CN1441525A - Power economizer - Google Patents

Power economizer Download PDF

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Publication number
CN1441525A
CN1441525A CN02106678A CN02106678A CN1441525A CN 1441525 A CN1441525 A CN 1441525A CN 02106678 A CN02106678 A CN 02106678A CN 02106678 A CN02106678 A CN 02106678A CN 1441525 A CN1441525 A CN 1441525A
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China
Prior art keywords
coil
voltage
iron core
battery saving
saving arrangement
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Granted
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CN02106678A
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Chinese (zh)
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CN100350710C (en
Inventor
刘国雄
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CHANGSHI DEVELOPMENT Co Ltd
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CHANGSHI DEVELOPMENT Co Ltd
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Priority to CNB021066787A priority Critical patent/CN100350710C/en
Publication of CN1441525A publication Critical patent/CN1441525A/en
Priority to HK04101357A priority patent/HK1058580A1/en
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Publication of CN100350710C publication Critical patent/CN100350710C/en
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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
    • Y02E40/40—Arrangements for reducing harmonics

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

This invention disclose an electricity saving device including an iron core composed of three column, three master excitation coils winding on the three columns separately expressing in star connection, three voltage adjusting coils winding on the same iron core columns together with the said master excitation excitation coils, on ened of each voltage adjusting coil is connected with the output of the related master excitation coil winded on the column of the same iron core, the other end of which is connected to each shorting stub and three harmonic cancellation coils winding on the same iron core column too, the harmonic cancellation coil connecting to a capacitor forms a triangle.

