CN203086350U - Mining large power three-level converter - Google Patents
Mining large power three-level converter Download PDFInfo
- Publication number
- CN203086350U CN203086350U CN 201220686587 CN201220686587U CN203086350U CN 203086350 U CN203086350 U CN 203086350U CN 201220686587 CN201220686587 CN 201220686587 CN 201220686587 U CN201220686587 U CN 201220686587U CN 203086350 U CN203086350 U CN 203086350U
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- power
- contactor
- vacuum
- converter
- level converter
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Abstract
The utility model belongs to the large power three-level converter, especially relates to a mining large power three-level converter capable of speed adjusting and energy saving. The mining large power three-level converter comprises a double-channel isolation switch and a double-channel vacuum AC contactor, between which is disposed a power supply filter. The vacuum AC contactor is connected with a power converter. A converter control unit connected with the vacuum AC contactor and the power converter is also provided. The double-channel isolation switch, the double-channel vacuum AC contactor, the power supply filter, the power converter, and the converter control unit are disposed in an explosion-proof housing, an outer side of which is provided with a heat dissipation system. The mining large power three-level converter is advantageous in that the frequency conversion starting and stopping function and the speed adjusting operation function can be provided; the harmonic wave distortion of the network side current and the harmonic wave distortion of the output outside voltage can be reduced; good energy saving effect can be provided; the overload protection function, the phase failure protection function, the short circuit protection function, the overvoltage protection function, the under-voltage protection function, and the overheat protection function can be provided.
Description
Technical field
The utility model belongs to high-power three-level converter, particularly a kind of mining energy-conservation mining three-level converter of adjustable speed.
Background technology
Along with improving constantly of coal in China production automation degree, brought into play good speed adjusting performance and energy-saving and cost-reducing effect during the speed governing of mine explosion-suppression frequency converter under coal mine used, and obtained using widely.The mine explosion-suppression frequency converter is to high voltage, high-power trend development at present.For two traditional level converters because be subjected to the withstand voltage height of switching device, harmonic wave of output voltage is big and the restriction of shortcoming such as electromagnetic noise height, can not satisfy the requirement of mine-used frequency-converter.And three-level converter can improve the power output and the electric pressure of frequency converter, compares with two level, and output harmonic wave reduces.
Summary of the invention
The utility model is at the deficiencies in the prior art, designed a kind of mining three-level converter of mining adjustable speed throttling.
The utility model is achieved through the following technical solutions:
Mining high-power three-level converter, it is characterized in that: comprise dual path isolation switch and two-way vacuum A.C. contactor, be provided with power-supply filter between described dual path isolation switch and the two-way vacuum A.C. contactor, described vacuum A.C. contactor is connected with power inverter, also comprise the convertor controls unit that is connected with power inverter with the vacuum A.C. contactor, the dual path isolation switch, two-way vacuum A.C. contactor, power-supply filter and power inverter, the convertor controls unit all is arranged on explosion-proof casing inside, and the outer setting of explosion-proof casing has cooling system; Described convertor controls unit comprises the signal processing module of gathering input, output/voltage, electric current, and the driver module of driving power device work.
Also comprise a peripheral monitoring unit; described peripheral monitoring unit comprises the Hall current sensor that is connected on the cooling system; and the Temperature Detector that is used to detect explosion-proof casing internal temperature and Power Conversion actuator temperature; also comprise a protection controller that is connected with Temperature Detector with Hall current sensor; described protection controller is connected with a display module, and display module is connected with the convertor controls unit simultaneously.
Be connected with the cooling system that is dispelled the heat in explosion-proof casing inside on the described explosion-proof casing, described cooling system comprises cooling fan and heat-pipe radiator, and described cooling fan is connected with the protection controller.
In sum, mining high-power three-level converter described in the utility model has variable frequency starting, stops, and the speed governing operation function can reduce the harmonic distortion of current on line side, outlet side voltage, realizes good energy-saving effect.Have overload, the phase failure, short circuit, overvoltage, defencive function such as under-voltage, overheated.
Description of drawings
Fig. 1 is a system architecture diagram of the present utility model;
1 is isolating switch among the figure; 2 is power-supply filter, and 3 is the vacuum A.C. contactor, and 4 is power inverter; 61 are the protection controller; 62 is Hall current sensor, and 63 is Temperature Detector, and 64 is display module; 7 is the convertor controls unit; 9 is heat-pipe radiator, and 10 is cooling fan, and 11 is explosion-resistant enclosure.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Mining high-power three-level converter as shown in Figure 1, it is characterized in that: comprise dual path isolation switch 1 and two-way vacuum A.C. contactor 2, adopt dual path isolation switch 1 in the utility model, insert the two-way three-phase alternating voltage of 30 ° of phase phasic differences in the described two-way, be provided with power-supply filter 2 between described dual path isolation switch 1 and the two-way vacuum A.C. contactor 3, described power-supply filter is used to reduce the electromagnetic interference of frequency converter to electrical network, also reduced simultaneously the interference of electrical network to frequency converter, adopt being used of isolating switch and vacuum A.C. contactor, can further improve the security performance of frequency converter, in the time of can't normally controlling the vacuum A.C. contactor automatically in the convertor controls unit, the break-make of can the manual driven isolating switch coming the control of conversion device, thus the guaranteed output converter can not damage because of electric current is excessive; Described vacuum A.C. contactor 3 is connected with power inverter 4; also comprise the convertor controls unit 7 that is connected with power inverter 4 with vacuum A.C. contactor 3; the dual path isolation switch; two-way vacuum A.C. contactor; power-supply filter and power inverter; the convertor controls unit all is arranged on explosion-proof casing 11 inside; in the explosion-proof casing that is provided with; satisfy mining requirement; the outer setting of explosion-proof casing has cooling system; described convertor controls unit comprises gathers input; output/voltage; the signal processing module of electric current; produce driving pulse; realize overvoltage; overcurrent; defencive functions such as under-voltage and phase shortage, driver module obtains the work of driving pulse driving power converter.
