CN204119093U - A kind of coal-winning machine driving system for switched reluctance - Google Patents
A kind of coal-winning machine driving system for switched reluctance Download PDFInfo
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- CN204119093U CN204119093U CN201420544599.0U CN201420544599U CN204119093U CN 204119093 U CN204119093 U CN 204119093U CN 201420544599 U CN201420544599 U CN 201420544599U CN 204119093 U CN204119093 U CN 204119093U
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- switched reluctance
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Abstract
A kind of coal-winning machine driving system for switched reluctance, belongs to switched reluctance machines technical equipment field.Comprise multiple motor control unit (1), motor control unit major loop (8) and motor control unit control circuit (2) is provided with in motor control unit (1), the outlet side of motor control unit major loop (8) is all connected with a switched reluctance machines (7), it is characterized in that: be provided with power inverter unit (5), power inverter unit (5) is connected with the motor control unit control circuit (2) in described multiple motor control unit (1) by bus, be connected with the motor control unit major loop (8) in described multiple motor control unit (1) by DC bus (9) simultaneously.By arranging a power inverter unit driving plurality motor control unit in native system, eliminating the inversion unit in first motor control unit, reducing the overall volume of system, on-the-spot demand can be met simultaneously.
Description
Technical field
A kind of coal-winning machine driving system for switched reluctance, belongs to switched reluctance machines technical equipment field.
Background technology
It is little that switched reluctance machines has starting current, the advantage that starting torque is large, and be suitable for use in very much in the occasion of heavy-load start, often commutation, in recent years along with the development of technology, switched reluctance machines obtains application in multiple occasion.Coal-winning machine needs often to move back and forth when coal underground work, frequent start-stop, during use motor pulling motion, motor drive direction often switches, and the situation that load often changes can be run in running, increase work efficiency to save electric energy, switched reluctance machines is used in coal-winning machine, the characteristic that motor starting currents is little can be given full play to, realize energy-conservation.
In seam mining, in order to exploit the needs of girdle, ultra-thin coal seam, it is less that coal-winning machine volume generally designs, switched reluctance motor controller in the market generally adopts asymmetrical half-bridge structure, the IGBT power model quantity used is the twice of Same Efficieney low-converter IGBT power model used quantity, and heating loss is also large.Meanwhile, in the prior art, a general motor control unit controls a switched reluctance machines, is provided with inversion unit separately in motor control unit, and it is larger that this also result in conventional motor control unit volume.
In coal-winning machine application; motor is due to the operation that often commutates; and need long-time running under braking when colliery descending; in order to energy-conservation general be four quadrant running by design of electrical motor; electric machine controller needs to increase the grid-connected feedback module of braking energy, and conventional switched reluctance motor controller volume is comparatively large, and the drive motors that coal-winning machine needs simultaneously is generally more than two motors; make switched reluctance motor controller overall volume comparatively large, be difficult to meet on-the-spot actual needs.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of coal-winning machine driving system for switched reluctance is provided, by arranging a power inverter unit driving plurality motor control unit in native system, eliminate the inversion unit in original motor control unit, reduce the overall volume of system, on-the-spot demand can be met simultaneously.
The utility model solves the technical scheme that its technical problem adopts: this coal-winning machine driving system for switched reluctance, comprise multiple motor control unit, motor control unit major loop and motor control unit control circuit is provided with in motor control unit, the outlet side of motor control unit major loop is all connected with a switched reluctance machines, it is characterized in that: be provided with power inverter unit, power inverter unit is connected with the motor control unit control circuit in described multiple motor control unit by bus, be connected with the motor control unit major loop in described multiple motor control unit by DC bus simultaneously.
Preferably, power inverter unit control circuit and power inverter unit major loop is provided with in described power inverter unit, wherein power inverter unit major loop is connected with described motor control unit major loop by DC bus, and power inverter unit control circuit is connected with described motor control unit control circuit by bus.
Preferably, the power of described power inverter unit is more than or equal to the power sum of all motor control units.
Preferably, described power inverter unit control circuit is connected with human-computer interaction interface.
Preferably, described power inverter unit major loop adopts three-phase inverter bridge circuit topological structure.
Preferably, described motor control unit major loop adopts asymmetrical three-phase semibridge system topological structure.
Preferably, in the middle of the front panel of described power inverter unit, two symmetrical handles are installed; At the front panel upper right side of described motor control unit and lower-left end, one handles is installed respectively.
Preferably, described bus is CAN.
Preferably, described power inverter unit and motor control unit adopt water cooling radiating mode, and power device is concentrated and is placed in each unit water-filled radiator base plate lower end, and storage capacitor etc. are placed in base plate upper end.
Preferably, described motor control unit symmetry is positioned at power inverter unit both sides.
Compared with prior art, the beneficial effect that the utility model has is:
1, native system is interior eliminates the inversion unit in original motor control unit by arranging a power inverter unit driving plurality motor control unit, reduces the overall volume of system, can meet on-the-spot demand simultaneously.
