CN103439543A - Device and method for realizing direct-current even order harmonic, subharmonic and odd harmonic of currents - Google Patents
Device and method for realizing direct-current even order harmonic, subharmonic and odd harmonic of currents Download PDFInfo
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- CN103439543A CN103439543A CN2013103868609A CN201310386860A CN103439543A CN 103439543 A CN103439543 A CN 103439543A CN 2013103868609 A CN2013103868609 A CN 2013103868609A CN 201310386860 A CN201310386860 A CN 201310386860A CN 103439543 A CN103439543 A CN 103439543A
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Abstract
The invention discloses a device for realizing direct-current even order harmonic, subharmonic and odd harmonic of currents. The device comprises a current source and a current harmonic converter. The current harmonic converter comprises a first path electronic switch, a second path electronic switch, and a triggering signal control unit. The current source outputs sine wave signals. A path of signal passes through the first path electronic switch, and the other path signal passes through the second path electronic switch. The control end of the first path electronic switch and the control end of the second path electronic switch are respectively connected with the two signal output ends of the triggering signal control unit. The triggering control unit respectively controls the two electronic switches to be switched on or switched off in different positions. The device is good in harmonic generating effect, and can meet the requirements of national standard GB/T17215.321-2008 (12 grade static type active power watt-hour meter) for the waveform of the direct-current even order harmonic, subharmonic and odd harmonic of the currents.
Description
Technical field
The present invention relates to a kind of device of generation current harmonic wave, relate in particular to the apparatus and method of a kind of direct current even-order harmonic that realizes electric current, subharmonic, odd harmonic.
Background technology
At present, increase due to a large amount of non-linear electrical equipments, produce a large amount of harmonic waves in electrical network, harmonic wave more and more is subject to people's attention the impact of electric energy meter, so national standard has just proposed a kind of certificate test method of current harmonics to the error effect amount of electric energy meter in recent years, this just requires the power supply of electric energy meter experimental provision can the generation current harmonic wave.According to the requirement of GB GB/T17215.321-2008, realize the direct current even-order harmonic, subharmonic, these three kinds of harmonic waves of odd harmonic.
According to the requirement of these three kinds of harmonic wave forms, implementation method can produce the waveform of these three kinds of harmonic waves from signal source, through power amplification, exports, but present amplifier is due to the transient response deficiency, follow-up capability is not strong, causes the output waveform distortion, and especially odd harmonic is more inadequate.
summary of the invention
The purpose of this invention is to provide a kind of apparatus and method that realize current DC even-order harmonic, subharmonic, odd harmonic, harmonic wave forms is good, and harmonic content is accurate, easy to use.
The present invention adopts following technical proposals: a kind of current DC even-order harmonic that realizes, subharmonic, the device of odd harmonic, include current source and current harmonics converter, described current harmonics converter comprises first via electronic switch and No. second electronic switch and trigger pip control module, described current source sine wave output signal, one road signal is by first via electronic switch, another road signal is by No. second electronic switch, the control end of described first via electronic switch and No. second electronic switch is connected with two signal output parts of trigger pip control module respectively, the output of the two ends of described first via electronic switch be the direct current even-order harmonic, subharmonic or odd harmonic.
The two ends of described No. second electronic switch are connected with balance resistance.
A kind of method that realizes current DC even-order harmonic, subharmonic, odd harmonic, by the sinusoidal wave Harmonics of Input converter of current source output, trigger pip control module in the current harmonics converter is controlled two-way electronic switch cyclic switching, two trigger pips that wherein the trigger pip control module sends are synchronizeed with the current source sinusoidal signal, control respectively two electronic switches and carry out conducting or shutoff on diverse location, the two ends of first via electronic switch output is direct current even-order harmonic, subharmonic or odd harmonic.
