CN110017245A - A kind of double redundancy control circuits and method for driving motor internal contracting brake in pitch-controlled system - Google Patents
A kind of double redundancy control circuits and method for driving motor internal contracting brake in pitch-controlled system Download PDFInfo
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- CN110017245A CN110017245A CN201910253835.0A CN201910253835A CN110017245A CN 110017245 A CN110017245 A CN 110017245A CN 201910253835 A CN201910253835 A CN 201910253835A CN 110017245 A CN110017245 A CN 110017245A
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- band
- type brake
- driver
- voltage
- motor
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000005611 electricity Effects 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- F05B2270/60—Control system actuates through
- F05B2270/602—Control system actuates through electrical actuators
-
- 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
Landscapes
- 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)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of double redundancy control circuits and method for driving motor internal contracting brake in pitch-controlled system: the circuit includes the first driver, the second driver, external dc electricity source module, the high modeling block of first voltage, the high modeling block of second voltage, the high modeling block of tertiary voltage, relay or contactor, first motor and the second motor.Circuit disclosed in this invention and method avoid causing pitch-controlled system can not work normally because of single motor band-type brake control loop failure.If the band-type brake control loop failure of a driver, it is actively switched to the band-type brake control loop of another driver, to guarantee that two band-type brakes are opened, does not influence blower variable-pitch work and normal feathering, guarantee fan safe, improves the security and stability of pitch-controlled system.
Description
Technical field
The invention belongs to wind-driven generator fields, in particular to one of the field is double drives motor internal contracting brake in pitch-controlled system
Redundancy control circuit and method.
Background technique
Electric power is indispensable form of energy in daily production and life.Traditional thermal power generation will not only consume greatly
The fossil resource of amount, and a large amount of greenhouse gases can be discharged；Although nuclear energy power generation not emission greenhouse gas is very endangered
Danger, once there is accident, will cause irreversible destruction, so various countries are all greatly developing in recent years with wind-force to environment
Power generation is the clean energy resource of representative.The wind turbines rotor of mainstream is all the form for adding blade using wheel hub at present, in order to protect
Demonstrate,prove the constant revolution of wind wheel, it is necessary to be adjusted in real time by Windward angle of the pitch-controlled system to each blade of blower.
In double drive pitch-controlled systems, every driver respectively drives a motor, and the brake loop of every motor is by corresponding to
Driver individually control, such pitch-controlled system may have the following problems: when driver band-type brake control loop therefore
When barrier, the band-type brake of corresponding motor will be unable to open, and cause band-type brake by motor shaft locking, to cause entire blade can not variable pitch.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of double Redundant Controls for driving motor internal contracting brake in pitch-controlled system
Circuit and method.
The present invention adopts the following technical scheme:
A kind of double redundancy control circuit for driving motor internal contracting brake in pitch-controlled system, thes improvement is that: the circuit includes the
The high modeling block of one driver, the second driver, external dc electricity source module, first voltage, the high modeling block of second voltage, third electricity
High modeling block, relay or contactor, first motor and the second motor are pressed, wherein the band-type brake output port of the first driver is distinguished
The high modeling block of first voltage and the high modeling block of second voltage are accessed, the band-type brake output port of the second driver is respectively connected to the second electricity
High modeling block and the high modeling block of tertiary voltage are pressed, external dc electricity source module then accesses the high modeling block of first voltage and tertiary voltage
High modeling block, and the voltage of external dc electricity source module is lower than the electricity of the first driver and the second driver band-type brake output port
Pressure, the high modeling block of first voltage are electrically connected with first group of normally opened contact in relay or contactor, the high modeling block of second voltage
It is electrically connected with the coil in relay or contactor, the high modeling block of tertiary voltage and second group in relay or contactor are normally opened
Contact electrical connection, first group of normally opened contact are electrically connected with the band-type brake Wiring port of first motor, second group of normally opened contact and second
The band-type brake Wiring port of motor is electrically connected.
