CN104375030A - Frequency converter loading test device for mining coal cutter - Google Patents
Frequency converter loading test device for mining coal cutter Download PDFInfo
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- CN104375030A CN104375030A CN201410628512.2A CN201410628512A CN104375030A CN 104375030 A CN104375030 A CN 104375030A CN 201410628512 A CN201410628512 A CN 201410628512A CN 104375030 A CN104375030 A CN 104375030A
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Abstract
The invention disclose a frequency converter loading test device for a mining coal cutter and belongs to the technical field of mining frequency conversion. The frequency converter loading test device for the mining coal cutter comprise a high voltage control box and an operation platform. The high voltage control box is connected with a primary frequency converter, a secondary frequency converter and a load motor. The primary frequency converter is connected with the secondary frequency converter through a primary and secondary communication device, the output end of the primary frequency converter is connected with a variable frequency motor I, the variable frequency motor I and the load motor rotate in the same direction, and a rotor shaft of the variable frequency motor I and a rotator shaft of the load motor are connected. The output end of the secondary frequency converter is connected with a frequency converter II. The frequency converter loading test device for the mining coal cutter is used for detecting the performance and working condition of the primary frequency converter and the secondary frequency converter, and can complete a load frequency conversion test of the primary frequency converter, a frequency conversion test of the secondary frequency converter and detection of the communication and control between the primary frequency converter and the secondary frequency converter. The frequency converter loading test device has the advantages that the loading tests and primary and secondary on-line tests can be carried out on the frequency converters of various powers, the shortcoming that the motors of the frequency converters can only carry out idle running and cannot carry out load running is overcome, and the frequency converter loading test device is suitable for application and popularization.
Description
Technical field
The present invention relates to mine variable-frequency technical field, specifically a kind of mine coal cutter frequency converter load test equipment.
Background technology
Frequency converter is widely used in mining various coalcutter in recent years, due to the advanced person of application technology, during each repairing coalcutter, cannot load frequency converter, Long-distance Control, principal and subordinate's on-line test, the stability of coalcutter cannot be protected, often owing to being frequency converter problem or other problems generation difference, have a strong impact on the production of down-hole.
Summary of the invention
In order to solve frequency converter load test problem, the invention provides a kind of mine coal cutter frequency converter load test equipment.
The present invention is achieved through the following technical solutions: a kind of mine coal cutter frequency converter load test equipment, comprises the operator's console of high voltage control case and the connection control high voltage control case be connected with power supply; Described high voltage control case is connected to primary transducer, from frequency converter and load motor; Described primary transducer is connected from frequency converter with described by master-slave communication equipment, and the output terminal of primary transducer is connected with variable-frequency motor I; Described variable-frequency motor I turns to identical with described load motor, and both armature spindles are connected; Describedly be connected with variable-frequency motor II from inverter output terminal.
It is further: described variable-frequency motor I and load motor are fixed by a stationary platform, and on the same axis, two armature spindles are fixedly connected with wheel by one the armature spindle of variable-frequency motor I and load motor.
Described high voltage control case comprises high-tension transformer, low-tension transformer, vacuum contactor and fuse; Described load motor connects 1140V voltage in high voltage control case; Described primary transducer and connect 400V voltage high voltage control case from frequency converter.
Described primary transducer and be respectively placed with a cooling platform from frequency converter; Described cooling platform comprises for placing primary transducer and the iron plate shell from frequency converter; In described iron plate shell, be welded with flaky aluminum matter support, arrange multiple exhaust fan in iron plate shell symmetria bilateralis; Described exhaust fan connects 220V voltage in high voltage control case.
The panel of described operator's console is provided with one piece of touch-screen, 4 pieces of electric current and voltage Displaying Meters, 10 action buttons and 8 pilot lamp.