Description

Battery saving arrangement
Technical field
The present invention relates to a kind of battery saving arrangement, this installs for 220V-280V, and the three-phase alternating current of 50HZ-60HZ has and suppresses high all harmonic waves, balanced three-phase voltage, adjustment and advance piezoelectric voltage, suppress flickering, reduce the function of line loss.
Background technology
The country of economy and technology prosperity all pays much attention to saves energy.The Japan and the U.S. have developed the power saving apparatus of series of different.The structure of this type systematic is all based on electronic building brick, is used to regulate the three-phase voltage with the balance using electricity system, and adopts converter technique to improve power factor etc.But the service condition of these battery saving arrangements is had relatively high expectations, if because of voltage ripple of power network does not match than factors such as big and power utilization environments, the range of application of these devices is restricted.
Summary of the invention
In order to overcome above-mentioned shortcoming, the objective of the invention is for a kind of battery saving arrangement is provided, the inrush current and absorbing that this device can be regulated the various inductive electrical appliances of three-phase voltage, balanced three-phase current, reduction of low-voltage power supply system crosstalk in supply network three, five, the seventh harmonic.
Electricity saver of the present invention adopts the structure of similar dry-type transformer, and its overload capacity is strong, shock-resistant, applied widely, compares with existing same device, and its service condition is not high.
In order to reach purpose of the present invention, according to a kind of battery saving arrangement of the present invention, it is characterized in that, comprising:
Iron core, it comprises three column structures;
Three main magnet exciting coils, they are wound on three column structures of described iron core respectively and are Y-connection;
Three voltages are adjusted coil, each voltage is adjusted coil and described each main magnet exciting coil is wound on respectively on the column structure of same described iron core, the wherein end that each voltage is adjusted coil is connected to it and is wound on the output that corresponding master on the column structure of same described iron core encourages electric coil, and wherein the other end is connected on the short circuit sheet of each adjustable gear; With
Three harmonic waves are eliminated coil, each harmonic wave is eliminated coil and described each main magnet exciting coil and voltage adjustment coil and is wound on respectively on the column structure of same described iron core, each harmonic wave is eliminated coil and is connected into triangle, and each harmonic wave elimination coil is connected with a capacitor.
Adopt high-quality silicon steel sheet to make iron core according to battery saving arrangement according to the present invention, be equipped with specially designed size, make the magnetic resistance minimum that iron core presents in magnetic flux, to reduce core loss with column structure.
According to battery saving arrangement of the present invention, the number of turn of main magnet exciting coil is less and be connected between the low-voltage output and load of transformer, be used to regulate the output voltage values of setting, and the variable inductor that is equivalent in system, connect, its inductance value changes with the character of load current.
Voltage adjustment coil and main magnet exciting coil are with on an iron core column, the one end is connected main output of encouraging electric coil, its other end is connected on the short circuit sheet of adjustable gear, owing to be connected in parallel on the main magnet exciting coil output between an end and load, voltage is adjusted impulse current and the load changing rate that coil can be experienced load synchronously, can cause the changes of magnetic field of voltage adjustment coil, because it is same on an iron core column with main magnet exciting coil, the vector plus-minus is carried out by the vector principle in the resultant magnetic field of two coils, this resultant magnetic field is adjusted the resistance value of power saver simultaneously again, thereby impulse current is cut down, reduced electric energy loss.
Another feature technology of battery saving arrangement of the present invention is to have designed harmonic wave separately to eliminate coil, and with main magnet exciting coil, voltage is adjusted coil with on an iron core column.Because on the three-phase alternating-current supply if any high order harmonic component, both can increase line loss, also can bring great harm to the fail safe of power consumption equipment, this coil can absorb high order harmonic component from electrical network can suppress high order harmonic component that load produces again to electric network influencing, makes the power supply cleaning that becomes.
According to the present invention, line voltage raises when the electrical network load reduces, the input voltage of battery saving arrangement of the present invention also raises, this moment, output voltage raise, and voltage is adjusted the voltage rising of coil, and exciting current will increase, regulate the output impedance of battery saving arrangement jointly with the resultant magnetic field of main magnet exciting coil, make output voltage get the increasing degree of increasing degree, thereby reduced the loss of loaded line, to reach the effect of economize on electricity less than line voltage.
