CN101594065B - Intelligent secondary controllable contact wind energy absorber - Google Patents
Intelligent secondary controllable contact wind energy absorber Download PDFInfo
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- CN101594065B CN101594065B CN200910012334XA CN200910012334A CN101594065B CN 101594065 B CN101594065 B CN 101594065B CN 200910012334X A CN200910012334X A CN 200910012334XA CN 200910012334 A CN200910012334 A CN 200910012334A CN 101594065 B CN101594065 B CN 101594065B
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 25
- 238000004804 winding Methods 0.000 claims abstract description 32
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000007858 starting material Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 17
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
The invention discloses an intelligent secondary controllable contact wind energy absorber, which comprises a multi-winding output transformer, a plurality of controllable switch components, a rectifier and a gating control box, wherein an output end of the multi-winding output transformer is connected with an output end of an aerogenerator; secondary windings of the multi-winding output transformer are connected with one side of each of main contacts of the corresponding controllable switch components respectively; the other side of each of the main contacts of the controllable switch components is connected with an input end of the rectifier; and a positive pole and a negative pole of an output end of the rectifier are connected with positive poles and negative poles of a storage battery and a direct current load respectively. The absorber can change storage paths of wind energy according to the magnitude of the basic wind velocity to ensure that the direct current output voltage in a rectification link meets charging requirement within wide wind velocity range, make the storage battery always in a charging state, ensure that most of effective wind energy absorbed by blades of a fan can be received and stored, and improve the utilization efficiency of the system of the aerogenerator; and the absorber has the advantages of simple structure, easy realization, small volume, low cost and convenient popularization.
Description
Technical field
The present invention relates to wind power generation field, particularly a kind of intelligent secondary controllable contact wind energy absorber.
Background technology
At present, mostly visible big-and-middle-sized (more than hundred KW) wind generator system is grid-connected system, the general independent operating of middle-size and small-size wind generator system on the domestic and international market.In wind generator system; Because the wind-force size all became in the time period of any length; The power that blower fan absorbed and exported (energy) is an amount that changes constantly, and therefore, the frequency of the voltage of wind-driven generator output port (referring to closed circuit voltage) and amplitude all are the amounts that constantly change.Therefore its output is difficult to directly band constant load.The energy of in practicality, generally wind-driven generator being exported carries out rectification, goes into storage battery to the pulsating direct current energy storage after the rectification again, and DC load is directly by storage battery power supply, and AC load is then supplied power through inverter by storage battery.The standard of Here it is present middle-size and small-size wind generator system supplies to use power mode.In this general pattern, modal drawback is that power coefficient is little, and available wind speed range is very narrow.The high speed wind energy obtains utilizing then that low velocity wind energy is wasted, and low velocity wind energy is utilized then that the high speed wind energy must some be wasted.Particularly middle low velocity wind energy is wasted phenomenon very seriously, to such an extent as to can not receive the Expected Results of wind power generation.Although the technology that improves commutating voltage through the DC/DC power supply is arranged in the practicality, because there are intermediate links such as rectification, inversion in its inside, there is the big zone of restriction energy input in its range of regulation, so efficient is not high, so application example is not a lot.Exhausted big manifold instance is as shown in Figure 1.
In " Fig. 1 " instance, wind-driven generator output voltage nominal value is 48V; Rectifier input AC pulsation three-phase voltage is about 48-50V (line voltage) under rated wind speed (7-8 level); Rectification output direct current is about 64.5-67.5V, and being recharged battery voltage is 5 * 12=60V.Have only when wind-force is the 7-8 level wind speed left and right sides, rectifier output closed circuit voltage could make battery be in the state of being recharged a little more than battery pack terminal voltage (60V), and wind energy can be stored among battery pack E and the capacitor C through rectifier at any time.When wind-force is 6 grades and when following, the closed circuit pulsation terminal voltage of generator will be lower than 47V, and rectifier output this moment dc terminal voltage will be lower than 63V, do little charging can only for this moment the battery pack of power shortage.When wind-force is 5 grades and when following, the rectifier DC output voltage will be lower than 55V, and wind-force is below 4 grades the time; DC side output meeting lower (below the 45V) is equal to or less than at VD under the situation of battery pack terminal voltage, and wind energy can't charge a battery; Be that wind energy can't be stored in the battery; Certainly also can't supply the load or the device of 60V and above electric pressure to use, therefore, the wind-driven generator of this moment performs practically no function.Wind energy all is consumed in the wearing and tearing of mechanical system and flies to change in the wearing and tearing campaign with wind-force; Not only wasted hands-down wind energy; Also put wind-driven generator among the danger that destructiveness flies to change; Or make in the speed limit process that is in energy-consumption braking that generator do not stop, even do not cause the wind-driven generator fault, also can reduce generator useful life greatly.