2, use power inverter unit and human-computer interaction interface to realize interactive controlling, each motor control unit no longer designs Man Machine Interface, and is only received the instruction of power inverter unit transmission by CAN, can reduce cable amount, simplify Interface design.
3, when carrying out integral installation, power inverter unit being placed between each motor control unit, making the length of line minimum.
In the middle of the front panel of power inverter unit, be provided with two symmetrical handles, front panel upper right side and the lower-left end of each motor control unit install a handles respectively, make installation more convenient.
4, power inverter unit and each motor control unit all adopt water cooling radiating mode, utilize water-filled radiator as the base plate of controller, power device IGBT concentrates and is placed in each unit water-filled radiator base plate lower end, and storage capacitor etc. are placed in base plate upper end, are more conducive to the heat radiation of system.
Accompanying drawing explanation
Fig. 1 is coal-winning machine driving system for switched reluctance structural representation.
Wherein: 1, motor control unit 2, motor control unit control circuit 3, CAN 4, human-computer interaction interface 5, power inverter unit 6, power inverter unit control circuit 7, switched reluctance machines 8, motor control unit major loop 9, DC bus 10, AC input lines cable 11, power inverter unit major loop 12, handle.
Embodiment
Fig. 1 is most preferred embodiment of the present utility model, is described further below in conjunction with accompanying drawing 1 pair of the utility model.
As shown in Figure 1, coal-winning machine driving system for switched reluctance comprises a power inverter unit 5 and is symmetricly set on the multiple electric motors control unit 1 of power inverter unit 5 both sides, the separate setting of multiple electric motors control unit 1 of power inverter unit 5 and its both sides.
Motor control unit control circuit 2, motor control unit major loop 8 and other accessory circuits (not shown in FIG.) identical with prior art are provided with in motor control unit 1, unlike the prior art, in the motor control unit 1 of this coal-winning machine with driving system for switched reluctance, eliminate original inversion unit, the outlet side of the motor control unit major loop 8 in each motor control unit 1 is all connected with a switched reluctance machines 7.Power inverter unit control circuit 6, power inverter unit major loop 11 and other accessory circuits (not shown in FIG.) identical with prior art are provided with in power inverter unit 5.The power of power inverter unit 5 is more than or equal to the power sum of all motor control units 1.
Power inverter unit control circuit 6 is connected by CAN 3 with the motor control unit control circuit 2 in all motor control units 1, CAN 3 can adopt Double-strand transmission signal, be connected with aviation socket by aviation plug with between the motor control unit control circuit 2 in power inverter unit control circuit 6 and all motor control units 1, instruction is sent to each motor control unit 1 by CAN 3, the operation of control switch reluctance motor 7 after receiving the external command of human-computer interaction interface 4 input by power inverter unit control circuit 6.
Same as the prior art, power inverter unit control circuit 6 comprises the necessary peripheral circuit composition of kernel processor chip, signal isolating chip, power semiconductor driving chip and each chip operation.The signal output part of kernel control chip is connected to the input of signal isolating chip, the output of signal isolating chip is connected to the input of power semiconductor driving chip, and the output of power semiconductor driving chip is connected to the signal controlling input of power semiconductor in power inverter unit major loop 11.
Low and high level control signal is sent after kernel control chip receives the control command that human-computer interaction interface 4 sends, the output of power semiconductor driving chip is controlled by signal isolating chip, the output signal of power semiconductor driving chip then controls opening and shutoff of the power semiconductor in power inverter unit major loop 11, thus realize the break-make of motor winding, control motor and run.
Kernel control chip realizes by Micro-processor MCV or digital signal processor DSP, owing to being connected by CAN 3 between power inverter unit control circuit 6 with motor control unit control circuit 2, therefore Micro-processor MCV or digital signal processor DSP preferably carry the chip realization of CAN interface, as PIC18F256(Micro-processor MCV) or TMS320F2812(digital signal processor DSP), also the chip not with CAN interface can be adopted to realize, as P89V51(Micro-processor MCV) or ADSP2185M(digital signal processor DSP), as used chip not with CAN interface as kernel control chip, then only need to increase CAN conversion chip separately.Signal isolating chip can adopt the chip of Multiple Type to realize, as: TLP521,6N137; Power semiconductor driving chip also can adopt various chips to realize, as 2SD0108T, MC57962.
Motor control unit control circuit 2 in motor control unit 1 is same as the prior art, just eliminates original inversion unit.
The AC of power inverter unit major loop 11 delivered to by the three-phase alternating-current supply that AC input lines cable 10 inputs, and the DC side of power inverter unit major loop 11 is connected with the DC side of the motor control unit major loop 8 in all motor control units 1 by DC bus 9.Power inverter unit control circuit 6 connects human-computer interaction interface 4 simultaneously.Use power inverter unit 5 and human-computer interaction interface 4 to realize interactive controlling, each motor control unit 1 no longer designs Man Machine Interface, and is only received the instruction of power inverter unit 5 transmission by CAN, can reduce cable amount, simplify Interface design.
