CN110486224A - A kind of variable pitch electric power controller - Google Patents
A kind of variable pitch electric power controller Download PDFInfo
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- CN110486224A CN110486224A CN201910696564.6A CN201910696564A CN110486224A CN 110486224 A CN110486224 A CN 110486224A CN 201910696564 A CN201910696564 A CN 201910696564A CN 110486224 A CN110486224 A CN 110486224A
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- variable pitch
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- 239000003990 capacitor Substances 0.000 claims description 12
- 238000003745 diagnosis Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 7
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/30—Lightning protection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/60—Cooling or heating of wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/328—Blade pitch angle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/50—Control logic embodiment by
- F05B2270/504—Control logic embodiment by electronic means, e.g. electronic tubes, transistors or IC's within an electronic circuit
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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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Direct Current Feeding And Distribution (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
A kind of variable pitch electric power controller, including the first lightning-protection module, the first AC/DC module, the 2nd AC/DC module, the first to the 5th DC/DC module, PLC module and control unit, alternating current is connected to the input terminal of the first AC/DC module and the 2nd AC/DC module by the first lightning-protection module；The output end of 2nd AC/DC module is respectively connected to the input terminal of the second to the 5th DC/DC module；The output of second to the 4th DC/DC module is respectively connected to pitch axis cabinet A/B/C；5th DC/DC module is as redundant power supply；The output end of first DC/DC module is in parallel with the output end of the first AC/DC module；PLC module connects theft-resistant link chain relay, EFC relay in pitch axis cabinet A/B/C respectively.Structure of the invention is compact to design rationally, reduces the volume of device；Pitch control and driving function are separated, there is better safety.
Description
Technical field
The invention belongs to power technique fields more particularly to a kind of electric power controllers for wind power pitch-controlled system.
Background technique
Pitch-controlled system is the important device of MW grades or more wind power generating set control and protection, is the main brake of fan parking
System.Currently, most of pitch-controlled systems are designed using three axis cabinets, three axis cabinets have almost the same function and structure, each
Independence or integrated charging module in the drive of the axis cabinet equipped with same specification, while each axis cabinet configures independence or is integrated in
PLC module in driver.Charging module is rectified into system requirements as the important component in pitch-controlled system, by three-phase 400VAC
DC output, for pitch axis cabinet backup power supply (super capacitor) charging and drive module power supply.PLC module is in pitch-controlled system
Controller realizes the functions such as logic control, signal acquisition, the fault diagnosis of pitch-controlled system.
Current three axis cabinet variable pitch number of components is more, especially with independent charging module, PLC module, driver
Pitch-controlled system, while variable pitch is one of the biggest impact factor of blower Wind turbines failure rate and downtime.Therefore, variable pitch collection
It needs to further increase in terms of Cheng Du and stability.
Summary of the invention
In order to solve problem above existing in the prior art, optimize variation paddle structure, the invention discloses one kind for becoming
The novel power supply managing device of paddle, the electric power controller export three road DC, are respectively connected to three axis cabinet of variable pitch, power for axis cabinet.
It is integrated with lightning-protection module, PLC module, DC/DC module etc. simultaneously.Electric power controller structure of the present invention is compact to design rationally, with
3 pieces of chargers and 3 groups of PLC module total volumes are compared in existing design, substantially reduce the volume of device；With PLC module, charging
The integrated driver of module, drive module is compared, and pitch control and driving function are separated, and has better safety.This hair
Bright electric power controller is mounted on the outside of A axis cabinet, and space is discharged in three axis cabinets, provides the sky of variable pitch high capacity
Between.
