CN108832715A - Electric system based on current waveform real-time monitoring - Google Patents
Electric system based on current waveform real-time monitoring Download PDFInfo
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- CN108832715A CN108832715A CN201810613031.2A CN201810613031A CN108832715A CN 108832715 A CN108832715 A CN 108832715A CN 201810613031 A CN201810613031 A CN 201810613031A CN 108832715 A CN108832715 A CN 108832715A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 238000004364 calculation method Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000001939 inductive effect Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 13
- 230000006870 function Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- H02J13/0006—
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- 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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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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
-
- 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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
The invention discloses the electric system based on current waveform real-time monitoring, it is related to power distribution system technology field, solve that there is a certain error by estimating the reactive compensation capacity value that obtains, there are problems that the bring electric energy loss due to estimation error during carrying out reactive compensation, its key points of the technical solution are that：It further include current waveform real-time collector, classification metering module, data statistics module and main control module including power plant, at least one transformer and at least one user side；The current waveform real-time collector and the classification metering module communicate to connect；The classification metering module and the data statistics module communicate to connect；The data statistics module and the main control module communicate to connect；The main control module and the transformer communicate to connect, and there is Accurate Analysis to calculate reactive compensation capacity, improve the effect of power quality.
Description
Technical field
The present invention relates to power distribution system technology fields, more specifically, it relates to the electricity based on current waveform real-time monitoring
Force system.
Background technique
Electric system by power plant, send power transformation route, power supply and distribution and the electrical energy production that forms of the links such as electricity consumption with disappear
Charge system.Its function be the non-renewable energy of nature is converted to electric energy by generation power device, then through transmission of electricity, power transformation and
Distribution supplies power to each user.There is electric energy losses and loss during transmission of electricity, power transformation and distribution etc..The damage of electric energy
Rate reflects power network planning design, the operation of production and the main economic technical indicator of management level.
Electric energy loss in existing electric system mainly has transformer (secondary side), secondary bus load or burden without work below,
Mainly distribution transformer load reactive loss and motor reactive load, account for 80% or more of total load or burden without work.Reactive compensation capacity master
If by calculating, test, tabling look-up determines, generally determined by the 40%~50% of transformer capacity.
But since transformer is block supply, user's lateral load under same transformer is not quite similar, in reactive compensation
During calculation of capacity, by estimating the reactive compensation capacity value obtained, there is a certain error, is carrying out reactive compensation
There is bring electric energy loss due to estimation error in the process, therefore, it is us that how Accurate Analysis, which calculates reactive compensation capacity,
Problem in the urgent need to address at present.
Summary of the invention
The object of the present invention is to provide the electric system based on current waveform real-time monitoring, there is Accurate Analysis to calculate idle
Compensation capacity improves the effect of power quality.
Above-mentioned technical purpose of the invention technical scheme is that：Based on current waveform real-time monitoring
Electric system, including power plant, at least one transformer and at least one user side further include that current waveform acquires in real time
Device, classification metering module, data statistics module and main control module；
The current waveform real-time collector is communicated to connect with the classification metering module, for acquiring the user side
Electrical energy parameter, and the electrical energy parameter is sent to the classification metering module；The electrical energy parameter include electric current, voltage and
Power；
The classification metering module is communicated to connect with the data statistics module, is used for according to the electrical energy parameter to institute
It states user side and carries out load classified calculating, and by the load classified calculating data transmission to the data statistics module；
The data statistics module is communicated to connect with the main control module, for in the affiliated same transformer
It loads classified calculating data and carries out statistic of classification, and the classifiction statistics are sent to the main control module；
The main control module is communicated to connect with the transformer, for calculating the use according to the classifiction statistics
The reactive compensation capacity of family side.
By using above-mentioned technical proposal, using current waveform real-time collector, to the electrical energy parameter of user's lateral load into
Row measurement reduces convenient for carrying out electricity consumption category classification after accurately calculating to user's lateral load and carries out idle function to electric system
The error of rate compensation, improves power quality.
The present invention is further arranged to：The load classified calculating includes single-phase resistive load calculating, single-phase inductive load
It calculates, three-phase resistive load calculates and three-phase inductive load calculates；
The calculation formula that the single-phase resistive load calculates is：I=P/U；
The calculation formula that the single-phase inductive load calculates is：I=P/0.8U；
The calculation formula that the three-phase resistive load calculates is：I=P/1.732U；
The calculation formula that the three-phase inductive load calculates is：I=P/ (1.732 × 0.8U)；
Wherein, I is electric current, and P is power, and U is voltage.
