CN202841049U - Dual-mode intelligent motor energy saver - Google Patents
Dual-mode intelligent motor energy saver Download PDFInfo
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- CN202841049U CN202841049U CN 201220393119 CN201220393119U CN202841049U CN 202841049 U CN202841049 U CN 202841049U CN 201220393119 CN201220393119 CN 201220393119 CN 201220393119 U CN201220393119 U CN 201220393119U CN 202841049 U CN202841049 U CN 202841049U
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Abstract
The utility model relates to energy-saving protection equipment and provides a dual-mode intelligent motor energy saver, which comprises an intelligent control unit, a voltage sampling unit, a frequency converter and a contactor. The voltage sampling unit, the frequency converter and the contactor are connected with the intelligent control unit. The contactor is also connected with the frequency converter. The energy saver also comprises an input filter unit and an output filter unit. The intelligent control unit performs the analytical judgment on received load information and motor running information and then sends out instructions to the frequency converter and the contactor. In this way, the load of a motor is enabled to obtain a corresponding voltage to realize the load tracking energy-saving purpose, and/or the input power is rapidly adjusted according to the load variation of the motor to realize the frequency-conversion energy-saving purpose. According to the technical scheme of the utility model, due to the adoption of the dual-mode intelligent motor energy saver, the load-tracking energy-saving measure, the frequency-conversion energy-saving measure, and the frequency-conversion and load-tracking energy-saving measure can all be carried out, so that the loss of the motor is reduced. The operating efficiency of the motor is improved. Meanwhile, due to the adoption of the input filter unit and the output filter unit, the filtering operation on input and output voltages can be realized, and both high-order and low-order harmonic waves are inhibited. The power grid is therefore purified and the power factor is improved.
Description
Technical field
The utility model relates to electricity-saving protection equipment, specifically a kind of bi-mode intelligent electric motor saver.
Background technology
Motor for blower fan water pump class adjustable speed, adopt the method for frequency control can obtain reasonable effect, but at present for not allowing the motor of speed governing to lack corresponding technical solution greatly, and the technology platform of general phased electricity-saving appliance is relatively backward, and harsh to load request in actual applications, power savings is undesirable.
During the normal operation motor, selected rated power, the common power that all surpasses actual needs, because the demand (load factor) in the production technology changes, at this moment, motor self can not be made corresponding power adjustments again.
On present Driving technique for motor, the product of frequency control has obtained certain application and has popularized, but in actual production, more motor does not allow to slow down, can only be operated in the power frequency state, such as punch press, lathe, disintegrating machine, conveyer belt etc., and the load factor of motor is not high at this moment, the height of motor operational efficiency (power output/input power * 100%) depends on the height of load factor (power output/rated power * 100%), load factor is more inefficient lower, though the application of motor is general in the enterprise, but most motors all often are in zero load, underloading, in carry and the situation of varying load under move, load-rate of motor low (" low load with strong power ") in actual production process, inefficiency, electric energy terminal utilance is less than 40%, and waste of energy is serious.
The utility model content
For the deficiencies in the prior art, the utility model provides a kind of bi-mode intelligent electric motor saver, integrates to follow the trail of loading functional and frequency control function, effectively guarantees the motor safety operation.
For achieving the above object, the utility model is achieved through the following technical solutions: a kind of bi-mode intelligent electric motor saver, comprise intelligent control unit, the voltage sample unit, frequency converter and the contactor that are connected with described intelligent control unit, described contactor also links to each other with described frequency converter, described electricity-saving appliance also comprises input filter unit and output filtering unit
Input filter unit and output filtering unit are respectively to the input three-phase electricity, and the output three-phase electricity is carried out filtering;
The voltage sample unit gathers output voltage signal, and this signal is sent to intelligent control unit;
Intelligent control unit is collected the operation information of load information and motor, carries out the backward frequency converter of comprehensive analysis processing and contactor and sends instruction, makes motor load obtain corresponding voltage, and/or to the motor operation that automatically adjusts.
Further, described intelligent control unit, comprise inductor, memory, arithmetic unit, controller and I/O interface, the output of described controller links to each other with the input of described memory and described arithmetic unit respectively, the input of described memory also links to each other with described controller, described I/O interface respectively with output, and the output of described inductor links to each other with the input of described memory.
Further, input, output filtering unit suppress high and low subharmonic by the resonant circuit that resistance R, inductance L, capacitor C form, and purify electrical network, improve power factor.