Battery saving arrangement of the present invention adopts the structure that is similar to dry-type transformer, is wound with the function corresponding coil on the three pillar type iron core, and promptly main magnet exciting coil, voltage adjust coil and harmonic wave is eliminated coil.By the special mode of connection according to the present invention, utilize the electromagnetic balance principle, can reduce the starting current of various inductive loads effectively, make by the load of any mode of connection and the caused three-phase current unbalance of electrical appliance and the negative phase-sequence that produces, the voltage and current of zero-sequence component are significantly improved the supplementary load loss of corresponding minimizing low-voltage supply line.The electromagnetic balance technology can be regulated the power consumption equipment fixed value voltage that exceeds the quata effectively, and power consumption equipment is moved in a less expensive interval, thereby reaches the purpose of economize on electricity.
Battery saving arrangement of the present invention is used to be connected in series between the low-voltage output and load of distribution transformer, is applicable to all kinds of loads single-phase, three phase mains.Device of the present invention has the high order harmonic component of inhibition, regulated output voltage, the impact of reduction mutation current and the function of line loss, is a kind of comprehensive battery saving arrangement.
Description of drawings
Fig. 1 is the structure principle chart according to the main magnet exciting coil of battery saving arrangement of the present invention and voltage adjustment coil;
Fig. 2 is an equivalent circuit diagram of eliminating coil according to the harmonic wave of battery saving arrangement of the present invention;
Fig. 3 A and 3B are the core structure schematic diagrames according to battery saving arrangement of the present invention.
The embodiment explanation
Fig. 1 is the structure principle chart according to the main magnet exciting coil of battery saving arrangement of the present invention and voltage adjustment coil.Among Fig. 1, R-r, S-s and T-t are main magnet exciting coils, adopt the copper cash of 3-2.7 * 12mm, and the number of turn is 20 circles.The number of turn of main magnet exciting coil is less, its connection is to be connected between transformer low voltage output and the load, be used to regulate the output voltage values of setting, and the variable inductor that in system, is equivalent to connect, its inductance value changes with the character of load current, thereby the impact electric current has tangible reduction effect.
Voltage is adjusted coil and is encouraged electric coil with on an iron core column with the master.Voltage is adjusted one of coil and is terminated at main output of encouraging electric coil, and the other end is connected on the short circuit sheet of adjustable gear (0%, 2%, 4% and 6% voltage adjustment).For different adjustable gears, the material specification of its coil is different with the number of turn.Voltage adjustment for 6%, the copper cash of employing 3.8 * 2.2mm, the number of turn is 220 circles; Voltage adjustment for 4%, the copper cash of employing diameter 2.6mm, the number of turn is 80 circles; Voltage adjustment for 2%, the copper cash of employing diameter 2.2mm, the number of turn is 160 circles; Voltage adjustment for 0%, the copper cash of employing diameter 1.5mm, the number of turn is 460 circles.Owing on an end of voltage adjustment coil and the output that load is connected in main magnet exciting coil in parallel, can experience the impulse current and the load changing rate of load synchronously, thereby cause the changes of magnetic field in the voltage adjustment coil so voltage is adjusted coil.Because voltage adjustment coil and main magnet exciting coil are with on an iron core column, the vector plus-minus is carried out by the vector principle in the resultant magnetic field of two coils, the resistance value of battery saving arrangement will be adjusted in this resultant magnetic field, thereby impulse current is cut down, to reach the purpose that reduces electric energy loss.
Fig. 2 is an equivalent circuit diagram of eliminating coil according to the harmonic wave of battery saving arrangement of the present invention.In the present invention, basic principle according to electromagnetic induction, global design in conjunction with battery saving arrangement, especially harmonic wave being eliminated coil connects into triangle and is connected with the capacitors in series of a constant volume, form harmonic wave and eliminate circuit, be used to eliminate the high order harmonic component that produces from load-side and because of the Y-connection of battery saving arrangement itself, particularly eliminate third-harmonic component.Harmonic wave is eliminated the copper cash of coil L1, L2 and L3 employing diameter 1.5mm, and its number of turn is 400 circles.
1. eliminate the triple-frequency harmonics that battery saving arrangement self produces
When battery saving arrangement three phase windings were received on the three-phase sine-wave electrical network, voltage was sinusoidal wave.Because of the nonlinear characteristic of magnetic circuit, magnetic flux becomes flat-topped wave, wherein contains third-harmonic component Φ 3, it induces the triple-frequency harmonics electromotive force that lags behind magnetic flux 90 degree in winding, and is superimposed upon on the first-harmonic, and the sine voltage of output is distorted.In the battery saving arrangement of the present invention, introduce when three independently harmonic wave is eliminated coil and is connected into triangle, the triple-frequency harmonics magnetic flux is eliminated in the coil at these three harmonic waves and is induced the triple-frequency harmonics electromotive force, in the triangle loop, produce triple harmonic current, the reverse triple-frequency harmonics magnetic flux that this electric current produces has been cut down the magnetic flux of former triple-frequency harmonics, makes flux waveforms and induced potential waveform all approach sine wave, thereby improved output voltage, made load obtain the voltage waveform of non-distortion.