The present invention realizes the generation of direct current even-order harmonic, subharmonic, odd harmonic by the sine wave of the output of the current source to conventional with the switching of two-way electronic switch, than for power amplifier amplify the effective of direct current even-order harmonic, subharmonic, odd harmonic, especially odd harmonic, will be at the current maxima place (90 °) moment become maximal value from zero, meet GB GB/T17215.321-2008(12 level state type active electric energy meter) to the current DC even-order harmonic, subharmonic, the requirement of odd harmonic waveform.And amplify such transient signal with power amplifier, and it is unpractical requiring power amplifier that desirable follow-up capability is arranged, waveform can shake occur in this position.
The accompanying drawing explanation
The schematic diagram that Fig. 1 is the current harmonics converter;
Fig. 2 is for producing the test connection figure of subharmonic, odd harmonic;
Fig. 3 is for producing the test connection figure of direct current even-order harmonic;
The oscillogram that Fig. 4 is the direct current even-order harmonic;
The oscillogram that Fig. 5 is subharmonic;
The oscillogram that Fig. 6 is odd harmonic.
Embodiment
As shown in Figure 1, the invention discloses a kind of direct current even-order harmonic that realizes electric current, subharmonic, the device of odd harmonic, include current source and current harmonics converter, described current harmonics converter comprises first via electronic switch K1(MOS pipe) and No. second electronic switch K2(MOS pipe) and the trigger pip control module of control two-way electronic switch break-make, current source sine wave output signal, one road signal is by first via electronic switch K1, another road signal is by No. second electronic switch K2, the control end of described first via electronic switch K1 and No. second electronic switch K2 is connected with two signal output parts of trigger pip control module respectively, the trigger pip that the trigger pip control module sends is synchronizeed with the current source sinusoidal signal, control respectively two electronic switches (different wave amplitude) on the different time position and carry out conducting or shutoff, the output of the two ends of described first via electronic switch K1 be the direct current even-order harmonic, subharmonic or odd harmonic signal.The two ends of described No. second electronic switch are connected with balance resistance R1, R2, and an end of first via electronic switch is connected with balance resistance R3.
The present invention realizes that with two electronic switch cyclic switchings the principle of direct current even-order harmonic, subharmonic and odd harmonic is: to the sine wave of conventional current source output, the trigger pip of sending through the trigger pip control module is removed to control the two-way electronic switch and carry out turn-on and turn-off on diverse location, just formed the direct current even-order harmonic, subharmonic, odd harmonic, bypass the current segment of not using.Described trigger pip control module adopts frequency division or frequency multiplication to realize producing the harmonic wave trigger pip, also can adopt other way to realize producing the harmonic wave trigger pip, such as programmable logic device (CPLD) etc.
The production method of electronic switch trigger pip: this method requires the trigger pip of controlling electronic switch to synchronize with current source, and want accurately at reference mark.Trigger pip control module one zero-crossing comparator, produce the signal of synchronizeing with current source, removes respectively to control two electronic switches, realizes the direct current even-order harmonic; The trigger pip control module is 2 frequency divisions of sinusoidal wave synchronizing signal, more oppositely obtains the control signal of 2 subharmonic, goes respectively to control complementary two cycles of conducting of two electronic switches, just realizes subharmonic; Same trigger pip control module is sinusoidal wave synchronizing signal frequency multiplication, more oppositely obtains the control signal of 2 odd harmonics, goes respectively to control complementary 1/4 cycles of conducting of two electronic switches, just realizes odd harmonic.
The specific implementation principle of three kinds of current harmonicss is as follows:
1. direct current even-order harmonic: the sine wave with the two-way electronic switch to conventional current source output is switched, No. one electronic switch aligns the half cycle conducting, the lower negative half period conducting of another road electronic switch docking bypasses, the positive half cycle waveform do not bypassed, just formed the direct current even-order harmonic, as shown in Figure 4.
2. subharmonic: the sine wave with the two-way electronic switch to conventional current source output is switched, two cycle conductings of No. one electronic switch offset of sinusoidal ripple, another road electronic switch docks lower two cycle conductings and bypasses, the waveform do not bypassed, just formed subharmonic, as shown in Figure 5.