The beneficial effects of the utility model are: adopt intelligent control unit to analyze judgement according to motor load information and the motor operation information received, then send instruction to frequency converter and contactor; Make motor load obtain relevant voltage and to realize following the trail of load energy-conservation; And/or simultaneously to the load variations rapid adjustment input power of motor to realize energy-saving and frequency-variable; Realize to follow the trail of that load is energy-conservation, energy-saving and frequency-variable and frequency conversion+trackings be energy-conservation, reduces the loss of motor, the operational efficiency of raising motor; Adopt the input and output filter unit that input and output voltage is carried out filtering, suppress high low-order harmonic, purify electrical network, improve power factor (PF).
Description of drawings
Fig. 1 is the theory diagram of utility model.
Embodiment
Now with embodiment the utility model is further specified by reference to the accompanying drawings.
With reference to shown in Figure 1, a kind of bi-mode intelligent electric motor saver, comprise intelligent control unit 1, the voltage sample unit 2, frequency converter 3 and the contactor 4 that are connected with described intelligent control unit 1, described contactor 4 also links to each other with described frequency converter 3, described electricity-saving appliance also comprises input filter unit 5 and output filtering unit 6
6 yuan of input filter unit 5 and output filtering lists are respectively to the input three-phase electricity, and the output three-phase electricity is carried out filtering;
Further, described intelligent control unit 1, comprise inductor 11, memory 12, arithmetic unit 13, controller 14 and I/O interface 15, the output of described controller 14 links to each other with the input of described memory 12 and described arithmetic unit 13 respectively, the input of described memory 12 also links to each other with described controller 14, described I/O interface 15 respectively with output, and the output of described inductor 11 links to each other with the input of described memory 12.
Further, input filter unit 5, output filtering unit 6 suppress high and low subharmonic by the resonant circuit that resistance R, inductance L, capacitor C form, and purify electrical network, improve power factor.
The operation information (comprising voltage, rotating speed etc.) of the motor that described intelligent control unit 1 collects according to inductor 11 and the information of the motor load that voltage sample unit 2 collects are carried out comprehensive analysis processing, according to the node Mathematical Modeling of optimizing, the power-saving running power consumption that calculates motor the write music efficiency curve of line, efficiency curve, load and the efficiency curve of frequency converter, then send instruction by intelligent control unit 1 to frequency converter 3 and contactor 4, make motor load obtain relevant voltage and to realize following the trail of load energy-conservation; And/or simultaneously to the load variations rapid adjustment input power of motor to realize energy-saving and frequency-variable; Realize to follow the trail of that load is energy-conservation, energy-saving and frequency-variable and frequency conversion+trackings be energy-conservation, reduces the loss of motor, the operational efficiency of raising motor; Adopt input filter unit 5, the 6 pairs of input and output voltages in output filtering unit to carry out filtering, suppress high low-order harmonic, purify electrical network, improve power factor (PF).
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection range of the present utility model.
Claims (2)
1. bi-mode intelligent electric motor saver, it is characterized in that, comprise intelligent control unit, the voltage sample unit, frequency converter and the contactor that are connected with described intelligent control unit, described contactor also links to each other with described frequency converter, described electricity-saving appliance also comprises input filter unit and output filtering unit
Input filter unit and output filtering unit are respectively to the input three-phase electricity, and the output three-phase electricity is carried out filtering;
The voltage sample unit gathers output voltage signal, and this signal is sent to intelligent control unit;
Intelligent control unit is collected the operation information of load information and motor, carries out the backward frequency converter of comprehensive analysis processing and contactor and sends instruction, makes motor load obtain corresponding voltage, and/or to the motor operation that automatically adjusts.
2. a kind of bi-mode intelligent electric motor saver according to claim 1, it is characterized in that, described intelligent control unit, comprise inductor, memory, arithmetic unit, controller and I/O interface, the output of described controller links to each other with the input of described memory and described arithmetic unit respectively, the input of described memory also links to each other with described controller, described I/O interface respectively with output, and the output of described inductor links to each other with the input of described memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220393119 CN202841049U (en) | 2012-08-09 | 2012-08-09 | Dual-mode intelligent motor energy saver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220393119 CN202841049U (en) | 2012-08-09 | 2012-08-09 | Dual-mode intelligent motor energy saver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202841049U true CN202841049U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220393119 Expired - Fee Related CN202841049U (en) | 2012-08-09 | 2012-08-09 | Dual-mode intelligent motor energy saver |
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| CN (1) | CN202841049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323887A (en) * | 2021-06-01 | 2021-08-31 | 广州大学城投资经营管理有限公司 | Energy-saving device for water pump system of central air conditioner |
-
2012
- 2012-08-09 CN CN 201220393119 patent/CN202841049U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323887A (en) * | 2021-06-01 | 2021-08-31 | 广州大学城投资经营管理有限公司 | Energy-saving device for water pump system of central air conditioner |
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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: 20130327 Termination date: 20150809 |
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| EXPY | Termination of patent right or utility model |