CN102928706B - A kind of interchange harvester and collecting method thereof - Google Patents
A kind of interchange harvester and collecting method thereof Download PDFInfo
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- CN102928706B CN102928706B CN201210423564.7A CN201210423564A CN102928706B CN 102928706 B CN102928706 B CN 102928706B CN 201210423564 A CN201210423564 A CN 201210423564A CN 102928706 B CN102928706 B CN 102928706B
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Abstract
The invention discloses a kind of interchange harvester and collecting method thereof, comprise dsp processor and connected single-chip microcomputer; The alternating voltage of A phase, B phase and C phase by after precision resistance dividing potential drop, then is promoted to the voltage DC signal of effective value 0.7 ~ 1V by 1.65V reference voltage, and be processed into the magnitude of voltage of 0 ~ 3.3V by amplifier after, the A/D exporting dsp processor to changes input port; The alternating current of A phase, B phase and C phase by after current transformer, then is promoted to the small voltage direct current signal of effective value 0.7 ~ 1V by 1.65V reference voltage, and be processed into the voltage of 0 ~ 3.3V by amplifier after, the A/D exporting dsp processor to changes input port; Simultaneously by the small voltage direct current signal of the effective value 0.7 ~ 1V of A phase or C cross streams voltage transitions, send into hysteresis loop comparator, export the CAP mouth of dsp processor to.The present invention can meet the accuracy requirement of system.
Description
Technical field
The present invention relates to electric power data acquisition field, particularly relate to a kind of interchange harvester and collecting method thereof.
Background technology
In some industrial and mining enterprises, often need to monitor parameters of electric power, to ensure the quality of power supply, thus guarantee product quality.At present, exchanging harvester mainly adopts the DSP of 8 single-chip microcomputers or 16 to design.But single-chip data processing power is not enough, is difficult to obtain comprehensive parameters of electric power data; And existing based in the system of DSP, if signal-DSP system selects TMS320F28 family chip costly, then cost is higher; If select general TMS320F24 family chip, because speed is lower, function limitation; And in the system adopting TMS320F24 family chip to be combined with 8 single-chip microcomputers, all gather momentary current and voltage signal with single-chip microcomputer, only adopt dsp chip to complete parameter calculation task.And the acquisition precision of 8 single-chip microcomputers is not enough, be just difficult to the computational accuracy ensureing alternating-current parameter.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of and exchange harvester and collecting method thereof, to complete Real-time Collection, the in real time calculating of alternating-current parameter and to show in real time, and meets the accuracy requirement of system.
To achieve these goals, the technical solution used in the present invention is: a kind of interchange harvester, comprises voltage sample module, current sample module, frequency sampling module, dsp processor, single-chip microcomputer and display module; Voltage sample module, carries out voltage division processing by the alternating voltage of precision resistance to A phase, B phase and C phase, then is promoted to voltage DC signal by reference voltage, and by after amplifier process, the A/D exporting dsp processor respectively to changes input port; Current sample module, the alternating current of A phase, B phase and C phase is converted to voltage DC signal respectively by current transformer and reference voltage, and by after amplifier process, the A/D exporting dsp processor to changes input port; Frequency sampling module, by the voltage DC signal that A phase or C cross streams voltage are changed by precision resistance and reference voltage, sends into hysteresis loop comparator, then exports the CAP input port of dsp processor to; Dsp processor is connected with single-chip microcomputer, and single-chip microcomputer output terminal connects display module.
As preferably, described single-chip microcomputer adopts AT89S51.
As preferably, described dsp processor is TMS320F2407, and dsp processor and single-chip microcomputer pass through serial-port communication.
As preferably, described display module comprises charactron and button, and charactron is connected with single-chip microcomputer through MAX7219 chip, and button is connected with single-chip processor i/o mouth.
As preferably, described charactron is 8, and button is 2.
As preferably, described single-chip microcomputer by 3 I/O mouth control MAX485 chips, thus is mounted in 485 buses; Host computer passes through 232 turn of 485 model calling in 485 buses.