The present invention for detect primary transducer with from the performance of frequency converter and working condition, can complete and the bringing onto load frequency conversion of primary transducer test, from the frequency conversion test of frequency converter and detect primary transducer and from frequency converter communication between the two and control.Online by the starting, loading, the principal and subordinate that control master and slave frequency converter of cooperatively interacting of high voltage control case and operator's console, the loading of primary transducer is realized by the rotating speed extent of variable-frequency motor I with the load motor of equidirectional running, and the larger variable-frequency motor of speed discrepancy I bringing onto load is also larger.In loading procedure, the heat of tested frequency converter is cooled by cooling platform.
The invention has the beneficial effects as follows:
1, adopt the cooling platform that flaky aluminum matter rack making becomes, radiating effect is good, guarantees that tested frequency converter can not produce fever phenomenon and damage frequency converter in loading procedure;
2, utilize the variable-frequency motor I of equal height and the armature spindle of load motor under the connection taken turns, the object that frequency converter is loaded can be reached;
3, the height that the height of operator's console and human body are stood adapts, and interface layout is reasonable, makes operator can not produce sense of fatigue at the trial;
4, this testing equipment is stable and reliable for performance, uses easy to operate, can carry out zero load, loading, principal and subordinate's on-line test to the frequency converter of various model.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 invention structural scheme of mechanism;
Fig. 2 is variable-frequency motor I and load motor connection diagram;
Fig. 3 is operator's console structural representation.
In figure: 1, high voltage control case; 2, operator's console; 3, primary transducer; 4, cooling platform; 5, from frequency converter; 6, variable-frequency motor II; 7, load motor; 8, variable-frequency motor I; 9, stationary platform; 10, to wheel.
Embodiment
As shown in Figure 1 to Figure 3, a kind of mine coal cutter frequency converter load test equipment, high voltage control case 1 is a power supply source, and it comprises high-tension transformer, low-tension transformer, vacuum contactor and fuse; Primary transducer 3 connects high voltage control case 1 by converter cable, provides 400V voltage by high voltage control case 1 to it, and primary transducer 3 output terminal connects variable-frequency motor I 8; Connect high voltage control case 1 from frequency converter 5 by converter cable, provide 400V voltage by high voltage control case 1 to it, be connected with primary transducer 3 by master-slave communication equipment from frequency converter 5, connect variable-frequency motor II 6 from frequency converter 5 output terminal; Load motor 7 connects high voltage control case 1, and provide 1140V voltage by high voltage control case 1 to it, variable-frequency motor I 8 and load motor 7 are fixed on stationary platform 9, and on the same axis, two armature spindles are fixedly connected with wheel 10 by one the armature spindle of variable-frequency motor I 8 and load motor 7; Primary transducer 3 and respectively place a cooling platform 4 from frequency converter 5, the heat of frequency converter when being used for transmitting frequency converter load test, play cooling effect, cooling platform 4 comprises for placing primary transducer 3 and the iron plate shell from frequency converter 5, flaky aluminum matter support is welded with in iron plate shell, arrange multiple exhaust fan in iron plate shell symmetria bilateralis, exhaust fan connects 220V voltage in high voltage control case 1; Operator's console 2 is connected with high voltage control case 1, the cooperatively interact starting, loading, the principal and subordinate that control master and slave frequency converter 3,5 of operator's console 2 and high voltage control case 1 is online, the height that operator's console 2 height and human body are stood adapts, be provided with one piece of touch-screen on the left of operator's console 2 panel, for showing frequency converter host interface and coalcutter output current under control state far away, whether left and right walk signal is normal; Be provided with 4 pieces of electric current and voltage Displaying Meters on the right side of operator's console 2 panel, be respectively used to the display of operator's console input voltage, the display of A phase load current of electric, B phase load current of electric, C phase load current of electric; The panel of operator's console 2 is also provided with 8 pilot lamp and 10 action buttons, pilot lamp is respectively: power supply, variable frequency starting, load start, lead send, closely control, control far away, standby one and standby two, standby one and standby two is two pilot lamp for subsequent use, 10 action buttons are power transmission respectively, always stop, variable frequency starting, frequency conversion stopping, load startup, load stop, nearly control/far control selection, led/led stop, left lateral, right lateral.
