CN106253282A - A kind of harmonic management method and a kind of network system - Google Patents
A kind of harmonic management method and a kind of network system Download PDFInfo
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- CN106253282A CN106253282A CN201610793869.5A CN201610793869A CN106253282A CN 106253282 A CN106253282 A CN 106253282A CN 201610793869 A CN201610793869 A CN 201610793869A CN 106253282 A CN106253282 A CN 106253282A
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- Prior art keywords
- electric parameter
- harmonic
- acquisition module
- grid branch
- network system
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Classifications
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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
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- 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
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
-
- 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
- Y02E40/40—Arrangements for reducing harmonics
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides a kind of harmonic management method and a kind of network system, the method is applied to network system, network system includes the grid branch that electrical network main road and a plurality of and described electrical network main road are connected, harmonic management device it is provided with in every grid branch, harmonic management device includes electric parameter acquisition module and harmonic management module, and the outfan of electric parameter acquisition module electrically connects with the Enable Pin of harmonic management module.The method gathers the electric parameter information in grid branch by electric parameter acquisition module, and judge that grid branch is the need of harmonic wave control, if grid branch needs harmonic wave control, harmonic management module, after receiving the harmonic wave control signal that electric parameter acquisition module sends, carries out harmonic wave control to grid branch.The method can solve conventional harmonic administering method it cannot be guaranteed that the problem proved effective completely in every grid branch, meanwhile, and the burden that electrical network is produced when can reduce harmonic wave control by the method.
Description
Technical field
The present invention relates to electric power network technique field, in particular to a kind of harmonic management method and a kind of network system.
Background technology
The electricity such as the television set in the electrical equipment such as thyristor circuit in electrical network and power converter plant and household electrical appliance
Device, all can produce harmonic current injection electrical network so that the voltage current waveform of electrical network is distorted, the quality of power supply deteriorates.When humorous
Although ripple electric current is little beyond code permissible value or harmonic current, but when electrical equipment is interfered, electric power all can be made to set
Standby loss increases.The method of traditional harmonic wave control is to the harmonic source equipment centrally connected power supply Concetrated control in electrical network, but on
The method of stating does not ensures that proves effective in every grid branch completely, still can often damage electrical equipment.
Summary of the invention
It is an object of the invention to provide harmonic management method and a kind of network system, the method can solve to use and pass
During the harmonic wave management method united, it is impossible to ensureing the problem proved effective completely in every grid branch, meanwhile, the method can reduce humorous
Burden when ripple is administered, electrical network produced.
First aspect, embodiments provides a kind of harmonic management method, is applied to network system, described electrical network system
System includes the grid branch that electrical network main road and a plurality of and described electrical network main road are connected, and every described grid branch is provided with humorous
Ripple processing means, described harmonic management device includes electric parameter acquisition module and harmonic management module, described electric parameter collection
The outfan of module electrically connects with the Enable Pin of described harmonic management module；Described method includes: described electric parameter acquisition module
Gather the electric parameter information in described grid branch, and judge that described grid branch is the need of harmonic wave control；At described harmonic wave
Reason module, after receiving the harmonic wave control signal that described electric parameter acquisition module sends, carries out harmonic wave to described grid branch and controls
Reason.
In preferred embodiment of the present invention, described electric parameter acquisition module includes electric parameter harvester and controller；
Described electric parameter acquisition module gathers the electric parameter information in described grid branch, and judges that described grid branch is the need of humorous
Ripple is administered, including: described electric parameter harvester gathers the electric parameter information in described grid branch, and described electric parameter information
It is sent to described controller；After described controller receives described electric parameter information, by described electric parameter information with prestore
Presupposed information mate；If described electric parameter information is with described presupposed information, the match is successful, and described controller is to described humorous
Ripple processing module sends harmonic wave control signal.
In preferred embodiment of the present invention, described presupposed information is a value range having higher limit and lower limit.
