CN106100104A - A kind of Wind turbines back-up source - Google Patents
A kind of Wind turbines back-up source Download PDFInfo
- Publication number
- CN106100104A CN106100104A CN201610456616.9A CN201610456616A CN106100104A CN 106100104 A CN106100104 A CN 106100104A CN 201610456616 A CN201610456616 A CN 201610456616A CN 106100104 A CN106100104 A CN 106100104A
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- CN
- China
- Prior art keywords
- unit
- resistance
- wind turbines
- source
- secondary battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002253 acid Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H02J7/0026—
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
-
- 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
Abstract
The invention discloses a kind of Wind turbines back-up source, including secondary battery unit, three-phase commutation bridge, charhing unit and discharge cell, described secondary battery unit is connected with Wind turbines dc bus by three-phase commutation bridge, the input of described charhing unit is connected with dc bus, and the outfan of described charhing unit is connected with secondary battery unit and discharge cell respectively；Described charhing unit includes trickle charge loop and fills loop soon.The Wind turbines back-up source of the present invention has simple in construction, the advantage such as safe and reliable.
Description
Technical field
The invention mainly relates to technical field of wind power generation, refer in particular to a kind of Wind turbines back-up source.
Background technology
Back-up source, the i.e. generally secondary cell described in people, be that one effectively prevents electrical equipment at the most normal electricity
The there won't be any problem power supply of a kind of automatic driving during pressure, for ensureing the power supply that electrical equipment can normally work.In recent years, back-up source
It is widely used in the fields such as communication, finance, government, medical treatment, Industry Control, the energy, solves the power-off of electric power, voltage pulsation etc.
Problem, makes system run the most safe and reliable stable.Whether lead-acid battery, or high performance lithium ion battery, using
Be afraid of most in journey is exactly overcharge and overdischarge.Once overcharge, overdischarge, battery will damage, capacity reduce, the life-span reduce.
Under serious conditions, it also occur that explosion and catching fire.The voltage of battery, capacity, internal resistance and self-discharge rate, different temperatures,
Under the service condition of different charge-discharge magnifications, it is each discrepant.Battery charging and discharging is not had by conventional solution
The control of effect, is not the most effectively protected battery simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is that the technical problem existed for prior art, and the present invention provides one
Plant simple in construction, the Wind turbines back-up source of safety and stability.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes is:
A kind of Wind turbines back-up source, including secondary battery unit, three-phase commutation bridge, charhing unit and discharge cell, described storage
Battery unit is connected with Wind turbines dc bus by three-phase commutation bridge, the input of described charhing unit and dc bus phase
Even, the outfan of described charhing unit is connected with secondary battery unit and discharge cell respectively；Described charhing unit includes that trickle charge is returned
Road and fill loop soon.
Further improvement as technique scheme:
Described secondary battery unit connects heating unit, is used for maintaining secondary battery unit in preset temperature threshold value.
The first switch, the first resistance unit and the second resistance unit that described charhing unit includes being serially connected, described the
Being parallel with second switch on two resistance units, described trickle charge loop includes the first switch, the first resistance unit and the second resistance list
The loop that unit's series connection is formed；Described loop of filling soon includes returning of the first switch, the first resistance unit and second switch series connection formation
Road.
Described secondary battery unit connects has voltage measurement unit, described voltage measurement unit to include interface modular converter, many
Individual the first resistance being serially connected and multiple the second resistance being serially connected, multiple first resistance are mutually gone here and there with multiple second resistance
Connection, described interface modular converter and multiple first resistant series, and with multiple second resistor coupled in parallel.
The resistance of described first resistance is 4.7k Ω, and quantity is four, and the resistance of described second resistance is 220 k Ω, number
Amount is two.
Described secondary battery unit includes that more piece lead-acid battery, more piece lead-acid battery are sequentially connected in series.
Described lead-acid battery is 12V lead-acid battery, and quantity is 30 joints.
Compared with prior art, it is an advantage of the current invention that:
The Wind turbines back-up source of the present invention, connects secondary battery unit by three-phase commutation bridge and Wind turbines supplying DC is female
Line, it is possible to realize electrical network and secondary battery unit power between no-delay and impact switching；Charge circuit includes that trickle charge loop is with fast
Fill loop, it is possible to charging process is controlled, it is achieved safe charging.
Accompanying drawing explanation
Fig. 1 is the frame structure schematic diagram of the present invention.
Fig. 2 is the circuit theory diagrams of the present invention.
