CN203071863U - Intelligent controller for saving power for electric motor - Google Patents
Intelligent controller for saving power for electric motor Download PDFInfo
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- CN203071863U CN203071863U CN2013200876365U CN201320087636U CN203071863U CN 203071863 U CN203071863 U CN 203071863U CN 2013200876365 U CN2013200876365 U CN 2013200876365U CN 201320087636 U CN201320087636 U CN 201320087636U CN 203071863 U CN203071863 U CN 203071863U
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- electric motor
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Abstract
The utility model relates to an intelligent controller for saving power for an electric motor. The intelligent controller for saving power for the electric motor includes a single-chip microprocessor controller, a signal modulator, an AD converter, a synchronous detection circuit, a function setting port, a photoelectric isolator, a signal amplifying circuit and a thyristor triggering circuit. A single-chip microprocessor is adopted as the main controller, so that input voltage of the electric motor can be reduced automatically for keeping a rotate speed constant without manual adjustment when the electric motor is in a light loading working condition. The intelligent controller for saving power for the electric motor is especially suitable for the light loading working condition or a working condition with frequently-changing loading. The power-saving rate of the electric motor can be increased. At the same time, a power factor of the electric motor can be increased, line loss of a power grid and copper loss of a transformer are reduced, and a service lifetime of the electric motor is prolonged.
Description
Technical field
The utility model Based Intelligent Control instrument equipment technical field relates to a kind of motor electricity saving intelligent controller, is used for the electricity-saving protection of threephase asynchronous.
Background technology
Phase asynchronous alternating current motor is subjected to extensive use owing to simple in structure, easy to use and reliable, but the maximum user of power consumption have the electric energy more than 50% to be consumed by motor according to measuring and calculating, and wherein 20% electric energy consumes in vain.In actual use, threephase asynchronous usually is to move under underloading, rather than under rated power, work, formed so-called " low load with strong power " phenomenon.Caused the energy to waste in a large number on the one hand, caused the reduction of motor power factor on the one hand, the electric energy that consumes is converted to heat makes motor temperature raise, and seriously influence this useful life to motor.Usually the every reduction of motor temperature can make prolong one times the useful life of motor for 10 ℃.The electricity-saving protection of three-phase AC asynchronous motor is the focus of electric motors research always, and the situation of power supply shortage in recent years particularly makes that the research and extension of energy-saving equipment of AC asynchronous motor is more urgent.
Therefore, design a kind of threephase asynchronous electricity-saving intelligent controller, according to the change at random of load and regulate the input voltage of motor automatically, realize the motor continuous firing under electricity-saving state cheaply, the motor that is particularly suitable for varying duty is applying working condition at random.
Summary of the invention
The purpose of this utility model is to provide a kind of motor electricity saving intelligent controller, be used for to realize that motor can continuous firing under electricity-saving state cheaply, and according to the load variations at random of motor and regulate input voltage automatically, the motor that is particularly suitable for varying duty is applying working condition at random.
The technical solution adopted in the utility model is: a kind of motor electricity saving intelligent controller comprises singlechip controller, signal conditioner, AD converter, sync detection circuit, function setting port, photoisolator, signal amplification circuit and thyristor gating circuit; Sync detection circuit directly is connected with singlechip controller with the function setting port; Thyristor gating circuit is connected to singlechip controller through signal amplification circuit and photoisolator; Signal conditioner receives external setting-up, voltage feedback and current feedback three tunnel inputs, is connected to singlechip controller through electronic switch and AD converter.
Sync detection circuit is made of synchrotrans, comparator and photoelectric isolating device, and it is the comparator of LM339 that comparator is selected model for use, and it is the photoelectrical coupler of 6N137 that photoelectrical coupler is selected model for use.
It is the single-chip microcomputer of AT89S52 that singlechip controller is selected model for use.
It is 12 times of AD converter of high speed of AD574 that AD converter is selected model for use.
The beneficial effects of the utility model are that a kind of motor electricity saving intelligent controller adopts intelligentized singlechip controller, need not manual adjustment and make motor under the underload operating mode, and the input voltage of motor reduces automatically and makes rotating speed keep constant.Be particularly suitable for low load or load variations operating mode frequently, the average power saving rate of motor is 16%～30%.Simultaneously can improve the power of electric motor factor, reduce the copper loss that grid line undermines transformer, prolong the useful life of motor.
Description of drawings
Fig. 1 is system of the present utility model composition diagram.
Fig. 2 control flow chart of the present utility model.
Embodiment
As Fig. 1, a kind of motor electricity saving intelligent controller comprises singlechip controller, signal conditioner, AD converter, sync detection circuit, function setting port, photoisolator, signal amplification circuit and thyristor gating circuit; Sync detection circuit directly is connected with singlechip controller with the function setting port; Thyristor gating circuit is connected to singlechip controller through signal amplification circuit and photoisolator; Signal conditioner receives external setting-up, voltage feedback and current feedback three tunnel inputs, is connected to singlechip controller through electronic switch and AD converter.
