CN203942323U - A kind of mining high-capacity lead-acid storage battery intelligent charger system - Google Patents
A kind of mining high-capacity lead-acid storage battery intelligent charger system Download PDFInfo
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- CN203942323U CN203942323U CN201420309163.3U CN201420309163U CN203942323U CN 203942323 U CN203942323 U CN 203942323U CN 201420309163 U CN201420309163 U CN 201420309163U CN 203942323 U CN203942323 U CN 203942323U
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Abstract
The utility model discloses a kind of mining high-capacity lead-acid storage battery intelligent charger system, comprise: for selecting the contactor of alternating current source, be connected the three-phase bridge rectification circuit for rectification with contactor, be connected the single-phase high frequency inverter circuit for inversion with three-phase bridge rectification circuit, be connected the high frequency transformer for transformation with single-phase high frequency inverter circuit, be connected the single-phase high frequency rectification circuit for high-frequency rectification with high frequency transformer, be connected the voltage detecting circuit for detection of voltage with single-phase high frequency rectification circuit, be connected the current detection circuit for detection of electric current with single-phase high frequency rectification circuit, the control circuit module being connected with current detection circuit with voltage detecting circuit, the driver module being connected with control circuit module, voltage detection module, display circuit and keyboard circuit.This system can be carried out high frequency charging to storage battery, adapts to the storage battery of different performance, has good battery charging and battery management function.
Description
Technical field
The utility model belongs to battery management field, relates in particular to a kind of mining high-capacity lead-acid storage battery intelligent charger system.
Background technology
The needed power resources of large coal mine winning apparatus such as the coal conveyor under coal mine, forklift are all generally lead-acid batteries, by a plurality of single-unit storage batterys, are in series and are formed.The capacity of lead-acid batteries is from 200Ah-1000Ah, and storage battery is realized energy recycling by charging, and the equipment of realizing battery charging is exactly charger apparatus, and its capacity is from tens to hundreds of kVA, and charging interval majority is in 8 hours.Colliery accumulator group charger device used is very extensive at present, a large coal mine of producing approximately 1,000 ten thousand tons per year, approximately more than 100, the accumulator group charger device of capacity used more than hundreds of kVA.The overhaul rules regulation of colliery electrical equipment, the service life of charger apparatus is that 3,000,000 tons of coals of every production just enter the overhaul phase (the main element replacing or the complete machine that mean device are changed completely).
By to deifying the investigation of several large coal mines of coalfield group, large-capacity battery group charging device under the coal mine of current capacity more than hundreds of kVA, most dependence on import, as the equipment of the U.S., Germany, and be the technology of external the eighties, be embodied in main circuit structure and control system all fairly simple, intelligent degree is low, and equipment is huge, volume is large, price, these devices all need to be domesticized, and improve the ratio of performance to price of product.Capacity is below hundreds of kVA, and compared with the storage battery pack charging device of low capacity, majority is of home make product.
The charging device based on thyristor that the lead acid battery charge equipment using on current colliery is still developed mostly the seventies and eighties, exist volume large, charging interval is long large to the infringement of battery, the shortcomings such as the charging interval is long, along with the development of technology, the main key technology trend of Coal mine charger is concentrated as what time following at present:
A. Highgrade integration, densification.The volume of power device is constantly diminishing, and integrated degree is more and more higher, wherein especially with the representative that appears as of integrated IGBT.The degree of integration of control system is also improving constantly, and technique becomes increasingly complex, and the integrated circuit towards scale develops.
B. frequency is more and more higher, along with traditional thyristor power devices such as GTO are substituted by IGBT igbt gradually, the frequency of charger, withstand voltage, power consumption become more and more come high, high frequencyization can obviously the deperm volume, weight etc. of transformer material and large electrochemical capacitor, can obviously reduce net side low-order harmonic content, the EMC performance that improves charger, alleviates the harmonic pollution to Coal Mine Power Network.
C. digitlization and the intellectuality of height reduce manual intervention as far as possible.
In the high-capacity lead-acid storage battery charging scheme of colliery, mainly adopt as the structure of Fig. 1 at present:
1). major loop adopts three-phase half-controlled bridge-type circuit, by fast acting fuse, rectifier transformer, piezo-resistance, shunt, three-phase half-controlled bridge-type rectification circuit form.
In A, major loop, the effect of piezo-resistance is the surge current in protection switching overvoltage limit circuit.
