the input of controller, the input of the output end of controller and continuous recording module
End is connected, and the output end of continuous recording module is connected with signal output port.
Described synchronous circuit includes transformer PT, comparator U1, photoelectrical coupler U2, transformer PT 2 inputs
The output end with the first A/D modular converters and the 2nd A/D modular converters is connected respectively, and a transformer PT output end connects respectively
Resistance R1 one end and electric capacity C1 one end, the electric capacity C1 other end difference connecting resistance R1 other end, resistance R2 one end, electricity
Hold C2 one end, diode D1 positive pole, diode D2 negative pole and comparator U1 reverse input end, the resistance R2 other end
Respectively with transformer PT another output end, the electric capacity C2 other end, diode D1 negative pole, diode D2 positive pole and electricity
The one end for hindering R3 is connected, altogether end ground connection, resistance R3 other end difference connecting resistance R4 one end and comparator U1 input in the same direction
End, the resistance R4 other end connects 2 inputs, comparator U1 output end and the resistance R5 of NAND gate one end, resistance respectively
The R5 other end is connected with comparator U1 cathode power supply end, the negative power supply at the common end and comparator U1 of resistance R5 and comparator
End is connected as 2 pulse output ends with the input of controller, the output end of NAND gate and photoelectrical coupler U2 input
It is connected, photoelectrical coupler U2 two output ends are connected as 2 voltage output ends with the input of controller, constitutes voltage letter
Number and pulse signal synchronization structure.
The utility model structure novel and unique, advantages of simple, easily production, cost is low, small in the open loop for carrying out excitation system
When Current experiments are tested, the resolution ratio of measuring accuracy and the test waveform of excitation con-trol pulse is improved, excitation is considerably increased
The computational accuracy of system pilot angle, and due to directly preserving the picture file of output waveform, using simple, conveniently, carry significantly
The high efficiency of excitation system open loop low current experiment, reduces the difficulty of experiment test, easy to use, effect is good, there is good
Volume social and economic benefit.
Brief description of the drawings
Fig. 1 is the utility model shell structure schematic diagram.
Fig. 2 is the connection frame figure that the utility model controls circuit.
Fig. 3 is the circuit theory diagrams of the utility model synchronous circuit.
Embodiment
Embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing.
Provided by Fig. 1-3, the utility model includes setting respectively on housing and the control circuit in housing, housing 1
There are voltage acquisition port 2, pulse collection port 3 and signal output port 4, control circuit includes voltage acquisition module, pulse and adopted
Collect module, continuous recording module, synchronous circuit and controller, the input of voltage acquisition module is connected with voltage acquisition port 2,
Output end is connected through the first A/D modular converters with the input of synchronous circuit, the input and pulse collection of pulse collection module
Port 3 is connected, and output end is connected through the 2nd A/D modular converters with the input of synchronous circuit, the output end of synchronous circuit and control
The input of device processed is connected, and the output end of controller is connected with the input of continuous recording module, the output of continuous recording module
End is connected with signal output port 4.
To ensure using effect, described synchronous circuit includes transformer PT, comparator U1, photoelectrical coupler U2, transformation
Output end of device PT 2 inputs respectively with the first A/D modular converters and the 2nd A/D modular converters is connected, transformer PT's
One output end distinguishes connecting resistance R1 one end and electric capacity C1 one end, and electric capacity C1 other end difference connecting resistance R1's is another
End, resistance R2 one end, electric capacity C2 one end, diode D1 positive pole, diode D2 negative pole and comparator U1 it is reverse defeated
Enter end（3 pin）, the resistance R2 other end respectively with transformer PT another output end, the electric capacity C2 other end, diode D1
Negative pole, diode D2 positive pole be connected with resistance R3 one end, end ground connection altogether, resistance R3 other end difference connecting resistance R4's
One end and comparator U1 input in the same direction（2 pin）, the resistance R4 other end connects 2 inputs, comparators of NAND gate respectively
U1 output end（1 pin）With resistance R5 one end, the resistance R5 other end and comparator U1 cathode power supply end（4 pin）It is connected,
The negative electricity source at the common end and comparator U1 of resistance R5 and comparator（5 pin）It is used as the defeated of 2 pulse output ends and controller
Enter end to be connected, the output end of NAND gate is connected with photoelectrical coupler U2 input, photoelectrical coupler U2 two output ends are made
It is connected for 2 voltage output ends with the input of controller, constitutes the synchronization structure of voltage signal and pulse signal, be mainly used in
The AC and DC voltage signal of collection aligns and synchronous with pulse signal.