Second aspect, embodiments provides a kind of network system, described network system include electrical network main road and
The grid branch that a plurality of and described electrical network main road is connected, every described grid branch is provided with harmonic management device, described humorous
Ripple processing means includes electric parameter acquisition module and harmonic management module, and the outfan of described electric parameter acquisition module is with described
The Enable Pin electrical connection of harmonic management module.
In preferred embodiment of the present invention, described electric parameter acquisition module includes electric parameter harvester and controller；
The outfan of described electric parameter harvester electrically connects with the input of described controller, and the outfan of described controller is humorous with described
The Enable Pin electrical connection of ripple processing module.
In preferred embodiment of the present invention, described harmonic management module includes enabling switch, reactor and capacitor, institute
The input stating enable switch electrically connects with the outfan of described electric parameter acquisition module, the described outfan enabling switch and institute
Stating the input electrical connection of reactor, described reactor is connected with described capacitor and is formed LC series loop.
In preferred embodiment of the present invention, described enable switch is relay.
In preferred embodiment of the present invention, described enable switch is audion.
In preferred embodiment of the present invention, described harmonic management device also includes reactive compensation module, described idle benefit
The outfan of the Enable Pin and described electric parameter acquisition module of repaying module electrically connects, and described reactive compensation module is for described electricity
Terminal in net branch road carries out reactive-load compensation.
In preferred embodiment of the present invention, described reactive compensation module include reactive-load compensation enable switch and multiple also
The reactive-load compensation capacitor of connection, described reactive-load compensation enables the input of switch and the outfan electricity of described electric parameter acquisition module
Connecting, the described outfan enabling switch electrically connects with the reactive-load compensation capacitor of the plurality of parallel connection.
The embodiment of the present invention provides the benefit that: the invention provides a kind of harmonic management method and a kind of electrical network system
System, the method gathers the electric parameter information in grid branch by electric parameter acquisition module, and whether judges described grid branch
After needing harmonic wave control, if described grid branch needs harmonic wave control, send harmonic wave control information to described harmonic management module；
Described harmonic management module, after receiving harmonic wave control signal, carries out harmonic wave control to described grid branch.The method can solve
Certainly conventional harmonic administering method is it cannot be guaranteed that the problem proved effective completely in every grid branch, and meanwhile, the method can reduce humorous
Burden when ripple is administered, electrical network produced.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by embodiment required use attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other relevant accompanying drawings.
The structural representation of the network system that Fig. 1 provides for first embodiment of the invention；
The structured flowchart of the harmonic management device that Fig. 2 provides for first embodiment of the invention；
The structured flowchart of the electric parameter acquisition module that Fig. 3 provides for first embodiment of the invention；
The structured flowchart of the harmonic management module that Fig. 4 provides for first embodiment of the invention；
The structured flowchart of the reactive compensation module that Fig. 5 provides for first embodiment of the invention；
The flow chart of a kind of harmonic wave management method that Fig. 6 provides for second embodiment of the invention；
The flow chart of the another kind of harmonic wave management method that Fig. 7 provides for second embodiment of the invention.
Icon: 100-network system；200-harmonic management device；210-electric parameter acquisition module；211-
Electric parameter harvester；212-controller；220-harmonic management module；230-reactive compensation module.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Generally implement with the present invention illustrated described in accompanying drawing herein
The assembly of example can be arranged with various different configurations and design.
Therefore, detailed description to the embodiments of the invention provided in the accompanying drawings is not intended to limit claimed below
The scope of the present invention, but be merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into the model of present invention protection
Enclose.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
In describing the invention, it should be noted that term " on ", D score, " level ", " interior ", the instruction such as " outward "
Orientation or position relationship are based on orientation shown in the drawings or position relationship, or usually put when this invention product uses
Orientation or position relationship, be for only for ease of describe the present invention and simplify describe rather than instruction or hint indication device or
Element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.This
Outward, term " first ", " second " etc. are only used for distinguishing and describe, and it is not intended that indicate or hint relative importance.