External signal is given regularly by bulk potential device etc., enters singlechip controller by program setting through AD converter, and AD converter has been selected 12 times of A/D converter AD574 at a high speed for use, and conversion speed is the requirement that 25 μ s satisfy system fully.Carry out processing such as rectification, filtering through signal conditioner after, signal is converted to digital signal and enters singlechip controller through AD converter.
Sync detection circuit is made of synchrotrans, comparator and photoelectric isolating device, and it is the comparator of LM339 that comparator is selected model for use, and it is the photoelectrical coupler of 6N137 that photoelectrical coupler is selected model for use.
It is the single-chip microcomputer of AT89S52 that singlechip controller is selected model for use.This single-chip microcomputer includes three timers; two exterior interrupt include the Flash memory of 8KB, the internal data memory of 256 bytes; also have the kinds of protect function, in system, need not to expand interrupt, the timing controlled chip can satisfy the native system job requirement fully.The triggering signal that singlechip controller is sent forms the control signal of thyristor after photoisolator, signal amplification circuit, thyristor gating circuit.
As Fig. 2, after system powered on, singlechip controller at first carried out initialization, after the initialization, gathered port data.Determine to trigger the given way at angle according to port data, convert set-point to corresponding time value and deposit designating unit in.The interrupt signal that is caused by sync detection circuit is sent the triggering signal of thyristor, according to external setting-up, shows corresponding content, has realized the adjustable continuously of load voltage (electric current), and the voltage (electric current) of reality is compared with specified value.During the electricity-saving appliance design fuzzy control is incorporated in the control system, fuzzy control does not rely on the mathematical models of controlled device, can overcome effect of non-linear.FUZZY ALGORITHMS FOR CONTROL is used for alternating current motor electricity-saving intelligent controller, take full advantage of non-linear, the time the accelerate characteristics of speed response, to play the effect of economize on electricity.
Claims (4)
1. a motor electricity saving intelligent controller is characterized in that comprising singlechip controller, signal conditioner, AD converter, sync detection circuit, function setting port, photoisolator, signal amplification circuit and thyristor gating circuit; Sync detection circuit directly is connected with singlechip controller with the function setting port; Thyristor gating circuit is connected to singlechip controller through signal amplification circuit and photoisolator; Signal conditioner receives external setting-up, voltage feedback and current feedback three tunnel inputs, is connected to singlechip controller through electronic switch and AD converter.
2. a kind of motor electricity saving intelligent controller as claimed in claim 1, it is characterized in that sync detection circuit is made of synchrotrans, comparator and photoelectric isolating device, it is the comparator of LM339 that comparator is selected model for use, and it is the photoelectrical coupler of 6N137 that photoelectrical coupler is selected model for use.
3. a kind of motor electricity saving intelligent controller as claimed in claim 1 is characterized in that it is the single-chip microcomputer of AT89S52 that singlechip controller is selected model for use.
4. a kind of motor electricity saving intelligent controller as claimed in claim 1 is characterized in that it is 12 times of AD converter of high speed of AD574 that AD converter is selected model for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200876365U CN203071863U (en) | 2013-02-26 | 2013-02-26 | Intelligent controller for saving power for electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200876365U CN203071863U (en) | 2013-02-26 | 2013-02-26 | Intelligent controller for saving power for electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203071863U true CN203071863U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200876365U Expired - Fee Related CN203071863U (en) | 2013-02-26 | 2013-02-26 | Intelligent controller for saving power for electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203071863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684174A (en) * | 2013-12-11 | 2014-03-26 | 中冶南方（武汉）自动化有限公司 | Automatic energy-saving method of asynchronous motor |
-
2013
- 2013-02-26 CN CN2013200876365U patent/CN203071863U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684174A (en) * | 2013-12-11 | 2014-03-26 | 中冶南方（武汉）自动化有限公司 | Automatic energy-saving method of asynchronous motor |
| CN103684174B (en) * | 2013-12-11 | 2016-03-16 | 中冶南方（武汉）自动化有限公司 | A kind of method of asynchronous machine automatic energy saving |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU YITONG ELECTRICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: SHAANXI SCIENCE AND ENGINEERING COLLEGE Effective date: 20141015 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gong Chengyong Inventor before: Hou Hongling |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HOU HONGLING TO: GONG CHENGYONG Free format text: CORRECT: ADDRESS; FROM: 723000 HANZHONG, SHAANXI PROVINCE TO: 510000 GUANGZHOU, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141015 Address after: Baiyun District of Guangzhou City, Guangdong province 510000 Kau Kau village road No. 3 by heart Room 501 Patentee after: Guangzhou Yitong Electrical Equipment Co. Ltd. Address before: Street 723000 Hantai District of Hanzhoung City, Shaanxi Province, Dongguan No. 505 Patentee before: Shaanxi Science and Engineering College |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20160226 |