Described signal output port 4 is connected with computer, constitutes display, the storage knot of voltage signal and pulse signal
Structure.
Described voltage acquisition port 2 is connected with the AC and DC voltage output end of excitation rectifier bridge, pulse collection port 3
It is connected with the pulse output end of excitation rectifier bridge, constitutes the signal acquisition structure of voltage signal and pulse signal.
Described controller is connected with the wireless communication module in housing, constitutes remote transmission structure.
Described housing is square or circle.
Described voltage acquisition module is commercially available prod（Prior art）, such as Mianyang Weibo Electronic Co., Ltd.'s life
AC-DC parameter acquisition module of production and sale etc., it is mainly used in collection measurement excitation rectifier bridge ac input signal, excitation
Rectifier bridge direct-flow output signal, and can be combined with the output pulse of synchronous circuit, for subsequently calculating pilot angle, while being used as company
The basic data of continuous recording and display waveform.
Described pulse collection module is commercially available prod（Prior art）, such as the new limited public affairs of robot control system(RCS) of Linkage in Shenzhen
The MD44-3 series of pulses acquisition control modules produced and sold are taken charge of, various digital quantities, the combination extension of analog quantity can be realized
Collection, can control the waveform parameter of pulse with high speed acquisition excitation system.
Described continuous recording module is commercially available prod（Prior art）, such as the Co., Ltd's production of Shenyang health wound electromechanics and pin
The serial oscillography sampling modules of AP11 sold, by the alternating current-direct current waveform of the excitation system collected and the output impulse wave of impulse circuit
Shape output display is on the display of calculator.
Described controller is commercially available prod（Prior art）, such as model TMS320F2812 dsp chip can be compared with
Massive store voltage acquisition module and the data of pulse collection module collection, while calculating amplitude, average value and the control of voltage
Angle processed, and computer is sent in time, and show on a computer display.
The first described A/D modular converters and the 2nd A/D modular converters are commercially available prod（Prior art）, such as model
AD606 A/D modular converters；
Described wireless communication module is the commercially available conventional wireless connection module such as wifi, infrared, can be passed through with terminal
Wireless signal is connected, and is carried out data transmission and is shown, terminal is mobile phone, ipad, notebook computer etc..
The utility model in use, voltage acquisition port 2 is connected with the AC and DC voltage output end of excitation rectifier bridge,
Pulse collection port 3 is connected with the pulse output end of excitation rectifier bridge, and signal output port 4 is connected with computer, voltage acquisition
Excitation output signal after the AC and DC voltage parameter of module collection excitation rectification bridge output end and rectification, pulse collection module
The output pulse of excitation rectifier bridge is gathered simultaneously, after data above is by A/D modular converters, converts analog signals into digital letter
Number input synchronous circuit, synchronous circuit is alignd the AC and DC voltage signal of collection and synchronous with pulse signal, then will be same
Data input controller after step, controller can be with larger capacity data storage, while calculating amplitude, average value and the control of voltage
Angle processed, and continuous recording module is output to, the data most collected at last are sent to calculating in the way of FIFO (FIFO)
In the hard disk of machine, computer can show the alternating current-direct current waveform of excitation system and the output pulse waveform of impulse circuit, and can lead to
USB interface deposit extrapolation USB flash disk is crossed, and test report is exported on computers, or carries out by way of wireless signal data biography
Defeated, compared with prior art, the utility model structure novel and unique, advantages of simple, easily production, cost is low, is carrying out excitation system
During the open loop low current experiment test of system, the resolution ratio of measuring accuracy and the test waveform of excitation con-trol pulse is improved, significantly
The computational accuracy of excitation system pilot angle is added, and due to directly preserving the picture file of output waveform, uses simple, side
Just, the efficiency of excitation system open loop low current experiment is substantially increased, the difficulty of experiment test, easy to use, structure is reduced
It is exquisite flexible, installation can be quickly connected, easy to use, effect is good, there is good social and economic benefit.
