CN102025147A - Self-adaptive low-voltage power saving system - Google Patents
Self-adaptive low-voltage power saving system Download PDFInfo
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- CN102025147A CN102025147A CN2009101732275A CN200910173227A CN102025147A CN 102025147 A CN102025147 A CN 102025147A CN 2009101732275 A CN2009101732275 A CN 2009101732275A CN 200910173227 A CN200910173227 A CN 200910173227A CN 102025147 A CN102025147 A CN 102025147A
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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
- Y02E40/30—Reactive power compensation
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Abstract
The invention relates to a system for automatically recognizing and regulating the power utilization parameter of a power grid. A method of the system comprises the following steps of: detecting the parameter of the power grid; performing numerical statement; analyzing the specific power utilization situation of the power grid; and regulating the parameter of the power grid in real time. In the process of regulating the parameter of the power grid in real time, the parameter of the entire power supply power grid is detected and counted, the voltage of the power grid is controlled not to get too high or too low in real time through analysis and a reactive power compensator is regulated according to a power factor, so that a capacitor group is put into use and switched off automatically and the power factor is changed between 0.95 and 0.99. The power of power utilization equipment is regulated in real time according to the load situation of the power utilization equipment and the power supply of the power utilization equipment is switched off when the equipment is not required to be switched on, so that waste of electric energy is avoided. The power utilization parameter of the power grid is recognized and regulated automatically, so that the power supply quality can be enhanced, the electric energy is saved and power saving rate is generally between 8 and 20 percent on average.
Description
Affiliated technical field
The present invention is a kind of system that can discern and adjust the electrical network power consumption parameter automatically.
Background technology
At present, low pressure electricity-saving appliance great majority on the market are to adopt pressure regulation and reactive power compensation technology, but such voltage regulator and reactive-load compensator are by the manual or fixing mode operation of step-down mostly, the power supply quality of electrical network is reduced, manually step-down or voltage stabilizing do not adapt to the variation of line voltage complexity, and the lumped capacitance compensation can not improve the power factor of low-voltage distribution electrical network.System of the present invention adopts the detection of multistage deploy to ensure effective monitoring and control of illegal activities mode and a plurality of node electrical network parameters, can adjust electrical network parameter from the variation of motion tracking network load, improves energy utilization rate.
Summary of the invention
In order to utilize the existing energy fully, system of the present invention provides a kind of system that can discern and adjust the electrical network power consumption parameter automatically.
The technical scheme of the inventive method is:
A kind of system that can discern and adjust the electrical network power consumption parameter automatically, its step comprises:
(1) detection of grid magnitude of voltage, current value, active power, reactive power, percent harmonic and the power factor of node of deploying to ensure effective monitoring and control of illegal activities:
(2) the statistics electrical network situation of change of current value, active power, reactive power, percent harmonic and power factor of node of deploying to ensure effective monitoring and control of illegal activities;
(3) the electricity consumption situation of the whole electrical network of analysis;
(4) adjust each power supply parameter of electrical network in real time;
Described electrical network deploy to ensure effective monitoring and control of illegal activities node be according to site specific the illumination total loop, power total loop and other concrete detection and the control of carrying out overall power consumption parameter with the electric loading total loop.
Described electrical network deploy to ensure effective monitoring and control of illegal activities node be according to site specific contrast end of the Ming Dynasty end, power is terminal and other power consumption equipment end carries out that output loading detects and control.
The electricity consumption situation of the whole electrical network of described analysis is that the magnitude of voltage, current value, active power, reactive power, percent harmonic and the power factor analysis that come out are gathered, and draws the mean value of whole mains supply parameter and power consumption equipment output load.
The real power supply parameter of adjusting is to adjust magnitude of voltage, filtering high order harmonic component, carry out reactive power compensation and adjustment power output automatically according to the value that whole mains supply situation analysis is come out when described, improves front end and terminal parameters such as power factor.
The technical scheme of system of the present invention is:
A kind of system that can discern and adjust the electrical network power consumption parameter automatically is characterized in that comprising:
Voltage regulator, it regulates line voltage.
Reactor, the harmonic wave of its filtering electrical network.
Reactive-load compensator, its compensation network reactive power improves power factor.
The current/voltage transducer, it measures the parameters such as electric current, voltage, power factor and percent harmonic of electrical network.
Other transducer, it measures the output loading of power consumption equipment.
Computer system, it adds up the concrete condition of on-the-spot electrical network, and on-the-spot electrical network parameter is controlled in real time.
Described on-the-spot electrical network parameter is controlled in real time is to adjust magnitude of voltage, filtering high order harmonic component, carry out reactive power compensation and adjustment power output automatically according to the value that whole mains supply situation analysis is come out, and improves front end and terminal parameters such as power factor.
The output loading of described measurement power consumption equipment is to select different transducers to come the output situation of detection equipment according to field condition.
