CN206865359U - A kind of energy-saving multifunction simulation electrical load device - Google Patents
A kind of energy-saving multifunction simulation electrical load device Download PDFInfo
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- CN206865359U CN206865359U CN201720415631.9U CN201720415631U CN206865359U CN 206865359 U CN206865359 U CN 206865359U CN 201720415631 U CN201720415631 U CN 201720415631U CN 206865359 U CN206865359 U CN 206865359U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
A kind of energy-saving multifunction simulation electrical load device is the utility model is related to, is formed by filter unit, Devices to test access unit, energy conversion unit, multifunction electronic load unit, central control unit can be presented.Devices to test access unit is connected with that can present filter unit and multifunction electronic load unit respectively；Filter unit can be presented and multifunction electronic load unit is connected with central control unit respectively；Energy conversion unit is connected with that can present filter power supply, multifunction electronic load unit and central control unit respectively.The utility model proposes a kind of energy-saving multifunction simulation electrical load device, efficiently solve in the prior art without special energy-saving multifunction simulation electrical load device, the measuring accuracy present in electric equipment test is low, and waste of energy is serious, using having level regulation to be difficult to meet different operating modes to continuously adjust, ability, power are smaller to be easily caused device aging and burn, the technical problem such as heat endurance is poor, its load form is single for load.
Description
Technical field
Power electronics test experiments field is the utility model is related to, particularly a kind of energy-saving multifunction simulation electric loading
Device.
Background technology
The development of science and technology, modern various electric apparatus, civil electric appliance and nonlinear-loads largely access power network, cause big
Among the reactive current of amount, harmonic current injection to power network, the working environment of power network is intricate, influences each other and interferes.
The loss that these influences not only cause grid power transmission greatly increases, and makes all kinds of electrical equipment work not normal.It is moreover, existing
There is no special energy-saving multifunction simulation electricity consumption load-detecting system in technology, in electric equipment test, load is often adopted
The mode that energy consumption electric discharge is carried out with RLC impedance loads case is carried out, and not only measuring accuracy is low for this method, waste of energy is serious,
Load is difficult to meet that different operating modes continuously adjust that ability, power are smaller to be easily caused device aging and burn, heat using there is level regulation
The technical problems such as stability is poor, its load form is single.Also it can be directed to problem above simultaneously without a kind of device on the market at present
The system platform tested.
The content of the invention
The purpose of this utility model is to provide a kind of energy-saving multifunction simulation electrical load device, to overcome existing skill
Defect present in art.
To achieve the above object, the technical solution of the utility model is：A kind of energy-saving multifunction simulation is filled with electric loading
Put, including：Filter unit, Devices to test access unit, energy conversion unit, multifunction electronic load unit and center can be presented
Control unit；The Devices to test access unit can present filter unit and the multifunction electronic load unit with described respectively
It is connected；It is described to present filter unit and the multifunction electronic load unit is connected with the central control unit respectively；Institute
Filter power supply, the multifunction electronic load unit and the center control list can be presented with described respectively by stating energy conversion unit
Member is connected.
In the embodiment of the utility model one, the filter unit that can present includes：Current Transmit, service entrance switch K1,
Inlet wire A.C. contactor KM1, inlet wire pre-charge contactor KM2, inlet wire pre-charge resistance R1, inlet wire filter capacitor C1, inlet wire filter
Ripple inductance L1, the one or three level I type IGBT modules T1, the two or three level I type IGBT module T2 and the three or three level I types IGBT
Module T3；Described service entrance switch K1 one end connects power network three-phase voltage input, the other end and the first inlet wire ac contactor
Device KM1 one end and the connection of one end of the inlet wire pre-charge contactor KM2；The inlet wire pre-charge contactor KM2's is another
End is connected with described inlet wire pre-charge resistance R1 one end；The other end of the inlet wire pre-charge resistance R1 exchanges with the inlet wire to be connect
The tentaculum KM1 other end is connected, and through described inlet wire filter capacitor C1 one end, is connected to described inlet wire filter inductance L1 one end；
The other end of the inlet wire filter capacitor C1 is connected with the N wires of the power network；The other end of the inlet wire filter inductance L1 point
The one or the three level I type IGBT modules T1, the two or the three level I type IGBT module T2 and the described 3rd 3 are not connected to
Level I type IGBT modules T3.