Fast acting fuse in B, major loop is for the short-circuit protection in loop.
C, the wire (104,103) that is connected across major loop storage battery two ends are reverse connecting protections.When charging device and batteries connect inverse time, the voltage of batteries own is connected major loop reverse connecting protection relay K coil, and relay adhesive is cut off major loop starter control loop power supply, reverse connecting protection indicator light D5 bright (redness).
2). phase-shift trigger circuit (CD-KJCF-001), it is the circuit board that Unit two are integrated and form, be characterized in without synchrotrans, only by rectifier transformer, after secondary output access pulsed triggering circuit plate is isolated by photoelectricity, signal is by the unified detection of processing phase sequence of single-chip microcomputer, the detection of synchronizing signal, the AC18V (being exported by control transformer) that power supply is supplied with synchronizes with phase sequence that it doesn't matter, the detection that is synchronizing signal is the secondary side by rectifier transformer, and voltage range is very wide, be not subject to whether primary side is 660V or the impact of 380V.The phase-shifting voltages of the lock-out pulse being come by sync detection circuit and adjusting testing circuit converts by phase shift block, then export phase-shift pulse to single-chip microcomputer, single-chip microcomputer is according to the phase sequence situation of phase-shift pulse and detection, respectively successively with the formal output pulse of spike train, through drive circuit pulse transformer, and export 10KHZ spike train and trigger controllable silicon change phase shift range.
3). calculating control circuit plate (CD-KJWJ-001), palpus and phase-shift trigger circuit plate support the use.For simplicity, following computer panel is called for short " microcomputer plate ", phase shift triggers control board and is called for short " trigger board ", microcomputer plate and trigger board support the use and can realize constant current charge, power supply exchanges two 13V ± 5%, one tunnel enters A/D converter through double integrator, one tunnel enters D/A converter through binary system, after normal boot-strap, have 30 seconds initial times, dextrorotation modulation stream potentiometer 1/3 circumference starts charging, determines battery block number in 10 minutes, after about 30 seconds, in 10 minutes, do not affect normal current stabilization charging.Charging device completes in the process of current stabilization, voltage stabilizing, normal charge, all, by microcomputer plate control program, accomplishes once to complete.
Prior art generally adopts the technical scheme of Thyristor Controlled rectification, this scheme is owing to can only being operated under lower frequency, the volume and weight of magnetic transformer and electrochemical capacitor is all larger, the phase shift adopting triggers control board and falls behind than at present popular high position processing systematic comparison, intelligent not.Existing charging technique is owing to adopting Thyristor Controlled rectification in addition, reactive power is larger, and charge efficiency is low, and a large amount of harmonic waves of net side are scurried into electrical network and easily caused harmonic pollution to bring infringement to the normal operation of other electric equipment in electrical network, output ripple is large, easily causes the storage battery warming-up effect life-span.
Utility model content
The purpose of this utility model is to provide a kind of mining high-capacity lead-acid storage battery intelligent charger system, is intended to solve prior art and can only be operated in the problems such as low frequency, charging system are not intelligent, reactive power is larger, and charge efficiency is low.
The utility model is to realize like this, a kind of mining high-capacity lead-acid storage battery intelligent charger system comprises: for selecting the contactor of alternating current source, be connected the three-phase bridge rectification circuit for rectification with contactor, be connected the single-phase high frequency inverter circuit for inversion with three-phase bridge rectification circuit, be connected the high frequency transformer for transformation with single-phase high frequency inverter circuit, be connected the single-phase high frequency rectification circuit for high-frequency rectification with high frequency transformer, be connected the voltage detecting circuit for detection of voltage with single-phase high frequency rectification circuit, be connected the current detection circuit for detection of electric current with single-phase high frequency rectification circuit, the control circuit module being connected with current detection circuit with voltage detecting circuit, the driver module being connected with control circuit module, voltage detection module, display circuit and keyboard circuit.
Described contactor is connected with voltage detection module with interchange input source, can under control circuit module controls, to alternating current source AC380V/50Hz and AC660V/50Hz, select.
Described three-phase bridge rectification circuit is connected with contactor, adopts the uncontrollable diode of three-phase, by the AC rectification of input, is DC510V or DC900V direct current.
Described single-phase high frequency inverter circuit adopts IGBT inverter, and obtaining amplitude is the interchange high frequency square wave voltage of AC510V/20kHz or AC900V/20kHz.
