CN203504180U - Harmonic control device for power supply system - Google Patents
Harmonic control device for power supply system Download PDFInfo
- Publication number
- CN203504180U CN203504180U CN201320494652.6U CN201320494652U CN203504180U CN 203504180 U CN203504180 U CN 203504180U CN 201320494652 U CN201320494652 U CN 201320494652U CN 203504180 U CN203504180 U CN 203504180U
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- Prior art keywords
- harmonic
- compensation module
- parallel
- module
- electric power
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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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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model discloses a harmonic control device for a power supply system, and the device comprises a plurality of harmonic control units which are in parallel connection to form a chain structure. Each harmonic control unit comprises a filter compensation module and a fixing compensation module, wherein the filter compensation module is formed by the series connection of a bidirectional triode thyristor and an inductor and is used for the dynamic compensation of 13th harmonic or less, and the fixing compensation module consists of an inductor group which is in parallel connection with the filter compensation module and is used for compensating and fixing a fundamental-wave reactive power and inhibiting the 3th harmonic or more. According to the utility model, the active filter compensation modules and the fixing compensation modules are employed, so the device can completely filter out harmonic waves, can improve the power supply quality of electromechanical equipment of industrial and mining enterprises, can improve efficiency, is good in electricity-saving effect, can improve the quality of electric energy, achieves the perfect combination of energy-saving and cost-reducing with power quality improving, is simple in circuit, is high in system safety and device reliability, and is convenient for installation and maintenance.
Description
Technical field
The utility model relates to electric harmonic and administers technical field, particularly a kind of harmonic treating apparatus that is applied to electric power system.
Background technology
Along with the extensive use of power electronic technology, electric energy has obtained utilizing more fully.But, nonlinear power electronic equipment distorts the voltage and current of electrical network, along with the increase of non-linear equipment quantity with and the increase day by day of capacity, make Harmonious Waves in Power Systems pollution problem day by day serious, have a strong impact on the quality of electric energy, the safety of electric power system, economical operation are caused to great impact.For industrial and mining enterprises' electric power system, due to problems such as harmonic wave, voltage fluctuation and power factor are low, cause loss greatly to increase, and have a strong impact on the quality of power supply and electric power system and electric equipment safety, comprise that affecting electric equipment normally moves, shorten equipment life, accident causes power failure, initiation fire, produces the problems such as interference to communication, electrical type equipment.Meanwhile, modern society also constantly increases with the demand of improving the quality of power supply energy-saving and cost-reducing.Therefore, tighten and improve the reactive power compensation situation of power distribution network for reducing loss, the raising quality of power supply etc. has very important significance, and has good economic and social benefit.
Utility model content
Main purpose of the present utility model is the shortcoming that overcomes prior art, and a kind of harmonic treating apparatus that is applied to electric power system of having realized energy-saving and cost-reducing and the perfect adaptation that the quality of power supply improves is provided.
The utility model adopts following technical scheme:
A kind of harmonic treating apparatus that is applied to electric power system, include a plurality of harmonic wave controls unit, a plurality of harmonic wave controls unit chain structure that forms in parallel, each harmonic wave control unit includes a filtering compensation module and a fixed compensation module, described filtering compensation module is in series by bidirectional triode thyristor and inductance, dynamic compensation for 13 times and following subharmonic, described fixed compensation module consists of the capacitor group in parallel with filtering compensation module, for compensating fixedly First Harmonic Reactive Power and inhibition 3 times and above each harmonic.
Further, described bidirectional triode thyristor two ends are also parallel with resistance, in parallel with a resistor after, then connect with inductance and form filtering compensation module, the series circuit of filtering compensation module is in parallel with the capacitor group of fixed compensation module again.
Further, described harmonic wave control unit is parallel on two of the filtering compensation module of its adjacent harmonic wave control unit and fixed compensation module be connected in parallel a little.
Further, described a kind of harmonic treating apparatus that is applied to electric power system adopts hermetically sealed water-cooling pattern.
Further, described a kind of harmonic treating apparatus that is applied to electric power system adopts modularized design, and is provided with redundant module.
Further, described a kind of each module that is applied to the harmonic treating apparatus of electric power system is provided with independent control power supply.
From above-mentioned, to description of the present utility model, compared with prior art, the utlity model has following beneficial effect:
First, utilize active power filtering compensating module and fixed compensation module, by harmonic current in testing circuit, control bidirectional triode thyristor and produce inverse current and its counteracting, filtering harmonic wave completely, improve the power supply quality of industrial and mining enterprises' electromechanical equipment, can raise the efficiency, power savings is obvious, can improve the quality of power supply again, thoroughly realized the energy-saving and cost-reducing perfect adaptation improving with the quality of power supply, and circuit design is simple, can greatly improve security of system and install self reliability;
The second, a plurality of harmonic wave controls unit chain structure that forms in parallel, 400V, with interior direct linked network, does not need transformer, easy for installation, and can simplify system;
The 3rd, adopt hermetically sealed water-cooling pattern, exempt dirt;
The 4th, each module is provided with independent control power supply, to improve the voltage dynamic equilibrium of module, reduces the locking of module, thereby reduces the locking shutdown probability of complete machine;
The 5th, adopt modularized design, and be provided with redundant module, as occur module failure, can redundancy running, during maintenance, can directly change module, convenient.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the filtering compensation module of the utility model embodiment;
Fig. 2 is the filtering compensation module of the utility model embodiment working state figure under no-load running pattern;
Fig. 3 is the filtering compensation module of the utility model embodiment working state figure under operation at leading power factor pattern;
Fig. 4 is the filtering compensation module of the utility model embodiment working state figure under perceptual operational mode;
Fig. 5 is the circuit diagram of a harmonic wave control unit of the utility model embodiment;
Fig. 6 is the output voltage figure of a harmonic wave control unit of Fig. 5;
Fig. 7 is the circuit diagram that a plurality of harmonic wave controls unit of the utility model embodiment forms chain structure;
Fig. 8 is the output voltage figure that a plurality of harmonic wave controls unit of Fig. 7 forms chain structure.
