CN204044590U - A kind of mine power resource switched system - Google Patents
A kind of mine power resource switched system Download PDFInfo
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- CN204044590U CN204044590U CN201420504742.3U CN201420504742U CN204044590U CN 204044590 U CN204044590 U CN 204044590U CN 201420504742 U CN201420504742 U CN 201420504742U CN 204044590 U CN204044590 U CN 204044590U
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Abstract
The utility model belongs to the technical field of mine power resource switched system, the technical matters solved is: provide a kind of and avoid the mine power resource switched system that maloperation causes loop short circuit, master driver damages spare drive, the technical scheme adopted is: a kind of mine power resource switched system, comprise: the common motor M 1 driving a belt, motor M 2 and motor M 3, the power end of described motor M 1, the power end of motor M 2 and the power end of motor M 3 respectively with the output terminal of the first frequency converter, the output terminal of the second frequency converter is connected with the output terminal of the 3rd frequency converter, described system also comprises: the first disconnector Q1, second disconnector Q2, 3rd disconnector Q3, first soft starter, second soft starter, 3rd soft starter, 4th disconnector Q4, 5th disconnector Q5, 6th disconnector Q6 and PLC, be applicable to field, colliery.
Description
Technical field
The utility model belongs to the technical field of mine power resource switched system.
Background technology
In field, colliery, the output of most of colliery at the beginning of design is not high, but along with the normal operation in colliery, a lot of colliery all can be extended, because enlarging work and coal production are carried out usually all simultaneously, so the transport power on its supply line is not promoted on a large scale, and to mate with turnout, just must extend the working time of main transportation equipment.
In sum, the long-time reliability service incessantly of transportation equipment has become the key factor ensureing coal mine output, and in the operational system of transportation equipment, driver element is owing to being the combination drive of forceful electric power light current and Control protection all more complicated, so be the easiest out of order part always, in recent years, mine-used frequency-converter and soft starter obtained a large amount of uses as driver element on coal master's equipment of conveyer, in order to solve the long playing problem of transportation equipment, a lot of ore deposit side all can on the basis of original driver element a driver element for subsequent use in parallel, driver element for subsequent use can be switched to rapidly, to ensure the uninterrupted operation of transportation equipment when main driver element breaks down, when main driver element is frequency converter, forbid driver element for subsequent use also for frequency converter because when two frequency converters directly parallel connection time, two quadrant frequency converters can anti-power transmission, causes directly exploding IGBT, and when main driver element and driver element for subsequent use are soft starter, although driver element for subsequent use can be switched to rapidly when main driver element breaks down in theory, but can find that in practical operation voltage that main driver element exports can cause the controllable silicon fatigue breakdown of driver element for subsequent use, so when needs switch to driver element for subsequent use, driver element for subsequent use damages, in addition, interlocking cannot be realized between main driver element in operation and driver element for subsequent use, field personnel is easy to maloperation, make main driver element and driver element for subsequent use power transmission simultaneously, cause short circuit accident.
Utility model content
The utility model overcomes the deficiency that prior art exists, and technical matters to be solved is: provide a kind of and avoid the mine power resource switched system that maloperation causes loop short circuit, master driver damages spare drive.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of mine power resource switched system, comprise: the common motor M 1 driving a belt, motor M 2 and motor M 3, the power end of described motor M 1, the power end of motor M 2 and the power end of motor M 3 respectively with the output terminal of the first frequency converter, the output terminal of the second frequency converter is connected with the output terminal of the 3rd frequency converter, described system also comprises: the first disconnector Q1, second disconnector Q2, 3rd disconnector Q3, first soft starter, second soft starter, 3rd soft starter, 4th disconnector Q4, 5th disconnector Q5, 6th disconnector Q6 and PLC, described first disconnector Q1 is serially connected on the circuit between described first frequency converter and motor M 1, described second disconnector Q2 is serially connected on the circuit between described second frequency converter and motor M 2, described 3rd disconnector Q3 is serially connected on the circuit between described 3rd frequency converter and motor M 3, described first soft starter is connected with the power end of described motor M 1 by described 4th disconnector Q4, described second soft starter is connected with the power end of described motor M 2 by described 5th disconnector Q5, described 3rd soft starter is connected with the power end of described motor M 3 by described 6th disconnector Q6, the first described disconnector Q1, second disconnector Q2, 3rd disconnector Q3, 4th disconnector Q4, 5th disconnector Q5 is all connected with described PLC with the 6th disconnector Q6, described PLC also with for controlling the first frequency converter, the relay K 1 of the second frequency converter and the 3rd frequency converter and for controlling the first soft starter, second soft starter is connected with the relay K 2 of the 3rd soft starter.