A kind of double redundancy control methods for driving motor internal contracting brake in pitch-controlled system, using above-mentioned circuit, improvements exist
In:
(1) when the brake loop of the first driver and the second driver is normal, the high modeling block selection first of second voltage is driven
Voltage the higher person in the band-type brake output port of dynamic device and the band-type brake output port of the second driver is in relay or contactor
Coil power supply, coil obtain it is electric be closed at first group of normally opened contact and second group of normally opened contact, the high modeling block of first voltage
Select band-type brake Wiring port of the band-type brake output port of the first driver by first group of normally opened contact of closure for first motor
Power supply, opens the band-type brake of first motor, and the high modeling block of tertiary voltage selects the band-type brake output port of the second driver by closing
The second group of normally opened contact closed is that the band-type brake Wiring port of the second motor is powered, and opens the band-type brake of the second motor；
(2) when the brake loop of the first driver brake loop failure but the second driver is normal, the high modeling block of second voltage
Select the band-type brake output port of the second driver for the coil power supply in relay or contactor, coil obtain it is electric make first group it is normally opened
Contact and second group of normally opened contact are closed at, first voltage high modeling block selection external dc electricity source module pass through closure the
One group of normally opened contact is that the band-type brake Wiring port of first motor is powered, and opens the band-type brake of first motor, the high modeling of tertiary voltage
Block selects band-type brake terminals of the band-type brake output port of the second driver by second group of normally opened contact of closure for the second motor
Confession electricity, opens the band-type brake of the second motor；
(3) when the brake loop of the second driver brake loop failure but the first driver is normal, the high modeling block of second voltage
Select the band-type brake output port of the first driver for the coil power supply in relay or contactor, coil obtain it is electric make first group it is normally opened
Contact and second group of normally opened contact are closed at, and the high modeling block of first voltage selects the band-type brake output port of the first driver to pass through
First group of normally opened contact of closure is that the band-type brake Wiring port of first motor is powered, and opens the band-type brake of first motor, third electricity
The band-type brake terminals for pressing high modeling block to select external dc electricity source module by second group of normally opened contact of closure for the second motor
Confession electricity, opens the band-type brake of the second motor.
The beneficial effects of the present invention are:
Circuit disclosed in this invention and method avoid causing pitch-controlled system can not be just because of single motor band-type brake control loop failure
Often work.If the band-type brake control loop failure of a driver, is actively switched to the band-type brake control loop of another driver,
To guarantee that two band-type brakes are opened, blower variable-pitch work and normal feathering are not influenced, guarantees fan safe, improves variable pitch system
The security and stability of system.In the double drive systems of variable pitch, two motor internal contracting brake control loops are mutually backups, as redundancy protecting, i.e.,
Make a brake loop damage, another brake loop seamless can also be cut, and the band-type brake of two motors be opened simultaneously, to guarantee
Motor internal contracting brake can be opened reliably.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of circuit disclosed in the embodiment of the present invention 1.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1, as shown in Figure 1, present embodiment discloses a kind of double Redundant Controls for driving motor internal contracting brake in pitch-controlled system
Circuit, the circuit include the first driver 1, the second driver 2, external dc electricity source module 3, the high modeling block of first voltage
4, the high modeling block 5 of second voltage, the high modeling block 6 of tertiary voltage, relay or contactor 7, first motor 8 and the second motor 9,
In the band-type brake output port of the first driver be respectively connected to the high modeling block of first voltage and the high modeling block of second voltage, the second driving
The band-type brake output port of device is respectively connected to the high modeling block of second voltage and the high modeling block of tertiary voltage, and external dc electricity source module is then
The high modeling block of first voltage and the high modeling block of tertiary voltage are accessed, and the voltage of external dc electricity source module is lower than the first driver
With the voltage of the second driver band-type brake output port, the high modeling block of first voltage and first group in relay or contactor are normally opened
Contact 71 is electrically connected, and the high modeling block of second voltage is electrically connected with the coil 72 in relay or contactor, the high modeling of tertiary voltage
Block is electrically connected with second group of normally opened contact 73 in relay or contactor, and the band-type brake of first group of normally opened contact and first motor connects
The electrical connection of line end mouth, second group of normally opened contact are electrically connected with the band-type brake Wiring port of the second motor.