In figure, label represents: 1, secondary battery unit；2, charhing unit；3, discharge cell；4, heating unit；5, voltage measurement
Unit；6, power unit；7, three-phase commutation bridge.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As depicted in figs. 1 and 2, the Wind turbines back-up source of the present embodiment, including secondary battery unit 1, three-phase commutation bridge 7
(V2), charhing unit 2 and discharge cell 3, secondary battery unit 1 is connected with Wind turbines dc bus by three-phase commutation bridge 7, fills
The input of electric unit 2 is connected with dc bus, the outfan of charhing unit 2 respectively with secondary battery unit 1 and discharge cell 3 phase
Even；Charhing unit 2 includes trickle charge loop and fills loop soon.The Wind turbines back-up source of the present invention, by three-phase commutation bridge 7 even
Connecing secondary battery unit 1 and Wind turbines supplying DC bus, wherein the effect of three-phase commutation bridge 7 is similar to diode, positive guide
Logical, reflective stopping.When civil power power down, three-phase commutation bridge 7 forward conduction, secondary battery unit 1 provides unidirectional current to dc bus；
When city power recovery, three-phase commutation bridge 7 reversely ends, and now secondary battery unit 1 does not provides unidirectional current to dc bus, due to three
Can reach nanoscale the switching time of commutating phase bridge 7, therefore can effectively realize between electrical network and secondary battery unit 1 power supply no-delay
With impact switching；Charge circuit includes trickle charge loop and fills loop soon, it is possible to be controlled charging process, it is achieved safety is filled
Electricity.
In the present embodiment, secondary battery unit 1 includes that 30 joint 12V lead-acid batteries, 30 joint 12V lead-acid batteries are sequentially connected in series, always
Voltage is 360DC.Lead-acid battery is installed in battery rack；Additionally secondary battery unit 1 connects heating unit 4, heating unit 4
Including two pieces of battery rack heating plates, a PT100 sensor and relay K 5, in sensor is arranged on battery rack and will examine in real time
Testing temperature transmission is to master control system, and when detecting temperature less than 5 DEG C, master control system provides corresponding instruction, and relay K 5 closes,
Battery rack starts heating, and when temperature is more than 10 DEG C, relay K 5 disconnects, and stops heating.Heating unit 4 is used for maintaining accumulator
Unit 1, in preset temperature threshold value, makes back-up source be maintained in a relatively suitable environment, still has good when extraneous low temperature
Good activity.
In the present embodiment, the first switch K2 that charhing unit 2 includes being serially connected, the first resistance unit (include R1 and R2,
220 Ω noninductive resistances) and the second resistance unit (including R5 and R6,1K Ω noninductive resistance), the second resistance unit is parallel with
Two switch K3, trickle charge loop includes the loop that the first switch, the first resistance unit and the series connection of the second resistance unit are formed；Fill back soon
Road includes the loop that the first switch, the first resistance unit and second switch series connection are formed.When catalyst K2 closes, and K3 disconnects,
Noninductive resistance R1, R2, R5, R6 access charge circuit, and accumulator is carried out trickle charge；When catalyst K2 closes, during K3 Guan Bi, noninductive
Resistance R1, R2 access charge circuit, fill accumulator soon.
In the present embodiment, discharge cell 3 includes catalyst K1,2 100 Ω/200W power resistor R3, R4.Accumulator is surveyed
Ping three tests and judge battery performance.
First: when catalyst K2, K3 disconnect, catalyst K1 Guan Bi time, power resistor R3, R4, noninductive resistance R1, R2, R5,
R6 accesses discharge loop, and now secondary battery unit 1 carries out little load discharge test；
Second: when catalyst K2 disconnects, during catalyst K1, K3 Guan Bi, power resistor R3, R4, noninductive resistance R1, R2 access to be put
Electricity loop, now secondary battery unit 1 carries out heavy load discharge test；
3rd: when catalyst K2, K3 disconnect, during catalyst K1 Guan Bi, power resistor R3, R4, noninductive resistance R1, R2, R5, R6 connect
Entering discharge loop, now secondary battery unit 1 carries out little load discharge test；
Corresponding multilevel iudge battery performance is carried out by above three test gained voltages.
In the present embodiment, in the present embodiment, secondary battery unit 1 connects has voltage measurement unit 5, voltage measurement unit 5 to wrap
Include interface modular converter, four the first resistance being serially connected (4.7k Ω) and two the second resistance (220 k being serially connected
Ω), four the first resistance and two the second resistance are serially connected, interface modular converter and multiple first resistant series, and with many
Individual second resistor coupled in parallel.By dividing potential drop and the effect of interface modular converter of resistance, the voltage (digital quantity) measured is converted into
Analog quantity is transmitted.