Embodiment
Below by embodiment, the utility model will be further described.
Referring to figs. 1 through Fig. 8, a kind of harmonic treating apparatus that is applied to electric power system of the present utility model, include a plurality of harmonic wave controls unit, each harmonic wave control unit includes a filtering compensation module and a fixed compensation module, described filtering compensation module is in series by bidirectional triode thyristor and inductance, dynamic compensation for 13 times and following subharmonic, described fixed compensation module consists of the capacitor group in parallel with filtering compensation module, for compensating fixedly First Harmonic Reactive Power and inhibition 3 times and above each harmonic.Described bidirectional triode thyristor two ends are also parallel with resistance, in parallel with a resistor after, then connect with inductance and form filtering compensation module, the series circuit of filtering compensation module is in parallel with the capacitor group of fixed compensation module again.By harmonic current in testing circuit, control bidirectional triode thyristor and produce inverse current and its counteracting, filtering harmonic wave completely, improve the power supply quality of industrial and mining enterprises' electromechanical equipment, can raise the efficiency, power savings is obvious, can improve the quality of power supply again, thoroughly realized the energy-saving and cost-reducing perfect adaptation improving with the quality of power supply, and circuit design is simple, can greatly improve security of system and install self reliability.
Referring to figs. 1 through Fig. 4, filtering compensation module of the present utility model under no-load running pattern, U
1=U
s, electric current is 0, filtering compensation module does not absorb or sends idle; Under operation at leading power factor pattern, U
1>U
s, producing leading electric current, filtering compensation module sends controlled idle continuously; Under perceptual operational mode, U
1<U
s, producing the electric current lagging behind, filtering compensation module absorbs controlled idle continuously.
With reference to Fig. 5 to Fig. 8, a plurality of harmonic wave controls unit chain structure that forms in parallel, described harmonic wave control unit is parallel on two of the filtering compensation module of its adjacent harmonic wave control unit and fixed compensation module be connected in parallel a little, 400V is with interior direct linked network, do not need transformer, easy for installation, and can simplify system.
The utility model adopts hermetically sealed water-cooling pattern, exempts dirt; Adopt modularized design, and be provided with redundant module, as occur module failure, can redundancy running, during maintenance, can directly change module, convenient; Each module is provided with independent control power supply, to improve the voltage dynamic equilibrium of module, reduces the locking of module, thereby reduces the locking shutdown probability of complete machine.
Above are only an embodiment of the present utility model, but design concept of the present utility model is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should belong to the behavior of invading the utility model protection range.
Claims (6)
1. a harmonic treating apparatus that is applied to electric power system, it is characterized in that: include a plurality of harmonic wave controls unit, a plurality of harmonic wave controls unit chain structure that forms in parallel, each harmonic wave control unit includes a filtering compensation module and a fixed compensation module, described filtering compensation module is in series by bidirectional triode thyristor and inductance, dynamic compensation for 13 times and following subharmonic, described fixed compensation module consists of the capacitor group in parallel with filtering compensation module, for compensating fixedly First Harmonic Reactive Power and inhibition 3 times and above each harmonic.
2. a kind of harmonic treating apparatus that is applied to electric power system as claimed in claim 1, it is characterized in that: described bidirectional triode thyristor two ends are also parallel with resistance, after in parallel with a resistor, connect with inductance and form filtering compensation module, the series circuit of filtering compensation module is in parallel with the capacitor group of fixed compensation module again.
3. a kind of harmonic treating apparatus that is applied to electric power system as claimed in claim 2, is characterized in that: described harmonic wave control unit is parallel on two of the filtering compensation module of its adjacent harmonic wave control unit and fixed compensation module be connected in parallel a little.
4. a kind of harmonic treating apparatus that is applied to electric power system as claimed in claim 3, is characterized in that: adopt hermetically sealed water-cooling pattern.
5. a kind of harmonic treating apparatus that is applied to electric power system as claimed in claim 4, is characterized in that: adopt modularized design, and be provided with redundant module.
6. a kind of harmonic treating apparatus that is applied to electric power system as claimed in claim 5, is characterized in that: each module is provided with independent control power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320494652.6U CN203504180U (en) | 2013-08-13 | 2013-08-13 | Harmonic control device for power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320494652.6U CN203504180U (en) | 2013-08-13 | 2013-08-13 | Harmonic control device for power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203504180U true CN203504180U (en) | 2014-03-26 |
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ID=50335125
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320494652.6U Expired - Fee Related CN203504180U (en) | 2013-08-13 | 2013-08-13 | Harmonic control device for power supply system |
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| CN (1) | CN203504180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901312A (en) * | 2015-06-24 | 2015-09-09 | 厦门恒瑞特节能科技有限公司 | Intelligent power saving system based on harmonic wave filtering out |
-
2013
- 2013-08-13 CN CN201320494652.6U patent/CN203504180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901312A (en) * | 2015-06-24 | 2015-09-09 | 厦门恒瑞特节能科技有限公司 | Intelligent power saving system based on harmonic wave filtering out |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20170813 |