CN106786532B - Intelligent power optimizing distributor - Google Patents
Intelligent power optimizing distributor Download PDFInfo
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- CN106786532B CN106786532B CN201611225364.5A CN201611225364A CN106786532B CN 106786532 B CN106786532 B CN 106786532B CN 201611225364 A CN201611225364 A CN 201611225364A CN 106786532 B CN106786532 B CN 106786532B
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- 238000009826 distribution Methods 0.000 claims abstract description 21
- 230000001939 inductive effect Effects 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims description 4
- 238000005457 optimization Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
Abstract
The invention discloses an intelligent power optimizing distributor, which is characterized by comprising a rectifying device, an analog electric wave device and a plurality of power distributing ends which are sequentially connected, wherein the rectifying device is connected with an external power grid and is used for converting alternating current voltage input from the power grid into direct current voltage; the analog electric wave device is used for converting the direct-current voltage into alternating-current voltages with different frequencies in an analog mode; each power distribution end is respectively connected with different external electric equipment and is used for outputting alternating voltage with required frequency to the external electric equipment. The intelligent power optimizing distributor has the advantages that the intelligent power optimizing distributor is simple in structure, different frequencies of 380V/AC three-phase alternating current voltage are simulated through the analog electric wave device and distributed in different electric equipment on site through the power distributing ends, so that power optimization is achieved, and the energy saving effect is between 10% and 30%.
Description
Technical Field
The invention belongs to the technical field of power saving control, and particularly relates to an intelligent power optimizing distributor.
Background
Frequency is a parameter describing the periodic phenomenon and represents the ratio of the number of complete cycles to the time required. In the international system of units, the frequency is in hertz and the symbol is Hz, which represents the number of cycles the periodic function completes in 1 s. At present, all countries of the world adopt sinusoidal alternating current, the frequency used is mainly 50Hz and 60Hz, and the national standard of China prescribes that the standard frequency of single-phase and three-phase alternating current power systems is 50Hz.
In practical application, for example, in a factory workshop, electrical equipment such as a lighting lamp, a motor, a lathe, a water pump and the like is installed, and current frequencies actually required by different electrical equipment are different, but because the frequencies regulated by national standards are 50Hz, the electrical equipment with the actually required frequency lower than 50Hz consumes redundant power in the working process, so that electric energy is wasted.
For example, in order to ensure the reliability of production, a certain margin is reserved when the water pump is designed and matched with power driving, and when the water pump motor cannot run under full load, the power driving requirement is met, the redundant moment increases the consumption of active power, and the waste of electric energy is caused.
Disclosure of Invention
According to the defects of the prior art, the invention provides the intelligent power optimizing distributor, which adopts the rectifying device and the analog electric wave device to convert the input fixed-frequency alternating voltage into the alternating voltage with the required frequency and respectively output the alternating voltage to each power distribution end correspondingly connected with different electric equipment.
The invention is realized by the following technical scheme:
the intelligent power optimizing distributor is characterized by comprising a rectifying device, an analog electric wave device and a plurality of power distributing ends which are sequentially connected, wherein the rectifying device is connected with an external power grid and is used for converting alternating current voltage input from the power grid into direct current voltage; the analog electric wave device is used for converting the direct-current voltage into alternating-current voltages with different frequencies in an analog mode; each power distribution end is respectively connected with different external electric equipment and is used for outputting alternating voltage with required frequency to the external electric equipment.
The analog electric wave device comprises an IGBT module, a PWM module and an EMF module, wherein the PWM module and the EMF module are respectively connected with the IGBT module.
The analog electric wave device further comprises a control host, and the control host is respectively connected with the IGBT module, the PWM module and the EMF module.
The external electric equipment connected with each power distribution end can be a lighting device, an electric heating device, a motor, an inductive load, a capacitive load and a rectifying element.
The rectifying device and the analog electric wave device are packaged in a box body, and the electric power distribution ends are distributed on the surface of the box body.
The intelligent power optimization distributor has the advantages that (1) the intelligent power optimization distributor is simple in structure, and can meet the voltage frequency requirements of different electric equipment; (2) 380-410V/AC stably input by a power grid is converted into direct current through a rectifying device, so that the stability of input voltage and current is improved, and the stability control means of direct current power is simpler and more convenient than that of alternating current power; (3) The high-frequency current switching of the direct-current voltage is realized through the optimized matching of the PWM module and the IGBT module to form pulse voltage, the reverse current is obtained through the EMF module by EMF induced electromotive force, the reverse current is superposed on the pulse voltage, and the analog-converted alternating-current voltage is obtained through the output frequency; (4) Different frequencies of 380V/AC three-phase alternating current voltage are simulated and distributed in different electric equipment on site through a plurality of power distribution ends, so that power optimization is achieved, and the energy-saving effect is between 10% and 30%.