In the present embodiment, power unit 6 includes Siemens power supply T2, electricity for variable pitch, electricity consumption of going off course.Siemens power supply T2 will
DC(300-700V) it is converted into DC24V, for master control system, anemobiagraph, lubricating system etc..Under normal circumstances, electrical network also leads to
Cross a three-phase commutation bridge (V1) to be connected with dc bus, for the three-phase alternating current (3～400 AC) of electrical network is carried out rectification
Rear output is to dc bus (560VDC).
Compared to traditional back-up source, the Wind turbines back-up source capacity of the present invention is big, can give simultaneously become oar system
System, yaw system, master control system, lubricating system etc. are as back-up source.When electric network power-fail fault occurs in Wind turbines, still may be used
It is monitored so that blower fan is carried out corresponding data, it is ensured that the safety of unit.The additionally back-up source low cost of the present invention, discharge and recharge
Loop structure is simple, it is to avoid the instability problem that traditional charging and discharging circuit structure complexity is brought.
Below being only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention, should be regarded as the protection of the present invention
Scope.
Claims (7)
1. a Wind turbines back-up source, it is characterised in that include secondary battery unit (1), three-phase commutation bridge (7), charging list
Unit (2) and discharge cell (3), described secondary battery unit (1) is connected with Wind turbines dc bus by three-phase commutation bridge (7),
The input of described charhing unit (2) is connected with dc bus, the outfan of described charhing unit (2) respectively with secondary battery unit
(1) it is connected with discharge cell (3)；Described charhing unit (2) includes trickle charge loop and fills loop soon.
Wind turbines back-up source the most according to claim 1, it is characterised in that described secondary battery unit (1) connects to be had
Heating unit (4), is used for maintaining secondary battery unit (1) in preset temperature threshold value.
Wind turbines back-up source the most according to claim 1, it is characterised in that described charhing unit (2) includes mutually
First switch, the first resistance unit and second resistance unit of series connection, described second resistance unit is parallel with second switch, institute
State the loop that trickle charge loop includes that the first switch, the first resistance unit and the series connection of the second resistance unit are formed；Described fill loop soon
The loop formed including the series connection of the first switch, the first resistance unit and second switch.
Wind turbines back-up source the most as claimed in any of claims 1 to 3, it is characterised in that described accumulator
Unit (1) connects has voltage measurement unit (5), described voltage measurement unit (5) to include interface modular converter, multiple be serially connected
The first resistance and multiple the second resistance being serially connected, multiple first resistance are serially connected with multiple second resistance, described in connect
Mouthful modular converter and multiple first resistant series, and with multiple second resistor coupled in parallel.
Wind turbines back-up source the most according to claim 4, it is characterised in that the resistance of described first resistance is 4.7k
Ω, quantity is four, and the resistance of described second resistance is 220 k Ω, and quantity is two.
Wind turbines back-up source the most as claimed in any of claims 1 to 3, it is characterised in that described accumulator
Unit (1) includes that more piece lead-acid battery, more piece lead-acid battery are sequentially connected in series.
Wind turbines back-up source the most according to claim 6, it is characterised in that described lead-acid battery is 12V plumbic acid electricity
Pond, quantity is 30 joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610456616.9A CN106100104A (en) | 2016-06-22 | 2016-06-22 | A kind of Wind turbines back-up source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610456616.9A CN106100104A (en) | 2016-06-22 | 2016-06-22 | A kind of Wind turbines back-up source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106100104A true CN106100104A (en) | 2016-11-09 |
Family
ID=57238750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610456616.9A Pending CN106100104A (en) | 2016-06-22 | 2016-06-22 | A kind of Wind turbines back-up source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106100104A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800190A (en) * | 2017-10-23 | 2018-03-13 | 新疆金风科技股份有限公司 | Wind power generating set backup power supply system and its control method |
| CN111293895A (en) * | 2020-03-19 | 2020-06-16 | 深圳市艾克瑞电气有限公司 | Electric energy conversion circuit and power supply system |
-
2016
- 2016-06-22 CN CN201610456616.9A patent/CN106100104A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800190A (en) * | 2017-10-23 | 2018-03-13 | 新疆金风科技股份有限公司 | Wind power generating set backup power supply system and its control method |
| CN111293895A (en) * | 2020-03-19 | 2020-06-16 | 深圳市艾克瑞电气有限公司 | Electric energy conversion circuit and power supply system |
| CN111293895B (en) * | 2020-03-19 | 2021-07-09 | 深圳市艾克瑞电气有限公司 | Electric energy conversion circuit and power supply system |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20161109 |