One end of the normally opened contact Q1.1 of described first disconnector Q1, one end of the normally opened contact Q4.1 of the 4th disconnector Q4, one end of the normally opened contact Q2.1 of the second disconnector Q2, one end of the normally opened contact Q5.1 of the 5th disconnector Q5, one end of one end of the normally opened contact Q3.1 of the 3rd disconnector Q3 and the normally opened contact Q6.1 of the 6th disconnector Q6 respectively with the input port I0.0 of described PLC, input port I0.1, input port I0.2, input port I0.3, input port I0.4 is connected with input port I0.5, the other end of the normally opened contact Q1.1 of described first disconnector Q1 also connects the other end of the normally opened contact Q4.1 of described 4th disconnector Q4, the other end of the normally opened contact Q2.1 of the second disconnector Q2, the other end of the normally opened contact Q5.1 of the 5th disconnector Q5, the other end of the normally opened contact Q3.1 of the 3rd disconnector Q3 is connected with the DC voltage positive output port VO+ of described PLC with after the other end of the normally opened contact Q6.1 of the 6th disconnector Q6, the output public port 1M of described PLC, export public port 2M and the equal ground connection of DC voltage negative output port VO-, one end of the coil K1.1 of described relay K 1, one end of the coil K2.1 of relay K 2 respectively with the output port Q0.1 of described PLC, output port I0.2 is connected, the other end of the coil K1.1 of described relay K 1 is also connected with the output public port 1L/2L of PLC by 42V AC power after connecing the other end of the coil K2.1 of described relay K 2, the FireWire port port L of described PLC is connected with zero line port N by 220V AC power, described system also comprises Human machine interface 1, and described Human machine interface 1 is connected by the PORT COM of communication interface with described PLC, the communication interface of described Human machine interface 1 is RS232 interface, described Human machine interface 1 comprises the display screen of 5.7 cun.
The utility model compared with prior art has following beneficial effect:
Main driver element in the utility model is frequency converter, driver element for subsequent use is soft starter, each frequency converter and soft starter are all connected with corresponding motor by corresponding disconnector, the input port that the auxiliary contact of each disconnector are all corresponding with PLC is connected, and the output port of PLC respectively to control the frequency converter corresponding relay whether out of service with soft starter and be connected, during work, PLC can know the opening and closing state of corresponding disconnector by the folding condition of each auxiliary contact of monitoring, and then learn corresponding frequency converter or the selection mode of soft starter, when PLC monitors frequency converter corresponding to three motors and soft starter mixing is selected, signal is sent to relay, the actuating of relay, the corresponding frequency converter of locking and soft starter, avoid and damage because maloperation causes belt feeder (frequency converter and soft starter run asynchronous cause).
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail;
Fig. 1 is structural representation of the present utility model;
In figure: 1 is the first frequency converter, 2 is the second frequency converter, and 3 is the 3rd frequency converter, and 4 is the first soft starter, and 5 is the second soft starter, and 6 is the 3rd soft starter, and 7 is PLC, and 8 is 42V AC power, and 9 is 220V AC power.
Embodiment
As shown in Figure 1, a kind of mine power resource switched system, comprising: the common motor M 1 driving a belt, motor M 2 and motor M 3, the power end of described motor M 1, the power end of motor M 2 and the power end of motor M 3 respectively with the output terminal of the first frequency converter 1, the output terminal of the second frequency converter 2 is connected with the output terminal of the 3rd frequency converter 3, and described system also comprises: the first disconnector Q1, second disconnector Q2, 3rd disconnector Q3, first soft starter 4, second soft starter 5, 3rd soft starter 6, 4th disconnector Q4, 5th disconnector Q5, 6th disconnector Q6 and PLC 7, described first disconnector Q1 is serially connected on the circuit between described first frequency converter 1 and motor M 1, described second disconnector Q2 is serially connected on the circuit between described second frequency converter 2 and motor M 2, described 3rd disconnector Q3 is serially connected on the circuit between described 3rd frequency converter 3 and motor M 3, described first soft starter 4 is connected with the power end of described motor M 1 by described 4th disconnector Q4, described second soft starter 5 is connected with the power end of described motor M 2 by described 5th disconnector Q5, described 3rd soft starter 6 is connected with the power end of described motor M 3 by described 6th disconnector Q6, the first described disconnector Q1, second disconnector Q2, 3rd disconnector Q3, 4th disconnector Q4, 5th disconnector Q5 is all connected with described PLC 7 with the 6th disconnector Q6, described PLC 7 also with for controlling the first frequency converter 1, the relay K 1 of the second frequency converter 2 and the 3rd frequency converter 3 and for controlling the first soft starter 4, second soft starter 5 is connected with the relay K 2 of the 3rd soft starter 6.