Claims (6)
1. a kind of excitation system controls angle measuring device, including housing and the control circuit in housing, it is characterised in that shell
Body（1）On be respectively arranged with voltage acquisition port（2）, pulse collection port（3）And signal output port（4）, control circuit bag
Include voltage acquisition module, pulse collection module, continuous recording module, synchronous circuit and controller, the input of voltage acquisition module
End and voltage acquisition port（2）It is connected, output end is connected through the first A/D modular converters with the input of synchronous circuit, and pulse is adopted
Collect input and the pulse collection port of module（3）It is connected, input of the output end through the 2nd A/D modular converters and synchronous circuit
It is connected, the output end of synchronous circuit is connected with the input of controller, the input of the output end of controller and continuous recording module
End is connected, the output end and signal output port of continuous recording module（4）It is connected.
2. excitation system according to claim 1 controls angle measuring device, it is characterised in that described synchronous circuit includes
Transformer PT, comparator U1, photoelectrical coupler U2, transformer PT 2 inputs respectively with the first A/D modular converters and second
The output end of A/D modular converters is connected, a transformer PT output end difference connecting resistance R1 one end and electric capacity C1 one end,
The electric capacity C1 other end difference connecting resistance R1 other end, resistance R2 one end, electric capacity C2 one end, diode D1 positive pole,
Diode D2 negative pole and comparator U1 reverse input end, the resistance R2 other end are exported with another of transformer PT respectively
End, the electric capacity C2 other end, diode D1 negative pole, diode D2 positive pole are connected with resistance R3 one end, altogether end ground connection, electricity
Hinder R3 other end difference connecting resistance R4 one end and comparator U1 input in the same direction, the resistance R4 other end connect respectively with it is non-
2 inputs of door, comparator U1 output end and resistance R5 one end, the resistance R5 other end and comparator U1 positive pole electricity
Source is connected, and the negative electricity source at the common end and comparator U1 of resistance R5 and comparator is used as 2 pulse output ends and controller
Input be connected, the output end of NAND gate is connected with photoelectrical coupler U2 input, and two of photoelectrical coupler U2 export
End is connected as 2 voltage output ends with the input of controller, constitutes the synchronization structure of voltage signal and pulse signal.
3. excitation system according to claim 1 controls angle measuring device, it is characterised in that described signal output port
（4）It is connected with computer, constitutes display, the memory structure of voltage signal and pulse signal.
4. excitation system according to claim 1 controls angle measuring device, it is characterised in that described voltage acquisition port
（2）It is connected with the AC and DC voltage output end of excitation rectifier bridge, pulse collection port（3）Pulse with excitation rectifier bridge is exported
End is connected, and constitutes the signal acquisition structure of voltage signal and pulse signal.
5. excitation system according to claim 1 controls angle measuring device, it is characterised in that described controller is with being mounted in
Wireless communication module in housing is connected, and constitutes remote transmission structure.
6. excitation system according to claim 1 controls angle measuring device, it is characterised in that described housing to be square or
It is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720329296.0U CN206584023U (en) | 2017-03-31 | 2017-03-31 | A kind of excitation system controls angle measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720329296.0U CN206584023U (en) | 2017-03-31 | 2017-03-31 | A kind of excitation system controls angle measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206584023U true CN206584023U (en) | 2017-10-24 |
Family
ID=60115395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720329296.0U Expired - Fee Related CN206584023U (en) | 2017-03-31 | 2017-03-31 | A kind of excitation system controls angle measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206584023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361639A (en) * | 2019-07-31 | 2019-10-22 | 南方电网科学研究院有限责任公司 | Synchronizing device suitable for long air electric discharge observation |
-
2017
- 2017-03-31 CN CN201720329296.0U patent/CN206584023U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361639A (en) * | 2019-07-31 | 2019-10-22 | 南方电网科学研究院有限责任公司 | Synchronizing device suitable for long air electric discharge observation |
| CN110361639B (en) * | 2019-07-31 | 2021-06-22 | 南方电网科学研究院有限责任公司 | Synchronizer suitable for long air discharge observation |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 Termination date: 20200331 |
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| CF01 | Termination of patent right due to non-payment of annual fee |