Described high frequency transformer adopts the high frequency transformer of microcrystalline iron core, the decompression transformation of the 20kHz high frequency square wave voltage that realization produces inverter, soon amplitude is the interchange high frequency square wave voltage that interchange high frequency square wave voltage decompression transformation to the amplitude of AC510V/20kHz or AC900V/20kHz is AC300V/20kHz, has realized the electrical isolation between input voltage and output voltage.
The continuously adjustable direct voltage of the exportable DC0～300V of described single-phase high frequency rectification circuit.
The described voltage detecting circuit being connected with single-phase high frequency rectification circuit, current detection circuit feed back for control circuit module provides voltage and current.
Described control circuit module adopts PWM that chip UCC3895 occurs.
Described driver module adopts 2SP0115T2Ax driver module, have use simple, reliable, have short-circuit protection, have input voltage monitoring, isolation voltage advantages of higher.
Described display circuit is for showing the parameter informations such as electric current, capacity of charge in batteries.
Described key circuit is set charge parameter information for user.
effect gathers
A kind of mining high-capacity lead-acid storage battery intelligent charger system of the present utility model, up-to-date igbt for the utility model (IJBT) replaces the thyristor power device adopting in traditional mining charger, improved switching frequency, can obviously reduce volume, the weight of magnetic transformer material and large electrochemical capacitor, adopt high frequency transformer can isolate the impact of accumulator load on charger, improve fail safe, to output voltage, also can play certain filter action in addition.
Temperature when the utility model adopts various signal acquisition circuits and fieldbus to work to charger, the parameter signals such as net side, outlet side voltage monitor, show, can Autoamtic-protection charging machine when meeting accident not damaged.Battery status signal is monitored and shown, protection battery is not damaged.
In the utility model, adopt two stage charging methods, under current/voltage PI link regulates, charging curve relatively approaches the ideal charging curve of lead accumulator, makes storage battery can fully be full of fast electricity, and property retention is stable.
Accompanying drawing explanation
Fig. 1 is traditional Thyristor Controlled rectification scheme block diagram;
Fig. 2 is the intelligent charger system construction drawing that the utility model embodiment provides;
Wherein: 1, contactor; 2, three-phase bridge rectification circuit; 3, single-phase high frequency inverter circuit; 4, high frequency transformer; 5, single-phase high frequency rectification circuit; 6, voltage detecting circuit; 7, current detection circuit; 8, control circuit module; 9, driver module; 10, voltage detecting circuit; 11, display circuit; 12, key circuit;
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 2, the utility model is to realize like this, a kind of mining high-capacity lead-acid storage battery intelligent charger system comprises: for selecting the contactor 1 of alternating current source, be connected the three-phase bridge rectification circuit 2 for rectification with contactor 1, be connected the single-phase high frequency inverter circuit 3 for inversion with three-phase bridge rectification circuit 2, be connected the high frequency transformer 4 for transformation with single-phase high frequency inverter circuit 3, be connected the single-phase high frequency rectification circuit 5 for high-frequency rectification with high frequency transformer 4, be connected the voltage detecting circuit 6 for detection of voltage with single-phase high frequency rectification circuit 5, be connected the current detection circuit 7 for detection of electric current with single-phase high frequency rectification circuit 6, the control circuit module 8 being connected with current detection circuit 7 with voltage detecting circuit 6, the driver module 9 being connected with control circuit module, voltage detection module 10, display circuit 11 and keyboard circuit 12.
Contactor 1 is connected with voltage detection module 10 with interchange input source, can under control circuit module controls, to alternating current source AC380V/50Hz and AC660V/50Hz, select.
Three-phase bridge rectification circuit 2 is connected with contactor 1, adopts the uncontrollable diode of three-phase, by the AC rectification of input, is DC510V or DC900V direct current.
Single-phase high frequency inverter circuit 3 adopts IGBT inverter, and obtaining amplitude is the interchange high frequency square wave voltage of AC510V/20kHz or AC900V/20kHz.
High frequency transformer 4 adopts the high frequency transformer of microcrystalline iron core, the decompression transformation of the 20kHz high frequency square wave voltage that realization produces inverter, soon amplitude is the interchange high frequency square wave voltage that interchange high frequency square wave voltage decompression transformation to the amplitude of AC510V/20kHz or AC900V/20kHz is AC300V/20kHz, has realized the electrical isolation between input voltage and output voltage.