Additionally, the term such as term " level ", " vertically ", " pendency " is not offered as requiring parts abswolute level or pendency, and
It is to be slightly tilted.As " level " only refers to for its direction relatively " vertically " more level, it it is not this structure of expression
Must be perfectly level, but can be slightly tilted.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " arrange ",
" install ", " being connected ", " connection " should be interpreted broadly, and connect for example, it may be fixing, it is also possible to be to removably connect, or one
Body ground connects；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to indirect by intermediary
It is connected, can be the connection of two element internals.For the ordinary skill in the art, can be with in concrete condition understanding
State term concrete meaning in the present invention.
First embodiment
Refer to Fig. 1, the present embodiment provides a kind of network system 100, described network system 100 include electrical network main road and
The grid branch that a plurality of and described electrical network main road is connected, every described grid branch is provided with harmonic management device 200.
Refer to Fig. 2, described harmonic management device 200 includes: electric parameter gathers mould 210 and harmonic management module 220,
The outfan of described electric parameter acquisition module 210 electrically connects with the Enable Pin of described harmonic management module 220.
Described electric parameter acquisition module 210 is for gathering the electric parameter information in described grid branch, and judges described
Road is the need of harmonic wave control；Described harmonic management module 220 is for receiving what described electric parameter acquisition module 210 sent
After harmonic wave control signal, described grid branch is carried out harmonic wave control.
Refer to Fig. 3, wherein, described electric parameter acquisition module 210 can include electric parameter harvester 211 and controller
212；The outfan of described electric parameter harvester 211 electrically connects with the input of described controller 212, described controller 212
Outfan electrically connects with the Enable Pin of described harmonic management module 220.
Described electric parameter harvester 211 gathers the electric parameter information in described grid branch, and described electric parameter information
It is sent to described controller 212；After described controller 212 receives described electric parameter information, by described electric parameter information with pre-
The presupposed information first stored mates；If described electric parameter information is with described presupposed information, the match is successful, described controller 212
Harmonic wave control signal is sent to described harmonic management module 220.
Wherein, described presupposed information can be a threshold value being set in advance in described controller 212.When electric parameter is adopted
When the electric parameter information that storage 211 collects is more than or equal to this brother's threshold value, representing that the match is successful, described controller 212 is to institute
State harmonic management module 220 and send harmonic wave control signal.
As a kind of embodiment, described presupposed information can also is that one pre-sets, and has higher limit and lower limit
Value range.I.e. when the electric parameter information that electric parameter harvester 211 collects is in the range of described value range, represent coupling
Success.
Refer to Fig. 4, described harmonic management module 220 includes enabling switch, reactor and capacitor, and described enable switchs
Input electrically connect with the outfan of described electric parameter acquisition module 210, described outfan and the described reactance enabling switch
The input electrical connection of device, described reactor is connected with described capacitor and is formed LC series loop.
As a kind of embodiment, described enable switch can be relay, as another embodiment, and described enable
Switch can also is that audion etc. has the element of selectivity conducting effect.
Refer to Fig. 5, in order to effectively further improve the quality of power supply, as a kind of embodiment, described harmonic management
Device 200 also includes reactive compensation module 230, the Enable Pin of described reactive compensation module 230 and described electric parameter acquisition module
The outfan electrical connection of 210.Described reactive compensation module 230 is for carrying out reactive-load compensation to the terminal in described grid branch.
Further, described reactive compensation module 230 includes that reactive-load compensation enables switch and the idle benefit of multiple parallel connection
Repaying capacitor, the input of described enable switch electrically connects with the outfan of described electric parameter acquisition module 210, and described enable is opened
The outfan closed electrically connects with the capacitor of the plurality of parallel connection, so that grid branch is carried out reactive-load compensation.
It will be appreciated, of course, that reactive-load compensation enables switch can be relay, it is also possible to be that audion etc. has selectivity
The element of conducting effect.
