CN107453361A - A kind of eletric power induction regulates and controls filtering system harmonic propagation matrix computational approach - Google Patents
A kind of eletric power induction regulates and controls filtering system harmonic propagation matrix computational approach Download PDFInfo
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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
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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
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The present invention discloses a kind of eletric power induction regulation and control filtering system harmonic propagation matrix computational approach, according to Kirchoff s voltage current law, multiwinding transformer voltage transfer theory, magnetic potential balance principle and virtual impedance control principle, the sensing filter transformer winding current transfer matrix influenceed as the load harmonic current and background harmonic voltage in major harmonic source is established；According to the sensing filter transformer winding current transfer matrix obtain eletric power induction regulation and control filtering system respectively implement based on passive filtering method and based on two kinds of mixed filtering method in the case of side harmonics electric current quantitative calculation relational expression.A kind of eletric power induction regulation and control filtering system harmonic propagation matrix computational approach proposed by the present invention is effective, simple and calculating is accurate.
Description
Technical field
The present invention relates to a kind of filtering system, regulates and controls filtering system harmonic propagation more particularly, to a kind of eletric power induction
Matrix computational approach.
Background technology
In current rectification field, commonly use active filter or passive filtration unit improves electric energy matter in system net side
Amount, and harmonic wave or reactive component are ignored to electrical equipment, particularly to the influence caused by rectifier transformer.Sensing filtering skill
Art is redesigned to rectifier transformer, and using the 3rd extra Filter Winding, harmonic flux is offset in inside transformer, it is intended to
It is influenceed in Circuit Fault on Secondary Transformer harmonic carcellation.And eletric power induction regulation and control filtering system combines sensing filtering technique and mixing
The advantage of filtering method, greatly improve the service behaviour of sensing filtering system so that more harmonic components can be in transformer
Offseted between secondary winding.The quantitative analysis for regulating and controlling filtering system for sensing at present is confined to utilize one phase equivalent circuit,
And rare analyzed under three-phase circuit.
The content of the invention
It is of the invention to propose a kind of effective, simple and calculating accurately eletric power induction regulation and control filtering system harmonic propagation matrix meter
Calculation method.
The technical proposal of the invention is realized in this way：
A kind of eletric power induction regulates and controls filtering system harmonic propagation matrix computational approach, is determined according to Kirchoff s voltage electric current
Rule, multiwinding transformer voltage transfer theory, magnetic potential balance principle and virtual impedance control principle, foundation are used as major harmonic source
Load harmonic current and background harmonic voltage influence sensing filter transformer winding current transfer matrix；According to the sensing
Filter transformer winding current transfer matrix, which obtains eletric power induction regulation and control filtering system, to be implemented to be based on passive filtering method respectively
With the quantitative calculation relational expression based on side harmonics electric current in the case of two kinds of mixed filtering method.
Eletric power induction mentioned in the present invention regulates and controls filtering system merely with one group of single tuned filter, can be multiple humorous
Tuning is realized under wave frequency rate.Mathematical modeling is carried out under three-phase circuit, list side harmonics electric current by load harmonic current and
The transfer matrix of background harmonic voltage effect, helps accurately quantitatively to calculate side harmonics electric current, and can utilize and be somebody's turn to do
Transfer matrix carries out stability analysis to system and design is adapted to the Advanced Control Strategies of sensing filtering technique.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is that eletric power induction of the present invention regulates and controls filtering system topological structure schematic diagram；
The control strategy block diagram that Fig. 2 is taken by eletric power induction of the present invention regulation and control filtering system；
Fig. 3 is present invention sensing filter transformer harmonic wave equivalent circuit diagram.
Reference：
1st, power network 2, system impedance 3, sensing filter transformer
4th, rectification load 5, single tuned filter 6, inverter
7th, synchronized and voltage stabilizing control 8, virtual impedance control 9, first winding
10th, secondary winding
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1 is referred to, a kind of eletric power induction regulates and controls filtering system harmonic propagation matrix computational approach, according to kirchhoff electricity
Current voltage law, multiwinding transformer voltage transfer theory, magnetic potential balance principle and virtual impedance control principle, establish as master
The sensing filter transformer winding current transfer matrix for wanting the load harmonic current of harmonic source and background harmonic voltage to influence；According to
The sensing filter transformer winding current transfer matrix obtains eletric power induction regulation and control filtering system to be implemented based on passive respectively
Filtering method and the quantitative calculation relational expression based on side harmonics electric current in the case of two kinds of mixed filtering method.