The present embodiment also discloses a kind of double redundancy control methods for driving motor internal contracting brake in pitch-controlled system, uses above-mentioned electricity
Road:
(1) when the brake loop of the first driver and the second driver is normal, the high modeling block selection first of second voltage is driven
Voltage the higher person in the band-type brake output port of dynamic device and the band-type brake output port of the second driver is in relay or contactor
Coil power supply, coil obtain it is electric be closed at first group of normally opened contact and second group of normally opened contact, the high modeling block of first voltage
Select band-type brake Wiring port of the band-type brake output port of the first driver by first group of normally opened contact of closure for first motor
Power supply, opens the band-type brake of first motor, and the high modeling block of tertiary voltage selects the band-type brake output port of the second driver by closing
The second group of normally opened contact closed is that the band-type brake Wiring port of the second motor is powered, and opens the band-type brake of the second motor；
(2) when the brake loop of the first driver brake loop failure but the second driver is normal, the high modeling block of second voltage
Select the band-type brake output port of the second driver for the coil power supply in relay or contactor, coil obtain it is electric make first group it is normally opened
Contact and second group of normally opened contact are closed at, first voltage high modeling block selection external dc electricity source module pass through closure the
One group of normally opened contact is that the band-type brake Wiring port of first motor is powered, and opens the band-type brake of first motor, the high modeling of tertiary voltage
Block selects band-type brake terminals of the band-type brake output port of the second driver by second group of normally opened contact of closure for the second motor
Confession electricity, opens the band-type brake of the second motor；
(3) when the brake loop of the second driver brake loop failure but the first driver is normal, the high modeling block of second voltage
Select the band-type brake output port of the first driver for the coil power supply in relay or contactor, coil obtain it is electric make first group it is normally opened
Contact and second group of normally opened contact are closed at, and the high modeling block of first voltage selects the band-type brake output port of the first driver to pass through
First group of normally opened contact of closure is that the band-type brake Wiring port of first motor is powered, and opens the band-type brake of first motor, third electricity
The band-type brake terminals for pressing high modeling block to select external dc electricity source module by second group of normally opened contact of closure for the second motor
Confession electricity, opens the band-type brake of the second motor.
Claims (2)
1. a kind of double redundancy control circuits for driving motor internal contracting brake in pitch-controlled system, it is characterised in that: the circuit includes first
The high modeling block of driver, the second driver, external dc electricity source module, first voltage, the high modeling block of second voltage, tertiary voltage
High modeling block, relay or contactor, first motor and the second motor, wherein the band-type brake output port of the first driver connects respectively
Enter the high modeling block of first voltage and the high modeling block of second voltage, the band-type brake output port of the second driver is respectively connected to second voltage
High modeling block and the high modeling block of tertiary voltage, external dc electricity source module then accesses the high modeling block of first voltage and tertiary voltage is high
Modeling block, and the voltage of external dc electricity source module is lower than the voltage of the first driver and the second driver band-type brake output port,
The high modeling block of first voltage is electrically connected with first group of normally opened contact in relay or contactor, the high modeling block of second voltage with after
Coil electrical connection in electric appliance or contactor, the high modeling block of tertiary voltage and second group of normally opened contact in relay or contactor
Electrical connection, first group of normally opened contact are electrically connected with the band-type brake Wiring port of first motor, second group of normally opened contact and the second motor
Band-type brake Wiring port electrical connection.
