CN204089610U - 1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device - Google Patents
1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device Download PDFInfo
- Publication number
- CN204089610U CN204089610U CN201420435228.9U CN201420435228U CN204089610U CN 204089610 U CN204089610 U CN 204089610U CN 201420435228 U CN201420435228 U CN 201420435228U CN 204089610 U CN204089610 U CN 204089610U
- Authority
- CN
- China
- Prior art keywords
- unit
- capacitance group
- thin
- film capacitor
- bus bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of 1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device, its composition comprises thin-film capacitor (1), thin-film capacitor support (2), capacitance group stack bus bar (3), IGBT module (4), module laminate busbar (5), radiating tube (6), input copper bar (7), exports copper bar (8), Hall element (9), flameproof enclosure (10).This RHVC is divided into PWM rectification unit, flat ripple unit and inversion unit, and PWM rectification unit and inversion unit all adopt IGBT module, and flat ripple unit is that two capacitance group are formed, and each capacitance group is 2 strings 9 thin-film capacitor compositions also.PWM rectification unit is connected by the stack bus bar of the stack bus bar on IGBT with the capacitance group of flat ripple unit with each of inversion unit, is conducive to reducing the stray inductance on circulation loop, suppresses dv/dt, thus reduces to turn off the peak voltage caused.The utility model have that structure is simple, reliability is high and significantly harmonic reduction on features such as the impacts of electrical network.
Description
Technical field
The utility model relates to a kind of underground coal mine winch RHVC, is a kind of 1140V/630KW four-quadrant explosion-proof frequency conversion speed regulating device specifically.
Background technology
At eighties of last century late nineteen eighties, ac variable frequency speed regulation has climbed up the arena of history of industrial drive speed-adjusting mode gradually.Frequency control has very large advantage, this kind of AC speed-regulating mode making frequency control become the most rising in speed adjustable range, adjusting speed accuracy, operating efficiency, control, use etc.
Two quadrant frequency converters adopt diode rectifier bridge that AC conversion is become direct current, then adopt IGBT inversion transformation technique direct current to be changed into all adjustable alternating current of electric voltage frequency and control alternating current motor.This frequency converter can only be operated in motoring condition, cannot realize the two-way flow of energy, so have no idea send the energy of motor feedback system back to electrical network.Want in the application of feedback energy at some motor, such as elevator, hoister system, resistance braking unit can only be increased on two quadrant frequency converters, the energy ezpenditure of electromotor feedback is fallen.In addition, in some powerful application, diode rectifier bridge produces serious harmonic pollution to electrical network.
IGBT power model can realize the two-way flow of energy, if adopt IGBT to do rectifier bridge, produces PWM control impuls with the DSP of high speed, high operational capability.The power factor of input can be adjusted on the one hand, eliminate the harmonic pollution to electrical network, allow frequency converter really become " green product ".The energy that electromotor feedback can be produced on the other hand is counter delivers to electrical network, reaches energy-saving effect thoroughly.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model proposes a kind of structure simple, can significantly harmonic reduction on the impact of electrical network, explosion-proof frequency conversion speed regulating device that reliability is high.
The utility model 1140V/630 kW four-quadrant explosion-proof frequency conversion speed regulating device, its composition comprises: thin-film capacitor 1, thin-film capacitor support 2, capacitance group stack bus bar 3, IGBT module 4, module laminate busbar 5, radiating tube 6, input copper bar 7, output copper bar 8, Hall element 9, flameproof enclosure 10.
The utility model is divided into according to operation principle: PWM rectification unit, flat ripple unit and inversion unit.PWM rectification unit and inversion unit all adopt IGBT module 4, IGBT module 4 is connected with module laminate busbar 5, flat ripple unit is that two capacitance group are formed, each capacitance group is that 2 strings 9 thin-film capacitor 1 also forms, thin-film capacitor 1 is connected with capacitance group stack bus bar 3, capacitance group stack bus bar 3 is laid on thin-film capacitor 1, and capacitance group is fixed on substrate by thin-film capacitor support 2.R, S, the T-phase of PWM rectification unit are connected with capacitance group stack bus bar 3 respectively with the module laminate busbar 5 of inversion unit U, V, W phase, be conducive to reducing the stray inductance on circulation loop, suppress dv/dt, thus reduce to turn off the peak voltage caused, extend the useful life of IGBT module 4.