Exchange a collecting method for harvester, comprise dsp processor and connected single-chip microcomputer; The alternating voltage of A phase, B phase and C phase is by after precision resistance dividing potential drop, the voltage DC signal of effective value 0.7 ~ 1V is promoted to again by the reference voltage of 1.65V, and be processed into the magnitude of voltage of 0 ~ 3.3V by amplifier after, the A/D exporting dsp processor to changes input port, is calculated the instantaneous value of A phase, B phase and C cross streams piezoelectric voltage by dsp processor; The alternating current of A phase, B phase and C phase is by after current transformer, the voltage DC signal of effective value 0.7 ~ 1V is converted to again by the reference voltage of 1.65V, and be processed into the voltage of 0 ~ 3.3V by amplifier after, the A/D exporting dsp processor to changes input port, is intersected the instantaneous value of galvanic current by dsp processor calculating A phase, B phase and C; Simultaneously by the voltage DC signal of the effective value 0.7 ~ 1V of A phase or C cross streams voltage transitions, send into hysteresis loop comparator, after being processed into square wave, exporting the CAP input port of dsp processor to, calculated the frequency of alternating current by dsp processor; The parameter information calculated is passed to single-chip microcomputer by dsp processor, and single-chip microcomputer completes the display of alternating-current parameter by display module.
As preferably, described single-chip microcomputer is AT89S51, and dsp processor is TMS320F2407, and dsp processor and single-chip microcomputer pass through serial-port communication; Described display module comprises charactron and button, and charactron is connected with single-chip microcomputer through MAX7219 chip, and button is connected with single-chip processor i/o mouth; Described single-chip microcomputer by 3 I/O mouth control MAX485 chips, thus is mounted in 485 buses; Host computer passes through 232 turn of 485 model calling in 485 buses.
As preferably, dsp processor gathers the instantaneous value of 64 voltage signals and current signal in each cycle, calculate the three-phase voltage of three-phase alternating current, three-phase current, frequency, active power, reactive power, applied power, power factor, active electrical degree, apparent electric degree, harmonic parameters, and be stored in storer.
As preferably, the timer 0 of dsp processor interrupts being set as 1s Interruption.
The beneficial effect that the present invention brings is: the present invention adopts the method for designing based on TMS320LF2407 and 8 chip processor AT89S51, is core, completes collection and the calculating of AC signal with TMS32LF2407; And only complete the display of alternating-current parameter with single-chip microcomputer, thus when ensureing parameter acquisition precision, completing the Real-time Collection of alternating-current parameter, in real time calculating and showing in real time.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Embodiment one
As shown in Figure 1, a kind of interchange harvester and collecting method thereof, mainly comprise with lower part:
Part I: DSP microcontroller TMS320LF2407 gathers the C phase voltage frequency of alternating current:
Carry out dividing potential drop sampling by resistance R29 (330K Ω) and R30 (1K Ω), wherein R30 to be precision be 1% metalfilmresistor, thus by C phase voltage (effective value≤300V) step-down of external communication electricity, obtain U
vc=300/331=0.91V (relative to reference voltage 1.65V);
Export through amplifier and be:
(relative to reference voltage 1.65V), by the lifting of 1.65V, effective value is the direct current signal that the AC signal of 300V is treated to 0.28 ~ 3.02V relative to ground.
Above-mentioned signal sends into the anti-phase hysteresis loop comparator that N7 and R35 ~ R37 forms, and the antijamming capability of hysteresis loop comparator is very strong, can improve measuring accuracy.
Hysteresis loop comparator has two threshold values.In this circuit, output voltage changes to the threshold values of high level by low level, and the threshold values that output voltage changes to high level by high level is respectively:
By the process of voltage sampling circuit calculating above, known Vc is 0.28 ~ 3.02V relative to magnitude of voltage digitally, and signal is the sinusoidal waveform of mean value 1.65V.And the reference voltage value of this hysteresis loop comparator normal phase input end is GNDA, i.e. 1.65V.From calculating above, two threshold values of hysteresis loop comparator, centered by 1.65V, depart from about 0.15V up and down, and the difference of two threshold values is 0.3V.Like this when input signal be disturbed change time, as long as variable quantity is no more than 0.64V, output quantity will keep stable, and the impact that can not be disturbed.
Above signal is input to the CAP1 end of TMS320LF2407, can calculate the frequency of signal.