In the embodiment of the utility model one, the multifunction electronic load unit includes three-phase isolation transformer TA, gone out
Wiretap K2, outlet A.C. contactor KM3, outlet pre-charge contactor KM4, outlet pre-charge resistance R2, outlet filter capacitor
C2, outlet filter inductance L2, the four or three level I type IGBT modules T4, the electricity of the five or three level I type IGBT module T5 and the six or three
Flat I types IGBT module T6；The three-phase isolation transformer TA three-phases end of incoming cables is connected to power network three-phase voltage input, and three-phase goes out
Line end is connected to the end of incoming cables of the outlet switch K2；The leading-out terminal of the outlet switch K2 respectively with the outlet ac contactor
Device KM3 one end and the connection of one end of the outlet pre-charge contactor KM4；The outlet pre-charge contactor KM4's is another
One end is connected with one end of the outlet pre-charge resistance R2；The other end of the outlet pre-charge resistance R2 is handed over the outlet
The stream contactor KM3 other end is connected, and through one end of the outlet filter capacitor C2, is connected to the outlet filter inductance L2
One end；N1 wire of the other end of the outlet filter inductance L2 also with the three-phase isolation transformer TA output ends is connected；
The outlet filter inductance L2 is respectively connecting to the four or the three level I type IGBT modules T4, the five or the three level I types IGBT
Module T5 and the six or the three level I type IGBT modules T6.
In the embodiment of the utility model one, the energy conversion unit includes：It is first direct current capacitors CD1, second straight
Flow capacitor CD2, the 3rd direct current capacitors CD3, the 4th direct current capacitors CD34, electric discharge D.C. contactor KM5 and electric discharge electricity
Hinder R3；The positive pole of a termination DC master row of the electric discharge D.C. contactor KM5, the one of another termination discharge resistance R3
End；The negative pole of another termination DC master row of the discharge resistance R3；The positive pole of the first direct current capacitors CD1 connects directly
The positive pole of busbar is flowed, negative pole connects the positive pole of the second direct current capacitors CD2, and the negative pole of the second direct current capacitors CD2 connects
The negative pole of the DC master row；The positive pole of the 3rd direct current capacitors CD3 connects the positive pole of the DC master row, and negative pole connects described
4th direct current capacitors CD4 positive pole；The negative pole of the 4th direct current capacitors CD4 connects the negative pole of the DC master row；It is described
N wire of the second direct current capacitors CD2 positive pole also with the power network that can be presented in filter unit is connected；4th direct current
N1 wire phase of the container CD4 positive pole also with the three-phase isolation transformer TA output ends in the multifunction electronic load unit
Even.
In the embodiment of the utility model one, the Devices to test access unit includes test switch K3 and test exchange
Contactor KM6；One end connection power network three-phase voltage input of the test switch K3, the other end and the test ac contactor
Device KM6 one end connects；The access point of the other end access Devices to test of the test A.C. contactor KM6.
In the embodiment of the utility model one, the central control unit includes：DSP circuit and respectively with the DSP electricity
The connected signal sampling in road and modulate circuit, IGBT module drive circuit, contactor control output circuit, contactor working condition
Signal input circuit and protection circuit.
In the embodiment of the utility model one, TMS320F28335 is used in the DSP circuit.
In the embodiment of the utility model one, in addition to an embedded integrated touch-screen being connected with the DSP circuit.
Compared to prior art, the utility model has the advantages that：
（1）Solve in the prior art without special energy-saving multifunction simulation electrical load device, in electrical equipment
In experiment, load often using RLC impedance loads case carry out by the way of energy consumption electric discharge, and not only measuring accuracy is low, electric energy wave
Expense is serious, load using there is level regulation to be difficult to meet different operating modes continuously adjust ability, power it is smaller easily cause device aging and
Burn, the technical problem such as heat endurance is poor, its load form is single.
（2）It can realize but be not limited to detect the idle of low-pressure reactive compensation equipment according to voltage or power factor criterion
Compensation function；The reactive power compensator product such as intelligent capacitor, SVC, SVG can be detected.
（3）The three-phase imbalance degree of regulation of detection three-phase imbalance controlling device can be realized；Three-phase imbalance controlling device
Product function etc.；
（4）The saving energy and decreasing loss evaluation function of low-voltage distribution network can be realized；The harmonic wave function of detection filter equipment is realized, is detected
Function of APF products etc..
（5）Available for all kinds of scientific research institutions, in educational institution, controllable idle, watt current are produced, harmonic current is main
To be applied to Research Center electric energy quality test mechanism, power supply correlation enterprises and institutions in one's power.