Summary of the invention
The objective of the invention is to overcome above-mentioned not enough problem; A kind of intelligent secondary controllable contact wind energy absorber is provided; Thereby can change the wind energy store path according to the size of basic wind speed makes the VD of rectification link can in wide wind speed range, satisfy the charging demand; Make the storage battery of wind powered generator system be in charged state all the time; The most available wind energies that promptly guarantee fan blade and absorbed can be received and store, thereby improve system's utilization ratio of wind-driven generator.Sort circuit and apparatus structure are simple, realization is easy, volume is little, cost is low, are convenient to promote.
The present invention for realizing the technical scheme that above-mentioned purpose adopted is: a kind of intelligent secondary controllable contact wind energy absorber is provided.Said intelligent secondary controllable contact wind energy absorber comprises: many windings output transformer, multichannel controllable switch components, rectifier and gating control box; The input of many windings output transformer and wind-driven generator output join; Each secondary winding of many windings output transformer is connected with one of corresponding controllable switch components main contacts side respectively; The opposite side of each controllable switch components contact connects the rectifier input; The output positive and negative charge of rectifier is connected with the both positive and negative polarity of accumulator anode and cathode and DC load respectively; The former edge joint of many windings output transformer has the three-phase voltage detecting instrument of band warning contact, and said three-phase voltage detecting instrument output connects the gating control box; The multi-thread output of said gating control box connects each controllable switch components coil.
According to intelligent secondary controllable contact wind energy absorber one optimal technical scheme of the present invention be: said three-phase voltage detecting instrument adopts the voltmeter of voltage changer, voltage transformer or band limit output contact.
According to intelligent secondary controllable contact wind energy absorber one optimal technical scheme of the present invention be: the secondary of said many windings output transformer is many winding outputs, adopts the special or common power transformer of aluminium core, copper core of power frequency or low frequency.
According to intelligent secondary controllable contact wind energy absorber one optimal technical scheme of the present invention be: said rectifier is any of controllable silicon, diode, triode, IGBT or IPM power electronic device or module.
According to intelligent secondary controllable contact wind energy absorber one optimal technical scheme of the present invention be: said gating switch box is to have calculating, compare and control the single-chip microcomputer of output function or Based Intelligent Control instrument or the equipment of industrial computer or computer or PLC.
According to intelligent secondary controllable contact wind energy absorber one optimal technical scheme of the present invention be: said controllable switch components is relay, contactor, starter, realization is manual or any of automatic on-off switch device.
The beneficial technical effects of intelligent secondary controllable contact wind energy absorber of the present invention is: through installing wind generator system of the present invention additional, and when actual wind speed during near the rated wind speed scope, the direct rectification of original edge voltage; When actual wind speed departs from the rated wind speed scope, rectification after process secondary corresponding windings is boosted; Promptly widened the scope of wind speed capable of using, improved the usage factor of wind-driven generator, avoided wind-driven generator again, put into practice that proving effect is splendid because of the unloaded harm that flies to change.