Part II: DSP microcontroller TMS320LF2407 gathers A, B and the C phase voltage of alternating current:
Carry out dividing potential drop sampling by resistance R29 (330K Ω) and R30 (1K Ω), wherein R30 to be precision be 1% metalfilmresistor, thus by C phase voltage (effective value≤300V) step-down of external communication electricity, obtain U
vc=300/331=0.91V (relative to reference voltage 1.65V);
Export through amplifier and be:
(relative to reference voltage 1.65V), by the lifting of 1.65V, effective value is the direct current signal that the AC signal of 300V is treated to 0.28 ~ 3.02V relative to ground;
Above signal, after capacitance-resistance (R34 and C6) filtering and stabilivolt (D6) amplitude limit, enters the A/D input port ADCIN5 pin of dsp chip TMS320LF2407;
The A/D of TMS320LF2407 inside is 10 and successively compares pattern number converter, and when selecting the accurate reference power supply of+3.3V, its quantization unit q is 3.22mV(3.3/1024=3.22mV), quantization error is q/2=1.61mV.In a wave period, during DSP sampling minimum value 0.63V, analog-to-digital precision is 1.61 × 10
-3/ 0.28=0.57%, during sampling maximal value 4.37V, analog-to-digital precision is 1.61 × 10
-3/ 3.02=0.053%, in the parameter calculation formula such as electric current, voltage effective value, every point sampling value is in equal status, but role is different.Be worth larger, role is larger, and the precision of parameter also decides primarily of large value.Therefore, can think that the precision of parameter is better than the mean value of minimum and maximum precision.Namely precision is better than 0.311%.
In like manner A phase voltage and the B phase voltage of external communication electricity are connected A/D input port ADCIN3 and the ADCIN4 pin of dsp chip TMS320LF2407 respectively by similar process.
Part III: DSP microcontroller TMS320LF2407 gathers A, B and the C phase current of alternating current:
By current transformer, C phase current signal (effective value≤5A) is converted to small voltage signal through accurate current transformer (precision is 0.1%, 5mA) and R24 (150 Ω), and the size of small voltage signal effective value is: 5 × 10
-3× 150=0.75V, scope is ± 5 × 10
-3× 150 ×
=± 1.06V(relative voltage benchmark 1.65V), be relatively 0.59 ~ 2.71V;
The emitter follower that above-mentioned signal forms through amplifier exports;
Above-mentioned signal, after capacitance-resistance (R28 and C5) filtering and stabilivolt (D5) amplitude limit, enters the A/D input port ADCIN2 pin of dsp chip TMS320LF2407;
In a wave period, during DSP sampling minimum value 0.59V, analog-to-digital precision is 0.161 × 10
-3/ 0.59=0.274%;
During sampling maximal value 2.71V, analog-to-digital precision is 0.161 × 10
-3/ 2.71=0.058%.Survey parameter precision should be better than 0.166%;
In like manner A phase current and the B phase current of external communication electricity are connected A/D input port ADCIN0 and the ADCIN1 pin of dsp chip TMS320LF2407 respectively by similar process.
Part IV: the various parameter informations calculated are passed to AT89S51 single-chip microcomputer by DSP microcontroller TMS320LF2407.
DSP determines the sample frequency of electric current, voltage channel according to the frequency recorded.For example, assuming that frequency is 50Hz, then the cycle is 20ms.Monitor each cycle gathers 64 points, and A/D channel sample frequency is 3200Hz, and the sampling period is 312.5us;
After TMS320LF2407 has gathered one-period data, calculate all relevant parameters of electric power;
The mean value of institute's calculating parameter is sent to AT89S51 single-chip microcomputer by TMS320LF2407 in 1s Interruption;
After AT89S51 single-chip microcomputer receives parameter, be stored in storer, and by 3 I/O mouths, SPI-bus analogue sequential, drives MAX7219 chip, thus lights 8 charactrons, display A phase voltage and current effective value;
AT89S51 single-chip microcomputer extends 2 buttons by 5 I/O mouths, is respectively upturning key and downturning key, and user can select all the other parameters to show by upturning key and downturning key;
AT89S51 single-chip microcomputer utilizes 3 I/O mouths, by light lotus root, drives MAX485 chip, extends a RS-485 interface, be mounted in 485 buses; Host computer, by 232 turn of 485 module, is mounted to 485 buses, can control nearly 255 interchange harvesters; Each interchange harvester has oneself unique address, and host computer can send collection signal order to each interchange collector, and parameters of electric power can be sent to host computer by this interchange harvester.