By automatic identification and adjustment electrical network power consumption parameter, power supply quality can be provided and save electric energy, the power saving rate average is between 8%～20%.
Fig. 1 is a method flow diagram of the present invention;
Fig. 2 is a system configuration schematic diagram of the present invention;
Embodiment
Referring to Fig. 1 and Fig. 2, below the invention will be further described, and the particular content of its major part is as follows:
The detection of grid parameter:
For power supply grid and right, its voltage, electric current, power factor, percent harmonic are constantly to change, system of the present invention is by current sensor and voltage sensor senses ac grid voltage electric current instantaneous parameters, the data that detect are carried out Fourier transformation operation, can calculate for the first time the effective value of the 99 voltage and current waveform, with the first time waveform serve as that the basis all is a harmonic wave for the second time.The data of coming out by the current/voltage transducer just can draw active power and reactive power and power factor.
The detection of power consumption equipment output loading:
Install detecting sensor additional behind each main equipment, by the output of detection equipment, the concrete condition of statistics power consumption equipment load is regulated the power of power consumption equipment, even can cut off power consumption equipment to save electric energy when power consumption equipment there is no need out.
Adjust each power supply parameter of electrical network in real time:
Detection and the parameter of adding up the whole power supply grid that draws by the front, controlling line voltage in real time by analysis does not allow voltage higher or on the low side, regulate reactive-load compensator according to power factor, its capacitance group is dropped into and excision automatically, allow power factor between 0.95 and 0.99, change.Loading condition according to the statistics power consumption equipment is adjusted the power of power consumption equipment in real time, and the power supply that disconnects power consumption equipment in the unnecessary unlatching of equipment is in order to avoid the waste electric energy.
By automatic identification and adjustment electrical network power consumption parameter, can improve power supply quality and save electric energy, the power saving rate average is between 8%～20%.
Claims (5)
1. the system that can discern and adjust the electrical network power consumption parameter automatically comprises the following steps:
(1) detection of grid magnitude of voltage, current value, active power, reactive power, percent harmonic and the power factor of node of deploying to ensure effective monitoring and control of illegal activities;
(2) the statistics electrical network situation of change of current value, active power, reactive power, percent harmonic and power factor of node of deploying to ensure effective monitoring and control of illegal activities;
(3) the electricity consumption situation of the whole electrical network of analysis;
(4) adjust each power supply parameter of electrical network in real time;
It is characterized in that:
Adjusting in each power supply parameter process of electrical network in real time,, adjust the parameter of electrical network in real time by the electrical network parameter that detects and add up.
2. electrical network as claimed in claim 1 deploy to ensure effective monitoring and control of illegal activities node be according to site specific the illumination total loop, power total loop and other concrete detection and the control of carrying out overall power consumption parameter with the electric loading total loop.
3. electrical network as claimed in claim 1 deploy to ensure effective monitoring and control of illegal activities node be according to site specific contrast end of the Ming Dynasty end, power is terminal and other power consumption equipment end carries out that output loading detects and control.
4. the electricity consumption situation of the whole electrical network of analysis as claimed in claim 1 is that the magnitude of voltage, current value, active power, reactive power, percent harmonic and the power factor analysis that come out are gathered, and draws the mean value of whole mains supply parameter and power consumption equipment output load.
5. the real power supply parameter of adjusting is to adjust magnitude of voltage, filtering high order harmonic component, carry out reactive power compensation and adjustment power output automatically according to the value that whole mains supply situation analysis is come out when as claimed in claim 1, improves front end and terminal parameters such as power factor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101732275A CN102025147A (en) | 2009-09-11 | 2009-09-11 | Self-adaptive low-voltage power saving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101732275A CN102025147A (en) | 2009-09-11 | 2009-09-11 | Self-adaptive low-voltage power saving system |
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| Publication Number | Publication Date |
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| CN102025147A true CN102025147A (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101732275A Pending CN102025147A (en) | 2009-09-11 | 2009-09-11 | Self-adaptive low-voltage power saving system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332435A (en) * | 2020-10-28 | 2021-02-05 | 蜂巢能源科技有限公司 | Energy storage system, method, energy management system and power system |
| CN113852143A (en) * | 2020-06-28 | 2021-12-28 | 北京小米移动软件有限公司 | Electric energy management method and device and storage medium |
-
2009
- 2009-09-11 CN CN2009101732275A patent/CN102025147A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113852143A (en) * | 2020-06-28 | 2021-12-28 | 北京小米移动软件有限公司 | Electric energy management method and device and storage medium |
| CN112332435A (en) * | 2020-10-28 | 2021-02-05 | 蜂巢能源科技有限公司 | Energy storage system, method, energy management system and power system |
| CN112332435B (en) * | 2020-10-28 | 2022-05-17 | 蜂巢能源科技股份有限公司 | Energy storage system, method, energy management system and power system |
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Application publication date: 20110420 |