（6）Loadtype different in low-voltage network can be simulated, establishes power distribution network primary equipment efficiency test point
Platform is analysed, the influence to power distribution network primary equipment efficiency such as different loads condition, harmonic environment, tri-phase unbalance factor can be analyzed,
The energy consuming curve of various electrical equipments is obtained, establishes electric equipment test database, for opening for new low power consuming controller switching equipment
Hair has preferably guidance and practical value.
（7）It can be used to evaluate and test various practical applications or new distribution equipment, the energy consumption parameter of electrical equipment and measuring apparatus,
For formulate controller switching equipment, electrical equipment, measuring apparatus permit standard, establish and eliminate the planning of carbon isotopes, management system
Theoretical foundation and test data are provided with management method etc., there is highly important directive significance and promotional value.
Brief description of the drawings
Fig. 1 is a kind of structure chart of energy-saving multifunction simulation electrical load device in the utility model.
Fig. 2 is a kind of schematic diagram of energy-saving multifunction simulation electrical load device in the utility model.
Embodiment
Below in conjunction with the accompanying drawings and existing software or control method, the technical solution of the utility model is carried out specifically
It is bright.Involved existing software or control method are not the object that the utility model is protected in the declarative procedure, this reality
With the new structure and annexation for only protecting the device.
The utility model provides a kind of energy-saving multifunction simulation electrical load device, as shown in figure 1, including：Can feedback filter
Ripple unit, Devices to test access unit, energy conversion unit, multifunction electronic load unit, central control unit and they it
Between the wire that is connected.
Further, exchange and connect as shown in Fig. 2 filter unit can be presented and include Current Transmit, service entrance switch K1, inlet wire
Tentaculum KM1, inlet wire pre-charge contactor KM2, inlet wire pre-charge resistance R1, inlet wire filter capacitor C1, inlet wire filter inductance L1,
One or three level I type IGBT modules T1, the two or three level I type IGBT module T2 and the three or three level I type IGBT modules T3；Inlet wire
K1 one end connection power network three-phase voltage input is switched, the other end and first inlet wire A.C. contactor KM1 one end and inlet wire are pre-
Charging contactor KM2 one end connection；The inlet wire pre-charge contactor KM2 other end and inlet wire pre-charge resistance R1 one end phase
Even；The inlet wire pre-charge resistance R1 other end is connected with the inlet wire A.C. contactor KM1 other end, and through inlet wire filter capacitor C1
One end, it is connected to inlet wire filter inductance L1 one end；The inlet wire filter capacitor C1 other end is connected with the N wires of power network；Inlet wire is filtered
The ripple inductance L1 other end be respectively connecting to the one or three level I type IGBT modules T1, the two or three level I type IGBT module T2 and
Three or three level I type IGBT modules T3.
Further, energy conversion unit includes the first direct current capacitors CD1, the second direct current capacitors CD2, the 3rd direct current
Capacitor CD3, the 4th direct current capacitors CD34, electric discharge D.C. contactor KM5 and discharge resistance R3；Discharge D.C. contactor
The positive pole of a KM5 termination DC master row, another termination discharge resistance R3 one end；Discharge resistance R3 another termination direct current is female
The negative pole of row；First direct current capacitors CD1 positive pole connects the positive pole of DC master row, and negative pole is meeting the second direct current capacitors CD2 just
Pole, the second direct current capacitors CD2 negative pole connect the negative pole of DC master row；3rd direct current capacitors CD3 positive pole connects DC master row
Positive pole, negative pole connects the 4th direct current capacitors CD4 positive pole；4th direct current capacitors CD4 negative pole connects the negative pole of DC master row；
Second direct current capacitors CD2 positive pole is also connected with that can present the N wires of the power network in filter unit；4th direct current capacitors CD4
N1 wire of the positive pole also with the three-phase isolation transformer TA output ends in multifunction electronic load unit be connected.
Further, Devices to test access unit includes test switch K3 and test A.C. contactor KM6；Test switch
K3 one end connection power network three-phase voltage input, the other end are connected with test A.C. contactor KM6 one end；Test ac contactor
The access point of device KM6 other end access Devices to test.