Drawings
FIG. 1 is a schematic diagram of a power intelligent optimization distributor according to the present invention;
FIG. 2 is a schematic diagram of a system for simulating an electric wave device in accordance with the present invention;
FIG. 3 is a schematic diagram of the main pulse voltage formed by the IGBT module and the PWM module according to the present invention;
FIG. 4 is a schematic diagram of the reverse pulse voltage generated by the EMF module of the present invention;
fig. 5 is a schematic diagram of ac voltages with different frequencies simulated by the analog electric wave device according to the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings, to facilitate understanding by those skilled in the art:
as shown in fig. 1-5, reference numerals 1-15 are respectively: a transformer substation 1, a rectifying device 2, an analog electric wave device 3, a power distribution terminal 4, a power optimization distributor 5, a lighting device 6, an electric heating device 7, a motor 8, an inductive load 9, a capacitive load 10, a rectifying element 11, a PWM module 12, an IGBT module 13, an EMF module 14, and a control host 15.
Examples: as shown in fig. 1 and 2, this embodiment specifically relates to an intelligent power optimization distributor, which includes a rectifying device 2, an analog electric wave device 3 and a plurality of power distribution terminals 4 that are sequentially connected, wherein each device is packaged in a box body, and the two devices are as follows: the rectifying device 2 is used as an input end of the intelligent power optimizing distributor 5 to be connected with an external power grid and is used for converting alternating current input from the power grid into direct current; the analog wave device 3 converts the direct current input from the rectifying device 2 into analog frequency, and outputs the converted direct current to each power distribution terminal 4 again as alternating current.
As shown in fig. 2, the analog electric wave device 3 in the present embodiment is composed of a PWM module 12, an IGBT module 13, an EMF module 14, and a control host 15, wherein the control host 15 is configured to set a frequency value of the analog required for outputting the alternating current at each power distribution terminal 4, the PWM module 12 is configured to send out a corresponding PWM control signal according to the setting information on the control host 15 (i.e., the frequency value of the analog required for outputting the alternating current), and the IGBT module 13 performs high-frequency current switching on the direct current input from the rectifying device 2 according to the PWM control signal, so as to obtain a pulse voltage; EMF is used to generate a corresponding back pulse voltage by inducing an electromotive force EMF.
As shown in fig. 1, the power distribution terminals 4 in this embodiment can output voltages with different frequencies, and specifically can be connected to and supply power to the lighting device 6, the electrothermal device 7, the motor 8, the inductive load 9, the capacitive load 10, the rectifying element 11, and the like.
As shown in fig. 1 to 5, the working method of the intelligent power optimizing distributor 5 in this embodiment specifically includes the following steps:
(1) As shown in fig. 1, the power intelligent optimization distributor 5 is installed in a building plant and connected to an external power grid.
(2) As shown in figure 1, after passing through the transformer substation 1, the external power grid high-voltage power is converted into industrial power, namely 380V/AC with the standard frequency of 50Hz, but in the actual process, a certain floating interval exists in the voltage, so that the voltage input into the intelligent power optimizing distributor 5 in the building factory is 380-410V/AC.
(3) As shown in fig. 1, 380-410V/AC in the intelligent optimization distributor 5 for input power from the power grid is firstly converted into 540-600V/DC under the rectification of the rectifying device 2, and the input voltage and current stability is improved by converting the DC into direct current.