The continuously adjustable direct voltage of the exportable DC0～300V of single-phase high frequency rectification circuit 5.
The voltage detecting circuit 6 being connected with single-phase high frequency rectification circuit 5, current detection circuit 7 feed back for control circuit module 8 provides voltage and current.
Control circuit module 8 adopts PWM that chip UCC3895 occurs.
Driver module 9 adopts 2SP0115T2Ax driver modules, have use simple, reliable, have short-circuit protection, have input voltage monitoring, isolation voltage advantages of higher.
Display circuit 11 is for showing the parameter information such as electric current, capacity of charge in batteries.
Key circuit 12 is set charge parameter information for user.
Although above-mentioned, by reference to the accompanying drawings embodiment of the present utility model is described; but the not restriction to the utility model protection range; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that performing creative labour can make or distortion still within protection range of the present utility model.
Claims (7)
1. a mining high-capacity lead-acid storage battery intelligent charger system, it is characterized in that, this utility model comprises: for selecting the contactor of alternating current source, be connected the three-phase bridge rectification circuit for rectification with contactor, be connected the single-phase high frequency inverter circuit for inversion with three-phase bridge rectification circuit, be connected the high frequency transformer for transformation with single-phase high frequency inverter circuit, be connected the single-phase high frequency rectification circuit for high-frequency rectification with high frequency transformer, be connected the voltage detecting circuit for detection of voltage with single-phase high frequency rectification circuit, be connected the current detection circuit for detection of electric current with single-phase high frequency rectification circuit, the control circuit module being connected with current detection circuit with voltage detecting circuit, the driver module being connected with control circuit module, voltage detection module, display circuit and keyboard circuit.
2. mining high-capacity lead-acid storage battery intelligent charger system according to claim 1, it is characterized in that, described contactor is connected with voltage detection module with interchange input source, can under control circuit module controls, to alternating current source AC380V/50Hz and AC660V/50Hz, select.
3. mining high-capacity lead-acid storage battery intelligent charger system according to claim 1, it is characterized in that, described three-phase bridge rectification circuit is connected with contactor, adopts the uncontrollable diode of three-phase, by the AC rectification of input, is DC510V or DC900V direct current.
4. mining high-capacity lead-acid storage battery intelligent charger system according to claim 1, is characterized in that, described single-phase high frequency inverter circuit adopts IGBT inverter.
5. mining high-capacity lead-acid storage battery intelligent charger system according to claim 1, is characterized in that, described high frequency transformer adopts the high frequency transformer of microcrystalline iron core.
6. mining high-capacity lead-acid storage battery intelligent charger system according to claim 1, is characterized in that, described control circuit module adopts PWM that chip UCC3895 occurs.
7. mining high-capacity lead-acid storage battery intelligent charger system according to claim 1, is characterized in that, described driver module adopts 2SP0115T2Ax driver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309163.3U CN203942323U (en) | 2014-06-11 | 2014-06-11 | A kind of mining high-capacity lead-acid storage battery intelligent charger system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309163.3U CN203942323U (en) | 2014-06-11 | 2014-06-11 | A kind of mining high-capacity lead-acid storage battery intelligent charger system |
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| CN203942323U true CN203942323U (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420309163.3U Expired - Fee Related CN203942323U (en) | 2014-06-11 | 2014-06-11 | A kind of mining high-capacity lead-acid storage battery intelligent charger system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037919A (en) * | 2014-06-11 | 2014-09-10 | 华北科技学院 | Mine high-capacity lead-acid storage battery intelligent charger |
| CN106972604A (en) * | 2016-12-12 | 2017-07-21 | 华北科技学院 | A kind of fast charger of lead-acid accumulator for mine use high-frequency intelligent |
-
2014
- 2014-06-11 CN CN201420309163.3U patent/CN203942323U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037919A (en) * | 2014-06-11 | 2014-09-10 | 华北科技学院 | Mine high-capacity lead-acid storage battery intelligent charger |
| CN106972604A (en) * | 2016-12-12 | 2017-07-21 | 华北科技学院 | A kind of fast charger of lead-acid accumulator for mine use high-frequency intelligent |
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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 |
Granted publication date: 20141112 Termination date: 20150611 |
|
| EXPY | Termination of patent right or utility model |