CN201242453Y - Synthesis measuring recorder for hot working and electric parameter based on synchronous sampling - Google Patents
Synthesis measuring recorder for hot working and electric parameter based on synchronous sampling Download PDFInfo
- Publication number
- CN201242453Y CN201242453Y CNU2008201374030U CN200820137403U CN201242453Y CN 201242453 Y CN201242453 Y CN 201242453Y CN U2008201374030 U CNU2008201374030 U CN U2008201374030U CN 200820137403 U CN200820137403 U CN 200820137403U CN 201242453 Y CN201242453 Y CN 201242453Y
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- gps
- record ripple
- synchronous sampling
- electric
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Abstract
The utility model relates to a thermal parameter and electric parameter integrated measuring record analyzer based on synchronous sampling, which consists of a high pressure opening plate, a low pressure opening plate, a GPS and a torsional vibration plate, an analog quantity collecting plate, a wave recording plate, an operation plate, a user-defined bus, a touch screen, an Ethernet interface and a hard drive. The utility model realizes the integrated measurement of thermal parameters and electric parameters in the power plant, the synchronous sampling of the thermal parameters and the electric parameters is achieved on the basis of the synchronous sampling pulse of a GPS uniform clock, the low frequency oscillation and the electromechanical failure of the electric system can be analyzed, and the measuring volume after and before the exchanging abrupt change can be recorded to obtain the required data for the dynamic evaluation.
Description
Technical field
The utility model relates to a kind of electronic equipment that is used to analyze the low-frequency oscillation of electric power system problem, especially a kind of thermal technology and electric parameter composite measurement recorder analyser based on synchronized sampling.
Background technology
Nearly all ignored the variation of original machine power in the research of low-frequency oscillation of electric power system, prime mover refers to such an extent that be steam turbine in thermal power plant in the past, then refers to such an extent that be the hydraulic turbine in the hydroelectric power plant, and they all provide the machine of original power.In the tradition research, think that prime mover thermal procession or waterpower process itself are slow processes, quick disturbance in the thermal parameter in the 0.2-2.5Hz scope is never by concern, measured, only when stablizing, research electric system long-term dynamics just considers their influence, so when research power system stability problem, do not consider firepower plant heating system dynamically and hydroelectric power plant's hydraulic turbine and governing system thereof dynamic, this situation has influenced the correct understanding to some low-frequency oscillation of electric power system problem.On the other hand, different instruments is adopted in the measurement of existing thermal parameter and electric parameter usually, can not realize the data sync sampling.In addition, the data precision of different instruments, data layout often difference are bigger, and analytical equipment and electric network fault hardly may under same markers.
Summary of the invention
The purpose of this utility model just provides a kind ofly can combine measurement with thermal parameter in the generating plant and electric parameter synchronized sampling, measurement data precision height, accurately based on the thermal technology and the electric parameter composite measurement registering instrument of synchronized sampling.
Thermal technology and electric parameter composite measurement registering instrument based on synchronized sampling of the present utility model, comprise that height presses off entering plate, low entering plate, GPS and torsional oscillation plate, analog acquisition plate, record ripple plate, management board, self-defined bus, touch-screen, Ethernet interface and the hard disk of pressing off, wherein, the low entering plate collection height that presses off presses off opening into signal after the entering plate conversion, and will open into signal and give record ripple plate.GPS and torsional oscillation plate receive the outside GPS pulse per second (PPS) of introducing, and adopt hardware to produce Synchronous Sampling Pulse, and Synchronous Sampling Pulse is sent to the analog acquisition plate to the self-defined bus by the instrument backboard and record ripple plate is used for synchronized sampling.The analog acquisition plate is finished high-speed data acquisition and digital filtering, calculates the actual value of of ac and DC quantity, sends to record ripple plate by dual port RAM.Record ripple plate is collected the data of GPS and torsional oscillation plate, analog acquisition plate by dual port RAM, then according to self-defining record ripple start-up criterion, judged whether abnormal conditions or sign mutation has been arranged, automatically start the record ripple, automatically generate COMTRADE standard data format record ripple file and deposit hard disk fast in, and will reach in real time and give touch-screen on the fault recorder data, accept the fixed value modification instruction of touch-screen simultaneously.Management board communicates by Ethernet interface and other computing machine, realizes the upload function of management of a definite value file and a configuration file distant place and fault recorder data.
Thermal technology based on synchronized sampling of the present utility model compares with the existing recorded analyser with electric parameter composite measurement registering instrument, have the following advantages: 1, can gather of ac (voltage or electric current), DC quantity, pulsed quantity simultaneously, the character of each passage can be disposed by definite value, according to different signal properties image data is carried out different disposal; 2, based on the data sync sampling of GPS unified clock, make image data analyzing on the coordinate system at the same time according to absolute time mark; 3, the data format file of standard is provided, and the data of collection can be obtained and analyze to the third-party analysis program very easily, for correlative study work is provided convenience.
Description of drawings
Fig. 1 is a hardware architecture synoptic diagram of the present utility model;
Fig. 2 is a synchronized sampling scheme synoptic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and the specific embodiments the utility model is further described in more detail.