Further, multifunction electronic load unit connects including three-phase isolation transformer TA, outlet switch K2, outlet exchange
Tentaculum KM3, outlet pre-charge contactor KM4, outlet pre-charge resistance R2, outlet filter capacitor C2, outlet filter inductance L2,
Four or three level I type IGBT modules T4, the five or three level I type IGBT module T5 and the six or three level I type IGBT modules T6；Three-phase
Isolating transformer TA three-phases end of incoming cables is connected to power network three-phase voltage input, and three-phase leading-out terminal is connected to entering for outlet switch K2
Line end；Outlet switch K2 leading-out terminal respectively with outlet A.C. contactor KM3 one end and outlet pre-charge contactor KM4
One end connects；The outlet pre-charge contactor KM4 other end is connected with outlet pre-charge resistance R2 one end；Outlet precharge electricity
The resistance R2 other end is connected with the outlet A.C. contactor KM3 other end, and through outlet filter capacitor C2 one end, is connected to out
Line filter inductance L2 one end；N1 wire phase of the outlet filter inductance L2 other end also with three-phase isolation transformer TA output ends
Even；Outlet filter inductance L2 be respectively connecting to the four or three level I type IGBT modules T4, the five or three level I type IGBT module T5 with
And the six or three level I type IGBT modules T6.
Further, for central control unit with two CSTR control core, DSP corresponds to model TMS320F28335, DSP control
Coremaking piece is used for completing the control work of whole system.Central control unit mainly includes：CPU and its peripheral circuit, signal
Sampling and modulate circuit, IGBT module drive circuit, contactor control output circuit, contactor working state signal input circuit
And protection circuit；Wherein, signal sampling mainly completes strong and weak electric isolution, level conversion and signal amplification and filter with conditioning unit
The functions such as ripple, to meet requirement of the dsp controller to each road signal level range and signal quality.
Further, human-machine operation display portion can use embedded integrated touch-screen.Human-machine operation display portion：Energy
Enough set reads device parameter, and by the Various types of data of device, alarm signal is constantly shown on liquid crystal display.
Further, the use of filter unit and multifunction electronic load unit can be presented and open up the level I of benefit structure identical three
The PWM circuits composition of type structure, and using the dc bus Support Capacitor of energy conversion unit as connecting element, energy conversion list
Member is provided with direct-current discharge circuit KM5 electric discharges D.C. contactor, R3 discharge resistances composition.
Further, the energy-saving multifunction simulation uses AC-DC-AC structures, its work structuring with electrical load device
The main dc bus Support Capacitor for including that filter unit, multifunction electronic load unit and energy conversion unit can be presented, can be presented
Filter unit mainly realizes that by grid side AC rectification be direct current（AC-DC）, multifunction electronic load unit mainly realizes
Alternating current required for the DC voltage of energy conversion unit is converted into test is fed back in AC network（DC-AC）.It is more
The peak value of alternating current, phase, frequency size are controlled by central control unit caused by function electronic load unit.Changing should
The peak value of alternating current, phase, frequency, Multi-functional analog with electrical load device can serve as exporting controllable watt current,
Inductive reactive power electric current, capacitive reactive power electric current, the comprehensive device with electric loading of harmonic current containing multiple harmonic.More work(
Energy electronic load can export more than 5 kinds different size of harmonic current values simultaneously.Export idle power factor change scope for-
It is any adjustable before 1 ~+1.
Further, when the energy-saving multifunction simulation is worked with electrical load device, closure service entrance switch K1 opens with outlet
K2 is closed, central controller sends the control instruction of precharge, KM2 inlet wires pre-charge contactor and KM4 outlet pre-charge contactors
Adhesive, fill on direct current capacitors group CD1 ~ CD4 DC voltage is raised to the peak value of line voltage, central controller sends boosting
Control instruction, inlet wire A.C. contactor KM1 and outlet A.C. contactor KM3 adhesives, pass through three level I type IGBT modules T1 ~ T3
Carry out copped wave and boost to DC bus-bar voltage to 760V boosting completions.Electricity needed for test is issued by human-machine operation display portion
Flow valuve, the electric current containing high frequency is exported by three level I type IGBT modules T4 ~ T6 of multifunction electronic load unit, by going out
Line filter inductance L2 and outlet filter capacitor C2 filters out high-frequency signal, and AC network is exported by three-phase isolation transformer TA.
Further, in the present embodiment, only need to will be tested before work when testing electrical equipment to be measured
Electrical equipment access test A.C. contactor KM6 leading-out terminal, then sets system by the human-machine operation of central control unit
Running parameter can be tested the electrical equipment, and after being completed, system control main website can complete device under test
Fail-safe analysis and efficiency test, and fail-safe analysis and efficiency test are accurate, and precision is high.
