CN202749816U - Reactive power and harmonic wave generation device simulating intermediate frequency furnace - Google Patents
Reactive power and harmonic wave generation device simulating intermediate frequency furnace Download PDFInfo
- Publication number
- CN202749816U CN202749816U CN2012201583935U CN201220158393U CN202749816U CN 202749816 U CN202749816 U CN 202749816U CN 2012201583935 U CN2012201583935 U CN 2012201583935U CN 201220158393 U CN201220158393 U CN 201220158393U CN 202749816 U CN202749816 U CN 202749816U
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- cabinet
- intermediate frequency
- harmonic wave
- reactive power
- control device
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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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Abstract
The utility model provides a reactive power and harmonic wave generation device simulating an intermediate frequency furnace. The device comprises a cabinet (2), wire holes (4) arranged on the back of the cabinet (1), cabinet doors (2) mounted on the cabinet (1), heat-dissipation holes arranged on a lower part of the cabinet doors (2), and an instrument board (5) and a control panel (6) which are arranged on an upper part of the cabinet doors (2). The device is characterized in that a rectification control apparatus (7) for controlling a direct-current load (9) is mounted on a middle part of the cabinet (1) and is connected with the direct-current load (9) which is arranged at a lower part of the cabinet (1); an auxiliary control apparatus (8) is mounted on the rectification control apparatus (7); and the instrument board (5) and the control panel (6) are connected with the auxiliary control apparatus (8). The reactive power and harmonic wave generation device can effectively simulates load characters of the intermediate frequency furnace and has the advantages of stable operation, simple structure, convenient use, high simulation similarity and low active consumption, providing high economic benefits.
Description
Technical field
The utility model belongs to the power engineering apparatus field, relates in particular to a kind of power system simulation generating means.
Background technology
In electric power system, many power consumption equipments are all according to electromagnetic induction principle work, and such as distribution transformer, motor etc., they all are to rely on to set up conversion and the transmission that alternating magnetic field just can carry out energy.Be called reactive power for setting up alternating magnetic field and respond to magnetic flux the electrical power that needs, therefore, so-called " idle " is not the electrical power of " useless ", just its power is not converted into mechanical energy, heat energy, therefore in electricity supplying and using system except the meritorious power supply of needs, also need reactive power source, both are indispensable.
Harmonic wave refers to that frequency contained in the electric current is the electric weight of the integral multiple of first-harmonic, refers to that generally periodic non-sine electric weight is carried out Fourier series to be decomposed, and remainder is greater than the electric weight of the electric current generation of fundamental frequency.Because the AC network active constituent is the power frequency single-frequency, therefore any composition different from work frequency can be referred to as harmonic wave.Harmonic wave is that the fundamental current distorted produces because sinusoidal voltage stresses on nonlinear load.Main nonlinear load has UPS, Switching Power Supply, rectifier, frequency converter, inverter etc.
Intermediate frequency furnace is a kind of supply unit that power frequency 50HZ alternating current is changed into intermediate frequency (300HZ is above to 1000HZ), the three-phase main-frequency alternating current, become direct current after the rectification, again direct current is become adjustable electric current of intermediate frequency, supply is by the intermediate frequency alternating current that flows through in electric capacity and the induction coil, in induction coil, produce the highdensity magnetic line of force, and the metal material that holds in the cutting induction coil, very large eddy current in metal material, produced.The intermediate frequency furnace that uses at present, because normal operation and the electric power efficiency of the electric power system that the reactive power that itself produces and harmonic wave can affect intermediate frequency furnace and place thereof, therefore the dynamic passive compensation that uses for intermediate frequency furnace and harmonic treating apparatus need an analogue means close with the intermediate frequency furnace load characteristic carry out functional action and test when delivery test.This type of analogue means is still a blank in present domestic relevant industries, be subjected to the harmonic wave interference loss larger such as power consumption equipments such as intermediate frequency furnaces, affects economic benefit.
Summary of the invention
In order to overcome the above problems, the utility model provides effectively analog intermediate frequency stove load characteristic, working stability, structure is simpler, the reactive power of a kind of analog intermediate frequency stove easy to use and the generating means of harmonic wave, comprise cabinet, the line hole that the cabinet rear portion arranges, be installed in the cabinet door on the cabinet, be opened in the thermovent of cabinet door bottom, be arranged on instrument board and the control panel on cabinet door top, it is characterized in that described cabinet middle part is equipped with the rectifier control device of control DC load, described rectifier control device is connected with the DC load that is arranged on the cabinet bottom, at described rectifier control device sub controlling unit is installed, above-mentioned instrument board and control panel are connected with described sub controlling unit.
Described rectifier control device is chosen Siemens 6RA70 direct current speeder, adopts three-phase bridge silicon controlled rectifier mode.
Described DC load is selected dc flat-wave reactor.
Described control panel comprises control button and circuit breaker.
Described control button comprises button and light-emitting diode, it is characterized in that Light-Emitting Diode is arranged on key inside, and described Light-Emitting Diode is connected with the circuit loop of sub controlling unit.
The beneficial effects of the utility model are: rectifier control device and sub controlling unit organically combine, division of labor running, realized the dynamic regulation to analogue means, and ensure that this device is when breaking down, can in time stop by above-mentioned design, improve the fail safe that equipment uses, prolonged useful life, reduced unnecessary loss.Cabinet adopts the design of double door stretched pass-through type, under the prerequisite that guarantees each element normal operation of device interior, has simplified device structure, makes operating repairs convenient, has improved man efficiency.Effectively simpler, easy to use, the simulation similarity of analog intermediate frequency stove load characteristic, working stability, structure is high, meritorious consumes littlely for the utility model, has higher economic benefit.