As Fig. 1, a kind of thermal technology and electric parameter composite measurement registering instrument based on synchronized sampling, comprise that height presses off entering plate 1, low entering plate 2, GPS and torsional oscillation plate 3, analog acquisition plate 4, record ripple plate 5, management board 6, self-defined bus 7, touch-screen 8, Ethernet interface 9 and the hard disk 10 of pressing off, wherein, the low entering plate 2 that presses off is gathered and is highly pressed off opening into signal after entering plate 1 conversion, and will open into signal and give record ripple plate 5.GPS and torsional oscillation plate 3 receives the outside GPS pulse per second (PPS) of introducing, and adopts hardware to produce Synchronous Sampling Pulse, and Synchronous Sampling Pulse is sent to analog acquisition plate 4 to the self-defined bus 7 by the instrument backboard and record ripple plate 5 is used for synchronized sampling.Analog acquisition plate 4 is finished high-speed data acquisition and digital filtering, calculates the actual value of of ac and DC quantity, sends to record ripple plate 5 by dual port RAM.Record ripple plate 5 is collected the data of GPS and torsional oscillation plate 3, analog acquisition plate 4 by dual port RAM, then according to self-defining record ripple start-up criterion, judged whether abnormal conditions or sign mutation has been arranged, automatically start the record ripple, can recording exceptional preceding 30 seconds, unusual back 5 minutes data generate COMTRADE standard data format record ripple file automatically and deposit hard disk 10 fast in, and will reach in real time and give touch-screen 8 on the fault recorder data, accept the fixed value modification instruction of touch-screen 8 simultaneously.Management board 6 communicates by Ethernet interface 9 and other computing machine, realizes functions such as uploading of management of a definite value file and a configuration file distant place and fault recorder data.
As Fig. 2, at first the GPS receiving element provides the whole world unified pps pulse per second signal, secondly according to pps pulse per second signal, use programmable logic device (PLD) hardware and produce Synchronous Sampling Pulse, the self-defined bus by the instrument backboard sends to the synchronous acquisition that the sampling holder that is inserted in the data acquisition board in the self-defined bus slot is realized thermal parameter and electric parameter with Synchronous Sampling Pulse at last.
The thermal parameter of described generating plant and electric parameter, wherein, electric parameter comprises: generator machine end protective current Ia, generator machine end protective current Ib, generator machine end protective current Ic, generator machine end is measured electric current I a, generator machine end is measured current Ib, generator machine end is measured electric current I c, generator neutral point zero-sequence current 3I0, generator terminal voltage Ua, generator terminal voltage Ub, generator terminal voltage Uc, generator machine end residual voltage 3U0, generator neutral point residual voltage 3U0 ', generator excitation voltage, exciter current of generator, mains frequency; Thermal parameter comprises: a left side, high-pressure side control valve opening one, a left side, high-pressure side control valve opening two, the right control valve opening one in high-pressure side, the right control valve opening two in high-pressure side, medium voltage side left side control valve opening one, medium voltage side left side control valve opening two, the right control valve opening one of medium voltage side, the right control valve opening two of medium voltage side, high pressure cylinder governing stage vapor pressure, high pressure cylinder exhaust steam pressure, reheater outlet vapor pressure, head rotating speed, phase discrimination signal.
Claims (1)
1, a kind of thermal technology and electric parameter composite measurement registering instrument based on synchronized sampling, comprise that height presses off entering plate (1), the low entering plate (2) that presses off, GPS and torsional oscillation plate (3), analog acquisition plate (4), record ripple plate (5), management board (6), self-defined bus (7), touch-screen (8), Ethernet interface (9) and hard disk (10), it is characterized in that: the low entering plate (2) that presses off is gathered height and is pressed off opening into signal after entering plate (1) conversion, and will open into signal and give record ripple plate (5), GPS and torsional oscillation plate (3) receive the outside GPS pulse per second (PPS) of introducing, employing hardware produces Synchronous Sampling Pulse, by self-defined bus (7) Synchronous Sampling Pulse is sent to analog acquisition plate (4) and records ripple plate (5) to be used for synchronized sampling; Analog acquisition plate (4) is finished high-speed data acquisition and digital filtering, calculates the actual value of of ac and DC quantity, sends to record ripple plate (5) by dual port RAM; Record ripple plate (5) is collected the data of GPS and torsional oscillation plate (3), analog acquisition plate (4) by dual port RAM, then according to self-defining record ripple start-up criterion, judged whether abnormal conditions or sign mutation has been arranged, automatically start the record ripple, automatically generate COMTRADE standard data format record ripple file and deposit hard disk (10) fast in, and will reach in real time and give touch-screen (8) on the fault recorder data, accept the fixed value modification instruction of touch-screen (8) simultaneously; Management board (6) communicates by Ethernet interface (9) and other computing machine, realizes the upload function of management of a definite value file and a configuration file distant place and fault recorder data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201374030U CN201242453Y (en) | 2008-08-18 | 2008-08-18 | Synthesis measuring recorder for hot working and electric parameter based on synchronous sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201374030U CN201242453Y (en) | 2008-08-18 | 2008-08-18 | Synthesis measuring recorder for hot working and electric parameter based on synchronous sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201242453Y true CN201242453Y (en) | 2009-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201374030U Expired - Fee Related CN201242453Y (en) | 2008-08-18 | 2008-08-18 | Synthesis measuring recorder for hot working and electric parameter based on synchronous sampling |
Country Status (1)
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| CN (1) | CN201242453Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104292A (en) * | 2013-04-15 | 2014-10-15 | 同济大学 | Real-time power generator excitation system state wide area acquisition system |
| CN105116873A (en) * | 2015-07-15 | 2015-12-02 | 贵州电力试验研究院 | Heat-engine plant multi-automatic adjusting loop evaluation diagnosis method |
-
2008
- 2008-08-18 CN CNU2008201374030U patent/CN201242453Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104292A (en) * | 2013-04-15 | 2014-10-15 | 同济大学 | Real-time power generator excitation system state wide area acquisition system |
| CN104104292B (en) * | 2013-04-15 | 2017-05-24 | 同济大学 | Real-time power generator excitation system state wide area acquisition system |
| CN105116873A (en) * | 2015-07-15 | 2015-12-02 | 贵州电力试验研究院 | Heat-engine plant multi-automatic adjusting loop evaluation diagnosis method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20090918 |