Triple harmonic current in three-phase current can be represented by the formula
I 03A＝I 03mSin3ωt
I 03B＝I 03mSin3(ωt-120)＝I 03mSin3ωt
I 03C＝I 03mSin3(ωt-240)＝I 03mSin3ωt
Such three-phase triple harmonic current all is identical in time, and the main magnet exciting coil of battery saving arrangement and voltage adjustment coil all are star connection, and own centre line, described triple harmonic current I 03A, I 03B, I 03CDirection with all flowing to central point in a flash or all outwards flowing out from central point, promptly whichever winding all can't form the loop, thereby triple harmonic current is passed through.
2. generation series resonance is cut down high order harmonic component
Referring to Fig. 2, when harmonic wave elimination coil inserts suitable electric capacity, in its corresponding equivalent electric circuit:
Line impedance Z=U/I=R+J (ω L-1/ ω C)
For certain frequency f 3During resonance, ω 3L-1/ ω 3C=0
When producing resonance, f 3The harmonic current maximum of frequency produces reverse f 3The harmonic flux of frequency is also maximum, has cut down original f 3Harmonic flux makes f 3Frequency harmonics significantly reduces the interference of total magnetic flux and induced potential, thereby has cut down the loss that harmonic wave produces, and output voltage waveforms is improved, and improved electric energy.
3. harmonic wave is eliminated the selection of the component parameters of coil
(1) number of wire turns is selected:
Voltage is selected when high more, and triple harmonic current is big more, thereby it is good more to cut down former limit triple-frequency harmonics effect; But when voltage is high more, require the coil copper consumption to increase, correspondingly insulation property are required to strengthen, can select to bring for assembly because of difficulty.
(2) electric capacity is selected:
Select operating voltage according to (1), ω is then arranged 3L-1/ ω 3So C=0 is C=1/ ω 2 3L.
Fig. 3 A and 3B are the core structure schematic diagrames according to battery saving arrangement of the present invention, and wherein, Fig. 3 A is the schematic perspective view of core structure, and Fig. 3 B is a floor map.Iron core adopts high-quality silicon steel sheet.Look from the front of Fig. 3 A, the height of core structure integral body * wide * thick 480 * 405 * 104mm that is of a size of, the width of each column structure of iron core is of a size of 65mm, and hollow is of a size of 350 * 105mm.Among Fig. 3 B, the Circularhole diameter at each place, angle is 15mm.
Power saving rate according to battery saving arrangement of the present invention can be calculated as follows:
N=(P1-P2)/P1 wherein, n is a power saving rate; P1 is the active power that electrical network is confessed when not inserting battery saving arrangement; P2 is the active power that electrical network is confessed when inserting battery saving arrangement.
Below be illustrated with reference to the various aspects of accompanying drawing embodiments of the invention.Persons of ordinary skill in the art may appreciate that under the condition of the category that does not break away from spirit of the present invention, can impose multiple improvement and variation, to adapt to concrete design and use requirement parts of the present invention.Protection scope of the present invention is limited by the accompanying Claim book, but not is confined to the described content of embodiment.
Table 1 is listed the data of the various coils of relevant battery saving arrangement of the present invention.
Table 2 is listed the bill of materials according to the battery saving arrangement of different size of the present invention.
Table 3 is listed controlled key components and parts and material.
Table 1 coil data:
Title Line footpath (mm) The number of turn Remarks
????R-r??S-s ????T-t ?????3-2.7×12 ????20 Main magnet exciting coil
????6％ ?????3.8×2.2 ????220 Voltage is adjusted coil
????4％ ?????2.6 ????80
????2％ ?????2.2 ????160
????0％ ?????1.5 ????460
????L1、L2、L3 ?????1.5 ????400 Harmonic wave is eliminated coil
Table 2 bill of materials:
Product type gauge material title specification ????PPS-50 ??PPS-200 ????PPS-1000 ????PPS-2000
Silicon steel sheet ????DQ140-30 ??DQ140-30 ????DQ140-30 ????DQ140-30
The wrapped copper cash of ZBN-0.5 NOMEX paper ????Φ1.3 ??Φ1.3 ????1.5×2.2mm ????2×2.5mm
The wrapped copper cash of ZBN-0.5 NOMEX paper ????1.5×2.2mm ??2×2.5mm ????3.2×7.5mm ????6×16mm
The wrapped copper cash of ZBN-0.5 NOMEX paper ????4×9.8mm ??2.65×4.5mm ????3.15×16mm ????3.15×16mm
The wrapped copper cash of ZBN-0.5 NOMEX paper ??2.5×10mm
Copper bar ????3×30mm ??4×40mm ????10×80mm ????15×100mm
9334 span plates ????1.5mm ??1.5mm ????1.5mm ????1.5mm
341 epoxy resin bonded fibers ????10mm ??10mm ????10mm ????10mm
6650 composite membranes ????0.3mm ??0.3mm ????0.3mm ????0.3mm
Thermometer ????WTQ-280 ????0～200℃ ??WTQ-280 ??0～200℃ ????WTQ-280 ????0～200℃ ????WTQ-280 ????0～200℃
Fire-retardant lead ????ZR-BVR，Φ25 ??ZR-BVR，Φ25 ????ZR-BVR，Φ25 ????ZR-BVR，Φ25
Terminal ????UK-6N ??UK-6N ????UK-16N ????UK-35
Rack ????465×435×720 ??686×600×1068 ????1106×690× ???????1480 ????1206×716× ???????1689
Controlled key components and parts of table 3 and material:
Sequence number Title The trade mark and specifications and models
??1 Silicon steel sheet ????DQ140-30
??2 The wrapped copper cash of ZBN-0.5 NOMEX paper ????1.5×2.2mm
??3 The wrapped copper cash of ZBN-0.5 NOMEX paper ????2×2.5mm
??4 The wrapped copper cash of ZBN-0.5 NOMEX paper ????2.5×10mm
??5 The wrapped copper cash of ZBN-0.5 NOMEX paper ????2.65×4.5mm
??6 The wrapped copper cash of ZBN-0.5 NOMEX paper ????3.15×16mm
??7 The wrapped copper cash of ZBN-0.5 NOMEX paper ????3.2×7.5mm
??8 The wrapped copper cash of ZBN-0.5 NOMEX paper ????4×9.8mm
??9 The wrapped copper cash of ZBN-0.5 NOMEX paper ????6×16mm