By using above-mentioned technical proposal, convenient for carrying out resistive and perceptual classification to user's lateral load.
The present invention is further arranged to：The main control module and the power plant communicate to connect, for according to the classification
Statistical data controls the power plant to the power Transmission of the transformer.
It by using above-mentioned technical proposal, is communicated to connect using main control module and power plant, convenient for regulating and controlling power plant to change
The electric energy of depressor conveying, so that the electric energy in power plant more reasonable distribution.
The present invention is further arranged to：The data statistics module communication link is connected to harmonic wave statistical module, the harmonic wave system
It counts module and the main control module communicates to connect.
By using above-mentioned technical proposal, reduced using harmonic wave statistical module convenient for the electric energy harmonic wave of monitoring user-side
The device for eliminating harmonic in power plant.
The present invention is further arranged to：The data statistics module communicates to connect power factor metering module, the function
Rate factor metering module and the main control module communicate to connect.
By using above-mentioned technical proposal, measure module using power factor, be conveniently adjusted the power of power plant transmission of electricity because
Number, improves the rate of qualified voltage of transformer-supplied, improves the maximum efficiency of electric energy.
In conclusion the invention has the advantages that：Using current waveform real-time collector, to user's lateral load
Electrical energy parameter measures, and convenient for carrying out electricity consumption category classification after accurately calculating to user's lateral load, reduces to electric system
The error for carrying out reactive power compensation, improves power quality；It is humorous convenient for the electric energy of monitoring user-side using harmonic wave statistical module
Wave reduces the device for eliminating harmonic in power plant；Module is measured using power factor, is conveniently adjusted the power factor of power plant transmission of electricity,
The rate of qualified voltage for improving transformer-supplied improves the maximum efficiency of electric energy.
Detailed description of the invention
Fig. 1 is the block architecture diagram in embodiment；
In figure：1, power plant；11, transformer；12, user side；13, current waveform real-time collector；14, classification metering mould
Block；15, data statistics module；16, harmonic wave statistical module；17, main control module；18, power factor measures module.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment：Based on the electric system of current waveform real-time monitoring, as shown in Figure 1, including power plant 1, transformer 11
With user side 12, power plant 1 is provided at least one transformer 11, each transformer 11 is correspondingly arranged at least one user
Side 12.It further include current waveform real-time collector 13, classification metering module 14, data statistics module 15 and main control module 17.Electricity
It flows waveform real-time collector 13 and classification metering module 14 communicates to connect, for acquiring the electrical energy parameter of user side 12, and will be electric
Energy parameter is sent to classification metering module 14, and electrical energy parameter includes but is not limited to electric current, voltage and power.Classification metering module 14
It is communicated to connect with data statistics module 15, for carrying out load classified calculating to user side 12 according to electrical energy parameter, and will load
Classified calculating data transmission is to data statistics module 15.Data statistics module 15 and main control module 17 communicate to connect, for institute
The load classified calculating data belonged in same transformer 11 carry out statistic of classification, and classifiction statistics are sent to main control module
17.Main control module 17 and transformer 11 communicate to connect, and the reactive compensation for calculating user side 12 according to classifiction statistics is held
Amount.Using current waveform real-time collector 13, the electrical energy parameter loaded to user side 12 is measured, convenient for negative to user side 12
Load carries out electricity consumption category classification after accurately calculating, and reduces the error for carrying out reactive power compensation to electric system, improves electricity
It can quality.
As shown in Figure 1, load classified calculating includes that single-phase resistive load calculates, single-phase inductive load calculates, three-phase is resistive
Load calculates and three-phase inductive load calculates.The calculation formula that single-phase resistive load calculates is：I=P/U.Single-phase inductive load meter
The calculation formula of calculation is：I=P/0.8U.Three-phase resistive load calculate calculation formula be：I=P/1.732U.Three-phase perception is negative
Carrying the calculation formula calculated is：I=P/ (1.732 × 0.8U).Wherein, I is electric current, and P is power, and U is voltage.Convenient for user
The load of side 12 carries out resistive and perceptual classification.
As shown in Figure 1, main control module 17 and power plant 1 communicate to connect, for controlling power plant 1 according to classifiction statistics
To the power Transmission of transformer 11.Convenient for the electric energy that regulation power plant 1 is conveyed to transformer 11, so that the electric energy in power plant 1 is more
Add reasonable distribution.