Further, when Devices to test is reactive power compensator, multifunction electronic load unit output inductive reactive power electric current,
The reactive current of Devices to test reactive power compensator output capacitive carries out reactive-load compensation, and central control unit passes through current transformer
Electric current after CT sampling Devices to test compensation, multifunction electronic load unit export reactive current with regard to that can calculate reactive-load compensation dress
The compensation effect put, when Devices to test reactive power compensator compensation effect is bad, it is idle again that side filter unit progress can be presented
Power factor is compensated as 1.It is same using test philosophy when detecting intelligent capacitor, SVC, SVG, APF, three-phase imbalance device
On.Reach the purpose for saving electric energy by the Multi-functional analog electrical load device, can be applied to Research Center's electric energy matter in one's power
Measure mechanism for testing, power supply correlation enterprises and institutions.
Above is preferred embodiment of the present utility model, all changes made according to technical solutions of the utility model are produced
Function without departing from technical solutions of the utility model scope when, belong to the scope of protection of the utility model.
Claims (8)
- A kind of 1. energy-saving multifunction simulation electrical load device, it is characterised in that including：Filter unit, Devices to test can be presented Access unit, energy conversion unit, multifunction electronic load unit and central control unit；The Devices to test access unit Respectively filter unit can be presented with described and the multifunction electronic load unit is connected；The filter unit and described of presenting Multifunction electronic load unit is connected with the central control unit respectively；The energy conversion unit is filtered with described can present respectively Ripple power supply, the multifunction electronic load unit and the central control unit are connected.
- 2. a kind of energy-saving multifunction simulation electrical load device according to claim 1, it is characterised in that described to present Filter unit includes：Current Transmit, service entrance switch K1, inlet wire A.C. contactor KM1, inlet wire pre-charge contactor KM2, enter Line pre-charge resistance R1, inlet wire filter capacitor C1, inlet wire filter inductance L1, the one or three level I type IGBT modules T1, the two or three electricity Flat I types IGBT module T2 and the three or three level I type IGBT modules T3；Described service entrance switch K1 one end connects power network three-phase voltage Input, the other end connect with described inlet wire A.C. contactor KM1 one end and one end of the inlet wire pre-charge contactor KM2 Connect；The other end of the inlet wire pre-charge contactor KM2 is connected with described inlet wire pre-charge resistance R1 one end；The inlet wire preliminary filling The resistance R1 other end is connected with the other end of the inlet wire A.C. contactor KM1, and through the inlet wire filter capacitor C1 mono- End, is connected to described inlet wire filter inductance L1 one end；The other end of the inlet wire filter capacitor C1 and the N wire phases of the power network Even；The other end of the inlet wire filter inductance L1 is respectively connecting to the one or the three level I type IGBT modules T1, the described 2nd 3 Level I type IGBT module T2 and the three or the three level I type IGBT modules T3.
- A kind of 3. energy-saving multifunction simulation electrical load device according to claim 1, it is characterised in that more work( Energy electronic load unit connects including three-phase isolation transformer TA, outlet switch K2, outlet A.C. contactor KM3, outlet precharge Tentaculum KM4, outlet pre-charge resistance R2, outlet filter capacitor C2, outlet filter inductance L2, the four or three level I type IGBT modules T4, the five or three level I type IGBT module T5 and the six or three level I type IGBT modules T6；The three-phase isolation transformer TA tri- Phase end of incoming cables is connected to power network three-phase voltage input, and three-phase leading-out terminal is connected to the end of incoming cables of the outlet switch K2；It is described Outlet switch K2 leading-out terminal one end with the outlet A.C. contactor KM3 and the outlet pre-charge contactor respectively KM4 one end connection；One end phase of the other end of the outlet pre-charge contactor KM4 and the outlet pre-charge resistance R2 Even；The other end of the outlet pre-charge resistance R2 is connected with the other end of the outlet A.C. contactor KM3, and goes out described in warp Line filter capacitor C2 one end, it is connected to one end of the outlet filter inductance L2；The other end of the outlet filter inductance L2 N1 wires also with the three-phase isolation transformer TA output ends are connected；The outlet filter inductance L2 is respectively connecting to described Four or three level I type IGBT modules T4, the five or the three level I type IGBT module T5 and the six or the three level I type IGBT moulds Block T6.