Accompanying drawing explanation
Fig. 1 is 1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device composition structural representation;
In figure: 1, thin-film capacitor, 2, thin-film capacitor support, 3, capacitance group stack bus bar, 4, IGBT module, 5, module laminate busbar, 6, radiating tube, 7, input copper bar, 8, export copper bar, 9, Hall element, 10, flameproof enclosure.
Fig. 2 is 1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device operation principle structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device as shown in Figure 1, its composition comprises: thin-film capacitor 1, thin-film capacitor support 2, capacitance group stack bus bar 3, IGBT module 4, module laminate busbar 5, radiating tube 6, input copper bar 7, output copper bar 8, Hall element 9, flameproof enclosure 10.
The utility model is divided into according to operation principle: PWM rectification unit, flat ripple unit and inversion unit.Wherein: PWM rectification unit is made up of six IGBT module 4, two IGBT module 4 form a phase, and three-phase is respectively R, S, T, often above lay module laminate busbar 5 mutually, for connecting the capacitance group stack bus bar 3 of flat ripple unit.Input copper bar 7 is connected with three-phase R, S, T of PWM rectification unit by Hall element 9.
Flat ripple unit is made up of two capacitance group, and each capacitance group is made up of 2 strings 9 thin-film capacitor 1 also, and capacitance group stack bus bar 3 is laid on thin-film capacitor 1, and for inverter side provides DC power supply, capacitance group is fixed on substrate by thin-film capacitor support 2.
Inversion unit is made up of six IGBT module 4, and two IGBT module 4 form a phase, and three-phase is respectively U, V, W, often above lays module laminate busbar 5 mutually, for connecting the capacitance group stack bus bar 3 of flat ripple unit.Export copper bar 8 to be connected with three-phase U, V, W of inversion unit by Hall element 9.
The IGBT module 4 of PWM rectification unit and inversion unit is arranged on substrate, radiating tube 6 is equipped with at the back side of substrate, for the heat radiation of whole RHVC, with bolt, substrate is fixed on flameproof enclosure 10, flameproof enclosure 10 material generally can adopt cast steel, aluminium alloy, stainless steel, plastics, pottery, fiberglass and high strength composite, adopt the quick operating valve of zigzag faying face structure, be convenient to safeguard.
PWM rectification unit, flat ripple unit are connected with the form of inversion unit by stack bus bar by the utility model, the surface area of stack bus bar is more conducive to air flowing, better heat-radiation effect, reduce dust accumulation and cause creepage puncturing, increase aesthetics, be conducive to reducing the stray inductance on circulation loop, suppress dv/dt, thus reduce to turn off the peak voltage caused, extend the useful life of IGBT module 4.
Claims (3)
1. 1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device, is characterized in that: comprise thin-film capacitor (1), thin-film capacitor support (2), capacitance group stack bus bar (3), IGBT module (4), module laminate busbar (5), radiating tube (6), input copper bar (7), export copper bar (8), Hall element (9), flameproof enclosure (10); This RHVC is divided into PWM rectification unit, flat ripple unit and inversion unit; PWM rectification unit and inversion unit all adopt IGBT module (4), IGBT module (4) is connected with module laminate busbar (5), flat ripple unit is that two capacitance group are formed, each capacitance group is 2 strings 9 thin-film capacitor (1) compositions also, thin-film capacitor (1) is connected with capacitance group stack bus bar (3), capacitance group stack bus bar (3) is laid on thin-film capacitor (1), and capacitance group is fixed on substrate by thin-film capacitor support (2); R, S, the T-phase of PWM rectification unit are connected with capacitance group stack bus bar (3) respectively with the module laminate busbar (5) of inversion unit U, V, W phase.