As shown in Figure 1,15 communication link of data statistics module is connected to harmonic wave statistical module 16, harmonic wave statistical module 16 and master control
Module 17 communicates to connect.Reduce power plant 1 using harmonic wave statistical module 16 convenient for the electric energy harmonic wave of monitoring user-side 12
Device for eliminating harmonic.
As shown in Figure 1, data statistics module 15 communicates to connect power factor metering module 18, power factor measures module
18 communicate to connect with main control module 17.Module 18 is measured using power factor, is conveniently adjusted the power factor of the transmission of electricity of power plant 1,
The rate of qualified voltage for improving the power supply of transformer 11, improves the maximum efficiency of electric energy.
Working principle：Using current waveform real-time collector 13, the electrical energy parameter loaded to user side 12 is measured, just
Electricity consumption category classification is carried out after accurately calculating to the load of user side 12, reduces and reactive power compensation is carried out to electric system
Error improves power quality.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (5)
1. based on the electric system of current waveform real-time monitoring, including power plant (1), at least one transformer (11) and at least one
A user side (12), it is characterized in that：It further include current waveform real-time collector (13), classification metering module (14), data statistics
Module (15) and main control module (17)；
The current waveform real-time collector (13) communicates to connect with the classification metering module (14), for acquiring the use
The electrical energy parameter of family side (12), and the electrical energy parameter is sent to the classification metering module (14)；The electrical energy parameter packet
Include electric current, voltage and power；
The classification metering module (14) communicates to connect with the data statistics module (15), for according to the electrical energy parameter
Load classified calculating carried out to the user side (12), and by the load classified calculating data transmission to the data statistics mould
Block (15)；
The data statistics module (15) communicates to connect with the main control module (17), for the affiliated same transformer
(11) the load classified calculating data in carry out statistic of classification, and the classifiction statistics are sent to the main control module
(17)；
The main control module (17) communicates to connect with the transformer (11), for calculating institute according to the classifiction statistics
State the reactive compensation capacity of user side (12).
2. the electric system according to claim 1 based on current waveform real-time monitoring, it is characterized in that：The load classification
Calculate includes that single-phase resistive load calculates, single-phase inductive load calculates, three-phase resistive load calculates and three-phase inductive load calculates；
The calculation formula that the single-phase resistive load calculates is：I=P/U；
The calculation formula that the single-phase inductive load calculates is：I=P/0.8U；
The calculation formula that the three-phase resistive load calculates is：I=P/1.732U；
The calculation formula that the three-phase inductive load calculates is：I=P/ (1.732 × 0.8U)；
Wherein, I is electric current, and P is power, and U is voltage.
3. the electric system according to claim 1 based on current waveform real-time monitoring, it is characterized in that：The main control module
(17) it is communicated to connect with the power plant (1), for controlling the power plant (1) to the change according to the classifiction statistics
The power Transmission of depressor (11).
4. the electric system according to claim 1 based on current waveform real-time monitoring, it is characterized in that：The data statistics
Module (15) communication link is connected to harmonic wave statistical module (16), and the harmonic wave statistical module (16) communicates with the main control module (17)
Connection.
5. the electric system according to claim 1 based on current waveform real-time monitoring, it is characterized in that：The data statistics
Module (15) communicates to connect power factor metering module (18), power factor metering module (18) and the main control module
(17) it communicates to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810613031.2A CN108832715A (en) | 2018-06-14 | 2018-06-14 | Electric system based on current waveform real-time monitoring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810613031.2A CN108832715A (en) | 2018-06-14 | 2018-06-14 | Electric system based on current waveform real-time monitoring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344989A (en) * | 2019-07-09 | 2019-10-18 | 武汉四创自动控制技术有限责任公司 | A kind of waterpower multicomputer generated output regulation method and apparatus |
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| JPH0843459A (en) * | 1994-08-04 | 1996-02-16 | Mitsubishi Denki Bill Techno Service Kk | High-harmonic content monitoring device |
| EP0707216A2 (en) * | 1994-10-13 | 1996-04-17 | GENERAL ELECTRONIK GMbH bei MAGDEBURG | Method and clip-on current probe for determining the compensation capacity of an electrical network |
| CN102931659A (en) * | 2012-11-27 | 2013-02-13 | 重庆大学 | Capacitive switching control method for inhibiting zero sequence and negative sequence current of distribution transformer |
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Application publication date: 20181116 |