CN214281015U - Alternating current-direct current variable pitch backup power supply system compatible with lead-acid storage battery and super capacitor - Google Patents
Alternating current-direct current variable pitch backup power supply system compatible with lead-acid storage battery and super capacitor Download PDFInfo
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- CN214281015U CN214281015U CN202023091484.5U CN202023091484U CN214281015U CN 214281015 U CN214281015 U CN 214281015U CN 202023091484 U CN202023091484 U CN 202023091484U CN 214281015 U CN214281015 U CN 214281015U
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- power supply
- backup power
- variable pitch
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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
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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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Abstract
The utility model discloses a compatible lead acid battery becomes oar back-up power supply system with ultracapacitor system's alternating current-direct current, include: become oar switch board, become oar motor, back-up power supply cabinet and connect the heavy load cable within a definite time, it contains to become the oar switch board: the system comprises a power grid main power supply, a 24VDC power supply, a variable pitch PLC, an input and output control expansion module, a field bus communication expansion module, a backup power supply maintenance operation switch, a variable pitch driver, a motor band-type brake power supply, a backup power supply voltage monitoring module and a backup power supply charger. The utility model discloses a design is used the backup power module that the mutual compatible by lead acid battery or super capacitor of mounting dimension constitutes, can realize that the module that belongs to two kinds of types with grade voltage is in the arbitrary switching of becoming oar backup power cabinet, satisfies customer's various requirements, can use capacious, low cost's lead acid battery, also can switch long service life, the stronger super capacitor of ambient temperature adaptability.
Description
Technical Field
The utility model relates to a wind power generation technical field especially relates to compatible lead acid battery and super capacitor's alternating current-direct current becomes oar reserve electrical power generating system.
Background
A pitch system is commonly used in wind power generation, and the pitch system mostly uses a lead-acid storage battery as a backup power supply, because the service life of the lead-acid battery is quickly attenuated, the lead-acid battery needs to be replaced once in a two-year period, and the requirement of the storage battery on the working environment is extremely strict, and the field operating environment of a wind turbine cannot completely meet the constant temperature condition, so that the reliability of the storage battery is poor; the novel super capacitor technology can solve the disadvantages of the storage battery, has the advantages of long service life, strong temperature adaptability, high power density and high reliability, and becomes the choice for replacing a backup power supply of the lead-acid storage battery.
However, the existing variable pitch system has a certain problem in design compatibility, the super capacitor module cannot be installed in the existing cabinet body, and the modules with the same level of voltage belonging to two types cannot be switched randomly in the variable pitch backup power supply cabinet, so that an alternating current-direct current variable pitch backup power supply system compatible with a lead-acid storage battery and the super capacitor needs to be designed urgently to solve the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of the prior art that the design compatibility of the prior pitch system is certain, the super capacitor module can not be arranged in the prior cabinet body, and the random switching of the modules with the same level voltage belonging to two types in the variable pitch backup power cabinet can not be realized, and the alternating current-direct current variable pitch backup power system compatible with the lead-acid storage battery and the super capacitor is provided, the advantages that the backup power module which is mutually compatible in installation size and consists of the lead-acid storage battery or the super capacitor is designed and applied, so that the super capacitor module is installed in the existing cabinet body, can realize the random switching of two types of modules with the same level voltage in the variable-pitch backup power supply cabinet, meet the various requirements of customers, the lead-acid storage battery with large capacity and low cost can be used, and the super capacitor with long service life and stronger environmental temperature adaptability can be switched.
In order to achieve the above purpose, the utility model provides a following technical scheme:
compatible lead acid battery and super capacitor's alternating current-direct current becomes oar back-up power system includes: become oar switch board, become oar motor, back-up power supply cabinet and connect the heavy load cable within a definite time, it contains to become the oar switch board: the power system comprises a power grid main power supply, a 24VDC power supply, a variable pitch PLC controller, an input and output control extension module, a field bus communication extension module, a backup power supply maintenance operation switch, a variable pitch driver, a motor band-type brake power supply, a backup power supply voltage monitoring module and a backup power supply charger, wherein the power grid main power supply is respectively and electrically connected with the variable pitch driver, the 24VDC power supply, the motor band-type brake power supply and the backup power supply charger through leads, the 24VDC power supply is electrically connected with the variable pitch PLC controller through leads, the motor band-type brake power supply is electrically connected with the variable pitch motor band-type brake through leads, the variable pitch PLC controller is respectively and electrically connected with the input and output control extension module and the field bus communication extension module through leads, the field bus communication extension module is electrically connected with the variable pitch driver through leads, and the variable pitch motor is electrically connected through leads, input/output control extension module maintains through wire electric connection between operating switch, motor band-type brake power, reserve power voltage monitoring module and the reserve power charger with the reserve power respectively, the reserve power charger has a plurality of reserve power modules through wire electric connection, and the reserve power module establishes ties and parallelly connected mode through the unit of two kinds of forms of lead-acid battery or super capacitor is constituteed, the reserve power module respectively with 24VDC power, motor band-type brake power and become through wire electric connection between the oar driver, the reserve power module is located inside the reserve power cabinet.