Particularly, one end of the normally opened contact Q1.1 of described first disconnector Q1, one end of the normally opened contact Q4.1 of the 4th disconnector Q4, one end of the normally opened contact Q2.1 of the second disconnector Q2, one end of the normally opened contact Q5.1 of the 5th disconnector Q5, one end of one end of the normally opened contact Q3.1 of the 3rd disconnector Q3 and the normally opened contact Q6.1 of the 6th disconnector Q6 respectively with the input port I0.0 of described PLC 7, input port I0.1, input port I0.2, input port I0.3, input port I0.4 is connected with input port I0.5, the other end of the normally opened contact Q1.1 of described first disconnector Q1 also connects the other end of the normally opened contact Q4.1 of described 4th disconnector Q4, the other end of the normally opened contact Q2.1 of the second disconnector Q2, the other end of the normally opened contact Q5.1 of the 5th disconnector Q5, the other end of the normally opened contact Q3.1 of the 3rd disconnector Q3 is connected with the DC voltage positive output port VO+ of described PLC 7 with after the other end of the normally opened contact Q6.1 of the 6th disconnector Q6, the output public port 1M of described PLC 7, export public port 2M and the equal ground connection of DC voltage negative output port VO-, one end of the coil K1.1 of described relay K 1, one end of the coil K2.1 of relay K 2 respectively with the output port Q0.1 of described PLC 7, output port I0.2 is connected, the other end of the coil K1.1 of described relay K 1 is also connected with the output public port 1L/2L of PLC 7 by 42V AC power 8 after connecing the other end of the coil K2.1 of described relay K 2, the FireWire port port L of described PLC 7 is connected with zero line port N by 220V AC power 9.
Particularly, described system also comprises Human machine interface 1, described Human machine interface 1 is connected by the PORT COM of communication interface with described PLC 7, the communication interface of described Human machine interface 1 is RS232 interface, described Human machine interface 1 comprises the display screen of 5.7 cun, by described Human machine interface 1, the opening and closing state of six disconnectores can be observed in real time, and then can know that frequency converter is online or soft starter online, also can demonstrate warning clause when needs locking frequency converter and soft starter.
Mine power resource switched system in the present embodiment can be applicable to field, colliery, also can be applicable to the occasion that other are similar, not only make can switch to driver element for subsequent use fast when main driver element breaks down, ensure that the uninterrupted operation of transportation equipment, also solve and effective active and standby interlocking measure cannot be set, when the easy maloperation of field staff causes major loop short circuit accident and active and standby power transmission in parallel, power transmission side damages the main devices of prepped side, the problem that when causing needing to reinstate standby host, standby host has damaged, there is substantive distinguishing features and progress, by reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (5)
1. a mine power resource switched system, comprise: the common motor M 1 driving a belt, motor M 2 and motor M 3, the power end of described motor M 1, the power end of motor M 2 and the power end of motor M 3 respectively with the output terminal of the first frequency converter (1), the output terminal of the second frequency converter (2) is connected with the output terminal of the 3rd frequency converter (3), it is characterized in that: described system also comprises: the first disconnector Q1, second disconnector Q2, 3rd disconnector Q3, first soft starter (4), second soft starter (5), 3rd soft starter (6), 4th disconnector Q4, 5th disconnector Q5, 6th disconnector Q6 and PLC (7), described first disconnector Q1 is serially connected on the circuit between described first frequency converter (1) and motor M 1, described second disconnector Q2 is serially connected on the circuit between described second frequency converter (2) and motor M 2, described 3rd disconnector Q3 is serially connected on the circuit between described 3rd frequency converter (3) and motor M 3, described first soft starter (4) is connected with the power end of described motor M 1 by described 4th disconnector Q4, described second soft starter (5) is connected with the power end of described motor M 2 by described 5th disconnector Q5, described 3rd soft starter (6) is connected with the power end of described motor M 3 by described 6th disconnector Q6, the first described disconnector Q1, second disconnector Q2, 3rd disconnector Q3, 4th disconnector Q4, 5th disconnector Q5 is all connected with described PLC (7) with the 6th disconnector Q6, described PLC (7) also with for controlling the first frequency converter (1), the relay K 1 of the second frequency converter (2) and the 3rd frequency converter (3) and for controlling the first soft starter (4), second soft starter (5) is connected with the relay K 2 of the 3rd soft starter (6).