Description of drawings
Fig. 1 is the basic circuit diagram that the small wind of prior art is sent out accumulating system energy absorption, conversion, storage and conveying;
Fig. 2 is the basic circuit diagram that the small wind that intelligent secondary controllable contact wind energy absorber is housed of the present invention is sent out accumulating system energy absorption, conversion, storage and conveying;
Fig. 3 is the basic circuit diagram that the small wind that intelligent secondary controllable contact wind energy absorber is housed of the embodiment of the invention is sent out accumulating system energy absorption, conversion, storage and conveying.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Please with reference to Fig. 2; Between wind-driven generator output and storage battery, set up a cover " intelligent secondary controllable contact wind energy absorber ", by the power transformer (hereinafter to be referred as " transformer ") of winding more than (secondary) output, (each switches set is made up of switch coil and switch main contacts one group of multiloop three-phase alternating current switches set.Hereinafter to be referred as " switches set "), one group of three-phase controlled rectifier (hereinafter to be referred as " rectifier "), an intelligent gating control box (hereinafter to be referred as " control box ") and one group of voltage monitoring instrument (hereinafter to be referred as " voltmeter ") form (see figure 2).The former limit of transformer winding (list) joins with the wind-driven generator output line, and each winding of secondary connects one group of three-phase alternating current gate-controlled switch main contacts (hereinafter to be referred as switch " switch main contacts "), and the other end of switch main contacts all is connected to the controlled rectifier input.Rectifier output both positive and negative polarity joins with the both positive and negative polarity of storage battery and load respectively.The switch main contacts is controlled by the switch coil, and the switches set coil is connected with the control box output, controlled box control, and the detecting instrument of the former limit of control box input and transformer winding joins.By the break-make of control box according to each switches set of line voltage (being wind speed) value control of generator output, i.e. whether controlled box is controlled in the output of each winding of transformer secondary.When wind speed during more than or equal to rated wind speed, transformer works in direct transmission energy state, former limit three-phase line directly through the corresponding switch group directly by rectification.When wind speed during less than rated wind speed, transformer works in the transmission energy state that boosts, and wind energy provides rectifier power source through the former limit of transformer, secondary step-up coil and corresponding switch group to rectifier.
Said transformer is the power transformer with polytropic ratio output, and its secondary coil is many groups, and every group of coil turn is different to the turn ratio of primary coil, thereby guarantees that different secondary windings can obtain the secondary voltage of different value under same primary coil voltage.
Said switches set is meant can be by break-make class control device such as relay manual or control automatically, contactor, starters.
Said rectifier group is a modern power electronic class noncontacting switch, means power electronics class device or modules (comprising GTR, GTO, P-MOSFET, IGCT etc.) such as controllable silicon or diode or triode or IGBT or IPM.
Described intelligent gating control box is single-chip microcomputer or Based Intelligent Control quasi-instrument or the equipment such as industrial computer or computer or PLC that have calculating, compare and control output function.
Detection that said voltage detecting instrument is a voltage signal and conversion instrument mean voltage transmitter, voltage transformer, have the voltage detecting of limit output contact or monitor a type instrument.
Please with reference to Fig. 3: the present invention's one specific embodiment is: the power transformer secondary that wind-force is sent out in the accumulating system is 4 groups of windings, and its transformation ratio with respect to former limit is respectively 1/1 (straight-through group), 1/1.25 (B2 group), 1/1.5 (B3 group) and 1/1.75 (B4 group).The switch main contacts that each group is identical with numbering respectively connects.The battery tension that the centre is recharged is 2 * 12v=24v.The light fixture loaded work piece voltage that is connected to storage battery is 24v.
Wind-driven generator when work, by the gating control box according to survey the size of magnitude of voltage of blower fan output, control one group of switch main contacts and be in closure state, the rest switch main contacts is in off-state.Be that blower fan work the time has only one group of winding to inject energy and power to the load to battery through rectifier, other windings all are in unloaded no-output state.For example, when wind-force during in the rated wind speed scope, control box control " K1 " switch contact is closed and other switch contact breaks off, and the rechargeable energy that storage battery obtains is directly from generator output end; When wind speed was lower than rated wind speed and causes the blower fan output end voltage to be lower than 20v, " K2 " switch main contacts was closed and other switch main contactss are disconnected, and the rechargeable energy that storage battery obtains is from the output of winding " B2 "; Again little when wind speed, " K3 " switch main contacts was by gating and other switch main contactss are disconnected when the blower fan output end voltage was lower than 16.3v, the rechargeable energy that storage battery obtains is from the output of winding " B3 " group; In like manner, littler when wind speed, when the blower fan output end voltage is lower than 14v, " K4 " switch main contacts is by gating, and the rechargeable energy that this moment, storage battery obtained is from the output of winding " B4 ".Obviously, classification of transformer secondary winding and controlled rectification cooperate, and can guarantee that effective wind speed obtains the fullest utilization.
Transformer primary coil in the system is in closure all the time and has the state of no-load loss, so the blower fan output false voltage can not occur, thereby is the blower fan output end voltage reliable as the physical signalling of judging the wind speed size.
