CN104092226B - Intelligent Coal Mine Power Distribution System comprehensive experimental device - Google Patents
Intelligent Coal Mine Power Distribution System comprehensive experimental device Download PDFInfo
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- CN104092226B CN104092226B CN201410373741.4A CN201410373741A CN104092226B CN 104092226 B CN104092226 B CN 104092226B CN 201410373741 A CN201410373741 A CN 201410373741A CN 104092226 B CN104092226 B CN 104092226B
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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 present invention relates to intelligent Coal Mine Power Distribution System comprehensive experimental device, effectively can solve the problem of coal mine environment specific electric power system simulated experiment difficulty, technical scheme is, comprise base and base-mounted down-hole sand table and aboveground sand table, down-hole sand table is provided with the Roadway model corresponding with actual mine layout, Roadway model is connected with aboveground sand table through wellbore model, down-hole sand table is respectively arranged with down-hole central substation, working section sub station, working face gallery distributor point, mobile substation, tailentry distributor point, dot matrix screen, power factor meter, ammeter and voltmeter, aboveground sand table is provided with mine surface electric substation, the top of aboveground sand table and down-hole sand table is provided with structure of rolling at the rear portion of base, the present invention can carry out colliery and power and to test with vent-pipe foundation, three large Protections, reactive power compensation, harmonic wave control is tested, easy to use, effective.
Description
Technical field
The present invention relates to experimental provision, particularly a kind of intelligent Coal Mine Power Distribution System comprehensive experimental device.
Background technology
Electricity is the necessary main energy sources of coal production, and due to the particularity of coal mine environment, the safety and reliability of its electric power system just seems particularly important, and some faults may cause the serious consequence that cannot envision.The issuable harm of such as electric leakage accident has: the person gets an electric shock; Electric leakage produces electric spark, causes gas or coal-dust explosion; Developer leakage to a certain extent, makes electric cap ignite without preparation; Long-term leakage current can burn standby, causes fire; Cause short circuit accident, cause larger electric fault, the safety of mine and underground work personnel is constituted a serious threat.Safety Work in Colliery, concerning the country and people's interests, must attract great attention.Also do not have a kind of for the specific electric power system experimental provision of coal mine environment at present, the specific electric power system of coal mine environment is difficult to analogue test, and relevant staff is also difficult to the training obtaining being correlated with.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the object of the present invention is just to provide a kind of intelligent Coal Mine Power Distribution System comprehensive experimental device, and effectively can solve the specific electric power system simulated experiment difficulty of coal mine environment, relevant staff is also difficult to the problem of the training obtaining being correlated with.
The technical scheme that the present invention solves is, comprise base and base-mounted down-hole sand table and aboveground sand table, down-hole sand table is provided with the Roadway model corresponding with actual mine layout, Roadway model is connected with aboveground sand table through wellbore model, down-hole sand table is respectively arranged with down-hole central substation, working section sub station, working face gallery distributor point, mobile substation, tailentry distributor point, dot matrix screen, power factor meter, ammeter and voltmeter, aboveground sand table is provided with mine surface electric substation, the top of aboveground sand table and down-hole sand table is provided with structure of rolling at the rear portion of base, roller shutter structure comprise column and respectively level be contained in coiling and the lower mandrel member of upper and lower on column, coiling and lower mandrel member have installed around curtain body, the both sides up and down of curtain body are fixed together with coiling and lower mandrel member respectively, the stay cord driving coiling rotating coiling is equipped with, form the bascule of curtain body rotary retractable, the front of curtain body is provided with for representing representative power system, typical Coal Mine Power Distribution System, the identifying body of basic supply power mode and electric substation's common wiring pattern mode.
