CN215109631U - Fan power-saving control system - Google Patents
Fan power-saving control system Download PDFInfo
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- CN215109631U CN215109631U CN202121286343.0U CN202121286343U CN215109631U CN 215109631 U CN215109631 U CN 215109631U CN 202121286343 U CN202121286343 U CN 202121286343U CN 215109631 U CN215109631 U CN 215109631U
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- power
- electricity
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- fan
- saving
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- 238000009529 body temperature measurement Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 15
- 230000033228 biological regulation Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model discloses a fan economize on electricity control system, its structure is that the positive negative pole of control drive module is connected with the positive negative pole of three-phase rectifier bridge, control drive module output is connected with economize on electricity contactor input, the wiring electricity is connected between economize on electricity contactor output and commercial power contactor output and the three-phase current output, the wiring electricity is connected between three-phase rectifier bridge input and the commercial power contactor input and the circuit breaker, the three-phase current input is connected with the circuit breaker electricity, power management module is connected with the relay controller power electricity, power management module respectively with control drive module, the microcomputer control unit, the signal detection unit, harmonic repayment unit, temperature measurement feedback unit and sensor signal connection. The utility model has the advantages that: the series connection and the parallel connection can realize the exchange of commercial power and electricity saving, ensure the stable operation of the system and effectively meet the production requirement. The embedded intelligent control and the variable frequency speed regulation of the fan can be realized, the power waste is avoided, the fan is enabled to operate in the optimal working state all the time, and a large amount of electric energy is saved.
Description
Technical Field
The utility model relates to a fan economize on electricity control system.
Background
When the fan is started, the current impacts the power grid greatly, so that the power grid is unstable; and the noise is great during operation, has great influence to the field work personnel.
The fan in the prior art usually adjusts the air quantity by adjusting the opening degree of the air door, the common adjusting mode plays a role in adjusting the air quantity, but the air quantity is controlled by adjusting the opening degree of the valve, so that the fan can be in a high-pipe-resistance operation state for a long time, the pipe resistance of a system is greatly increased, the actual operating point of the fan is far away from a rated operating point, the operation efficiency of the system is reduced, the power factor of a motor is lower, and a certain electric energy waste phenomenon exists.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fan economize on electricity control system, its purpose aims at overcoming the above-mentioned not enough that prior art exists, avoids the extravagant phenomenon of power, makes the fan move throughout at best operating condition, saves a large amount of electric energy.
The technical solution of the utility model is as follows: the fan power-saving control system structurally comprises a control driving module, a three-phase rectifier bridge, a power-saving contactor, a power management module, a relay controller and a temperature measurement feedback unit, wherein the positive and negative poles of the control driving module are connected with the positive and negative poles of a three-phase rectifier bridge, the output end of the control driving module is connected with the input end of the power-saving contactor, the output end of the power-saving contactor is electrically connected with the output end of a mains supply contactor and the output end of a three-phase power supply, the input end of the three-phase rectifier bridge is electrically connected with the input end of the mains supply contactor and a circuit breaker, the input end of the three-phase power supply is electrically connected with the circuit breaker, the power management module is electrically connected with a power supply of the relay controller, and the power management module is respectively in signal connection with the control driving module, the microcomputer control unit, the signal detection unit, the harmonic feedback unit, the temperature measurement feedback unit and the sensor.
Preferably, the temperature measurement feedback unit is a temperature measurement instrument.
The utility model has the advantages that: the utility model has the advantages of structural design is reasonable, has the bypass function, and the commercial power-economize on electricity interchange can all be realized to series connection and parallelly connected two kinds of modes, can guarantee the steady operation of system, effectively satisfies the production needs. The embedded intelligent control and the variable frequency speed regulation of the fan can be realized, the power waste phenomenon commonly existing in fan equipment due to model selection or load change can be effectively avoided, the fan is enabled to always operate in the optimal working state, and a large amount of electric energy is saved.
Drawings
Fig. 1 is a structural block diagram of the fan power-saving control system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and embodiments.