2. a kind of double redundancy control methods for driving motor internal contracting brake in pitch-controlled system, use circuit described in claim 1, feature
It is:
(1) when the brake loop of the first driver and the second driver is normal, the high modeling block selection first of second voltage is driven
Voltage the higher person in the band-type brake output port of dynamic device and the band-type brake output port of the second driver is in relay or contactor
Coil power supply, coil obtain it is electric be closed at first group of normally opened contact and second group of normally opened contact, the high modeling block of first voltage
Select band-type brake Wiring port of the band-type brake output port of the first driver by first group of normally opened contact of closure for first motor
Power supply, opens the band-type brake of first motor, and the high modeling block of tertiary voltage selects the band-type brake output port of the second driver by closing
The second group of normally opened contact closed is that the band-type brake Wiring port of the second motor is powered, and opens the band-type brake of the second motor；
(2) when the brake loop of the first driver brake loop failure but the second driver is normal, the high modeling block of second voltage
Select the band-type brake output port of the second driver for the coil power supply in relay or contactor, coil obtain it is electric make first group it is normally opened
Contact and second group of normally opened contact are closed at, first voltage high modeling block selection external dc electricity source module pass through closure the
One group of normally opened contact is that the band-type brake Wiring port of first motor is powered, and opens the band-type brake of first motor, the high modeling of tertiary voltage
Block selects band-type brake terminals of the band-type brake output port of the second driver by second group of normally opened contact of closure for the second motor
Confession electricity, opens the band-type brake of the second motor；
(3) when the brake loop of the second driver brake loop failure but the first driver is normal, the high modeling block of second voltage
Select the band-type brake output port of the first driver for the coil power supply in relay or contactor, coil obtain it is electric make first group it is normally opened
Contact and second group of normally opened contact are closed at, and the high modeling block of first voltage selects the band-type brake output port of the first driver to pass through
First group of normally opened contact of closure is that the band-type brake Wiring port of first motor is powered, and opens the band-type brake of first motor, third electricity
The band-type brake terminals for pressing high modeling block to select external dc electricity source module by second group of normally opened contact of closure for the second motor
Confession electricity, opens the band-type brake of the second motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910253835.0A CN110017245B (en) | 2019-03-30 | 2019-03-30 | Redundant control circuit and method for motor band-type brake in double-drive variable-pitch system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910253835.0A CN110017245B (en) | 2019-03-30 | 2019-03-30 | Redundant control circuit and method for motor band-type brake in double-drive variable-pitch system |
Publications (2)
| Publication Number | Publication Date |
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| CN110017245A true CN110017245A (en) | 2019-07-16 |
| CN110017245B CN110017245B (en) | 2024-01-26 |
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| CN201910253835.0A Active CN110017245B (en) | 2019-03-30 | 2019-03-30 | Redundant control circuit and method for motor band-type brake in double-drive variable-pitch system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110928179A (en) * | 2019-12-12 | 2020-03-27 | 深圳市英威腾电气股份有限公司 | Control system and method for safe band-type brake of frequency converter |
| CN112253384A (en) * | 2020-10-22 | 2021-01-22 | 中国船舶重工集团海装风电股份有限公司 | Safe blade retracting control method for double-drive variable pitch system of wind generating set |
| CN113700603A (en) * | 2021-10-28 | 2021-11-26 | 东方电气风电有限公司 | Double-encoder check control double-drive variable pitch system and method for wind turbine generator |
| CN114448291A (en) * | 2021-12-23 | 2022-05-06 | 东方电气风电股份有限公司 | Double-drive variable pitch motor band-type brake safety control system |
| CN115773200A (en) * | 2022-11-23 | 2023-03-10 | 华锐风电科技(集团)股份有限公司 | Safe shutdown system based on dual-motor drive and working method |