Described down-hole central substation, working section sub station, working face gallery distributor point, mobile substation, tailentry distributor point and mine surface electric substation are equiped with transformer and motor respectively, three-phase alternating-current supply, first through base-mounted total power switch, is connected to power factor meter, ammeter and voltmeter; Harmonic oscillator output connects the supply line of three-phase alternating-current supply, is controlled by controller through system bus simultaneously; Current transformer is connected to the supply line of three-phase alternating-current supply, and be controlled by controller through system bus, electric capacitor C is in parallel with current transformer simultaneously; Measure voltage & current module obtains signal from the supply line of three-phase alternating-current supply, gives controller through Signal-regulated kinase, A/D modular converter; Controller is connected with system bus, receives or transmits control signal; On the zero line that DC power supplier is connected to three-phase alternating-current supply and a live wire, to controller, be contained in the curtain body back side dot matrix screen, be contained in Roadway model and power for the ventilating system light bar and loudspeaker module that represent the distinguished and admirable flow direction, simultaneously dot matrix screen, ventilating system light bar, loudspeaker module are all controlled by controller through system bus; On the zero line that roller shutter backlight is connected to three-phase alternating-current supply and a live wire; Motor is connected to the power supply circuits of three-phase alternating-current supply through relay normally open contact, and measure voltage & current module, Signal-regulated kinase, A/D modular converter obtain signal from each feed leg, deliver to system bus; Relay module is controlled by controller through system bus; Transformer is connected to the power supply circuits of three-phase alternating-current supply through relay normally open contact, and measure voltage & current module, Signal-regulated kinase, A/D modular converter obtain signal from feed leg, deliver to system bus; Relay module is controlled by controller through system bus.
Described transformer comprise the symbol main transformer of mine surface electric substation installing transformer T1, signify that transformer T3 that the symbol providing the transformer T2 of low pressure power, down-hole central substation installs provides shaft station low-voltage-powered, the transformer T4 of symbol main transformer of working section sub station installing, symbol provide the transformer T5 of illumination power, the transformer T6 of symbol main transformer that working face gallery distributor point is installed, described motor comprises the motor M1 of the symbol main electromotor of mine surface electric substation installing, signify the motor M2 of secondary elevator, the motor M3 of symbol air compressor machine, the motor M4 of symbol ventilation blower, the motor M5 of the symbol main drain pump of down-hole central substation installing, the motor M6 of the symbol booster of working section sub station installing, the motor M7 of symbol coal-winning machine, the motor M8 of symbol working face conveyor, the motor M9 of symbol electric coal drill, the motor M10 of the symbol car hauler of tailentry distributor point installing and the motor M11 of symbol drawing hoist.
Novel structure of the present invention is unique, advantages of simple, safe and reliable, novel in design, rational in infrastructure, perfect in shape and function, fully can show the whole general picture of electric power system, the mine power supply system mode of connection and deep-well, shallow well, the electric power system general picture of large-scale synthesis mechanization mine, colliery can be carried out power and to test with vent-pipe foundation, three large Protections, reactive power compensation, harmonic wave control is tested, and can based on experimental provision hardware platform, carry out reactive power compensation, the optimization of harmonic wave control relevant control algorithm and research, easy to use, effective, there is good Social and economic benef@.
Accompanying drawing explanation
Fig. 1 is structural perspective of the present invention.
Fig. 2 is that the present invention is electrically connected frame figure.
Fig. 3 is the electrical connection schematic diagram of fault point of the present invention, phase shortage switch, ground network switch.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
By Fig. 1, 2, 3 provide, the present invention includes base and base-mounted down-hole sand table and aboveground sand table, down-hole sand table 16 is provided with the Roadway model 14 corresponding with actual mine layout, Roadway model 14 is connected with aboveground sand table 8 through wellbore model 10, down-hole sand table 16 is respectively arranged with down-hole central substation 11, working section sub station 15, working face gallery distributor point 17, mobile substation 18, tailentry distributor point 19, dot matrix screen 7, power factor meter 20, ammeter 21 and voltmeter 22, aboveground sand table 8 is provided with mine surface electric substation 9, and the top of aboveground sand table 8 and down-hole sand table 16 is provided with structure of rolling at the rear portion of base, and roller shutter structure comprises column 1a, 1b and respectively level are contained in coiling 3 and the lower mandrel member 6 of upper and lower on column, coiling 3 and lower mandrel member 6 have installed around curtain body 5, the both sides up and down of curtain body 5 are fixed together with coiling 3 and lower mandrel member 6 respectively, the stay cord 2 driving coiling rotating coiling 3 is equipped with, forming the bascule of curtain body rotary retractable, the front of curtain body being provided with for representing representative power system, typical Coal Mine Power Distribution System, the identifying body 23 of basic supply power mode and electric substation's common wiring pattern mode.