As shown in fig. 1, the blower power-saving control system is structured such that the positive and negative poles of the control drive module are connected with the positive and negative poles of the three-phase rectifier bridge, the output end of the control drive module is connected with the input end of the power-saving contactor, the output end of the power-saving contactor is electrically connected with the output end of the commercial power contactor and the output end of the three-phase power supply, the input end of the three-phase rectifier bridge is electrically connected with the input end of the commercial power contactor and the circuit breaker, the input end of the three-phase power supply is electrically connected with the circuit breaker, the power supply management module is electrically connected with the power supply of the relay controller, and the power supply management module is respectively in signal connection with the control drive module, the microcomputer control unit, the signal detection unit, the harmonic feedback unit, the temperature measurement feedback unit and the sensor.
The temperature measurement feedback unit is a temperature measurement instrument.
According to above structure, during operation, can realize:
(1) speed regulation and electricity saving: the power of the motor can be adjusted, so that the operation of the motor and equipment is always kept at the optimal economic equivalent, and the aim of saving electricity for the motor is fulfilled.
(2) Reactive compensation power saving: compensation by injecting current, i.e. by injecting current equal to the harmonic and reactive currents to be compensated into the system, can be used. Specifically, the controller (microcomputer control unit) analyzes the harmonic and reactive current components needing to be compensated according to the signals sampled by the signal detection unit and the harmonic feedback unit, and then controls the space voltage vector PWM control signal of the IGBT (through controlling the driving module) by solving a differential equation set, so that the current needing to be compensated is just output after the voltage output by the IGBT inverter bridge acts on the connecting reactance of the device, and the power utilization efficiency can be greatly improved through reactive compensation.
(3) Improve the power supply quality of the power grid and save electricity: the built-in special transient filtering device (three-phase rectifier bridge) can effectively eliminate transient, surge, peak and other interference clutter generated by a power grid circuit and effectively correct voltage drop, sinking, harmonic and other waveform distortions, thereby effectively improving the power quality and improving the power supply quality.
(4) Light-load voltage reduction and electricity saving: the circuit loss can be reduced, the safety of an electric system is improved, the light load voltage reduction is realized, the efficiency is improved, and the constant rotating speed can be maintained.
(5) Soft start power saving: the induction motor in the prior art usually adopts a method of directly connecting to a power grid for starting, the starting current of the motor is 5-7 times of rated time, the loss is large, the impact on the power grid is large, and the mechanical abrasion and vibration are large; the system can be started by adopting frequency conversion and speed regulation, the starting current can be limited to be very small, and if the system is started in full load, the starting current is only slightly larger than the rated current, so that the starting loss is greatly reduced, and the system does not impact a power grid or a machine.
All the above components are prior art, and those skilled in the art can use any model and existing design that can implement their corresponding functions.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (2)
1. The fan power-saving control system is characterized in that the positive and negative electrodes of a control driving module are connected with the positive and negative electrodes of a three-phase rectifier bridge, the output end of the control driving module is connected with the input end of a power-saving contactor, the output end of the power-saving contactor is electrically connected with the output end of a mains supply contactor and the output end of a three-phase power supply, the input end of the three-phase rectifier bridge is electrically connected with the input end of the mains supply contactor and a circuit breaker, the input end of the three-phase power supply is electrically connected with the circuit breaker, a power management module is electrically connected with a relay controller power supply, and the power management module is respectively in signal connection with the control driving module, a microcomputer control unit, a signal detection unit, a harmonic feedback unit, a temperature measurement feedback unit and a sensor.
2. The fan power-saving control system according to claim 1, wherein the temperature measurement feedback unit is a temperature measurement instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121286343.0U CN215109631U (en) | 2021-06-09 | 2021-06-09 | Fan power-saving control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121286343.0U CN215109631U (en) | 2021-06-09 | 2021-06-09 | Fan power-saving control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215109631U true CN215109631U (en) | 2021-12-10 |
Family
ID=79305185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121286343.0U Active CN215109631U (en) | 2021-06-09 | 2021-06-09 | Fan power-saving control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215109631U (en) |
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2021
- 2021-06-09 CN CN202121286343.0U patent/CN215109631U/en active Active
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