Preferably, the backup power cabinet comprises: the temperature control system comprises heat preservation foam, a PT100 temperature sensor, a heater, a fan, a vent valve and a cable connecting terminal row, wherein a backup power cable is electrically connected between a backup power cabinet and a variable pitch control cabinet through a lead, and a control cabinet side heavy-duty connector and a backup power cabinet side heavy-duty connector are respectively electrically connected to two sides of the backup power cable through leads.
Preferably, the backup power module is electrically connected with the PT100 temperature sensor through a wire.
Preferably, the heater is electrically connected with the fan through a conducting wire, and the fan is electrically connected with the heat preservation foam through a conducting wire.
Preferably, the outer wall of the top of the backup power supply cabinet is connected with a ventilation valve through a bolt.
Preferably, the cable connection terminal row is composed of several terminal cards.
The utility model has the advantages that:
1. this alternating current-direct current becomes oar back-up power supply system, through the design and application installation size mutually compatible back-up power module that comprises lead acid battery or super capacitor, can realize that the same grade voltage belongs to the arbitrary switching of two kinds of module in becoming oar back-up power cabinet, satisfies customer's various requirements, can use the lead acid battery of capacious, low cost, also can switch long service life, super capacitor that ambient temperature adaptability is stronger.
2. This alternating current-direct current becomes oar back-up power supply system through adopting the back-up power supply charger of compatible super capacitor and battery charging function, can realize satisfying the charge management of two kinds of back-up power supply module simultaneously, can intelligent detection and automatic switch-over charge strategy based on the back-up power supply module characteristic of difference.
3. This alternating current-direct current becomes oar back-up power supply system, adopt by the heater in the back-up power supply cabinet, the fan, the cotton and PT100 temperature sensor of heat preservation bubble constitute the interior air conditioning system of cabinet, PT100 temperature sensor measures the interior actual temperature of cabinet, the heater starts to heat for the back-up power supply module when the temperature is low, the fan that is located heater afterbody mounted position lasts work and is used for circulating balance cabinet in the temperature, it can reduce the metal casing heat dissipation to paste the heat preservation bubble cotton around the power supply cabinet inner wall when cold weather, finally can let the back-up power supply sensitive to the low temperature can work under 25 ℃ constant temperature condition and realize reliable power output, guarantee to become oar safe operation of system.
The part not related in the device all is the same with prior art or can adopt prior art to realize, and the device design structure is reasonable, and convenient to use satisfies people's user demand.
Drawings
Fig. 1 is the utility model provides a compatible lead acid battery becomes oar back-up power supply system's system schematic diagram with super capacitor's alternating current-direct current.
In the figure: 1-variable pitch control cabinet; 2-mains supply of the grid; a 3-24VDC power supply; 4-a variable pitch PLC controller; 5-input/output control expansion module; 6-field bus communication expansion module; 7-a backup power maintenance operation switch; 8-a pitch drive; 9-motor band-type brake power supply; 10-backup power supply voltage monitoring module; 11-backup power charger; 12-a pitch motor; 13-a variable pitch motor brake; 14-control cabinet side heavy-duty connector; 15-backup power cable; 16-heavy-duty connectors on the side of the backup power supply cabinet; 17-a backup power supply cabinet; 18-heat preservation foam; 19-PT100 temperature sensor; 20-a backup power module; 21-a heater; 22-a fan; 23-a venting valve; 24-cable connection terminal row.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Referring to fig. 1, compatible lead acid battery and ultracapacitor system's alternating current-direct current becomes oar backup power system includes: become oar switch board 1, become oar motor 12, back-up source cabinet 17 and cabinet and connect the heavy load cable within a definite time, become oar switch board 1 and contain: the power grid main power supply 2 is electrically connected with the variable pitch drive 8, the 24VDC power supply 3, the motor band-type brake power supply 9 and the backup power supply charger 11 through leads, the 24VDC power supply 3 is electrically connected with the variable pitch PLC 4 through leads, the motor band-type brake power supply 9 is electrically connected with the variable pitch motor band-type brake 13 through leads, the variable pitch PLC 4 is electrically connected with the input/output control extension module 5 and the field bus communication extension module 6 through leads, and the field bus communication extension module 6 is electrically connected with the variable pitch drive 8 through leads, become between oar driver 8 and the oar motor 12 through wire electric connection, I/O control extension module 5 maintains operating switch 7 with backup power respectively, motor band-type brake power 9, pass through wire electric connection between backup power voltage monitoring module 10 and the backup power charger 11, backup power charger 11 has a plurality of backup power module 20 through wire electric connection, and backup power module 20 forms through the two kinds of forms of unit series connection and the parallelly connected mode of lead acid battery or super capacitor, backup power module 20 respectively with 24VDC power 3, pass through wire electric connection between motor band-type brake power 9 and the oar driver 8, backup power module 20 is located inside backup power cabinet 17.
