CN202455304U - Multi-head quick-switching device for motor - Google Patents
Multi-head quick-switching device for motor Download PDFInfo
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- CN202455304U CN202455304U CN2012200759117U CN201220075911U CN202455304U CN 202455304 U CN202455304 U CN 202455304U CN 2012200759117 U CN2012200759117 U CN 2012200759117U CN 201220075911 U CN201220075911 U CN 201220075911U CN 202455304 U CN202455304 U CN 202455304U
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- switching device
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model provides a multi-head quick-switching device for a motor. The multi-head quick-switching device for the motor comprises an analogue/digital (A/D) converter (1) for collecting and converting data of three-phase voltage of a motor unit, three-phase current of the motor unit and rotation speed of the motor unit. The A/D converter (1) is connected with an input end of a digital signal processing (DSP) central processor (2), an output end of the DSP central processor (2) is connected with a plurality of contactors (4) through a universal interface (3), the contactors (4) are connected with the corresponding motor unit (5) which inputs signals into the A/D converter (1) through a signal line. The multi-head quick-switching device for the motor improves power factors and performance of the motor, reduces noise of the motor, prolongs service life of the motor, and achieves the purposes of saving power and protecting the motor.
Description
Technical field
The utility model relates to the motor switching device shifter that possesses commutation circuit or motor operating state.
Background technology
The motor of water pump, blower fan and so on is the common equipment in each industrial and mining enterprises, and its use amount is bigger, is the power consumption rich and influential family, then has very important effect as this part is economized on electricity effectively.Because motor generally is under specified power, to turn round, its rotating speed is non-adjustable, and motor can only be under leaving or stopping two states; Even when heat load is very little; Also must open, the power consumption of motor is much larger than the needs of actual loading, thereby causes unnecessary energy consumption.For example, when actual loading only needs the capacity of 1.2 motor just enough, also must open two motors, therefore, wherein the power consumption of 0.8 motor capacity is to have wasted.In addition, differ greatly,, certainly will cause wasting of electric power if carry out high rotating speed operation with unified motor for peak time electricity consumption of big-and-middle-sized factory and slack hours electricity consumption.
Summary of the invention
The utility model will solve above-mentioned deficiency exactly, and a kind of motor bull apparatus for fast switching is provided, and is used for the running status of commutation circuit or motor, makes motor power output and load matched in real time, reduces the loss of electric machine, reaches economize on electricity, protects the purpose of motor.
In order to achieve the above object; The utility model provides a kind of motor bull apparatus for fast switching; Comprise the data acquisition that is used for motor unit three-phase voltage, three-phase current and motor generating unit speed and the A/D analog to digital converter of conversion; Said A/D analog to digital converter is connected with the input of DSP central processing unit; The output of said DSP central processing unit is connected with several contactors through general-purpose interface, and said contactor is connected with its corresponding motor unit, and said motor unit is imported the A/D analog to digital converter through holding wire with signal.
Said DSP central processing unit adopts the DSPIC33FJ64GP706 chip.
The motor unit is switched said DSP central processing unit and protection comprises the steps:
A). the current running status judgement of machine, current motor is being moved at a high speed or under the lower-speed state, and perhaps operation is high speed unit or low speed unit and the judgement of other units;
B). the current running status of machine is switched, and switches the different speeds of service of current motor, perhaps between different units, switches, perhaps the operation part of switchover operation unit;
C). handoff procedure is judged, in handoff procedure, judges whether handover success automatically, if fail in the handoff procedure, will point out the content and carry out failure procedure is revised of failing, and in handoff procedure, unit protected;
D). unit in service is protected; The electric current and voltage data are returned and add up in the controller and calculate in the running; When various fault appears in operating unit, according to the electric current and voltage data of statistical computation automatically the unit when moving carry out real-time guard;
E). automatically switch, in the running, according to the preset set time, perhaps preset condition automaticallyes switch and moves unit, when the unit fault can't be repaired in real time, automatic switchover fault unit;
F). switching mode is selected, can switch according to prior defined procedure.