Above content is to combine concrete optimal technical scheme to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (6)
1. intelligent secondary controllable contact wind energy absorber, it is characterized in that: said intelligent secondary controllable contact wind energy absorber comprises: many windings output transformer, multichannel controllable switch components, rectifier and gating control box; The input of many windings output transformer and wind-driven generator output join; Each secondary winding of many windings output transformer is connected with one of corresponding controllable switch components main contacts side respectively; The opposite side of each controllable switch components contact connects the rectifier input; The output positive and negative charge of rectifier is connected with the both positive and negative polarity of accumulator anode and cathode and DC load respectively; The former edge joint of many windings output transformer has the three-phase voltage detecting instrument of band warning contact, and said three-phase voltage detecting instrument output connects the gating control box; The multi-thread output of said gating control box connects each controllable switch components coil.
2. intelligent secondary controllable contact wind energy absorber according to claim 1 is characterized in that: said three-phase voltage detecting instrument is the voltmeter of voltage changer, voltage transformer or band limit output contact.
3. intelligent secondary controllable contact wind energy absorber according to claim 1 is characterized in that: the secondary of said many windings output transformer is many winding outputs, adopts the special or common power transformer of aluminium core, copper core of power frequency or low frequency.
4. intelligent secondary controllable contact wind energy absorber according to claim 1 is characterized in that: said rectifier is any of controllable silicon, diode, triode, IGBT or IPM power electronic device or module.
5. intelligent secondary controllable contact wind energy absorber according to claim 1 is characterized in that: said gating control box is Based Intelligent Control instrument or the equipment that has calculating, compares and control single-chip microcomputer, industrial computer, computer or the PLC of output function.
6. intelligent secondary controllable contact wind energy absorber according to claim 1 is characterized in that: said controllable switch components is relay, contactor, starter, realization is manual or any of automatic on-off switch device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910012334XA CN101594065B (en) | 2009-07-01 | 2009-07-01 | Intelligent secondary controllable contact wind energy absorber |
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| CN200910012334XA CN101594065B (en) | 2009-07-01 | 2009-07-01 | Intelligent secondary controllable contact wind energy absorber |
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| CN101594065B true CN101594065B (en) | 2012-05-09 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102611324A (en) * | 2011-01-25 | 2012-07-25 | 陈建华 | Device for controlling unstable power distribution system |
| CN105006875A (en) * | 2015-05-14 | 2015-10-28 | 浙江风生节能科技有限公司 | Power supply circuit of fan blower controller |
| CN106253478B (en) * | 2016-08-27 | 2018-12-18 | 国网山东省电力公司招远市供电公司 | A kind of wind tower power Transmission remote control equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2275916Y (en) * | 1995-06-16 | 1998-03-11 | 临沂电焊机研究中心 | Welded-contact charging multiple-purpose machine |
| JP2001037228A (en) * | 1999-07-19 | 2001-02-09 | Kawamura Electric Inc | Voltage control apparatus |
| JP2008187783A (en) * | 2007-01-29 | 2008-08-14 | Toyo Electric Mfg Co Ltd | Method of connecting system-interconnected inverter to wind power generator |
-
2009
- 2009-07-01 CN CN200910012334XA patent/CN101594065B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2275916Y (en) * | 1995-06-16 | 1998-03-11 | 临沂电焊机研究中心 | Welded-contact charging multiple-purpose machine |
| JP2001037228A (en) * | 1999-07-19 | 2001-02-09 | Kawamura Electric Inc | Voltage control apparatus |
| JP2008187783A (en) * | 2007-01-29 | 2008-08-14 | Toyo Electric Mfg Co Ltd | Method of connecting system-interconnected inverter to wind power generator |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dalian state tiger emergency power supply Group Co., Ltd. Assignor: Sun Yibiao Contract fulfillment period: 2009.8.12 to 2014.8.12 contract change Contract record no.: 2009210000288 Denomination of invention: Intelligent secondary controllable contact wind energy absorber License type: Exclusive license Record date: 2009.12.7 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.8.12 TO 2014.8.12; CHANGE OF CONTRACT Name of requester: DALIAN GUOBIAO EMERGENCY POWER SUPPLY GROUP CO., L Effective date: 20091207 |
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Owner name: BASIC INTELLIGENCE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SUN YIBIAO Effective date: 20131017 |
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Effective date of registration: 20131017 Address after: 301800 No. 2, Xingan Road, nine Garden Industrial Park, Baodi District, Tianjin Patentee after: Bai Cheng Technology Co., Ltd. Address before: 116039 Liaoning Province, Dalian City Development Zone in Dalian Tianhong xinzhaizi Biao emergency power supply Group Co. Ltd. Patentee before: Sun Yibiao |