Fig. 1 is referred to, the eletric power induction regulation and control filtering system includes a sensing filtering transformation 3 and one is integrated in it
In filter branch 5；Described sensing filter transformer 3 uses three winding formula structure, and its first winding uses star-star connection side
Formula is connected by system impedance 2 with power network 1, and secondary winding uses the extend-triangle mode of connection, it is secondary prolong side winding directly with
Rectification load 4 connects, and as Filter Winding, its equiva lent impedance is zero to secondary triangle winding, and filter branch is connected to triangle winding and prolonged
Point of intersection between the winding of side；
The single tuned filter 5 and a use virtual impedance that described filter branch designs including one group of complete modulation control
The voltage source inverter 6 of strategy, it exchanges end exit potential VCMeet following relational expression：
Wherein, KnIt is the virtual impedance that dimension is ohm, also therefore can be equivalent to a pure resistance, ISmnIt is humorous for net side
Ripple electric current, " m " represent A, B, C three-phase, and " n " represents overtone order.
Fig. 2 is the control strategy block diagram that eletric power induction regulation and control filtering system is taken, and control strategy mainly includes power network
Synchronization and voltage stabilizing control 7 and virtual impedance control two large divisions are, it is necessary to which the electrical quantity of extraction has net side three-phase voltage, three-phase electricity
Stream, inverter direct-current voltage.
Fig. 3 is sensing filter transformer harmonic wave equivalent circuit diagram.According to magnetic potential balance principle, can obtain between Transformer Winding
Current relationship：
In formula, IAan、IBbn、ICcnIt is the electric current on threephase load winding respectively；Iabn、Ibcn、IcanTriangle respectively around
The Filter Winding electric current of circulation in group.
Formula 3 can be obtained according to multiwinding transformer voltage Transfer Formula：
In formula, N1、N2、N3Respectively sense filter transformer first winding, secondary side winding and the secondary triangle winding of prolonging
The number of turn；Z1nAnd Z3nTo sense the equivalent winding impedance of filter transformer；V1mAnd V3mFor sensing filter transformer be added in net side around
Three-phase voltage in group and Filter Winding；ISmnIt is net side three phase harmonic electric current.
According to kirchhoff Current Voltage law, formula 4-6 can be obtained：
Wherein, Iaon、Ibon、IconIt is the three-phase current on filter branch respectively；Vaon、Vbon、VconIt is filter branch respectively
On three-phase voltage；VSAn、VSBn、VSCnIt is net side three-phase background harmonic voltage respectively；ZSnFor system impedance, ZfnFiltered for single tuning
The equiva lent impedance of ripple device, sensing filtering technique require that the zero impedance design under particular harmonic frequency, i.e. Z3n=0, Zfn=0.
With reference to above-mentioned relation formula 1-6, when considering load harmonic current and background harmonic voltage respectively, filter transformer is sensed
Transitive relation between side harmonics electric current and major harmonic source can embody as follows.
As three-phase background harmonic voltage VSmnIt is zero, considers load harmonic current ILmnTo the shadow of transformer side harmonics electric current
Ring, i.e. the expression formula of side harmonics electric current is：
In formula, ZA1、ZA2、ZP1、ZP2It is system characteristic impedance, the characteristic is determined by the impedance parameter of system components,
And haveIts expression is：
As threephase load harmonic current ILmnIt is zero, background harmonic voltage VSmnInfluence to transformer side harmonics electric current,
That is the expression formula of side harmonics electric current is：
According to the superposition theorem in basic circuit principle, side harmonics electric current can use harmonic voltage transfer matrix TVIt is harmonious
Ripple electric current transfer matrix TIIt is expressed as below：
Work as KnWhen=0, the harmonic propagation pass for implementing the eletric power induction filtering system based on passive filtering method can be obtained
It is formula.In the eletric power induction filtering system work based on passive filtering method, side harmonics electric current is only by the same as mutually different with one
Phase load harmonic current influences, and is also influenceed by same phase background harmonic voltage；Adjusted in the eletric power induction based on mixed filtering method
When controlling filtering system work, side harmonics electric current is influenceed by threephase load harmonic current simultaneously, and also by three-phase background harmonicses electricity
Pressure influences.