Second embodiment
Refer to Fig. 6, present embodiments provide a kind of harmonic management method, be applied to network system, described network system
The grid branch being connected including electrical network main road and a plurality of and described electrical network main road, every described grid branch is provided with harmonic wave
Processing means, described harmonic management device includes electric parameter acquisition module and harmonic management module, and described electric parameter gathers mould
The outfan of block electrically connects with the Enable Pin of described harmonic management module；Described method includes:
Step S110: described electric parameter acquisition module gathers the electric parameter information in described grid branch, and judges described
Grid branch is the need of harmonic wave control.
If described grid branch needs harmonic wave control, send harmonic wave control signal to described harmonic management module.
Step S120: described harmonic management module is receiving the harmonic wave control signal that described electric parameter acquisition module sends
After, described grid branch is carried out harmonic wave control.
Refer to Fig. 7, wherein, described electric parameter acquisition module includes electric parameter harvester and controller；Described electricity ginseng
Amount acquisition module gathers the electric parameter information in described grid branch, and judge described branch road the need of harmonic wave control, including:
Step S111: described electric parameter harvester gathers the electric parameter information in described grid branch, and described electricity ginseng
Amount information is sent to described controller.
Step S112: after described controller receives described electric parameter information, by described electric parameter information with prestore
Presupposed information mate.
Step S113: the match is successful if described electric parameter information is with described presupposed information, and described controller is to described harmonic wave
Processing module sends harmonic wave control signal.
Wherein, described presupposed information can be a threshold value pre-set in the controller.When electric parameter collection
When the electric parameter information that device collects is more than or equal to this brother's threshold value, representing that the match is successful, described controller is at described harmonic wave
Reason module sends harmonic wave control signal.
As a kind of embodiment, described presupposed information can also is that one pre-sets, and has higher limit and lower limit
Value range.I.e. when the electric parameter information that electric parameter harvester collects is in the range of described value range, represent and mate into
Merit.
The operation principle of network system 100 is, described network system 100 includes electrical network main road and a plurality of and described electrical network
The grid branch that main road connects, every described grid branch is provided with harmonic management device 200, described harmonic management device
200 include: electric parameter gathers mould 210 and harmonic management module 220, the outfan of described electric parameter acquisition module 210 and institute
State the Enable Pin electrical connection of harmonic management module 220.This network system 100 gathers institute by described electric parameter acquisition module 210
State the electric parameter information in grid branch, and judge that described branch road is the need of harmonic wave control；If described branch road needs harmonic wave to control
Reason, electric parameter acquisition module 210 sends harmonic wave control signal to harmonic management module 220, and harmonic management module 220 is receiving
After harmonic wave control signal, described grid branch is carried out harmonic wave control.This network system 100 can solve conventional harmonic administering method
It cannot be guaranteed that the problem proved effective completely in every grid branch, by arranging harmonic management device 200 in every branch road, and
Gathered by parameter and calculate this grid branch while mould 210 gathers electric parameter information the need of harmonic wave control, reduction harmonic wave
Burden during improvement, electrical network produced.
In sum, the invention provides a kind of harmonic management method and a kind of network system 100, the method is by electricity
Parameter acquisition module 210 gathers the electric parameter information in grid branch, and judges that described grid branch is the need of harmonic wave control
After, if described grid branch needs harmonic wave control, send harmonic wave control information to described harmonic management module 220；Described harmonic wave
Processing module 220, after receiving harmonic wave control signal, carries out harmonic wave control to described grid branch.The method can solve tradition
Harmonic wave management method is it cannot be guaranteed that the problem proved effective completely in every grid branch, and meanwhile, the method can reduce harmonic wave control
Time to electrical network produce burden.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a harmonic management method, it is characterised in that be applied to network system, described network system include electrical network main road and
The grid branch that a plurality of and described electrical network main road is connected, every described grid branch is provided with harmonic management device, described humorous
Ripple processing means includes electric parameter acquisition module and harmonic management module, and the outfan of described electric parameter acquisition module is with described
The Enable Pin electrical connection of harmonic management module；Described method includes:
Described electric parameter acquisition module gathers the electric parameter information in described grid branch, and judges whether described grid branch needs
Want harmonic wave control；
Described harmonic management module is after receiving the harmonic wave control signal that described electric parameter acquisition module sends, to described electrical network
Branch road carries out harmonic wave control.