The utility model operation principle: the A/D analog to digital converter is before this to the data acquisition and the conversion of current motor unit three-phase voltage, three-phase current and motor generating unit speed; Ruuning situation through the real-time computational discrimination unit of DSP central processing unit; According to preset set time or preset condition; Being switched on or switched off between control general-purpose interface and several contactors reaches the purpose of automatic switchover motor.Perhaps drive contactor high speed contact, low speed contact or close being switched on or switched off of closed contact, reach high-speed cruising, the low cruise state of switch motor and cut off the electricity supply.Have only the handoff failure of working as, or operating unit is when various fault occurring, the contactor closing contact is connected, and cuts off the power supply of motor, aligns the motor that is in operation and carries out real-time guard.
Wherein, switching device shifter can be according to the actual requirements be revised or adjust time or the condition switched, and can move automatically and switch or manually switch.
In sum, data such as voltage, electric current, motor speed were gathered in real time, are calculated when this device can move motor, switch between control general-purpose interface and several contactors, thus switch motor; Perhaps drive the high speed contact of contactor, the running status of low speed contact switch motor, when the machine of operation breaks down, can also cut off the electricity supply automatically and protect in real time.
Can know by technique scheme:Through reducing the power output that motor speed reduces motor, make its power output and real-time load matched, reduce the copper loss and the iron loss of motor; Improve the power factor of motor; Improve the starting of motor and shut down performance, and can reduce the loss of electric machine, thereby reach economize on electricity; 30%～40% power saving rate is generally arranged, and its power savings is remarkable; And reduce motor noise, prolong its useful life.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Fig. 1 is the utility model circuit structure block diagram;
Fig. 2 is the schematic diagram of the utility model circuit contacts device;
Among the figure: the 1-A/D analog to digital converter, the 2-DSP central processing unit, the 3-general-purpose interface, the 4-contactor, 4.1-high speed contact, 4.2-closes closed contact, 4.3-low speed contact, 5-motor unit.
Embodiment
Embodiment one
Circuit structure block diagram as shown in Figure 1; A kind of motor bull apparatus for fast switching; Comprise the data acquisition of the three-phase voltage, three-phase current and the motor generating unit speed that are used for motor unit 5 and the A/D analog to digital converter 1 of conversion; Said A/D analog to digital converter 1 is connected with the input of the DSP central processing unit 2 that adopts the DSPIC33FJ64GP706 chip; The output of said DSP central processing unit 2 is connected with three contactors 4 through general-purpose interface 3; Contactor 4A, contactor 4B and contactor 4C respectively with its corresponding motor unit 5 in motor 5A, motor 5B, motor 5C be connected, motor 5A, motor 5B, motor 5C import A/D analog to digital converter 1 through holding wire with signal again.
Embodiment two
The schematic diagram of contactor as shown in Figure 2; The DSP central processing unit through general-purpose interface control contactor 4 high speed contact 4.1, low speed contact 4.3 and close closed contact 4.2, high-speed cruising state, the low cruise state of motor switched with the closing of circuit switch be connected.Reach control, and work as handoff failure, or motor connects the pass closed contact 4.2 of contactor when various fault occurring, cut off the power supply of motor, align the motor that is in operation and carry out real-time guard motor speed.
Embodiment three
The motor unit is switched the DSP central processing unit and protection is undertaken by following step:
1. the current running status judgement of machine, current motor is being moved at a high speed or under the lower-speed state, and perhaps operation is high speed unit or low speed unit and the judgement of other units.
2. the current running status of machine is switched, and switches the different speeds of service of current motor, perhaps between different units, switches even the operation part of switchover operation unit.
3. handoff procedure is judged, in handoff procedure, judges whether handover success automatically, if fail in the handoff procedure, will point out the content and carry out failure procedure is revised of failing, and in handoff procedure, unit protected.This step can preestablish, automatically operation.