In order to ensure parameter computational accuracy, each cycle needs collection 64 points, and system, according to the frequency of calculated alternating current, just can calculate the cycle that dsp processor gathers three road voltage signals and three road current signals; The instantaneous value of 64 voltage signals that dsp processor TMS320F2407 collected according to each cycle and current signal, calculate the parameters such as the three-phase voltage of three-phase alternating current, three-phase current, frequency, active power, reactive power, applied power, power factor, active electrical degree, apparent electric degree, harmonic wave, and be stored in storer.
Embodiment two
That, in Part I, DSP microcontroller TMS320LF2407 gathers the A phase voltage frequency of alternating current, gathers identical with embodiment one with computation process with embodiment one difference; Second and third, four parts are with embodiment one.
Claims (10)
1. an interchange harvester, is characterized in that: comprise voltage sample module, current sample module, frequency sampling module, dsp processor, single-chip microcomputer and display module;
Voltage sample module, carry out voltage division processing by the alternating voltage of precision resistance to A phase, B phase and C phase, then be promoted to voltage DC signal by reference voltage, and by after amplifier process, this signal is again through capacitance-resistance filter and stabilivolt amplitude limit, and the A/D exporting dsp processor respectively to changes input port;
Current sample module, the alternating current of A phase, B phase and C phase is converted to voltage DC signal respectively by current transformer and reference voltage, and by after amplifier process, this signal is again through capacitance-resistance filter and stabilivolt amplitude limit, and the A/D exporting dsp processor to changes input port;
Frequency sampling module, by the voltage DC signal that A phase or C cross streams voltage are changed by precision resistance and reference voltage, sends into hysteresis loop comparator; Described hysteresis loop comparator comprises an amplifier N7, and the positive input terminal of amplifier N7 is connected with reference voltage through resistance R35,
the voltage DC signal that the negative input end connection A phase of amplifier N7 or C cross streams voltage are changed by precision resistance and reference voltage,electric capacity C7 in parallel and resistance R37 is connected with between the positive input terminal of amplifier N7 and output terminal; The output terminal of hysteresis loop comparator connects the CAP input port of dsp processor;
Dsp processor is connected with single-chip microcomputer, and single-chip microcomputer output terminal connects display module.
2. one according to claim 1 exchanges harvester, it is characterized in that: described single-chip microcomputer adopts AT89S51.
3. one according to claim 2 exchanges harvester, it is characterized in that: described dsp processor is TMS320F2407, and dsp processor and single-chip microcomputer pass through serial-port communication.
4. one according to claim 3 exchanges harvester, and it is characterized in that: described display module comprises charactron and button, charactron is connected with single-chip microcomputer through MAX7219 chip, and button is connected with single-chip processor i/o mouth.
5. one according to claim 4 exchanges harvester, and it is characterized in that: described charactron is 8, button is 2.
6. one according to claim 5 exchanges harvester, it is characterized in that: described single-chip microcomputer by 3 I/O mouth control MAX485 chips, thus is mounted in 485 buses; Host computer passes through 232 turn of 485 model calling in 485 buses.
7. exchange a collecting method for harvester, it is characterized in that: comprise dsp processor and connected single-chip microcomputer; The alternating voltage of A phase, B phase and C phase is by after precision resistance dividing potential drop, the voltage DC signal of effective value 0.7 ~ 1V is promoted to again by the reference voltage of 1.65V, and be processed into the magnitude of voltage of 0 ~ 3.3V by amplifier after, the A/D exporting dsp processor to changes input port, is calculated the instantaneous value of A phase, B phase and C cross streams piezoelectric voltage by dsp processor; The alternating current of A phase, B phase and C phase is by after current transformer, the voltage DC signal of effective value 0.7 ~ 1V is converted to again by the reference voltage of 1.65V, and be processed into the voltage of 0 ~ 3.3V by amplifier after, the A/D exporting dsp processor to changes input port, is intersected the instantaneous value of galvanic current by dsp processor calculating A phase, B phase and C; Simultaneously by the voltage DC signal of the effective value 0.7 ~ 1V of A phase or C cross streams voltage transitions, send into hysteresis loop comparator; Described hysteresis loop comparator comprises an amplifier N7, the positive input terminal of amplifier N7 is connected with reference voltage through resistance R35, the voltage DC signal that the negative input end connection A phase of amplifier N7 or C cross streams voltage are changed by precision resistance and reference voltage, is connected with electric capacity C7 in parallel and resistance R37 between the positive input terminal of amplifier N7 and output terminal; After voltage signal is processed into square wave by hysteresis loop comparator, exports the CAP input port of dsp processor to, calculated the frequency of alternating current by dsp processor; The parameter information calculated is passed to single-chip microcomputer by dsp processor, and single-chip microcomputer completes the display of alternating-current parameter by display module.
8. a kind of collecting method exchanging harvester according to claim 7, it is characterized in that: described single-chip microcomputer is AT89S51, dsp processor is TMS320F2407, and dsp processor and single-chip microcomputer pass through serial-port communication; Described display module comprises charactron and button, and charactron is connected with single-chip microcomputer through MAX7219 chip, and button is connected with single-chip processor i/o mouth; Described single-chip microcomputer by 3 I/O mouth control MAX485 chips, thus is mounted in 485 buses; Host computer passes through 232 turn of 485 model calling in 485 buses.
9. a kind of collecting method exchanging harvester according to claim 8, it is characterized in that: dsp processor gathers the instantaneous value of 64 voltage signals and current signal in each cycle, calculate the three-phase voltage of three-phase alternating current, three-phase current, frequency, active power, reactive power, applied power, power factor, active electrical degree, apparent electric degree, harmonic parameters, and be stored in storer.
10. a kind of collecting method exchanging harvester according to claim 9, is characterized in that: the timer (0) of dsp processor interrupts being set as 1s Interruption.
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| CN103197136A (en) * | 2013-04-25 | 2013-07-10 | 天津市百利电气有限公司 | Ampere meter for air-core transformer and control method thereof |
| CN110333384B (en) * | 2019-08-15 | 2021-04-13 | 杭州电子科技大学 | Three-phase alternating current voltage high-precision rapid detection circuit based on mutual inductor |
| CN111381536A (en) * | 2020-03-05 | 2020-07-07 | 九江学院 | TMS320F28 series DSP excitation acquisition system |
| CN116298492B (en) * | 2023-05-23 | 2023-08-22 | 山东棋盘信息科技有限公司 | Alternating current mixed signal detection system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201365A (en) * | 2007-07-13 | 2008-06-18 | 北京工业大学 | System and method for measuring and analyzing voltage frequency |
| CN101482578A (en) * | 2008-11-06 | 2009-07-15 | 丹东华通测控有限公司 | Multifunctional electric energy meter |
| CN201285434Y (en) * | 2008-11-14 | 2009-08-05 | 中国科学院沈阳自动化研究所 | Non-invasion motor efficiency on-line detection apparatus for |
| CN202870215U (en) * | 2012-10-30 | 2013-04-10 | 河南科技大学 | AC collection apparatus |
-
2012
- 2012-10-30 CN CN201210423564.7A patent/CN102928706B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201365A (en) * | 2007-07-13 | 2008-06-18 | 北京工业大学 | System and method for measuring and analyzing voltage frequency |
| CN101482578A (en) * | 2008-11-06 | 2009-07-15 | 丹东华通测控有限公司 | Multifunctional electric energy meter |
| CN201285434Y (en) * | 2008-11-14 | 2009-08-05 | 中国科学院沈阳自动化研究所 | Non-invasion motor efficiency on-line detection apparatus for |
| CN202870215U (en) * | 2012-10-30 | 2013-04-10 | 河南科技大学 | AC collection apparatus |
Non-Patent Citations (2)
| Title |
|---|
| 基于DSP的智能电表的研究;李会容;《中国优秀硕士学位论文全文数据工程科技II辑》;20070915(第03期);第7-8,18-39页 * |
| 基于DSP的电能质量监测装置采集系统的研究;左涛 等;《2007中国继电保护及自动化行业年会论文集》;20071231;第296-300页 * |
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