The present invention for detect primary transducer with from the performance of frequency converter and working condition, can complete and the bringing onto load frequency conversion of primary transducer test, from the frequency conversion test of frequency converter and detect primary transducer and from frequency converter communication between the two and control.
Below operating process:
One, frequency converter no-load test:
1, the preliminary work before frequency converter test: cooling platform is removed clean, and be evenly coated with unconcerned heat-conducting silicone grease, tested frequency converter base plate is wiped clean and is placed on cooling platform, connect cooling platform fan power supply, make fan running, connect all cables, plug Frequency Converter Control dish.
2, operator's console closely control/control button far away selects nearly control state.
3, by power switch, distant place 1140V switch closes a floodgate, and in high voltage control case, vacuum contactor obtains electric combined floodgate, and it is bright that operator's console closely controls display lamp, voltage table display 220V.
4, press operator's console variable frequency starting button, frequency converter obtains electric, and operator's console frequency converter pilot lamp is bright simultaneously.
5, make operation board as nearly control state, the parameters such as setting inverter load Rated motor electric current, rated speed.
6, carry out frequency converter by operation board operation button and debate knowledge.
7, given frequency converter runs rated speed, and frequency converter motor is run, and observes motor and turn to, and then by frequency converter stop button, frequency converter is stopped.
8, by load motor start button, observe load motor and turn to, load motor stop button is pressed in time delay, when confirming that variable-frequency motor turns to consistent with load motor, enters loading link.Frequency converter load test.
Two, frequency converter load test:
1,20.02 parameters (maximum permissible speed) are set to 1010r/min.
2, push keyboard REF given speed is 990r/min.
3, push keyboard start button, makes frequency converter motor run, and observes motor rotation direction, guarantees that experiment electric motor axle traffic direction is consistent with load motor axle traffic direction.
4, when experiment electric motor axle is consistent with load motor axle traffic direction, press load motor start button, load motor runs, when stable, read experiment electric motor data.
5, increase tested frequency converter given rotating speed to 995 r/min, when motor is stable, read experiment electric motor data.
6, continue to increase tested frequency converter given rotating speed to 1007 r/min, when motor is stable, read experiment electric motor data.
7, when inverter current is close to experiment electric motor rated current, stop increasing given rotating speed.
8, reduce frequency converter motor speed to 995 r/min, cut off load motor power supply.
9, time delay push dish stop button, makes frequency converter dead electricity.
10, converter power supply is cut off.
Three, frequency converter Long-distance Control test:
1, operator's console button is selected far to control state, and by power knob, frequency converter obtains electric.
2, lead by frequency converter operator's console and send start button, touch display screen normally shows frequency converter duty.
3, by console panel LOC/REM, frequency converter is made to be in Long-distance Control state.
4, by PAR key assignments parameter, make parameter 10.01 (EXT1 STAR/STOP/DIR) for (DI1,2), parameter 10.02 (EXT2 STAR/STOP/DIR) is (DI1,2), other parameter constant.
5, press low-converter operator's console left lateral button, frequency converter receives from PLC enabling signal, and frequency converter runs, inverter output terminal motor operation, touch-screen display left lateral, and shows current of electric.
6, pin left lateral button, motor accelerated service, press right lateral button, motor deceleration operates.
7, press to lead and stop button, motor is out of service, and touch-screen display is led and stopped, and electric current is shown as 0.
8, press right lateral button, motor, by running in the other direction, falls by the right side, motor reduction of speed, touch-screen display corresponding state.
Four, principal and subordinate's frequency converter on-line test
(1), another inverter input is connected with the mains, is exported termination motor.
(2) principal and subordinate's frequency converter order wire, is connected.
(3), power on to frequency converter.
(4) two Frequency Converter Control dishes, are made to be in nearly control state.
(5), respectively identification is carried out to two frequency converters.
(6), principal and subordinate's converter parameter setting.
1), primary transducer major parameter presses following setting, other parameter constant:
| Parameter group | Title/selection | Primary transducer | From frequency converter |
| 10.01 | EXT1 STAR/Stop/DIR | DI1，2 | COMM.CW |
| 10.02 | EXT1 STAR/Stop/DIR | DI1，2 | COMM.CW |
| 11.01 | KEYPAD REF SEL | REF1(rpm) | REF2(rpm) |
| 11.02 | EXT1/EXT2 SELECT | EXT1 | EXT2 |
| 11.03 | EXT REF1 SELECT | DI3U4D(R) | COMM.REF |
| 11.06 | EXT1 REF2 SELECT | DI3U4D(R) | COMM.REF |
| 14.03 | RELAY RO2 OUTPUT | FAULT | FAULT(-) |
| 16.01 | RUN ENABLE | Yes+DI6 | COMM.CW |
| 60.01 | MADTER LINK MODE | MASTER | FOLLOWER |
2), press start button primary transducer output terminal motor running, also run from inverter motor, normally.
3), press stop button, principal and subordinate's motor that frequency converter is with is out of service.
Claims (5)
1. a mine coal cutter frequency converter load test equipment, its special card is: the operator's console (2) comprising high voltage control case (1) and the connection control high voltage control case (1) be connected with power supply; Described high voltage control case (1) is connected to primary transducer (3), from frequency converter (5) and load motor (7); Described primary transducer (3) is connected from frequency converter (5) with described by master-slave communication equipment, and the output terminal of primary transducer (3) is connected with variable-frequency motor I (8); Described variable-frequency motor I (8) turns to identical with described load motor (7), and both armature spindles are connected; Describedly be connected with variable-frequency motor II (6) from frequency converter (5) output terminal.
2. mine coal cutter frequency converter load test equipment according to claim 1, its special card is: described variable-frequency motor I (8) and load motor (7) are fixed by a stationary platform (9), on the same axis, two armature spindles are fixedly connected with wheel (10) by one the armature spindle of variable-frequency motor I (8) and load motor (7).
3. mine coal cutter frequency converter load test equipment according to claim 1, its special card is: described high voltage control case (1) comprises high-tension transformer, low-tension transformer, vacuum contactor and fuse; Described load motor (7) connects 1140V voltage in high voltage control case (1); Described primary transducer (3) and connect 400V voltage high voltage control case (1) from frequency converter (5).
4. mine coal cutter frequency converter load test equipment according to claim 1, its special card is: described primary transducer (3) and be respectively placed with a cooling platform (4) from frequency converter (5); Described cooling platform (4) comprises for placing primary transducer (3) and the iron plate shell from frequency converter (5); In described iron plate shell, be welded with flaky aluminum matter support, arrange multiple exhaust fan in iron plate shell symmetria bilateralis; Described exhaust fan connects 220V voltage in high voltage control case (1).
5. mine coal cutter frequency converter load test equipment according to claim 1, its special card is: the panel of described operator's console (2) is provided with one piece of touch-screen, 4 pieces of electric current and voltage Displaying Meters, 10 action buttons and 8 pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628512.2A CN104375030A (en) | 2014-11-11 | 2014-11-11 | Frequency converter loading test device for mining coal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628512.2A CN104375030A (en) | 2014-11-11 | 2014-11-11 | Frequency converter loading test device for mining coal cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104375030A true CN104375030A (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410628512.2A Pending CN104375030A (en) | 2014-11-11 | 2014-11-11 | Frequency converter loading test device for mining coal cutter |
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| CN (1) | CN104375030A (en) |
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Application publication date: 20150225 |
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