4. unit in service is protected; The electric current and voltage data can be returned and add up in the controller and calculate in its running; When various fault appears in operating unit, controller will according to the electric current and voltage data of statistical computation automatically the unit when moving carry out real-time guard.
5. automatically switch, in running, can be according to the preset set time, perhaps preset condition automaticallyes switch and moves unit, when the unit fault can't be repaired in real time, automatic switchover fault unit.
6. switching mode is selected, can switch according to prior defined procedure.
Adopting above-mentioned is that step is switched machine, perhaps machine state, and the real time data acquisition during the machine operation breaks down constantly at the machine of operation, protects in real time.Wherein also can revise and to adjust per step according to the actual requirements.Can moving perhaps automatically, the user manually carries out.
Embodiment four
The moving forced draft fan of transferring of two axial-flow type of air and flue system configuration of boiler, the rotating speed under the rated power of its forced draft fan motor is 1490r/min.The motor switching device shifter of the utility model is connected with power supply with the motor of these two forced draft fans, in advance forced draft fan motor progression is set at 4/6 utmost point, rotating speed is 1488/990r/min, and rated power is 710kw/560kw.The A/D analog to digital converter sends to the DSP central processing unit with the data acquisition of motor unit three-phase voltage, three-phase current and the motor generating unit speed of two forced draft fans and conversion and calculates in real time; Judge the ruuning situation of two motors; Being switched on or switched off of the contactor that the driving of control general-purpose interface is connected with motor reaches the purpose of automatic switchover motor unit.As after the rotating speed that reaches setting was the condition of 1488r/min, general-purpose interface was connected the contactor that is connected with high speed forced draft fan motor, and the startup high-speed electric expreess locomotive turns round; In like manner, after the rotating speed that reaches setting was the condition of 990r/min, general-purpose interface was connected the contactor with low speed forced draft fan motor, started the slowspeed machine running.So just can be implemented in and carry out under the non-stop-machine situation of motor switching each other automatically between two kinds of motors.
Above embodiment is not limited only to the protection range of the utility model, all based on the basic thought of the utility model and make amendment or the protection range that all belongs to the utility model that changes in.
Claims (2)
1. motor bull apparatus for fast switching; It is characterized in that: comprise the data acquisition that is used for motor unit three-phase voltage, three-phase current and motor generating unit speed and the A/D analog to digital converter (1) of conversion; Said A/D analog to digital converter (1) is connected with the input of DSP central processing unit (2); The output of said DSP central processing unit (2) is connected with several contactors (4) through general-purpose interface (3); Said contactor (4) is connected with its corresponding motor unit (5), and said motor unit (5) is imported A/D analog to digital converter (1) through holding wire with signal.
2. motor bull apparatus for fast switching according to claim 1 is characterized in that: said DSP central processing unit (2) adopts the DSPIC33FJ64GP706 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200759117U CN202455304U (en) | 2012-03-02 | 2012-03-02 | Multi-head quick-switching device for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200759117U CN202455304U (en) | 2012-03-02 | 2012-03-02 | Multi-head quick-switching device for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202455304U true CN202455304U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200759117U Expired - Fee Related CN202455304U (en) | 2012-03-02 | 2012-03-02 | Multi-head quick-switching device for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202455304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545731A (en) * | 2012-03-02 | 2012-07-04 | 安徽徽电科技股份有限公司 | Motor multi-head quickly switching device |
-
2012
- 2012-03-02 CN CN2012200759117U patent/CN202455304U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545731A (en) * | 2012-03-02 | 2012-07-04 | 安徽徽电科技股份有限公司 | Motor multi-head quickly switching device |
| CN102545731B (en) * | 2012-03-02 | 2014-04-30 | 安徽徽电科技股份有限公司 | Motor multi-head quickly switching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20180302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |