CN104500335B - A kind of soft braking circuit of wind-driven generator - Google Patents
A kind of soft braking circuit of wind-driven generator Download PDFInfo
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- CN104500335B CN104500335B CN201410699969.2A CN201410699969A CN104500335B CN 104500335 B CN104500335 B CN 104500335B CN 201410699969 A CN201410699969 A CN 201410699969A CN 104500335 B CN104500335 B CN 104500335B
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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
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The present invention provides a kind of soft braking circuit of wind-driven generator, it is characterised in that including thermistor CR1 CR3, metal-oxide-semiconductor Q1 Q3, resistance R1 R8, metal-oxide-semiconductor drive circuit, microprocessor U1.The present invention causes thermistor temp to rise and finally causes blower fan short circuit so as to which its resistance is gradually reduced convergence and zero, then blower fan just enters braking state, and the circuit is simple and reliable using the control signal of single-chip microcomputer output mos pipe after metal-oxide-semiconductor conducting, it is easy to accomplish.
Description
Technical field
The present invention relates to controller technology field, more particularly, to a kind of soft braking circuit of wind-driven generator.
Background technology
With economic development, the mankind are increasing to the demand of the energy, traditional energy reserves increasingly depleted, and traditional fuel
It is a large amount of using being become increasingly conspicuous to the harm that environment for human survival is caused, the development and utilization of regenerative resource is become as current weight
Will and wind energy and solar energy are the energy of most Development volue in urgent problem, clean energy resource, wherein wind energy is a kind of utilization
The device of wind-power electricity generation.The electricity generation system of wind-power electricity generation is main by wind-driven generator, wind power generation controller, the group such as battery
Into.And wind-driven generator circuit is the chief component of wind power generation controller, existing wind power generation controller is main
Braked using following technology such as Fig. 1, braking circuit is by rectifying device D1, D8, D10, D7, D9, D11 and power mos pipes Q1
Composition, its braking principle be the line of blower fan three respectively through after rectifying tube D1, D8, D10 by power mos pipes Q1 short circuits over the ground, by institute
There is energy to introduce ground terminal to be braked.So rectifying device must be born than larger power, due to having on rectifying device during braking
The reason for pressure drop, blower fan is still to slowly run, and at this moment substantially all power will be undertaken by rectifying device and metal-oxide-semiconductor.To whole
Flow device and metal-oxide-semiconductor requires higher, and heating is big.Long-time circuit reliability is reduced.
The content of the invention
The soft braking circuit of wind-driven generator of the present invention, the circuit is easily achieved, and stability is high.
To reach above-mentioned technical purpose, technical scheme is as follows：
A kind of soft braking circuit of wind-driven generator, including thermistor CR1-CR3, metal-oxide-semiconductor Q1-Q3, resistance R1-R8, MOS
Tube drive circuit, microprocessor U1；One end of thermistor CR1 one end, thermistor CR2 one end and thermistor CR3
It is connected respectively with the three of wind-driven generator；The thermistor CR1 other end is connected with metal-oxide-semiconductor Q1 drain electrode, thermistor CR2
The other end be connected with metal-oxide-semiconductor Q2 drain electrode, the thermistor CR3 other end is connected with metal-oxide-semiconductor Q3 drain electrode；Metal-oxide-semiconductor Q1's
Grid is connected with resistance R1 one end and resistance R2 one end respectively, metal-oxide-semiconductor Q2 grid one end respectively with resistance R3 and electricity
The one end for hindering R4 is connected, and metal-oxide-semiconductor Q3 grid is connected with resistance R5 one end and resistance R6 one end respectively；Metal-oxide-semiconductor Q1-Q3's
Source electrode and resistance R2, R4, R6 other end ground connection；Resistance R1, R3 and R5 other end respectively with metal-oxide-semiconductor drive circuit three
The connection of different I/O ports, three different I/O ports of the control of metal-oxide-semiconductor drive circuit and the I/O port of resistance R1, R3 and R5 connection respectively with it is micro-
Processor U1 three difference IO connections；Resistance R7 one end is connected with resistance R8 one end, microprocessor U1 another I/O port with
Tie point between resistance R7 and resistance R8 is connected；The resistance R7 other end is connected with blower voltage output end, and resistance R8's is another
One end is grounded.
Preferably, the metal-oxide-semiconductor Q1-Q3 is N-type metal-oxide-semiconductor.
Preferably, the microprocessor U1 is single-chip microcomputer.
Preferably, the thermistor CR1-CR3 is negative tempperature coefficient thermistor.
In the present invention, the magnitude of voltage of single-chip microcomputer U1 inner settings one, blower fan three-phase wire respectively with thermistor CR1, CR2,
CR3 is contacted, and blower voltage is obtained by resistance R7, R8 partial pressure and compared with single-chip microcomputer U1 inner setting magnitudes of voltage, when blower fan electricity
When pressure is more than setting magnitude of voltage, single-chip microcomputer U1 output control signals control metal-oxide-semiconductor Q1, Q2, Q3 respectively by metal-oxide-semiconductor drive circuit
Conducting, at this moment blower fan three-phase current separately flows into CR1, Q1, CR2, Q2, CR3, Q3.Because metal-oxide-semiconductor Q1, Q2, Q3 resistance are small,
Energy produced by blower fan is undertaken by thermistor CR1, CR2, CR3.Now thermistor gradually heating, as heat heat increases
Plus, thermistor CR1, CR2, CR3 resistance are tapered into, and finally close to 0 ohm, at this moment blower fan enters braking state.Utilize
The principle that thermistor slowly diminishes due to heating resistance, realizes the soft braking of blower fan, circuit is simple and reliable and is able to actual answer
With.
Compared with prior art, the beneficial effect of technical solution of the present invention is：
The present invention using single-chip microcomputer output mos pipe control signal, metal-oxide-semiconductor conducting after cause thermistor temp rise from
And its resistance is gradually reduced convergence and zero and finally causes blower fan short circuit, then blower fan just enters braking state, and the circuit simply may be used
Lean on, it is easy to accomplish.
Brief description of the drawings
Fig. 1 is existing wind power generation controller braking circuit schematic diagram；
Fig. 2 is the circuit theory diagrams of the embodiment of the present invention 1.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；
In order to more preferably illustrate the present embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent actual product
Size；
To those skilled in the art, it is to be appreciated that some known features and its explanation, which may be omitted, in accompanying drawing
's.
Technical scheme is described further with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Fig. 2 a kind of soft braking circuit of wind-driven generator, including thermistor CR1-CR3, metal-oxide-semiconductor Q1-Q3, electricity
Hinder R1-R8, metal-oxide-semiconductor drive circuit, microprocessor U1；Thermistor CR1 one end, thermistor CR2 one end and temperature-sensitive electricity
Resistance CR3 one end is connected with the three of wind-driven generator respectively；The thermistor CR1 other end is connected with metal-oxide-semiconductor Q1 drain electrode,
The thermistor CR2 other end is connected with metal-oxide-semiconductor Q2 drain electrode, the thermistor CR3 other end and metal-oxide-semiconductor Q3 drain electrode phase
Even；Metal-oxide-semiconductor Q1 grid is connected with resistance R1 one end and resistance R2 one end respectively, metal-oxide-semiconductor Q2 grid respectively with resistance
R3 one end is connected with resistance R4 one end, and metal-oxide-semiconductor Q3 grid is connected with resistance R5 one end and resistance R6 one end respectively；
Metal-oxide-semiconductor Q1-Q3 source electrode and resistance R2, R4, R6 other end ground connection；Resistance R1, R3 and R5 other end drive with metal-oxide-semiconductor respectively
Three different I/O port connections of dynamic circuit, metal-oxide-semiconductor drive circuit controls three differences with resistance R1, R3 and R5 I/O port being connected
I/O port IO connections different from three of microprocessor U1 respectively；Resistance R7 one end is connected with resistance R8 one end, microprocessor U1
Another I/O port be connected with the tie point between resistance R7 and resistance R8；The resistance R7 other end and blower voltage output end phase
Even, resistance R8 other end ground connection.
Preferably, the metal-oxide-semiconductor Q1-Q3 is N-type metal-oxide-semiconductor.
Preferably, the microprocessor U1 is single-chip microcomputer.
Preferably, the thermistor CR1-CR3 is negative tempperature coefficient thermistor.
In the present embodiment, the magnitude of voltage of single-chip microcomputer U1 inner settings one, blower fan three-phase wire respectively with thermistor CR1,
CR2, CR3 are contacted, and blower voltage is obtained by resistance R7, R8 partial pressure and compared with single-chip microcomputer U1 inner setting magnitudes of voltage, works as wind
When electromechanics pressure is more than setting magnitude of voltage, the pin output control signals of single-chip microcomputer U1 1,2,3 are controlled respectively by metal-oxide-semiconductor drive circuit
Metal-oxide-semiconductor Q1, Q2, Q3 are turned on, and at this moment blower fan three-phase current separately flows into CR1, Q1, CR2, Q2, CR3, Q3.Due to metal-oxide-semiconductor Q1,
Q2, Q3 resistance are small, and the energy produced by blower fan is undertaken by thermistor CR1, CR2, CR3.Now thermistor gradually heating,
With the increase of heat heat, thermistor CR1, CR2, CR3 resistance are tapered into, finally close to 0 ohm, and at this moment blower fan enters
Braking state.The principle slowly diminished due to heating resistance using thermistor, realizes the soft braking of blower fan, circuit is simple and reliable
And be used practically.
The same or analogous part of same or analogous label correspondence；
Position relationship is used for being given for example only property explanation described in accompanying drawing, it is impossible to be interpreted as the limitation to this patent；
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Any modifications, equivalent substitutions and improvements made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (4)
1. a kind of soft braking circuit of wind-driven generator, it is characterised in that including thermistor CR1-CR3, metal-oxide-semiconductor Q1-Q3, resistance
R1-R8, metal-oxide-semiconductor drive circuit, microprocessor U1；Thermistor CR1 one end, thermistor CR2 one end and thermistor
CR3 one end is connected with the three of wind-driven generator respectively；The thermistor CR1 other end is connected with metal-oxide-semiconductor Q1 drain electrode, heat
The quick resistance CR2 other end is connected with metal-oxide-semiconductor Q2 drain electrode, and the thermistor CR3 other end is connected with metal-oxide-semiconductor Q3 drain electrode；
Metal-oxide-semiconductor Q1 grid is connected with resistance R1 one end and resistance R2 one end respectively, and metal-oxide-semiconductor Q2 grid is respectively with resistance R3's
One end is connected with resistance R4 one end, and metal-oxide-semiconductor Q3 grid is connected with resistance R5 one end and resistance R6 one end respectively；MOS
Pipe Q1-Q3 source electrode and resistance R2, R4, R6 other end ground connection；Resistance R1, R3 and R5 other end drive with metal-oxide-semiconductor respectively
Do not distinguish on the different I/O port connections of three of circuit, metal-oxide-semiconductor drive circuit from three different I/O ports that resistance R1, R3 and R5 are connected
IO connections different from three of microprocessor U1, are not used to control and electricity from three different I/O ports that resistance R1, R3 and R5 are connected
Hinder R1, R3 and three different I/O ports that the R5 other end is connected respectively；Resistance R7 one end is connected with resistance R8 one end, microprocessor
Device U1 another I/O port is connected with the tie point between resistance R7 and resistance R8；The resistance R7 other end and blower voltage output end
It is connected, resistance R8 other end ground connection.
2. the soft braking circuit of wind-driven generator according to claim 1, it is characterised in that the metal-oxide-semiconductor Q1-Q3 is N-type
Metal-oxide-semiconductor.
3. the soft braking circuit of wind-driven generator according to claim 1, it is characterised in that the microprocessor U1 is monolithic
Machine.
4. the soft braking circuit of wind-driven generator according to claim 1, it is characterised in that the thermistor CR1-CR3
It is negative tempperature coefficient thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699969.2A CN104500335B (en) | 2014-11-28 | 2014-11-28 | A kind of soft braking circuit of wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699969.2A CN104500335B (en) | 2014-11-28 | 2014-11-28 | A kind of soft braking circuit of wind-driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104500335A CN104500335A (en) | 2015-04-08 |
| CN104500335B true CN104500335B (en) | 2017-10-13 |
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| CN201410699969.2A Active CN104500335B (en) | 2014-11-28 | 2014-11-28 | A kind of soft braking circuit of wind-driven generator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092213A (en) * | 1992-11-16 | 1994-09-14 | 艾利森电话股份有限公司 | A kind of shortcircuit limiting protector |
| CN2601476Y (en) * | 2003-01-28 | 2004-01-28 | 惠州三华工业有限公司 | Protective circuit of power converter |
| US7952215B2 (en) * | 2007-05-25 | 2011-05-31 | Mitsubishi Heavy Industries, Ltd. | Wind turbine generator, wind turbine generator system, and power generation control method of wind turbine generator |
| CN102769959A (en) * | 2011-05-06 | 2012-11-07 | 海洋王照明科技股份有限公司 | LED light-dimming driving circuit |
| JP5308511B2 (en) * | 2010-11-25 | 2013-10-09 | 三菱重工業株式会社 | Output control method and output control apparatus for wind power generation equipment |
| CN103442504A (en) * | 2013-09-18 | 2013-12-11 | 湘潭大学 | LED (Light Emitting Diode) constant current driving circuit based on PWM (Pulse-Width Modulation) light-adjusting mode |
-
2014
- 2014-11-28 CN CN201410699969.2A patent/CN104500335B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092213A (en) * | 1992-11-16 | 1994-09-14 | 艾利森电话股份有限公司 | A kind of shortcircuit limiting protector |
| CN2601476Y (en) * | 2003-01-28 | 2004-01-28 | 惠州三华工业有限公司 | Protective circuit of power converter |
| US7952215B2 (en) * | 2007-05-25 | 2011-05-31 | Mitsubishi Heavy Industries, Ltd. | Wind turbine generator, wind turbine generator system, and power generation control method of wind turbine generator |
| JP5308511B2 (en) * | 2010-11-25 | 2013-10-09 | 三菱重工業株式会社 | Output control method and output control apparatus for wind power generation equipment |
| CN102769959A (en) * | 2011-05-06 | 2012-11-07 | 海洋王照明科技股份有限公司 | LED light-dimming driving circuit |
| CN103442504A (en) * | 2013-09-18 | 2013-12-11 | 湘潭大学 | LED (Light Emitting Diode) constant current driving circuit based on PWM (Pulse-Width Modulation) light-adjusting mode |
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| CN104500335A (en) | 2015-04-08 |
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Denomination of invention: A Soft Braking Circuit for Wind Turbine Generators Effective date of registration: 20230725 Granted publication date: 20171013 Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Pledgor: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2023980049766 |