Among them, the backup power cabinet 17 includes: the temperature control system comprises insulation foam 18, a PT100 temperature sensor 19, a heater 21, a fan 22, a vent valve 23 and a cable connecting terminal row 24, wherein a backup power cable 15 is electrically connected between a backup power cabinet 17 and a variable pitch control cabinet 1 through a lead, and a control cabinet side heavy-load connector 14 and a backup power cabinet side heavy-load connector 16 are respectively electrically connected to two sides of the backup power cable 15 through leads.
Wherein, pass through wire electric connection between backup power module 20 and the PT100 temperature sensor 19, PT100 temperature sensor 19 is used for the service environment temperature of real-time measurement backup power module.
The heater 21 is electrically connected with the fan 22 through a conducting wire, the fan 22 is electrically connected with the heat preservation foam 18 through a conducting wire, and the three components form an air conditioning system in the cabinet to adjust the temperature in the cabinet.
Wherein, there is breather valve 23 backup power supply cabinet 17 top outer wall through bolted connection for release the gas that backup power supply module 20 charge-discharge in-process produced, internal and external air pressure of balanced cabinet.
The cable connection terminal row 24 is composed of a plurality of terminal cards and is used for connecting an electrical cable which comprises a positive and negative power supply of the backup power supply assembly, power supply of the air conditioning system and PT100 temperature measurement.
The working principle is as follows: the main power supply 2 of the power grid is used as a main power supply of a variable pitch control system, provides a 3x400V three-phase alternating current power supply for a variable pitch driver 8, and also provides a single-phase alternating current input power supply for a control power supply 24VDC (direct current) 3, a motor brake power supply 9 and a backup power supply charger 11 in the cabinet; the 24VDC power supply 3 provides power for all 24VDC electric equipment including the variable pitch PLC controller 4 in the variable pitch control cabinet 1; the motor band-type brake power supply 9 provides a working power supply for the variable pitch motor band-type brake 13; the backup power supply charger 11 provides a charging power supply for the backup power supply module 20, the pitch control PLC 4 is connected with the input and output control expansion module 5 and the field BUS communication expansion module 6 through an E-BUS to form a control unit of a pitch control system, receives a communication instruction of the main controller of the wind generating set, sends a control instruction to the pitch control driver 8 through BUS communication, receives operation feedback data and state information of the pitch control driver, receives switching value feedback information from the backup power supply maintenance operation switch 7, the motor band-type brake power supply 9, the backup power supply voltage monitoring module 10 and the backup power supply charger 11 through the input and output control expansion module 5, finally the pitch control PLC 4 transmits the obtained operation data and feedback state inside the pitch control system to the main controller of the wind generating set, the pitch control driver 8 converts a three-phase alternating current main power supply into direct current power supply through an internal rectification unit to supply power to the direct current BUS unit, the built-in inversion unit converts a direct current point of a direct current bus unit into an alternating current or direct current power supply with frequency modulation and voltage regulation according to a calculation result of a speed closed-loop control link in a driver, and the alternating current or direct current power supply is supplied to a variable-pitch motor 12 together to finally drive blades to operate so as to realize a variable-pitch function, a backup power supply cabinet 17 and a variable-pitch control cabinet 1 are mutually connected through a backup power supply cable 15, in order to facilitate maintenance and repair of an operator, pluggable control cabinet side heavy-load connectors 14 and backup power supply cabinet side heavy-load connectors 16 are connected to two sides of the cable, meanwhile, the operator can cut off power supply of a variable-pitch backup power supply module through a backup power supply maintenance operation switch 7 positioned on the variable-pitch control cabinet 1, the whole variable-pitch backup power supply system is composed of a plurality of backup power supply modules 20, and the backup power supply modules 20 can select two types of lead-acid storage batteries or super capacitors according to flexibility required by the client in a series-parallel mode, because the backup power module has low-temperature special sensitivity to the use environment, an air-conditioning system in the cabinet is formed by the heater 21, the fan 22 and the heat-preservation foam 18 in the backup power cabinet 17; the PT100 temperature sensor 19 is used for measuring the service environment temperature of the backup power supply module in real time, the vent valve 23 is used for releasing gas generated in the charging and discharging process of the backup power supply module 20, the air pressure inside and outside the cabinet body is balanced, the cable connecting terminal row 24 is used for connecting a positive and negative power supply containing a backup power supply assembly, an air conditioning system power supply and an electric cable of PT100 temperature measurement, when the voltage of the power grid main power supply 2 drops, the backup power supply input by the backup power