2. a kind of mine power resource switched system according to claim 1, it is characterized in that: one end of the normally opened contact Q1.1 of described first disconnector Q1, one end of the normally opened contact Q4.1 of the 4th disconnector Q4, one end of the normally opened contact Q2.1 of the second disconnector Q2, one end of the normally opened contact Q5.1 of the 5th disconnector Q5, one end of one end of the normally opened contact Q3.1 of the 3rd disconnector Q3 and the normally opened contact Q6.1 of the 6th disconnector Q6 respectively with the input port I0.0 of described PLC (7), input port I0.1, input port I0.2, input port I0.3, input port I0.4 is connected with input port I0.5, the other end of the normally opened contact Q1.1 of described first disconnector Q1 also connects the other end of the normally opened contact Q4.1 of described 4th disconnector Q4, the other end of the normally opened contact Q2.1 of the second disconnector Q2, the other end of the normally opened contact Q5.1 of the 5th disconnector Q5, the other end of the normally opened contact Q3.1 of the 3rd disconnector Q3 is connected with the DC voltage positive output port VO+ of described PLC (7) with after the other end of the normally opened contact Q6.1 of the 6th disconnector Q6, the output public port 1M of described PLC (7), export public port 2M and the equal ground connection of DC voltage negative output port VO-, one end of the coil K1.1 of described relay K 1, one end of the coil K2.1 of relay K 2 respectively with the output port Q0.1 of described PLC (7), output port I0.2 is connected, the other end of the coil K1.1 of described relay K 1 is also connected with the output public port 1L/2L of PLC (7) by 42V AC power (8) after connecing the other end of the coil K2.1 of described relay K 2, the FireWire port port L of described PLC (7) is connected with zero line port N by 220V AC power (9).
3. a kind of mine power resource switched system according to claim 2, is characterized in that: described system also comprises Human machine interface 1, and described Human machine interface 1 is connected by the PORT COM of communication interface with described PLC (7).
4. a kind of mine power resource switched system according to claim 3, is characterized in that: the communication interface of described Human machine interface 1 is RS232 interface.
5. a kind of mine power resource switched system according to claim 3, is characterized in that: described Human machine interface 1 comprises the display screen of 5.7 cun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420504742.3U CN204044590U (en) | 2014-09-03 | 2014-09-03 | A kind of mine power resource switched system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420504742.3U CN204044590U (en) | 2014-09-03 | 2014-09-03 | A kind of mine power resource switched system |
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| CN204044590U true CN204044590U (en) | 2014-12-24 |
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| CN201420504742.3U Active CN204044590U (en) | 2014-09-03 | 2014-09-03 | A kind of mine power resource switched system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181856A (en) * | 2014-09-03 | 2014-12-03 | 山西潞安海通工贸有限公司 | Mining power supply switching system |
| CN104767425A (en) * | 2015-04-21 | 2015-07-08 | 山东大学 | Double-unit parallel connection device of power plant emergency direct-current oil pump starter and control method thereof |
-
2014
- 2014-09-03 CN CN201420504742.3U patent/CN204044590U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181856A (en) * | 2014-09-03 | 2014-12-03 | 山西潞安海通工贸有限公司 | Mining power supply switching system |
| CN104767425A (en) * | 2015-04-21 | 2015-07-08 | 山东大学 | Double-unit parallel connection device of power plant emergency direct-current oil pump starter and control method thereof |
| CN104767425B (en) * | 2015-04-21 | 2017-07-11 | 山东大学 | The double parallel device and its control method of a kind of emergent direct current pump start device of power plant |
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