| CN116707354A (en) * | 2023-07-28 | 2023-09-05 | 深圳众城卓越科技有限公司 | Band-type brake control circuit of multi-drive variable pitch system and band-type brake control method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964539A (en) * | 2010-08-14 | 2011-02-02 | 东方电气集团东方汽轮机有限公司 | Relay protection device of variable pitch blade system of wind driven generator |
| CN102022260A (en) * | 2010-11-24 | 2011-04-20 | 南京飓能电控自动化设备制造有限公司 | Supercapacitor-based redundant electric variable pitch system |
| CN102522807A (en) * | 2011-12-09 | 2012-06-27 | 东方电气集团东方汽轮机有限公司 | Control power supply of pitch system of wind driven generator |
| CN102588212A (en) * | 2012-03-22 | 2012-07-18 | 国电联合动力技术有限公司 | Manual variable-propeller device for wind generating set |
| US20130271056A1 (en) * | 2010-11-05 | 2013-10-17 | Lti Drives Gmbh | Pitch motor drive circuit which can operate in emergency mode |
| CN205001123U (en) * | 2015-08-05 | 2016-01-27 | 成都阜特科技股份有限公司 | Fan becomes oar control system based on general servo driver |
| CN206135532U (en) * | 2016-10-31 | 2017-04-26 | 埃斯倍风电科技(青岛)有限公司 | Become reserve power supply unit of oar system |
| CN108443063A (en) * | 2017-02-16 | 2018-08-24 | 北京金风科创风电设备有限公司 | Pitch-controlled system gravity returns paddle control method and device |
| CN208040621U (en) * | 2018-01-31 | 2018-11-02 | 新疆金风科技股份有限公司 | Pitch-controlled system and wind power generating set |
| CN209855958U (en) * | 2019-03-30 | 2019-12-27 | 埃斯倍风电科技(青岛)有限公司 | Redundant control circuit of motor band-type brake in dual-drive variable pitch system |
-
2019
- 2019-03-30 CN CN201910253835.0A patent/CN110017245B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964539A (en) * | 2010-08-14 | 2011-02-02 | 东方电气集团东方汽轮机有限公司 | Relay protection device of variable pitch blade system of wind driven generator |
| US20130271056A1 (en) * | 2010-11-05 | 2013-10-17 | Lti Drives Gmbh | Pitch motor drive circuit which can operate in emergency mode |
| CN102022260A (en) * | 2010-11-24 | 2011-04-20 | 南京飓能电控自动化设备制造有限公司 | Supercapacitor-based redundant electric variable pitch system |
| CN102522807A (en) * | 2011-12-09 | 2012-06-27 | 东方电气集团东方汽轮机有限公司 | Control power supply of pitch system of wind driven generator |
| CN102588212A (en) * | 2012-03-22 | 2012-07-18 | 国电联合动力技术有限公司 | Manual variable-propeller device for wind generating set |
| CN205001123U (en) * | 2015-08-05 | 2016-01-27 | 成都阜特科技股份有限公司 | Fan becomes oar control system based on general servo driver |
| CN206135532U (en) * | 2016-10-31 | 2017-04-26 | 埃斯倍风电科技(青岛)有限公司 | Become reserve power supply unit of oar system |
| CN108443063A (en) * | 2017-02-16 | 2018-08-24 | 北京金风科创风电设备有限公司 | Pitch-controlled system gravity returns paddle control method and device |
| CN208040621U (en) * | 2018-01-31 | 2018-11-02 | 新疆金风科技股份有限公司 | Pitch-controlled system and wind power generating set |
| CN209855958U (en) * | 2019-03-30 | 2019-12-27 | 埃斯倍风电科技(青岛)有限公司 | Redundant control circuit of motor band-type brake in dual-drive variable pitch system |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110928179A (en) * | 2019-12-12 | 2020-03-27 | 深圳市英威腾电气股份有限公司 | Control system and method for safe band-type brake of frequency converter |
| CN110928179B (en) * | 2019-12-12 | 2023-10-20 | 深圳市英威腾电气股份有限公司 | Control system and method for safety band-type brake of frequency converter |
| CN112253384A (en) * | 2020-10-22 | 2021-01-22 | 中国船舶重工集团海装风电股份有限公司 | Safe blade retracting control method for double-drive variable pitch system of wind generating set |
| CN112253384B (en) * | 2020-10-22 | 2022-04-22 | 中国船舶重工集团海装风电股份有限公司 | Safe blade retracting control method for double-drive variable pitch system of wind generating set |
| CN113700603A (en) * | 2021-10-28 | 2021-11-26 | 东方电气风电有限公司 | Double-encoder check control double-drive variable pitch system and method for wind turbine generator |
| CN114448291A (en) * | 2021-12-23 | 2022-05-06 | 东方电气风电股份有限公司 | Double-drive variable pitch motor band-type brake safety control system |
| CN114448291B (en) * | 2021-12-23 | 2024-06-04 | 东方电气风电股份有限公司 | Dual-drive variable-pitch motor band-type brake safety control system |
| CN115773200A (en) * | 2022-11-23 | 2023-03-10 | 华锐风电科技(集团)股份有限公司 | Safe shutdown system based on dual-motor drive and working method |
| CN116707354A (en) * | 2023-07-28 | 2023-09-05 | 深圳众城卓越科技有限公司 | Band-type brake control circuit of multi-drive variable pitch system and band-type brake control method thereof |
| CN116707354B (en) * | 2023-07-28 | 2023-12-22 | 深圳众城卓越科技有限公司 | Band-type brake control circuit of multi-drive variable pitch system and band-type brake control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110017245B (en) | 2024-01-26 |
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