The invention adopts the following technical scheme:
A kind of variable pitch electric power controller, including the first lightning-protection module 1, the first AC/DC module 3, the 2nd AC/DC module 4,
First to the 5th DC/DC module, PLC module 5 and control unit 6；It is characterized by:
400V AC alternating current from slip ring is connected to the first AC/DC module 3 and the 2nd AC/ by the first lightning-protection module 1
The input terminal of DC module 4；
The output end of the 2nd AC/DC module 4 is respectively connected to the input terminal of the second to the 5th DC/DC module；
2nd DC/DC module 8, the 3rd DC/DC module 9, the 4th DC/DC module 10 output end be separately connected pitch axis cabinet
The driver of A/B/C；
The anode output of 5th DC/DC module 11 connects the output of the second to the 4th DC/DC module anode by diode respectively,
5th DC/DC module 11 is total to cathode with the second to the 4th DC/DC module and connect；
400V AC alternating current from slip ring is after lightning-protection module 1, and a phase 230V AC accesses axis cabinet A, warp beam in three-phase
Cabinet A is in parallel again to access axis cabinet B and axis cabinet C, the power supply for heater, fan；The power interface of another extension cabinet that connects of three-phase；
The output end of 2nd DC/DC module 8 is connect with the input terminal of the first DC/DC module 7, the first DC/DC module 7 it is defeated
The output end of outlet and the first AC/DC module 3 connects together, and is connected to the power end of PLC module and control unit；
PLC module 5 integrates multiple kinds, for communicating with blower master control, control unit 6, pitch axis cabinet.
The present invention further comprises following preferred embodiment:
First lightning-protection module 1 is 400V AC lightning-protection module, which is concatenation module formula surge protector (" 3+1 "
Mode), lightning protection grade is 2 grades；
Second lightning-protection module 2 is signal lighting protection module, which is to concatenate compound lightning current/surge protection mould
Block, the non-electrically isolated high frequency transmission signal line for direct or indirect bonding are protected；
The PLC module 5 is communicated by CANopen/DP bus and blower master control, receives master control instruction, uploads variable pitch letter
Breath；
The PLC module 5 is communicated by the driver of CANopen bus and pitch axis cabinet A/B/C, reads driver letter
Breath issues pitch control instruction；
The corresponding channel of DI/DO module of PLC module 5 connects slip ring theft-resistant link chain inlet wire, safety in pitch axis cabinet A/B/C respectively
Chain relay realizes theft-resistant link chain control.
Described control unit 6 receives the instruction of PLC module 5 by CANopen bus, controls the first to the 5th DC/DC mould
The start and stop of block；Realize the fault diagnosis and condition monitoring to power supply function in electric power controller, and will by CANopen bus
Fault diagnosis and operating status are uploaded to PLC module 5.
The first AC/DC module 3 is the AC/DC module of single-phase rectifier, exports 24V DC, powers in electric power controller
When and the when of normal operation power for PLC module and controller unit；
The 2nd AC/DC module is 3 commutating phase AC/DC modules, output voltage 560V DC；
Described second to the 5th DC/DC module inputs as 560V DC, exports as 450V DC, wherein the second to the 4th DC/
DC module connects the driver of pitch axis cabinet A/B/C respectively, powers for driver；Super electricity is connected by axis cabinet disconnecting switch simultaneously
Hold, charges to super capacitor；
5th DC/DC module 11 is redundancy charging module, is caused when the second to the 4th DC/DC module breaks down or overloads
When super-capacitor voltage drops to given threshold, the 5th DC/DC module 11 is the power supply of pitch axis cabinet by diode；
The wide input DC power of first DC/DC module 7, exports as 24V DC, operates normally and electricity in electric power controller
It powers when net power down for PLC module and controller unit；
The variable pitch electric power controller further includes lifting selection switch, and the lifting selection switch is serially connected in power management
In the circuit DI of device, when fan blade lifts, triggering lifting selection switch, control unit 6 receives DI signal, power management
The operation of module load shedding；
The electric power controller is additionally provided with spare CANopen, ethernet communication, 230V AC interface, expands for connecting
Showcase；
The electric power controller further includes closed metal shell, installs rectangular heat-dissipating aluminium plate in the lower section of shell,
Aluminium sheet uses multiple tooth structure, increases heat dissipation area；
The electric power controller further includes Ethernet interface debugging interface.
Compared with prior art, technical solution of the present invention has following beneficial technical effects:
Integration Design: power management module is integrated with variable pitch PLC module, lightning-protection module, 24V power module, theft-resistant link chain
Deng, while integrated 4 road DC/DC output, realize 1 power management module to functions such as control, the power supplies of 3 axis of variable pitch；
Power supply Redundancy Design: three axle box capacitors bear design altogether, when a certain path loss in three road charging module of power management module
It is super capacitor charging by redundancy DC/DC when bad or overload causes capacitance voltage to reduce.