Also comprise a peripheral monitoring unit; described peripheral monitoring unit comprises the Hall current sensor 62 that is connected on the cooling system; be that Hall current sensor is connected on the loop of cooling fan; Hall current sensor 62 is used for the electric current of testing circuit; and the Temperature Detector 63 that is used to detect explosion-proof casing internal temperature and Power Conversion actuator temperature; Temperature Detector comprises the temperature sensor that is used to detect explosion-proof the temperature inside the box and Power Conversion actuator temperature; also comprise a protection controller 61 that is connected with Temperature Detector 63 with Hall current sensor 62; described protection controller is connected with a display module 64; display module 64 is connected with convertor controls unit 7 simultaneously; described convertor controls unit reads the size of electric current in the circuit and the size of temperature from display module; when electric current exceeds set point; converter controller will drive the vacuum A.C. contactor and disconnect, and it is too high and cause power inverter to damage to guarantee can not should be temperature.
Be connected with the cooling system that is dispelled the heat in explosion-proof casing inside on the described explosion-proof casing 11, described cooling system comprises cooling fan 10 and heat-pipe radiator 9, and described cooling fan 10 is connected with protection controller 61.Under the normal condition; the utility model dispels the heat to power inverter by heat-pipe radiator, and when Temperature Detector detects temperature when too high, the protection controller will start cooling fan; improve the heat-sinking capability of cooling system, the operate as normal of guaranteed output converter.
In sum, mining high-power three-level converter described in the utility model has variable frequency starting, stops, and the speed governing operation function can reduce the harmonic distortion of current on line side, outlet side voltage, realizes good energy-saving effect.Have overload, the phase failure, short circuit, overvoltage, defencive function such as under-voltage, overheated.
Claims (3)
1. mining high-power three-level converter, it is characterized in that: comprise dual path isolation switch and two-way vacuum A.C. contactor, be provided with power-supply filter between described dual path isolation switch and the two-way vacuum A.C. contactor, described vacuum A.C. contactor is connected with power inverter, also comprise the convertor controls unit that is connected with power inverter with the vacuum A.C. contactor, the dual path isolation switch, two-way vacuum A.C. contactor, power-supply filter and power inverter, the convertor controls unit all is arranged on explosion-proof casing inside, and the outer setting of explosion-proof casing has cooling system.
2. mining high-power three-level converter according to claim 1; it is characterized in that: also comprise a peripheral monitoring unit; described peripheral monitoring unit comprises the Hall current sensor that is connected on the cooling system; and the Temperature Detector that is used to detect explosion-proof casing internal temperature and Power Conversion actuator temperature; also comprise a protection controller that is connected with Temperature Detector with Hall current sensor; described protection controller is connected with a display module, and display module is connected with the convertor controls unit simultaneously.
3. mining high-power three-level converter according to claim 2; it is characterized in that: be connected with the cooling system that is dispelled the heat in explosion-proof casing inside on the described explosion-proof casing; described cooling system comprises cooling fan and heat-pipe radiator, and described cooling fan is connected with the protection controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220686587 CN203086350U (en) | 2012-12-12 | 2012-12-12 | Mining large power three-level converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220686587 CN203086350U (en) | 2012-12-12 | 2012-12-12 | Mining large power three-level converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203086350U true CN203086350U (en) | 2013-07-24 |
Family
ID=48832152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220686587 Expired - Fee Related CN203086350U (en) | 2012-12-12 | 2012-12-12 | Mining large power three-level converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203086350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474188A (en) * | 2018-12-29 | 2019-03-15 | 徐州中矿大传动与自动化有限公司 | Three level high-voltage high-power water-cooling frequency convertor system |
-
2012
- 2012-12-12 CN CN 201220686587 patent/CN203086350U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474188A (en) * | 2018-12-29 | 2019-03-15 | 徐州中矿大传动与自动化有限公司 | Three level high-voltage high-power water-cooling frequency convertor system |
| CN109474188B (en) * | 2018-12-29 | 2024-03-15 | 江苏国传电气有限公司 | Three-level high-voltage high-power water-cooling frequency converter system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Mining large power three-level converter Effective date of registration: 20140605 Granted publication date: 20130724 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2014990000436 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150529 Granted publication date: 20130724 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2014990000436 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Mining large power three-level converter Effective date of registration: 20150604 Granted publication date: 20130724 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2015990000434 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| 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: 20130724 Termination date: 20171212 |