In order to ensure result of use, the roller shutter backlight for throwing light on is equipped with at described curtain body 5 back side;
Described Roadway model 14 is built with the ventilating system light bar for representing the distinguished and admirable flow direction.
Described down-hole central substation 11, working section sub station 15, working face gallery distributor point 17, mobile substation 18, tailentry distributor point 19 and mine surface electric substation 9 are equiped with transformer and motor respectively, the total power switch 12 of three-phase alternating-current supply first through being contained on base 4, is connected to power factor meter 20, ammeter 21 and voltmeter 22; Harmonic oscillator output connects the supply line of three-phase alternating-current supply, is controlled by controller through system bus simultaneously; Current transformer is connected to the supply line of three-phase alternating-current supply, and be controlled by controller through system bus, electric capacitor C is in parallel with current transformer simultaneously; Measure voltage & current module obtains signal from the supply line of three-phase alternating-current supply, gives controller through Signal-regulated kinase, A/D modular converter; Controller is connected with system bus, receives or transmits control signal; On the zero line that DC power supplier is connected to three-phase alternating-current supply and a live wire, to controller, be contained in curtain body 5 back side dot matrix screen 7, be contained in Roadway model 14 and power for the ventilating system light bar and loudspeaker module that represent the distinguished and admirable flow direction, dot matrix screen, ventilating system light bar, loudspeaker module are all controlled by controller through system bus simultaneously; On the zero line that roller shutter backlight is connected to three-phase alternating-current supply and a live wire; Motor is connected to the power supply circuits of three-phase alternating-current supply through relay normally open contact, and measure voltage & current module, Signal-regulated kinase, A/D modular converter obtain signal from each feed leg, deliver to system bus; Relay module is controlled by controller through system bus; Transformer is connected to the power supply circuits of three-phase alternating-current supply through relay normally open contact, and measure voltage & current module, Signal-regulated kinase, A/D modular converter obtain signal from feed leg, deliver to system bus; Relay module is controlled by controller through system bus;
Described transformer comprise the symbol main transformer that mine surface electric substation 9 installs transformer T1, signify transformer T3 that the symbol providing the transformer T2 of low pressure power, down-hole central substation 11 installs provides shaft station low-voltage-powered, transformer T5 that the transformer T4 of symbol main transformer that working section sub station 15 is installed, symbol provide illumination power, the transformer T6 of symbol main transformer that working face gallery distributor point 17 is installed, described motor comprises the motor M1 of the symbol main electromotor that mine surface electric substation 9 installs, signify the motor M2 of secondary elevator, the motor M3 of symbol air compressor machine, the motor M4 of symbol ventilation blower, the motor M5 of the symbol main drain pump that down-hole central substation 11 is installed, the motor M6 of the symbol booster that working section sub station 15 is installed, the motor M7 of symbol coal-winning machine, the motor M8 of symbol working face conveyor, the motor M9 of symbol electric coal drill, the motor M10 of the symbol car hauler that tailentry distributor point 19 is installed and the motor M11 of symbol drawing hoist, motor M1 is connected to the power supply circuits of three-phase alternating-current supply through relay normally open contact JM1, and measure voltage & current module, Signal-regulated kinase, A/D modular converter are connected with each feed leg, and the signal of acquisition is delivered to system bus, relay module connects controller through system bus, transformer T1 is connected to the power supply circuits of three-phase alternating-current supply through relay normally open contact JT1, and measure voltage & current module, Signal-regulated kinase, A/D modular converter are connected with each feed leg, and the signal of acquisition is delivered to system bus, relay module connects controller through system bus, all the other motor (M2---M11), transformer (T2---T6) adopt syndeton identical therewith, describe no longer one by one.