Eletric power induction mentioned in the present invention regulates and controls filtering system merely with one group of single tuned filter, can be multiple humorous
Tuning is realized under wave frequency rate.Mathematical modeling is carried out under three-phase circuit, list side harmonics electric current by load harmonic current and
The transfer matrix of background harmonic voltage effect, helps accurately quantitatively to calculate side harmonics electric current, and can utilize and be somebody's turn to do
Transfer matrix carries out stability analysis to system and design is adapted to the Advanced Control Strategies of sensing filtering technique
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (4)
1. a kind of eletric power induction regulates and controls filtering system harmonic propagation matrix computational approach, it is characterised in that according to kirchhoff electricity
Current voltage law, multiwinding transformer voltage transfer theory, magnetic potential balance principle and virtual impedance control principle, establish as master
The sensing filter transformer winding current transfer matrix for wanting the load harmonic current of harmonic source and background harmonic voltage to influence；According to
The sensing filter transformer winding current transfer matrix obtains eletric power induction regulation and control filtering system to be implemented based on passive respectively
Filtering method and the quantitative calculation relational expression based on side harmonics electric current in the case of two kinds of mixed filtering method.
2. a kind of eletric power induction regulation and control filtering system harmonic propagation matrix computational approach as claimed in claim 1, its feature exist
In the eletric power induction regulation and control filtering system includes a sensing filter transformer and a filter branch being fully integrated therein；
Described sensing filter transformer uses three winding formula structure, and its first winding uses star-star connection mode, and secondary winding uses
The extend-triangle mode of connection, the equiva lent impedance of its intermediate cam winding is zero；
Described filter branch includes the single tuned filter and a use virtual impedance control strategy of one group of complete modulation design
Voltage source inverter, its exchange end exit potential VCMeet following relational expression：
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3. a kind of eletric power induction regulation and control filtering system harmonic propagation matrix computational approach as claimed in claim 2, its feature exist
In the transitive relation between sensing filter transformer side harmonics electric current and major harmonic source is made to embody as follows：
As three-phase background harmonic voltage VSmnWhen being zero, load harmonic current ILmnTransformer side harmonics electric current is influenceed, net side
The expression formula of harmonic current is：
In formula, ZA1、ZA2、ZP1、ZP2It is system characteristic impedance, the characteristic is determined by the impedance parameter of system components, and is hadIts expression is：
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Wherein, N1、N2、N3Respectively sense filter transformer first winding, the secondary circle for prolonging side winding and secondary triangle winding
Number, ZSnFor system impedance, ZfnFor the equiva lent impedance of single tuned filter, Z1nAnd Z3nTo sense the equivalent winding of filter transformer
Impedance；
As threephase load harmonic current ILmnIt is zero, background harmonic voltage VSmnTransformer side harmonics electric current is influenceed, i.e. net side
The expression formula of harmonic current is：
4. a kind of eletric power induction regulation and control filtering system harmonic propagation matrix computational approach as claimed in claim 2, its feature exist
According to the superposition theorem in basic circuit principle, side harmonics electric current can use harmonic voltage transfer matrix TVHarmonic electric current
Transfer matrix TIIt is expressed as below：
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Work as KnWhen=0, the harmonic propagation relational expression for implementing the eletric power induction filtering system based on passive filtering method is obtained.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113190986A (en) * | 2021-04-22 | 2021-07-30 | 中南大学 | Compact design method of induction filter transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595048A (en) * | 2013-11-18 | 2014-02-19 | 湖南大学 | Mixed induction type active electric power filter system |
| CN103956739A (en) * | 2014-04-25 | 2014-07-30 | 湖南大学 | Method for achieving electric power filtering and reactive compensation of direct-current transmission converter station |
| CN106169007A (en) * | 2016-08-24 | 2016-11-30 | 国家电网公司 | Method calculated by a kind of sensing filtering converter power transformer harmonic current transferometer |
-
2017
- 2017-06-14 CN CN201710448066.0A patent/CN107453361B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595048A (en) * | 2013-11-18 | 2014-02-19 | 湖南大学 | Mixed induction type active electric power filter system |
| CN103956739A (en) * | 2014-04-25 | 2014-07-30 | 湖南大学 | Method for achieving electric power filtering and reactive compensation of direct-current transmission converter station |
| CN106169007A (en) * | 2016-08-24 | 2016-11-30 | 国家电网公司 | Method calculated by a kind of sensing filtering converter power transformer harmonic current transferometer |
Non-Patent Citations (2)
| Title |
|---|
| QIANYI LIU等: "A Controllably Inductive Power Filtering Method For Large-Power Industrial Rectifier System", 《2016 IEEE 16TH INTERNATIONAL CONFERENCE ON ENVIRONMENT AND ELECTRICAL ENGINEERING (EEEIC)》 * |
| 许加柱: "新型换流变压器及其滤波系统的理论与应用研究", 《中国博士学位论文全文数据库 工程科技II辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113190986A (en) * | 2021-04-22 | 2021-07-30 | 中南大学 | Compact design method of induction filter transformer |
| CN113190986B (en) * | 2021-04-22 | 2022-08-12 | 中南大学 | Compact design method of induction filter transformer |
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