Power grid isolation design: using the AC/DC power supply of isolation, being effectively isolated power grid, guarantees there is impact time-varying in power grid
The safety of paddle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of variable pitch electric power controller of the present invention；
Fig. 2 is the interface diagram of variable pitch electric power controller of the present invention.
Wherein, the meaning of appended drawing reference is as follows:
1 is the first lightning-protection module, and 2 be the second lightning-protection module, and 3 be the first AC/DC module, and 4 be the 2nd AC/DC module, and 5 are
PLC module, 6 be control unit, and 7 be the first DC/DC module, and 8 be the 2nd DC/DC module, and 9 be the 3rd DC/DC module, and 10 be the
Four DC/DC modules, 11 be the 5th DC/DC module, and 12 be slip ring 400V power supply interface, and 13 connect for slip ring theft-resistant link chain and CanOpen
Mouthful, 14 be Ethernet debugging interface, 15 be suspension switch interface, 16 be 230VAC power supply interface, 17 be extension cabinet interface, 18
It is axis a-signal interface for axis A power supply interface, 19,20 be axis B power supply interface, and 21 be axis B signal interface, and 22 connect for axis C power supply
Mouthful, 23 be axis C signal interface.
Specific embodiment
Technical solution of the present invention is described in further detail with specific embodiment with reference to the accompanying drawings of the specification.
It is as shown in Fig. 1 the structural schematic diagram of variable pitch electric power controller of the present invention, variable pitch power supply disclosed by the invention
Managing device include the first lightning-protection module 1, the second lightning-protection module 2, the first AC/DC module 3, the 2nd AC/DC module 4, first to
5th DC/DC module, PLC module 5 and control unit 6.
First lightning-protection module 1 is 400V AC lightning-protection module, which is concatenation surge protector (" 3+1 " mode),
Lightning protection grade is 2 grades.The 2nd AC/DC module 4 is 3 commutating phase AC/DC modules, output voltage 560VDC.From slip ring
400V AC alternating current is connected to the input terminal of the first AC/DC module 3 and the 2nd AC/DC module 4 by the first lightning-protection module 1；Institute
The output end for stating the 2nd AC/DC module 4 is respectively connected to the input terminal of the second to the 5th DC/DC module.
2nd DC/DC module 8, the 3rd DC/DC module 9, the 4th DC/DC module 10 are the modules of same specification, output electricity
Pressure is variable pitch capacitor charging voltage 450V, the output of the 2nd DC/DC module 8, the 3rd DC/DC module 9, the 4th DC/DC module 10
It is separately connected the driver of pitch axis cabinet A/B/C through the diode in device, powers for driver；Simultaneously by isolation in axis cabinet
Switch connection super capacitor, charges to super capacitor.
The anode output of 5th DC/DC module 11 connects the output of the second to the 4th DC/DC module anode by diode respectively,
5th DC/DC module 11 is total to cathode with the second to the 4th DC/DC module and connect；When the second to the 4th DC/DC module breaks down
Or overload, when super-capacitor voltage being caused to drop to given threshold, the 5th DC/DC module 11 is variable pitch A/B/C axis by diode
The charging of cabinet super capacitor, realizes redundant power supply.
The output end of 2nd DC/DC module 8 is connect with the input terminal of the first DC/DC module 7, the first DC/DC module 7 it is defeated
The output end of outlet and the first AC/DC module 3 connects together, and is connected to the power end of PLC module and control unit.
The first AC/DC module 3 is the AC/DC module of single-phase rectifier, exports 24V DC, powers in electric power controller
When and the when of normal operation power for PLC module 5 and control unit 6.First DC/DC module 7 is wide input DC power, exports and is
24V DC powers together with the first AC/DC module 3 when electric power controller is operated normally, individually powers when electric network power-fail.
Three-phase is after lightning-protection module 1, wherein a phase 230V AC accesses pitch axis cabinet A, warp beam cabinet A is in parallel again to access axis cabinet B
With axis cabinet C, power supply for heater, fan；The power interface of another extension cabinet that connects of three-phase.
The corresponding channel of DI/DO module of PLC module 5 connects slip ring theft-resistant link chain inlet wire, safety in pitch axis cabinet A/B/C respectively
Chain relay, EFC relay realize theft-resistant link chain control.PLC module 5 provides the buses such as CANopen/DP and blower master control communicates,
Master control instruction is received, variable pitch information is uploaded；PLC module 5 is communicated by the driver of CANopen bus and pitch axis cabinet A/B/C,
Driver Information is read, pitch control instruction is issued.
