CN101047359A - Intelligent adaptive electric saver - Google Patents
Intelligent adaptive electric saver Download PDFInfo
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- CN101047359A CN101047359A CNA2006100404617A CN200610040461A CN101047359A CN 101047359 A CN101047359 A CN 101047359A CN A2006100404617 A CNA2006100404617 A CN A2006100404617A CN 200610040461 A CN200610040461 A CN 200610040461A CN 101047359 A CN101047359 A CN 101047359A
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Abstract
An economizer of electricity consists of input rectification unit, real-time sampling unit, power output unit and SPWM contravariant soft switch control unit. It is featured as regulating frequency and power outputted from power output unit in real time by SPWM contravariant soft switch control unit according to voltage sampled by real-time sampling unit.
Description
Technical field
The present invention relates to a kind of automatic control circuit, refer more particularly to a kind of battery saving arrangement that AC motor system is dynamically controlled in real time.
Background technology
In industrial and agricultural production, extensively adopt alternating current machine to do power, select capacity motor always to come supporting by producing required maximum power, but Man Zai situation seldom in actual use, motor often is in zero load or the underloading and moves, be ubiquity " low load with strong power " phenomenon, cause the significant wastage of electric power.Present alternating current motor energy-conserving product is to realize purpose of power saving by the method that reduces motor speed mostly, and this power saving that brings by reduction of speed can not be satisfied the actual needs of industrial and mineral in a lot of occasions.
Summary of the invention
Technical problem to be solved of the present invention provides a kind of reduction of speed that do not need just can be to automatic induction of the work overall process of three phase alternating current motor and the control battery saving arrangement of adjusting.
For solving the problems of the technologies described above, the technical solution used in the present invention is: intelligent adaptive electric saver, comprise: input rectifying unit, real-time sampling unit, power output unit and the soft switch control unit of SPWM inversion, the soft switch control unit of SPWM inversion according to the real-time sampling unit adopt voltage, current status adjust frequency and the power that the power output unit outputs to three phase alternating current motor in real time.
Above-mentioned sample circuit comprises three voltage sample transformers, three current sample transformers.
Beneficial effect of the present invention: owing to adopted the soft switch control unit of SPWM inversion, sampling unit adopt voltage and current after, control output unit device for power switching cross at voltage " 0 " point open, electric current cross " 0 " point close, thereby reduce the switching loss of power device greatly, reach the purpose of economize on electricity.
Description of drawings
Fig. 1 is an electrical block diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing, but the present invention should not only limit to this embodiment.
As shown in Figure 1, intelligent adaptive electric saver comprises: input rectifying unit 1, the real-time sampling unit 4 that includes three voltage sample transformers and three current sample transformers, the soft switch control unit 2 of power output unit 3 and SPWM inversion, input rectifying unit 1 provides power supply for whole intelligent adaptation node device, the voltage that the soft switch control unit 2 of SPWM inversion is sampled and obtained from three phase alternating current motor by real-time sampling unit 4, current status is adjusted the opportunity that opens and closes to the device for power switching in the power output unit 3 of three phase alternating current motor power supply, it is open-minded to guarantee that power device is crossed " 0 " point at voltage, close and cross " 0 " point, realize the soft switch of power device at electric current.
Claims (2)
1. intelligent adaptive electric saver, comprise: input rectifying unit, real-time sampling unit and power output unit, it is characterized in that: this device also comprises the soft switch control unit of SPWM inversion, the soft switch control unit of SPWM inversion according to the real-time sampling unit adopt voltage, current status adjust frequency and the power that the power output unit outputs to three phase alternating current motor in real time.
2. electricity-saving appliance as claimed in claim 1 is characterized in that: described sample circuit comprises three voltage sample transformers, three current sample transformers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100404617A CN101047359A (en) | 2006-05-19 | 2006-05-19 | Intelligent adaptive electric saver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100404617A CN101047359A (en) | 2006-05-19 | 2006-05-19 | Intelligent adaptive electric saver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101047359A true CN101047359A (en) | 2007-10-03 |
Family
ID=38771654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100404617A Pending CN101047359A (en) | 2006-05-19 | 2006-05-19 | Intelligent adaptive electric saver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101047359A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110337781A (en) * | 2018-01-31 | 2019-10-15 | 三菱电机株式会社 | Capacity selecting apparatus, capacity method for selecting and the capacity selection procedure of motor |
-
2006
- 2006-05-19 CN CNA2006100404617A patent/CN101047359A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110337781A (en) * | 2018-01-31 | 2019-10-15 | 三菱电机株式会社 | Capacity selecting apparatus, capacity method for selecting and the capacity selection procedure of motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20071003 |