supply module 20 can be switched into a 24VDC power supply 3, a motor band-type brake power supply 9 and a direct current bus in the middle of the variable pitch driver 8 for supplying power, and the functions of low voltage ride through and safe feathering of the variable pitch system are realized. The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. Compatible lead acid battery and super capacitor's alternating current-direct current becomes oar back-up power system includes: become oar switch board (1), become oar motor (12), back-up source cabinet (17) and cabinet and connect the heavy load cable within a definite time, its characterized in that, it contains to become oar switch board (1): the system comprises a power grid main power supply (2), a 24VDC power supply (3), a variable pitch PLC (programmable logic controller) (4), an input/output control expansion module (5), a field bus communication expansion module (6), a backup power supply maintenance operation switch (7), a variable pitch driver (8), a motor band-type brake power supply (9), a backup power supply voltage monitoring module (10) and a backup power supply charger (11), wherein the power grid main power supply (2) is respectively and electrically connected with the variable pitch driver (8), the 24VDC power supply (3), the motor band-type brake power supply (9) and the backup power supply charger (11) through leads, the 24VDC power supply (3) is electrically connected with the variable pitch PLC controller (4) through leads, the motor band-type brake power supply (9) is electrically connected with a variable pitch motor band-type brake (13) through leads, and the variable pitch PLC controller (4) is respectively and electrically connected with the input/output control expansion module (5) and the field bus communication expansion module (6) through leads, the field bus communication expansion module (6) is electrically connected with the variable pitch driver (8) through a wire, the variable pitch driver (8) is electrically connected with the variable pitch motor (12) through a wire, the input and output control expansion module (5) is electrically connected with the backup power maintenance operation switch (7), the motor band-type brake power supply (9), the backup power supply voltage monitoring module (10) and the backup power supply charger (11) through wires, the backup power supply charger (11) is electrically connected with a plurality of backup power supply modules (20) through wires, the backup power supply modules (20) are formed by connecting lead-acid storage batteries or super capacitors in series and in parallel, and the backup power supply modules (20) are electrically connected with the 24VDC power supply (3), the motor band-type brake power supply (9) and the variable pitch driver (8) through wires, the backup power supply module (20) is located inside the backup power supply cabinet (17).
2. The alternating current-direct current variable pitch backup power supply system compatible with the lead-acid storage battery and the super capacitor as claimed in claim 1, wherein the backup power supply cabinet (17) comprises: cotton (18), PT100 temperature sensor (19), heater (21), fan (22), ventilative valve (23) and cable connecting terminal row (24) keep warm, there is back-up power cable (15) through wire electric connection between back-up power cabinet (17) and the change oar switch board (1), and back-up power cable (15) both sides have switch board side heavy load connector (14) and back-up power cabinet side heavy load connector (16) through wire electric connection respectively.
3. The alternating current-direct current variable pitch backup power supply system compatible with the lead-acid storage battery and the super capacitor is characterized in that the backup power supply module (20) is electrically connected with the PT100 temperature sensor (19) through a lead.
4. The alternating current-direct current variable pitch backup power supply system compatible with the lead-acid storage battery and the super capacitor is characterized in that the heater (21) is electrically connected with the fan (22) through a conducting wire, and the fan (22) is electrically connected with the heat preservation foam (18) through a conducting wire.
5. The alternating current-direct current variable pitch backup power supply system compatible with the lead-acid storage battery and the super capacitor is characterized in that a vent valve (23) is connected to the outer wall of the top of the backup power supply cabinet (17) through a bolt.
6. The AC-DC variable pitch backup power supply system compatible with a lead-acid storage battery and a super capacitor as claimed in claim 5, wherein the cable connection terminal row (24) is composed of a plurality of terminal cards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023091484.5U CN214281015U (en) | 2020-12-21 | 2020-12-21 | Alternating current-direct current variable pitch backup power supply system compatible with lead-acid storage battery and super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023091484.5U CN214281015U (en) | 2020-12-21 | 2020-12-21 | Alternating current-direct current variable pitch backup power supply system compatible with lead-acid storage battery and super capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN214281015U true CN214281015U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023091484.5U Active CN214281015U (en) | 2020-12-21 | 2020-12-21 | Alternating current-direct current variable pitch backup power supply system compatible with lead-acid storage battery and super capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214281015U (en) |
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- 2020-12-21 CN CN202023091484.5U patent/CN214281015U/en active Active
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