For ensureing result of use, the curtain body of structure of rolling of the present invention is used for identifying body 23, and namely representative power system, typical Coal Mine Power Distribution System, the basic content such as supply power mode and electric substation's common wiring pattern mode intuitively show on curtain body.Wherein typical Coal Mine Power Distribution System can comprise deep-well electric power system, shallow well electric power system, big machinery mine power supply system; Basic supply power mode can comprise emanant, trunk line type and cyclic formula etc.; Electric substation's common wiring pattern mode can comprise single bus scheme and bridge connection etc.Needed for the content that represents vertically be printed on structure of rolling successively curtain body 5 on maybe the painting canvas produced is pasted in curtain body front, by pulling the stay cord of structure of rolling, reel being rotated forward or reversion, it can be presented one by one, with auxiliary training teacher explanation, make experiment effect better.
Power factor meter, voltmeter and ammeter are used for display experimental provision power factor, voltage, current parameters in real time; LED dot matrix screen on experimental provision, when system failure, can show the related contents such as mine safety is powered, electricity consumption, during the system failure, can show the parameter such as fault point, fault current; Ventilating system light bar adopts the light bar be made up of multiple LED, is used to indicate the flow direction of tunnel or pit shaft apoplexy; Loudspeaker module adopts ISD1820 recording voice module, can simulate blast sound when sending gas or coal-dust explosion, make experiment effect visualization more; DC power supplier adopts Great Wall giant dragon 1000DA desktop computer power supply, has multichannel level and exports, can change single phase alternating current (A.C.) into required direct current energy; Roller shutter backlight is for illuminating the content that curtain body represents; Harmonic oscillator adopts general source DG4062 binary channels 60M signal generator, can produce the harmonic signal up to 16 times, can inject each harmonic signal to system, as the harmonic source of simulation; Current transformer adopts the PS21865 type IPM module of Mitsubishi, can make electric capacity C charge or discharge in parallel with it, for harmonic carcellation electric current or compensating power; Measure voltage & current module adopts PK6015 three phase electrical parameters acquisition module, the voltage of Real-time Collection supply line, current signal, and this signal can reflect the harmonic wave situation of system and idle situation; Signal-regulated kinase adopts the full isolation signals conditioning module of AM-T, can make the frequency of signal, amplitude in the scope of the best, improves signal to noise ratio; A/D modular converter adopts the ADS8325 module of 16, converts the analog signal that Signal-regulated kinase exports to digital signal, so that controller identification; System adopts DSP28335+FPGA development board as controller; Controller transmits control signal to harmonic oscillator, current transformer, dot matrix screen, ventilating system light bar, loudspeaker module and each relay module through system bus, and receive the digital signal of each A/D modular converter output, wherein each relay module all adopts latching type relays module, include reset circuit, namely only have after relay adhesive and relay just can be made to disconnect by resetting.
For carrying out leakage experiment or short circuit experiment (as shown in Figure 3), all arrange a fault point 25 near each motor and transformer, fault point can be metal terminal, and fault point is electrically connected with a wherein phase of feed leg; For implement motor phase failure protection experiment, all motor branch circuits wherein one a phase shortage switch 24 is set mutually, control the break-make of this phase circuit, switch is installed near motor; For realizing protective earthing; all motor and transformer case are all connected on earth bus 27; be the potential hazard caused of leaking electricity when avoiding distinct device difference identical in addition; the metal shell 26 of each power consumption equipment is also coupled together on electrically; each earth electrode is equivalent to compose in parallel ground network; and this also reduces earth resistance, the reliability of protective device action when improve the system failure.Ground network, by base-mounted ground network switch 12 ground connection, can be found out, whether ground network effectively depends on the break-make of ground network switch.
When breaking down, the information failure judgement type that controller provides according to input and processing module, calculates fault parameter, sends such as relay adhesive, make the control commands such as corresponding feeder line tripping operation.