Harmonic management method the most according to claim 1, it is characterised in that described electric parameter acquisition module includes electric parameter
Harvester and controller；Described electric parameter acquisition module gathers the electric parameter information in described grid branch, and judges described
Grid branch the need of harmonic wave control, including:
Described electric parameter harvester gathers the electric parameter information in described grid branch, and described electric parameter information is sent to institute
State controller；
After described controller receives described electric parameter information, described electric parameter information is carried out with the presupposed information prestored
Coupling；
If described electric parameter information is with described presupposed information, the match is successful, and described controller sends humorous to described harmonic management module
Ripple administers signal.
Harmonic management method the most according to claim 2, it is characterised in that described presupposed information be one have higher limit and
The value range of lower limit.
4. a network system, it is characterised in that described network system includes electrical network main road and a plurality of and described electrical network main road
The grid branch connected, every described grid branch is provided with harmonic management device, and described harmonic management device includes electricity ginseng
The enable of amount acquisition module and harmonic management module, the outfan of described electric parameter acquisition module and described harmonic management module
End electrical connection.
Network system the most according to claim 4, it is characterised in that described electric parameter acquisition module includes electric parameter harvester
And controller；The outfan of described electric parameter harvester electrically connects with the input of described controller, described controller defeated
Go out end to electrically connect with the Enable Pin of described harmonic management module.
Network system the most according to claim 4, it is characterised in that described harmonic management module includes enabling switch, electricity
Anti-device and capacitor, the input of described enable switch electrically connects with the outfan of described electric parameter acquisition module, described enable
Switch outfan electrically connect with the input of described reactor, described reactor connect with described capacitor formed LC connect back
Road.
Network system the most according to claim 6, it is characterised in that described enable switch is relay.
Network system the most according to claim 6, it is characterised in that described enable switch is audion.
Network system the most according to claim 4, it is characterised in that described harmonic management device also includes reactive-load compensation mould
Block, the Enable Pin of described reactive compensation module electrically connects with the outfan of described electric parameter acquisition module, described reactive-load compensation mould
Block is for carrying out reactive-load compensation to the terminal in grid branch.
Network system the most according to claim 9, it is characterised in that described reactive compensation module includes that reactive-load compensation makes
Can switch and the reactive-load compensation capacitor of multiple parallel connection, described reactive-load compensation enables the input of switch and adopts with described electric parameter
The outfan electrical connection of collection module, described reactive-load compensation enables the outfan of switch and the plurality of reactive compensation capacitor in parallel
Device electrically connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793869.5A CN106253282A (en) | 2016-08-31 | 2016-08-31 | A kind of harmonic management method and a kind of network system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610793869.5A CN106253282A (en) | 2016-08-31 | 2016-08-31 | A kind of harmonic management method and a kind of network system |
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| CN106253282A true CN106253282A (en) | 2016-12-21 |
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| CN201610793869.5A Pending CN106253282A (en) | 2016-08-31 | 2016-08-31 | A kind of harmonic management method and a kind of network system |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202930953U (en) * | 2012-11-20 | 2013-05-08 | 南通大洋电力设备有限公司 | Low-voltage dynamic reactive power compensation and harmonic suppression device |
| US20130207393A1 (en) * | 2012-01-24 | 2013-08-15 | Repower Systems Se | Wind farm harmonic predictor and method for predicting harmonics |
-
2016
- 2016-08-31 CN CN201610793869.5A patent/CN106253282A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130207393A1 (en) * | 2012-01-24 | 2013-08-15 | Repower Systems Se | Wind farm harmonic predictor and method for predicting harmonics |
| CN202930953U (en) * | 2012-11-20 | 2013-05-08 | 南通大洋电力设备有限公司 | Low-voltage dynamic reactive power compensation and harmonic suppression device |
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