3. odd harmonic: the sine wave with the two-way electronic switch to conventional current source output is switched, No. one electronic switch offset of sinusoidal ripple conducting between 90 °-180 °, conducting between 270 °-360 °, the lower waveform conducting of another road electronic switch docking bypasses, the waveform do not bypassed, just formed odd harmonic, as shown in Figure 6.
By the application of installation of above-mentioned generation harmonic wave in the certificate test device of the error effect amount of electric energy meter, without harmonic wave and having under the test condition of harmonic wave, the error change amount of electric energy meter relatively, thereby the judgement harmonic wave is on the impact of electric energy meter error.Mode of connection is by GB GB/T17215.321-2008 appendix A test connection mode, specific as follows described:
As shown in Figure 2, output IA, the IA0 of current source inputs to input end IA, the IA0 of current harmonics converter, harmonic wave end IA1, the IA01(of current harmonics converter are the two ends of first via electronic switch K1) connection standard table, calibrated meter, produce subharmonic or odd harmonic signal under the control of trigger pip control module, balance resistance end IA2, the IA02(of current harmonics converter i.e. the two ends of No. second electronic switch K2) connection balance resistance (being R1, the R2 in Fig. 1).
As shown in Figure 3, output IA, the IA0 of current source inputs to input end IA, the IA0 of current harmonics converter, harmonic wave end IA1, the IA01(of current harmonics converter are the two ends of first via electronic switch K1) the connection calibrated meter, produce the direct current even harmonics signal under the control of trigger pip control module, balance resistance end IA2, the IA02(of current harmonics converter i.e. the two ends of No. second electronic switch K2) connect balance resistance (being R1, the R2 in Fig. 1), standard scale is connected between current source and first via electronic switch K1.
Claims (3)
1. realize the current DC even-order harmonic for one kind, subharmonic, the device of odd harmonic, it is characterized in that: include current source and current harmonics converter, described current harmonics converter comprises first via electronic switch and No. second electronic switch and trigger pip control module, described current source sine wave output signal, one road signal is by first via electronic switch, another road signal is by No. second electronic switch, the control end of described first via electronic switch and No. second electronic switch is connected with two signal output parts of trigger pip control module respectively, the output of the two ends of described first via electronic switch be the direct current even-order harmonic, subharmonic or odd harmonic.
2. the device of realizing current DC even-order harmonic, subharmonic, odd harmonic according to claim 1, it is characterized in that: the two ends of described No. second electronic switch are connected with balance resistance.
3. a method that realizes current DC even-order harmonic, subharmonic, odd harmonic, it is characterized in that: by the sinusoidal wave Harmonics of Input converter of current source output, trigger pip control module in the current harmonics converter is controlled two-way electronic switch cyclic switching, two trigger pips that wherein the trigger pip control module sends are synchronizeed with the current source sinusoidal signal, control respectively two electronic switches and carry out conducting or shutoff on diverse location, the two ends of first via electronic switch output is direct current even-order harmonic, subharmonic or odd harmonic.