Experimental provision operation of the present invention is as follows:
(1) normal power supply ventilates and tests
Open " total power switch ", represent distinguished and admirable to ventilating system light bar present flowing water state, symbol mine ventilation normal.Transformer T1---T6 obtains electric, and motor M1---M11 obtains electric normal operation, and power factor meter, voltmeter, ammeter be display system power factor, voltage and current parameters respectively, the related contents such as dot matrix screen Circulating fibrocytes mine safety is powered, electricity consumption.
Meanwhile, roller shutter backlight is lighted, and pulls structure of rolling stay cord representative power system, typical Coal Mine Power Distribution System, basic supply power mode and electric substation's common wiring pattern mode intuitively can be shown on curtain body, assistant experiment process.
(2) three large Protections
Earth leakage protective is tested:
Under electric power system normal operation, the fault point of arbitrary motor or transformer is touched with the simulation people that impedance is about 1000 ohms, be equivalent to leak current fault occurs, fault branch zero-sequence current increases, controller, through calculation process, makes this branch road relay switch trip, simultaneously dot matrix screen display fault point and leakage current numerical value I1, fault branch is cut, and other loaded work pieces are normal.If equipment is the transformer of symbol main transformer, then the equal power-off of all branch roads being power supply with it; Be connected across between fault point and ground with one section of conductor, be equivalent to the fault that is short-circuited, now can see, switch trip, fault current I2> leakage current I1.
Protective earthing is tested:
First by ground network switch disconnect, protective earthing device is invalid, then by arbitrary transformer or motor casing corresponding with it fault point connection; outer casing electrification, now earth leakage protective device is not operating, touches charged shell with simulation people; artificial manufacture leak current fault, the action of branch road relay switch.
Closed by ground network switch, now protective earthing device is effective, then by arbitrary transformer or the motor casing fault point connection corresponding with it, earth leakage protective is action at once, and this makes earth leakage protective reliability stronger.
If when fault current does not reach earth leakage protective operating value, leakage current major part enters ground through earth electrode, thus the gas avoiding serious electric shock accidents or leakage current to cause, coal-dust explosion, reduce the order of severity of fault.
Overcurrent protection is tested:
For motor comprehensive protection, corresponding overcurrent protection comprises short-circuit protection, earth leakage search/lockout, open-phase protection and overload protection etc.
Under electric power system normal condition, with conductor, motor fault point and ground are connected, manufacture short trouble, the action at once of fault branch relay switch, cut off feeder line, dot matrix screen display fault point and fault current;
Touch fault point with simulation people, manufacture leak current fault, the same action of protective device, before non-reset relay module, M19 motor can not start all the time, is namely in blocking;
The phase shortage switch of experiment motor is closed, and namely disconnect a wherein phase of this feed leg, now open-phase fault occurs, relay module cuts off this branch road at once.
Under experiment motor normal operating conditions, artificially apply frictional force to rotating shaft and constantly increase, the overload state of simulating motor, when friction increases to a certain degree, this feed leg is cut off, and realizes overload protection.
(3) reactive power compensation experiment
When Coal Mine Power Distribution System reactive power is not enough, power factor reduces, and by causing larger voltage-drop and power loss in supply line, making conductor overheating, can cause gas or coal-dust explosion time serious.Given this, on this experimental provision, reactive power compensation experiment is carried out in design.
When controller does not send reactive power compensation instruction to current transformer, current transformer and the non-input coefficient of electric capacity C, note the power factor of power factor meter display, simultaneously voltage, the current signal waveform of available oscilloscope display system; Controller sends reactive power compensation instruction, current transformer and electric capacity C input coefficient, can observe the speed of compensation process and accuracy etc. from oscilloscope.
(4) harmonic wave control experiment
When electric power system exists harmonic wave, the cable caused by kelvin effect can be produced overheated, in mine, coal dust or gas explosion may be caused; Harmonic voltage can become interference source, and interference electronic equipment normally works, and causes circuit breaker or other switchgear misoperations, causes accident.This experimental provision is carried out harmonic wave control experiment significant.