- A kind of 4. energy-saving multifunction simulation electrical load device according to claim 1, it is characterised in that the energy Converting unit includes：First direct current capacitors CD1, the second direct current capacitors CD2, the 3rd direct current capacitors CD3, the 4th direct current Container CD34, electric discharge D.C. contactor KM5 and discharge resistance R3；A termination direct current of the electric discharge D.C. contactor KM5 is female The positive pole of row, another termination discharge resistance R3 one end；Another termination DC master row of the discharge resistance R3 Negative pole；The positive pole of the first direct current capacitors CD1 connects the positive pole of DC master row, and negative pole meets the second direct current capacitors CD2 Positive pole, the negative pole of the second direct current capacitors CD2 connects the negative pole of the DC master row；The 3rd direct current capacitors CD3 Positive pole connect the positive pole of the DC master row, negative pole connects the positive pole of the 4th direct current capacitors CD4；4th DC capacitor Device CD4 negative pole connects the negative pole of the DC master row；The positive pole of the second direct current capacitors CD2 can also present filtering list with described The N wires of power network in member are connected；The positive pole of the 4th direct current capacitors CD4 also with the multifunction electronic load unit The N1 wires of three-phase isolation transformer TA output ends be connected.
- 5. a kind of energy-saving multifunction simulation electrical load device according to claim 1, it is characterised in that described to be measured Equipment access unit includes test switch K3 and test A.C. contactor KM6；One end connection power network of the test switch K3 Three-phase voltage input, the other end are connected with described test A.C. contactor KM6 one end；The test A.C. contactor KM6's The other end accesses the access point of Devices to test.
- A kind of 6. energy-saving multifunction simulation electrical load device according to claim 1, it is characterised in that the center Control unit includes：DSP circuit and the signal sampling being connected respectively with the DSP circuit drive with modulate circuit, IGBT module Circuit, contactor control output circuit, contactor working state signal input circuit and protection circuit.
- A kind of 7. energy-saving multifunction simulation electrical load device according to claim 6, it is characterised in that the DSP TMS320F28335 is used in circuit.
- 8. a kind of energy-saving multifunction simulation electrical load device according to claim 6, it is characterised in that also including one The embedded integrated touch-screen being connected with the DSP circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720415631.9U CN206865359U (en) | 2017-04-20 | 2017-04-20 | A kind of energy-saving multifunction simulation electrical load device |
Applications Claiming Priority (1)
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Cited By (4)
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| CN106998147A (en) * | 2017-04-20 | 2017-08-01 | 国网福建省电力有限公司 | A kind of energy-saving multifunction simulation electrical load device and its control method |
| CN108519531A (en) * | 2018-04-28 | 2018-09-11 | 国网福建省电力有限公司电力科学研究院 | A kind of low-voltage distribution network connection in series-parallel equipment testing device and its test method |
| CN109194163A (en) * | 2018-09-30 | 2019-01-11 | 广西南宁市晨启科技有限责任公司 | A kind of three-phase unsteady flow experiement control device and its experiment control method |
| CN110198051A (en) * | 2019-07-02 | 2019-09-03 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of aircraft electrical power system high voltage direct current nonlinear load simulator |
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| CN106998147A (en) * | 2017-04-20 | 2017-08-01 | 国网福建省电力有限公司 | A kind of energy-saving multifunction simulation electrical load device and its control method |
| CN106998147B (en) * | 2017-04-20 | 2023-12-22 | 国网福建省电力有限公司 | Energy-saving multifunctional simulated electricity load device and control method thereof |
| CN108519531A (en) * | 2018-04-28 | 2018-09-11 | 国网福建省电力有限公司电力科学研究院 | A kind of low-voltage distribution network connection in series-parallel equipment testing device and its test method |
| CN108519531B (en) * | 2018-04-28 | 2024-01-19 | 国网福建省电力有限公司电力科学研究院 | Testing device and testing method for low-voltage distribution network series-parallel equipment |
| CN109194163A (en) * | 2018-09-30 | 2019-01-11 | 广西南宁市晨启科技有限责任公司 | A kind of three-phase unsteady flow experiement control device and its experiment control method |
| CN109194163B (en) * | 2018-09-30 | 2023-11-28 | 广西南宁市晨启科技有限责任公司 | Three-phase variable current experiment control device and experiment control method thereof |
| CN110198051A (en) * | 2019-07-02 | 2019-09-03 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of aircraft electrical power system high voltage direct current nonlinear load simulator |
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