Claims (6)

1. a battery saving arrangement is characterized in that, comprising:
Iron core, it comprises three column structures;
Three main magnet exciting coils, they are wound on three column structures of described iron core respectively and are Y-connection;
Three voltages are adjusted coil, each voltage is adjusted coil and described each main magnet exciting coil is wound on respectively on the column structure of same described iron core, the wherein end that each voltage is adjusted coil is connected to it and is wound on the output that corresponding master on the column structure of same described iron core encourages electric coil, and wherein the other end is connected on each adjustable gear short circuit sheet; With
Three harmonic waves are eliminated coil, each harmonic wave is eliminated coil and described each main magnet exciting coil and voltage adjustment coil and is wound on respectively on the column structure of same described iron core, each harmonic wave is eliminated coil and is connected into triangle, and each harmonic wave elimination coil is connected with a capacitor.
2. battery saving arrangement according to claim 1, it is characterized in that, the height of described core structure * wide * thick 480 * 405 * 104mm that is of a size of, the width of each column structure of described iron core is of a size of 65mm, hollow is of a size of 350 * 105mm, and the Circularhole diameter at each place, angle of described iron core is 15mm.
3. battery saving arrangement according to claim 1 and 2 is characterized in that, described each main magnet exciting coil adopts the wrapped copper cash of paper of 3-2.7 * 12mm, and its number of turn is 20 circles.
4. battery saving arrangement according to claim 1 and 2 is characterized in that, described each adjustable gear short circuit sheet comprises the gear short circuit sheet that output voltage is carried out 0%, 2%, 4% and 6% adjustment.
5. battery saving arrangement according to claim 4 is characterized in that, the voltage adjustment for 6%, and described each voltage is adjusted the wrapped copper cash of paper that coil adopts 3.8 * 2.2mm, and the number of turn is 220 circles; Voltage adjustment for 4%, described each voltage is adjusted the wrapped copper cash of paper that coil adopts diameter 2.6mm, and the number of turn is 80 circles; Voltage adjustment for 2%, described each voltage is adjusted the wrapped copper cash of paper that coil adopts diameter 2.2mm, and the number of turn is 160 circles; Voltage adjustment for 0%, described each voltage is adjusted the wrapped copper cash of paper that coil adopts diameter 1.5mm, and the number of turn is 460 circles.
6. battery saving arrangement according to claim 1 and 2 is characterized in that, the capacitance that described each harmonic wave is eliminated the capacitor that coil connected is C=1/ ω 2 3L, wherein ω 3Angular frequency for triple harmonic current.
CNB021066787A 2002-02-26 2002-02-26 Power economizer Expired - Fee Related CN100350710C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNB021066787A CN100350710C (en) 2002-02-26 2002-02-26 Power economizer
HK04101357A HK1058580A1 (en) 2002-02-26 2004-02-25 Energy-saving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB021066787A CN100350710C (en) 2002-02-26 2002-02-26 Power economizer

Publications (2)

Publication Number Publication Date
CN1441525A true CN1441525A (en) 2003-09-10
CN100350710C CN100350710C (en) 2007-11-21

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ID=27768503

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB021066787A Expired - Fee Related CN100350710C (en) 2002-02-26 2002-02-26 Power economizer

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HK (1) HK1058580A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102647092A (en) * 2012-04-19 2012-08-22 北京厚优节电技术有限公司 Voltage regulating device for low voltage side of alternating-current power transmission and transformation
CN103337335A (en) * 2013-07-11 2013-10-02 国家电网公司 Zero-sequence filtering electricity-saving device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2166508Y (en) * 1993-08-21 1994-05-25 朱跃钢 10/6KV autotransformer
US5543771A (en) * 1995-03-03 1996-08-06 Levin; Michael I. Phase shifting transformer or autotransformer
CN2372771Y (en) * 1999-04-26 2000-04-05 罗文周 Distribution electrisity-saving device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102647092A (en) * 2012-04-19 2012-08-22 北京厚优节电技术有限公司 Voltage regulating device for low voltage side of alternating-current power transmission and transformation
CN103337335A (en) * 2013-07-11 2013-10-02 国家电网公司 Zero-sequence filtering electricity-saving device
CN103337335B (en) * 2013-07-11 2016-01-13 国家电网公司 Zero sequence filtering electricity-saving appliance

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Publication number Publication date
HK1058580A1 (en) 2004-05-21
CN100350710C (en) 2007-11-21

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