Controller not to harmonic oscillator send instruction time, harmonic oscillator not to system harmonic, voltage, the current signal waveform of available oscilloscope display system; Send harmonic instruction, harmonic oscillator produces the harmonic current of corresponding number of times and injected system, from oscilloscope observing system voltage, current waveform, and notes the harmonic current parameter that dot matrix screen display is shown; Controller sends harmonic wave control instruction, current transformer and electric capacity C input coefficient, forms shunt active power filter, produces the current signal anti-phase with harmonic current, is balanced out by harmonic current, can observe the speed of governance process and accuracy etc. from oscilloscope.
For reactive power compensation experiment, predicted power control strategy or other control algolithms can be adopted, for harmonic wave control experiment, can the methods such as wavelet analysis be adopted.The experiment effect that different control algolithm reaches also is not quite similar, and based on experimental provision hardware platform, by different control algolithm making software, can import controller, carry out the exploitation of reactive power compensation and harmonic wave control control algolithm, optimizes and research.
Compared with prior art, the present invention has the following advantages:
1, specific for coal mine environment electric power system can present with the form of model by the present invention, easily allows relevant staff understand the electric power system general picture of the whole general picture of electric power system, the mine power supply system mode of connection and deep-well, shallow well, large-scale synthesis mechanization mine very intuitively;
2, the present invention can carry out colliery power to test with vent-pipe foundation, three large Protections, reactive power compensation, harmonic wave control test, and can based on experimental provision hardware platform, carry out reactive power compensation, the optimization of harmonic wave control relevant control algorithm and research, experiment content enriches, broad covered area, not only can be used for the routine training of common machine electrician people, also can be used for the design and research work of senior engineering technician;
3, identifying body 23 is set on curtain body to represent representative power system, typical Coal Mine Power Distribution System, the basic content such as supply power mode and electric substation's common wiring pattern mode, and can by pulling the stay cord of structure of rolling, reel is rotated forward or reversion, it can be presented one by one, with auxiliary training teacher explanation, make experiment effect better;
4, each POL shell of the present invention is all connected with ground network, and when there is human electric shock's accident in experimentation, shock current reduces greatly, Protection personal security; In addition, adopt the simulation people of certain resistance value to test, fail safe when making the present invention apply equally is improved;
5, the present invention integrates harmonic source and harmonic wave control hardware resource, can realize artificial harmonic, and be eliminated by active power filtering means, makes that harmonic wave occurs, harmonic wave control process is clear and intuitive, is conducive to start-up and understands acceptance;
6, the application of bussing technique makes the fault of each POL all concentrate on controller to carry out calculation process, but not each POL independent process, so not only save design cost, and simplify electrical wiring, the Electro Magnetic Compatibility of this experimental provision is improved, and the stability in application process, reliability strengthen.
Claims (4)
1. an intelligent Coal Mine Power Distribution System comprehensive experimental device, comprise base and base-mounted down-hole sand table and aboveground sand table, it is characterized in that, down-hole sand table (16) is provided with the Roadway model (14) corresponding with actual mine layout, Roadway model (14) is connected with aboveground sand table (8) through wellbore model (10), down-hole sand table (16) is respectively arranged with down-hole central substation (11), working section sub station (15), working face gallery distributor point (17), mobile substation (18), tailentry distributor point (19), dot matrix screen (7), power factor meter (20), ammeter (21) and voltmeter (22), aboveground sand table (8) is provided with mine surface electric substation (9), the top of aboveground sand table (8) and down-hole sand table (16) is provided with structure of rolling at the rear portion of base, roller shutter structure comprises column (1a, 1b) and respectively level is contained in coiling (3) and the lower mandrel member (6) of upper and lower on column, coiling (3) and lower mandrel member (6) have installed around curtain body (5), the both sides up and down of curtain body (5) are fixed together with coiling (3) and lower mandrel member (6) respectively, the stay cord (2) driving coiling rotating coiling (3) is equipped with, form the bascule of curtain body rotary retractable, the front of curtain body is provided with for representing electric power system, Coal Mine Power Distribution System, the identifying body (23) of supply power mode and electric substation's mode of connection.