(4) As shown in fig. 1 and 2, after the conversion to 540-600V/DC, the direct current voltage enters the analog electric wave device 3, firstly, the control host 15 sets the frequency value of the analog required by the alternating current output by each power distribution terminal 4, the PWM module 12 sends out the corresponding PWM control signal according to the frequency value of the analog required by the alternating current output, and the IGBT module 13 switches the input 540-600V/DC to high frequency current according to the PWM control signal to form the main pulse voltage shown in fig. 3; the EMF module 14 then generates a corresponding reverse current from the induced electromotive force EMF according to the frequency value of the analog required for outputting the alternating current and the resulting main pulse voltage to obtain a reverse pulse voltage as shown in fig. 4; superimposing the reverse pulse voltage shown in fig. 4 on the main pulse voltage shown in fig. 3; when the return potential is switched, the input alternating current is rectified into direct current, the IGBT high-frequency switch in the IGBT module 13 is used for controlling current and simultaneously switching out main pulse voltage (PWM), the stability of the voltage is ensured by the reversed phase potential (EMF), the square wave frequency modulation of the direct current is simulated into linear alternating voltage 380V/AC through the micro-single chip of the preset program, the frequency simulation values can be 30Hz, 40Hz, 70 Hz and the like, namely, the frequency simulation values can be larger than the standard frequency or smaller than the standard frequency, and the range of the AC V voltage and the I current required by the terminal electric appliance group is considered.
(5) As shown in fig. 1, 2 and 5, after 380V/AC alternating current output by the analog electric wave device 3 reaches a frequency value required to be simulated, the 380V/AC alternating current is respectively and correspondingly output to each power distribution end 4, and the frequencies of alternating voltages output by the power distribution ends 4 are different, so that different power applications are satisfied; as shown in fig. 1, the power distribution system 5 in the present embodiment has six power distribution terminals 4, and the frequencies output by the power distribution terminals 4 are respectively suitable for the power application scenario shown in the figure, that is, the lighting device 6, the electric heating device 7, the motor 8, the inductive load 9, the capacitive load 10, and the rectifying element 11.
In this embodiment, the industrial power input from the power grid may be 220V/AC, 50Hz, or other national power standards, such as 120V/AC single-phase voltage and 60Hz frequency.
The method has the beneficial effects that 380V three-phase alternating voltage and current with different frequencies are simulated and output to different electric equipment in a building factory through each electric power distribution end, so that electric energy is optimized, and electric power consumption can be saved by 10% -30%.
Claims (4)
1. The intelligent power optimizing distributor is characterized by comprising a rectifying device, an analog electric wave device and a plurality of power distributing ends which are sequentially connected, wherein the rectifying device is connected with an external power grid and is used for converting alternating current voltage input from the power grid into direct current voltage; the analog electric wave device is used for converting the direct-current voltage into alternating-current voltages with different frequencies in an analog mode; each power distribution end is respectively connected with different external electric equipment and is used for outputting alternating voltage with required frequency to the external electric equipment;
the analog electric wave device comprises an IGBT module, a PWM module and an EMF module, wherein the PWM module and the EMF module are respectively connected with the IGBT module;
the rectifying device is utilized to convert 380-410V of alternating voltage with standard frequency input from a power grid into 540-600V of direct voltage; the analog electric wave device is utilized to convert 540-600V of the converted direct current voltage into 380V of alternating current voltage with different frequency analog, and the 380V of alternating current voltage is output to each electric power distribution end respectively; each external electric equipment in the building is respectively connected with the electric power distribution end with corresponding frequency; the PWM module simulates and sends out corresponding PWM control signals according to the frequency of 380V of alternating voltage to be simulated, and the IGBT module switches the input direct voltage of 540-600V into high-frequency current according to the PWM control signals so as to form main pulse voltage; the EMF module generates corresponding reverse current according to the formed main pulse voltage and induced electromotive force EMF to obtain reverse pulse voltage, and the reverse pulse voltage and the main pulse voltage are overlapped to act, so that the alternating current voltage 380V with the required frequency simulation is obtained through simulation.
2. The intelligent power optimizing distributor according to claim 1, wherein the analog electric wave device further comprises a control host, and the control host is respectively connected with the IGBT module, the PWM module, and the EMF module.
3. The intelligent power optimizing distributor according to claim 1, wherein the external electric equipment connected to each power distributing end is one or more of a lighting device, an electric heating device, a motor, an inductive load, a capacitive load and a rectifying element.
4. The intelligent power optimizing distributor according to claim 1, wherein the rectifying device and the analog wave device are packaged in a box, and the power distributing ends are distributed on the surface of the box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225364.5A CN106786532B (en) | 2016-12-27 | 2016-12-27 | Intelligent power optimizing distributor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225364.5A CN106786532B (en) | 2016-12-27 | 2016-12-27 | Intelligent power optimizing distributor |
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| CN106786532A CN106786532A (en) | 2017-05-31 |
| CN106786532B true CN106786532B (en) | 2023-11-14 |
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| CN106786532A (en) | 2017-05-31 |
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