PLC module 5 and control unit 6 are communicated by CANopen bus, and control unit 6 receives the finger of PLC module 5
It enables, controls the start and stop of the first to the 5th DC/DC module；It realizes the fault diagnosis and condition monitoring to power supply device, and passes through
Fault diagnosis and operating status are uploaded to PLC module 5 by CANopen bus.
Electric power controller supports function counter extension, provides spare CANopen, ethernet communication, 230V AC interface, uses
In connection extension cabinet.
It is as shown in Fig. 2 the interface schema of variable pitch electric power controller of the present invention, variable pitch power management disclosed by the invention
Device includes 12 interfaces: slip ring 400V power supply interface 12, slip ring theft-resistant link chain and CanOpen interface 13, and Ethernet debugging connects
Mouth 14, lifting selection switch 15,230VAC power supply interface 16, extension cabinet interface 17, axis A power supply interface 18, axis a-signal interface
19, axis B power supply interface 20, axis B signal interface 21, axis C power supply interface 22, axis C signal interface 23.
The interface through pitch axis cabinet A/B/C connects respectively for axis A power supply interface 18, axis B power supply interface 20, axis C power supply interface 22
It is driver connected, it powers for respective shaft cabinet.
Axis a-signal interface 19, axis B signal interface 21, axis C signal interface 23 connect with the interface of pitch axis cabinet A/B/C respectively
It connects；It wherein include safety chain signal, Ethernet signal, CANopen communication in each interface.
Lifting selection switch 15 is serially connected in the circuit DI of electric power controller, when fan blade lifts, triggering lifting choosing
Switch is selected, control unit 6 receives DI signal, the operation of power management module load shedding.
Ethernet debugging interface 14, for connecting PLC module 5 carries out dress under program, interface logs in, debugs etc..Meanwhile
Electric power controller can be directly connected to by Ethernet and pitch axis cabinet A/B/C and extension cabinet communication by debugging interface
Communication apparatus in the driver and extension cabinet of pitch axis cabinet A/B/C.
Applicant combines Figure of description to be described in detail and describe the embodiment of the present invention, but this field skill
Art personnel are it should be understood that above embodiments are only the preferred embodiments of the invention, and explanation is intended merely to help reader in detail
More fully understand spirit of that invention, and it is not intended to limit the protection scope of the present invention, on the contrary, any based on invention essence of the invention
Any improvement or modification made by mind should all be fallen within the scope and spirit of the invention.
Claims (14)
1. a kind of variable pitch electric power controller, it is characterised in that: the electric power controller exports three road DC, is respectively connected to variable pitch three
Axis cabinet is powered for axis cabinet；It is integrated with lightning-protection module, PLC module, DC/DC module simultaneously.
2. a kind of variable pitch electric power controller, including the first lightning-protection module (1), the first AC/DC module (3), the 2nd AC/DC module
(4), the first to the 5th DC/DC module, PLC module (5) and control unit (6)；It is characterized by:
400V AC alternating current from slip ring is connected to the first AC/DC module (3) and the 2nd AC/ by the first lightning-protection module (1)
The input terminal of DC module (4)；
The output end of the 2nd AC/DC module (4) is respectively connected to the input terminal of the second to the 5th DC/DC module；
2nd DC/DC module (8), the 3rd DC/DC module (9), the 4th DC/DC module (10) output end be respectively connected to variable pitch
The driver of axis cabinet A/B/C；
The anode output of 5th DC/DC module (11) connects the output of the second to the 4th DC/DC module anode by diode respectively, the
Five DC/DC modules (11) are total to cathode with the second to the 4th DC/DC module and connect；
400V AC alternating current from slip ring is after lightning-protection module (1), and a phase 230V AC accesses pitch axis cabinet A, warp in three-phase
Axis cabinet A is in parallel again to access axis cabinet B and axis cabinet C, the power supply for heater, fan；Another phase 230V AC of three-phase connects extension cabinet
Power interface；
The output end of 2nd DC/DC module (8) is connect with the input terminal of the first DC/DC module (7), the first DC/DC module (7)
Output end and the output end of the first AC/DC module (3) connect together, and are connected to the power end of PLC module and control unit；
PLC module (5) integrates multiple kinds, for communicating with blower master control, control unit (6), pitch axis cabinet.