2. 1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device according to claim 1, it is characterized in that: described PWM rectification unit is made up of six IGBT module (4), two IGBT module (4) form a phase, three-phase is respectively R, S, T, every upper laying module laminate busbar (5) mutually, for connecting the capacitance group stack bus bar (3) of flat ripple unit, input copper bar (7) is connected with three-phase R, S, T of PWM rectification unit by Hall element (9).
3. 1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device according to claim 1, it is characterized in that: described inversion unit is made up of six IGBT module (4), two IGBT module (4) form a phase, three-phase is respectively U, V, W, every upper laying module laminate busbar (5) mutually, for connecting the capacitance group stack bus bar (3) of flat ripple unit, exporting copper bar (8) and being connected with three-phase U, V, W of inversion unit by Hall element (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435228.9U CN204089610U (en) | 2014-08-04 | 2014-08-04 | 1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435228.9U CN204089610U (en) | 2014-08-04 | 2014-08-04 | 1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204089610U true CN204089610U (en) | 2015-01-07 |
Family
ID=52182276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420435228.9U Active CN204089610U (en) | 2014-08-04 | 2014-08-04 | 1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204089610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346775A (en) * | 2021-07-19 | 2021-09-03 | 广东电网有限责任公司 | AC-DC conversion device and electrical equipment |
-
2014
- 2014-08-04 CN CN201420435228.9U patent/CN204089610U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346775A (en) * | 2021-07-19 | 2021-09-03 | 广东电网有限责任公司 | AC-DC conversion device and electrical equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101425756B (en) | DC lateral voltage controllable 4 quadrant frequency transformer and method thereof | |
| CN101499771A (en) | Frequency-changing speed-regulating driver for energy feedback three phase motor with three phase electric power | |
| CN101615884A (en) | The cascade speed regulator with high power factor of phase-shifting chopped waves | |
| CN102263414A (en) | Electrical energy changer and system | |
| CN101534063A (en) | Cascade connection polyphase converter | |
| CN201956961U (en) | Energy feedback device based on power unit cascade type high voltage frequency converter | |
| CN102255550B (en) | Power supply splitting phase device based on three-phase bridge inverter circuit and control method thereof | |
| CN105226957A (en) | A kind of three-phase-single-phase potential device of no industrial frequency transformer | |
| CN108242816A (en) | A kind of Three-Phase Parallel multi-functional converter and its method of work | |
| CN205051584U (en) | Three -phase - single -phase potential device of no frequency transformer | |
| CN202085085U (en) | Large power efficient energy-consuming high frequency switch power supply | |
| CN203278663U (en) | High-voltage matrix converter | |
| CN201699603U (en) | High frequency power supply for monocrystalline silicon furnace | |
| CN102290807B (en) | Small-sized wind power generation controller with wide voltage input range | |
| CN204559459U (en) | A kind of power control circuit for lift | |
| CN204089610U (en) | 1140V/630kW four-quadrant explosion-proof frequency conversion speed regulating device | |
| CN103178720A (en) | High-voltage matrix converter | |
| CN104883103A (en) | Composite circuit integrating rectification, active filtering and energy consumption braking and control method thereof | |
| CN201041997Y (en) | Middle voltage frequency conversion speed-adjustable device for wind blower and water pump | |
| CN201414072Y (en) | Converter with variable voltage-class constant power output | |
| CN202841050U (en) | Cascaded high-voltage inverter speed regulating system with energy feedback function | |
| CN202663287U (en) | Fast discharging protective circuit of direct-current capacitor | |
| CN201869080U (en) | Flywheel energy storage motor device with changeable power supply structure | |
| CN201533243U (en) | Alternating current drive system | |
| CN103754119A (en) | AC-DC electric locomotive braking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063020 Torch Road, Tangshan City high tech Zone, Hebei, No. 183 Patentee after: CITIC HIC KAICHENG INTELLIGENCE EQUIPMENT CO., LTD. Address before: 063020 Torch Road, Tangshan City high tech Zone, Hebei, No. 183 Patentee before: Tangshan Kaicheng Electronic Control Equipment Group Co., Ltd. |