Description of drawings
Fig. 1 is internal structure schematic diagram of the present utility model;
Fig. 2 is front view of the present utility model;
Fig. 3 is rearview figure of the present utility model;
Fig. 4 is rectifier control device circuit theory diagrams of the present utility model;
Fig. 5 is that rectifier control device circuit loop operating mode of the present utility model is set schematic diagram;
Fig. 6 is sub controlling unit circuit theory diagrams of the present utility model;
Fig. 7 is DC load circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further explained, such as Fig. 1 and Fig. 2,1-cabinet, 2-cabinet door, 3-thermovent, 4-line hole, 5-instrument board, 6-control panel, 7-rectifier control device, 8-sub controlling unit, 9-DC load, 10-control button, 11-circuit breaker, 12-button, 13-light-emitting diode.
According to illustrated in figures 1 and 2, cabinet 1 adopts the design of double door stretched pass-through type, wired hole 4 is offered at cabinet 1 rear portion, cabinet 1 front connecting cabinet door 2, cabinet door 2 bottoms are provided with thermovent 3, these cabinet door 2 tops are provided with instrument board 5 and control panel 6, rectifier control device 7 is installed at cabinet 1 middle part, described rectifier control device 7 is connected with the DC load 9 that is arranged on cabinet 1 bottom, at described rectifier control device 7 sub controlling unit 8 is installed, above-mentioned instrument board 5 and control panel 6 are connected with described sub controlling unit 8.
Described control button 10 comprises button 12 and light-emitting diode 13, this Light-Emitting Diode 13 is arranged on button 12 inside, button 12 can be selected according to its actual functional capability the different colours such as red, yellow, and green, and described Light-Emitting Diode 13 is connected with the circuit loop of sub controlling unit 8.
According to Fig. 4 and shown in Figure 5, described rectifier control device 7, preferred, choose Siemens 6RA70 direct current speeder, adopt three-phase bridge silicon controlled rectifier mode.
According to Fig. 5, Fig. 6 and shown in Figure 7, AC power is by three terminals inputs of U, V, W, wherein lead up to QFO be connected reactance after the access control loop, commutating circuit is accessed by QF1 in another road.
Start the idle and harmonic wave generating device of analog intermediate frequency stove by the S1 of sub controlling unit 8 circuit loops.Switch different control modes with the S2 knob.
The output trigger impulse of outside given current settings 6RA70 by rectifier control device 7 circuit loops is controlled the silicon controlled angle of flow by trigger impulse.According to the difference of trigger angle, reactive power and the Harmonic Conditions of analog intermediate frequency stove different operating state.
Claims (5)
1. the generating means of the reactive power of an analog intermediate frequency stove and harmonic wave, comprise cabinet (1), the line hole (4) that cabinet (1) rear portion arranges, be installed in the cabinet door (2) on the cabinet (1), be opened in the thermovent (3) of cabinet door (2) bottom, be arranged on instrument board (5) and the control panel (6) on cabinet door (2) top, it is characterized in that described cabinet (1) middle part is equipped with the rectifier control device (7) of control DC load (9), described rectifier control device (7) is connected with the DC load (9) that is arranged on cabinet (1) bottom, at described rectifier control device (7) sub controlling unit (8) is installed, above-mentioned instrument board (5) and control panel (6) are connected with described sub controlling unit (8).
2. the generating means of the reactive power of a kind of analog intermediate frequency stove as claimed in claim 1 and harmonic wave is characterized in that described rectifier control device (7) chooses Siemens 6RA70 direct current speeder, adopts three-phase bridge silicon controlled rectifier mode.
3. the generating means of the reactive power of a kind of analog intermediate frequency stove as claimed in claim 1 and harmonic wave is characterized in that described DC load (9) selection dc flat-wave reactor.
4. the generating means of the reactive power of a kind of analog intermediate frequency stove as claimed in claim 1 and harmonic wave is characterized in that described control panel (6) comprises control button (10) and circuit breaker (11).
5. the generating means of the reactive power of a kind of analog intermediate frequency stove as claimed in claim 4 and harmonic wave, it is characterized in that described control button (10) comprises button (12) and light-emitting diode (13), light-emitting diode (13) is arranged on button (12) inside, and described light-emitting diode (13) is connected with the circuit loop of sub controlling unit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201583935U CN202749816U (en) | 2012-04-16 | 2012-04-16 | Reactive power and harmonic wave generation device simulating intermediate frequency furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201583935U CN202749816U (en) | 2012-04-16 | 2012-04-16 | Reactive power and harmonic wave generation device simulating intermediate frequency furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202749816U true CN202749816U (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201583935U Expired - Fee Related CN202749816U (en) | 2012-04-16 | 2012-04-16 | Reactive power and harmonic wave generation device simulating intermediate frequency furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202749816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105722351A (en) * | 2015-12-30 | 2016-06-29 | 北京金日创科技股份有限公司 | Frequency conversion speed regulation cabinet |
-
2012
- 2012-04-16 CN CN2012201583935U patent/CN202749816U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105722351A (en) * | 2015-12-30 | 2016-06-29 | 北京金日创科技股份有限公司 | Frequency conversion speed regulation cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20180416 |