3. variable pitch electric power controller according to claim 2, it is characterised in that:
First lightning-protection module (1) is 400V AC lightning-protection module, which is concatenation surge protector, lightning protection grade
It is 2 grades.
4. variable pitch electric power controller according to claim 2, it is characterised in that:
Second lightning-protection module (2) is signal lighting protection module, which is to concatenate compound lightning current/surge protection module,
Non-electrically isolated high frequency transmission signal line for direct or indirect bonding is protected.
5. variable pitch electric power controller according to claim 2, it is characterised in that:
The PLC module (5) provides multiple kinds and blower master control communicates, and receives master control instruction, uploads variable pitch information；
The PLC module (5) is communicated by the driver of CANopen bus and pitch axis cabinet A/B/C, reads Driver Information,
Issue pitch control instruction；
The corresponding channel of DI/DO module of PLC module (5) connects slip ring theft-resistant link chain inlet wire respectively, theft-resistant link chain in pitch axis cabinet A/B/C
Relay realizes theft-resistant link chain control.
6. variable pitch electric power controller according to claim 5, it is characterised in that:
Described control unit (6) receives the instruction of PLC module (5) by CANopen bus, controls the first to the 5th DC/DC mould
The start and stop of block；Realize the fault diagnosis and condition monitoring to power supply function in electric power controller, and will by CANopen bus
Fault diagnosis and operating status are uploaded to PLC module (5).
7. the variable pitch electric power controller according to claim 2 or 6, it is characterised in that:
The first AC/DC module (3) is the AC/DC module of single-phase rectifier, 24V DC is exported, when electric power controller powers on
It powers with when operating normally for PLC module and controller unit.
8. variable pitch electric power controller according to claim 7, it is characterised in that:
The 2nd AC/DC module is 3 commutating phase AC/DC modules, output voltage 560V DC.
9. variable pitch electric power controller according to claim 6, it is characterised in that:
Described second to the 5th DC/DC module inputs as 560V DC, exports as 450V DC, wherein the second to the 4th DC/DC mould
Block connects the driver of pitch-controlled system A/B/C 3 axis cabinets of phase respectively, powers for driver；It is connected simultaneously by axis cabinet disconnecting switch
Super capacitor charges to super capacitor.
10. variable pitch electric power controller according to claim 9, it is characterised in that:
5th DC/DC module (11) is redundancy charging module, causes to surpass when the second to the 4th DC/DC module breaks down or overloads
When grade capacitance voltage drops to given threshold, the 5th DC/DC module (11) is the power supply of pitch axis cabinet by diode.
11. variable pitch electric power controller according to claim 2, it is characterised in that:
First DC/DC module (7) is wide input DC power, is exported as 24V DC, is operated normally and electricity in electric power controller
It powers when net power down for PLC module and controller unit.
12. variable pitch electric power controller according to claim 2, it is characterised in that:
The variable pitch electric power controller further includes lifting selection switch, and lifting selection switch is serially connected in the DI of electric power controller
In circuit, when fan blade lifts, triggering lifting selection switch, control unit (6) receives DI signal, electric power controller drop
Carrying row.
13. the variable pitch electric power controller according to claim 2 or 12, it is characterised in that:
The electric power controller is additionally provided with spare CANopen, ethernet communication, 230V AC interface, for connecting extension
Cabinet.
14. the variable pitch electric power controller according to claim 2 or 13, it is characterised in that:
The electric power controller further includes closed metal shell, installs rectangular heat-dissipating aluminium plate, aluminium sheet in the lower section of shell
Using multiple tooth structure, increase heat dissipation area.
The electric power controller further includes Ethernet interface debugging interface.
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| CN201910696564.6A CN110486224B (en) | 2019-07-30 | 2019-07-30 | Become oar power management device |
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| CN201910696564.6A CN110486224B (en) | 2019-07-30 | 2019-07-30 | Become oar power management device |
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| CN110486224A true CN110486224A (en) | 2019-11-22 |
| CN110486224B CN110486224B (en) | 2021-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113238510A (en) * | 2021-05-26 | 2021-08-10 | 深圳众城卓越科技有限公司 | Fully-integrated variable-pitch control system |
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