Electronic or the running under braking of motor control unit 1 control switch reluctance motor 7, when switched reluctance machines 7 does electric operation, power inverter unit 5 is responsible for that the three-phase alternating current that AC input lines cable 10 inputs is rectified into direct current and is supplied to motor control unit 1; When switched reluctance machines 7 does running under braking, the DC inverter that motor control unit 1 sends becomes alternating current to feed back in electrical network by power inverter unit 5.
At this coal-winning machine with in driving system for switched reluctance, power inverter unit major loop 11 adopts three-phase inverter bridge circuit topological structure, and motor control unit major loop 8 adopts asymmetrical three-phase semibridge system topological structure.Power inverter unit 5 and each motor control unit 1 all adopt water cooling radiating mode, utilize water-filled radiator as the base plate of controller, and power device IGBT concentrates and is placed in each unit water-filled radiator base plate lower end, and storage capacitor etc. are placed in base plate upper end.
At this coal-winning machine with in driving system for switched reluctance, in order to easy for installation, power inverter unit 5 is placed between each motor control unit 1 when carrying out integral installation, in the middle of the front panel of power inverter unit 5, be provided with two symmetrical handles 12, the front panel upper right side of each motor control unit 1 and lower-left end install a handles 12 respectively.
The input and output cable of DC bus 9 and CAN 3 adopts and can the terminal of fast insert-pull be connected.Power inverter unit control circuit 6 is provided with the input/output interface that can receive external switch amount signal and RS232C rs 232 serial interface signal, is controlled the operation of each motor control unit 1 after power inverter unit 5 receives external command by CAN respectively.
The above, it is only preferred embodiment of the present utility model, be not restriction the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solutions of the utility model content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present utility model, still belong to the protection range of technical solutions of the utility model.
Claims (10)
1. a coal-winning machine driving system for switched reluctance, comprise multiple motor control unit (1), motor control unit major loop (8) and motor control unit control circuit (2) is provided with in motor control unit (1), the outlet side of motor control unit major loop (8) is all connected with a switched reluctance machines (7), it is characterized in that: be provided with power inverter unit (5), power inverter unit (5) is connected with the motor control unit control circuit (2) in described multiple motor control unit (1) by bus, be connected with the motor control unit major loop (8) in described multiple motor control unit (1) by DC bus (9) simultaneously.
2. coal-winning machine driving system for switched reluctance according to claim 1, it is characterized in that: in described power inverter unit (5), be provided with power inverter control circuit (6) and power inverter unit major loop (11), wherein power inverter unit major loop (11) is connected with described motor control unit major loop (8) by DC bus (9), and power inverter control circuit (6) is connected with described motor control unit control circuit (2) by bus.
3. coal-winning machine driving system for switched reluctance according to claim 1 and 2, is characterized in that: the power of described power inverter unit (5) is more than or equal to the power sum of all motor control units (1).
4. coal-winning machine driving system for switched reluctance according to claim 2, is characterized in that: described power inverter control circuit (6) is connected with human-computer interaction interface (4).
5. coal-winning machine driving system for switched reluctance according to claim 2, is characterized in that: described power inverter unit major loop (11) adopts three-phase inverter bridge circuit topological structure.
6. coal-winning machine driving system for switched reluctance according to claim 2, is characterized in that: described motor control unit major loop (8) adopts asymmetrical three-phase semibridge system topological structure.
7. coal-winning machine driving system for switched reluctance according to claim 2, is characterized in that: in the middle of the front panel of described power inverter unit (5), be provided with two symmetrical handles (12);
At the front panel upper right side of described motor control unit (1) and lower-left end, one handles (12) is installed respectively.
8. coal-winning machine driving system for switched reluctance according to claim 1 and 2, is characterized in that: described bus is CAN (3).
9. coal-winning machine driving system for switched reluctance according to claim 1, it is characterized in that: described power inverter unit (5) and motor control unit (1) adopt water cooling radiating mode, power device is concentrated and is placed in each unit water-filled radiator base plate lower end, and storage capacitor etc. are placed in base plate upper end.
10. coal-winning machine driving system for switched reluctance according to claim 3, is characterized in that: described motor control unit (1) symmetry is positioned at power inverter unit (5) both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544599.0U CN204119093U (en) | 2014-09-22 | 2014-09-22 | A kind of coal-winning machine driving system for switched reluctance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544599.0U CN204119093U (en) | 2014-09-22 | 2014-09-22 | A kind of coal-winning machine driving system for switched reluctance |
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| CN204119093U true CN204119093U (en) | 2015-01-21 |
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| CN201420544599.0U Active CN204119093U (en) | 2014-09-22 | 2014-09-22 | A kind of coal-winning machine driving system for switched reluctance |
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- 2014-09-22 CN CN201420544599.0U patent/CN204119093U/en active Active
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