2. intelligent Coal Mine Power Distribution System comprehensive experimental device according to claim 1, is characterized in that, the roller shutter backlight for throwing light on is equipped with at described curtain body (5) back side.
3. intelligent Coal Mine Power Distribution System comprehensive experimental device according to claim 1, is characterized in that, described Roadway model (14) is built with the ventilating system light bar for representing the distinguished and admirable flow direction.
4. intelligent Coal Mine Power Distribution System comprehensive experimental device according to claim 2, it is characterized in that, the transformer T4 of the symbol main transformer that the transformer T3 that transformer comprises the transformer T1 of the symbol main transformer that mine surface electric substation (9) installs, symbol provides the transformer T2 of low pressure power, down-hole central substation (11) is installed symbol provides shaft station low-voltage-powered, working section sub station (15) are installed, symbol provide the transformer T5 of illumination power, the transformer T6 of the symbol main transformer that working face gallery distributor point (17) is installed, motor comprises the motor M1 of the symbol main electromotor that mine surface electric substation (9) installs, signify the motor M2 of secondary elevator, the motor M3 of symbol air compressor machine, the motor M4 of symbol ventilation blower, the motor M5 of the symbol main drain pump that down-hole central substation (11) is installed, the motor M6 of the symbol booster that working section sub station (15) is installed, the motor M7 of symbol coal-winning machine, the motor M8 of symbol working face conveyor, the motor M9 of symbol electric coal drill, the motor M10 of the symbol car hauler that tailentry distributor point (19) is installed and the motor M11 of symbol drawing hoist, the total power switch (12) of three-phase alternating-current supply first through being contained on base (4), be connected to power factor meter (20), ammeter (21) and voltmeter (22), harmonic oscillator output connects the supply line of three-phase alternating-current supply, is controlled by controller through system bus simultaneously, current transformer is connected to the supply line of three-phase alternating-current supply, and be controlled by controller through system bus, electric capacitor C is in parallel with current transformer simultaneously, measure voltage & current module obtains signal from the supply line of three-phase alternating-current supply, gives controller through Signal-regulated kinase, A/D modular converter, controller is connected with system bus, receives or transmits control signal, on the zero line that DC power supplier is connected to three-phase alternating-current supply and a live wire, to controller, be contained in curtain body (5) below dot matrix screen (7), be contained in Roadway model (14) and power for the ventilating system light bar and loudspeaker module that represent the distinguished and admirable flow direction, dot matrix screen, ventilating system light bar, loudspeaker module are all controlled by controller through system bus simultaneously, on the zero line that roller shutter backlight is connected to three-phase alternating-current supply and a live wire, motor is connected to the power supply circuits of three-phase alternating-current supply through the first relay normally open contact, and measure voltage & current module, Signal-regulated kinase, A/D modular converter obtain signal from each feed leg, deliver to system bus, first relay module is controlled by controller through system bus, transformer is connected to the power supply circuits of three-phase alternating-current supply through the second relay normally open contact, and measure voltage & current module, Signal-regulated kinase, A/D modular converter obtain signal from feed leg, deliver to system bus, second relay module is controlled by controller through system bus.
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| CN104485733B (en) * | 2014-12-31 | 2017-02-01 | 中国矿业大学 | Fully mechanized coal mining face mobile substation and control method |
| CN107221248A (en) * | 2017-07-07 | 2017-09-29 | 安徽理工大学 | One kind mining experimental teaching unit |
| CN107146515A (en) * | 2017-07-18 | 2017-09-08 | 锡林郭勒职业学院 | A kind of mine production system comprehensive demonstration simulation model |
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| JP3607561B2 (en) * | 2000-03-22 | 2005-01-05 | 日本碍子株式会社 | Constant power factor control method for reactive power compensator |
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| CN102419407A (en) * | 2011-08-18 | 2012-04-18 | 山东科技大学 | Ground detection experiment system for mining equipment |
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