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| CN201310386860.9A CN103439543B (en) | 2013-08-30 | 2013-08-30 | Realize the apparatus and method of current DC even-order harmonic, subharmonic, odd harmonic |
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| CN201310386860.9A CN103439543B (en) | 2013-08-30 | 2013-08-30 | Realize the apparatus and method of current DC even-order harmonic, subharmonic, odd harmonic |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316896A (en) * | 2014-10-28 | 2015-01-28 | 国家电网公司 | Method for calibrating errors of electric energy meter under influence of direct currents and even-order harmonic |
| CN104698425A (en) * | 2015-03-27 | 2015-06-10 | 国家电网公司 | Automatic load matching method of DC even harmonic test of electric energy meter |
| CN105425199A (en) * | 2015-11-27 | 2016-03-23 | 深圳市科陆驱动技术有限公司 | Apparatus and method of direct-current even harmonic influence experiment of electric energy meter |
| CN105738705A (en) * | 2016-04-08 | 2016-07-06 | 西南交通大学 | Harmonic wave impedance measuring device and measuring method for traction power supply system |
| CN106501754A (en) * | 2016-10-19 | 2017-03-15 | 浙江恩鸿电子有限公司 | The direct current of three-phase electric energy meter and the experimental rig of even-order harmonic influence amount |
| CN107102183A (en) * | 2017-06-20 | 2017-08-29 | 海盐新跃电器有限公司 | A kind of circuit for controlling hardware detection waveform to export and its physics on-off method |
| WO2019076164A1 (en) * | 2017-10-16 | 2019-04-25 | 广东东方电讯科技有限公司 | Waveform splitter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2458635Y (en) * | 2000-10-16 | 2001-11-07 | 北京超科力源电力技术有限公司 | Multifunctional harmonic powr electric source |
| CN102279294A (en) * | 2011-08-25 | 2011-12-14 | 江苏德顺祥电气有限公司 | Current harmonic generation device with self-compensating function |
| CN203396801U (en) * | 2013-08-30 | 2014-01-15 | 郑州三晖电气股份有限公司 | Device for achieving current harmonic and detection and testing device for error influence quantity of watt-hour meter |
-
2013
- 2013-08-30 CN CN201310386860.9A patent/CN103439543B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2458635Y (en) * | 2000-10-16 | 2001-11-07 | 北京超科力源电力技术有限公司 | Multifunctional harmonic powr electric source |
| CN102279294A (en) * | 2011-08-25 | 2011-12-14 | 江苏德顺祥电气有限公司 | Current harmonic generation device with self-compensating function |
| CN203396801U (en) * | 2013-08-30 | 2014-01-15 | 郑州三晖电气股份有限公司 | Device for achieving current harmonic and detection and testing device for error influence quantity of watt-hour meter |
Non-Patent Citations (2)
| Title |
|---|
| XUANWEI ZHU等: "Harmonic Generator", 《2012 INTERNATIONAL CONFERENCE ON IMAGE ANALYSIS AND SIGNAL PROCESSING》 * |
| 张春霞等: "基于SHE的特定谐波发生装置设计", 《湖北大学学报（自然科学版）》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316896A (en) * | 2014-10-28 | 2015-01-28 | 国家电网公司 | Method for calibrating errors of electric energy meter under influence of direct currents and even-order harmonic |
| CN104698425A (en) * | 2015-03-27 | 2015-06-10 | 国家电网公司 | Automatic load matching method of DC even harmonic test of electric energy meter |
| CN105425199A (en) * | 2015-11-27 | 2016-03-23 | 深圳市科陆驱动技术有限公司 | Apparatus and method of direct-current even harmonic influence experiment of electric energy meter |
| CN105425199B (en) * | 2015-11-27 | 2019-01-22 | 深圳市科陆驱动技术有限公司 | A kind of electric energy meter direct current even-order harmonic influences the device and method of experiment |
| CN105738705A (en) * | 2016-04-08 | 2016-07-06 | 西南交通大学 | Harmonic wave impedance measuring device and measuring method for traction power supply system |
| CN105738705B (en) * | 2016-04-08 | 2019-03-22 | 西南交通大学 | The measurement method of tractive power supply system harmonic impedance |
| CN106501754A (en) * | 2016-10-19 | 2017-03-15 | 浙江恩鸿电子有限公司 | The direct current of three-phase electric energy meter and the experimental rig of even-order harmonic influence amount |
| CN106501754B (en) * | 2016-10-19 | 2023-05-02 | 浙江恩鸿电子有限公司 | Test device for direct current and even harmonic influence quantity of three-phase electric energy meter |
| CN107102183A (en) * | 2017-06-20 | 2017-08-29 | 海盐新跃电器有限公司 | A kind of circuit for controlling hardware detection waveform to export and its physics on-off method |
| WO2019076164A1 (en) * | 2017-10-16 | 2019-04-25 | 广东东方电讯科技有限公司 | Waveform splitter |
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