CN113757040A - Dormancy method of direct-current variable-pitch control system - Google Patents
Dormancy method of direct-current variable-pitch control system Download PDFInfo
- Publication number
- CN113757040A CN113757040A CN202010507938.8A CN202010507938A CN113757040A CN 113757040 A CN113757040 A CN 113757040A CN 202010507938 A CN202010507938 A CN 202010507938A CN 113757040 A CN113757040 A CN 113757040A
- Authority
- CN
- China
- Prior art keywords
- control system
- variable pitch
- pitch
- position value
- driver
- 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
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005059 dormancy Effects 0.000 title claims abstract description 10
- 230000007958 sleep Effects 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000006266 hibernation Effects 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
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
Images
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
- 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
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- 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
- F05B2270/327—Rotor or generator speeds
-
- 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
-
- 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)
- Wind Motors (AREA)
Abstract
The invention belongs to the field of control of wind generating sets, and particularly relates to a dormancy method of a direct-current variable pitch control system. The method for sleeping the direct current variable pitch control system is disclosed, and specifically comprises the following steps: s1: the main control system continuously sends a position value instruction to the variable pitch system; s2: when the variable pitch system receives the same position value instruction continuously sent by the main control system, the variable pitch system controls the variable pitch motor and the driver to be switched to a dormant state, and when the position value instruction sent by the main control system is changed, the step S3 is executed; s3: and the pitch control system controls the pitch control motor and the driver to exit from the dormant state. Through the dormancy method, the service life of the variable pitch motor can be obviously prolonged, and the potential safety hazard of the fan is reduced.
Description
Technical Field
The invention belongs to the field of control of wind generating sets, and particularly relates to a dormancy method of a direct-current variable pitch control system.
Background
The control strategy of the direct current variable pitch control system of the early wind generating set in the normal power generation process is as follows: when the blades reach the optimal pitch angle of 0 degree, the pitch control system controls the pitch motor to output braking torque, so that the position of the blades is maintained at the optimal pitch angle position, and the pitch motor and the pitch driver are always in a working state in the whole process, so that the direct-current pitch system of a plurality of wind fields generally has the condition that the temperatures of the pitch motor and the driver are high, the dominant temperature is 80-90 ℃, the direct-current pitch system runs at high temperature for a long time, the service life of the pitch motor is influenced, hidden dangers are brought to the safety and stability of a fan, and the wind field is also greatly subjected to self-power consumption.
Disclosure of Invention
In order to solve the above problem, the invention discloses a dormancy method of a direct current variable pitch control system, specifically, the dormancy method comprises the following steps:
s1: the main control system continuously sends a position value instruction to the variable pitch system;
s2: when the variable pitch system receives the same position value instruction continuously sent by the main control system, the variable pitch system controls the variable pitch motor and the driver to be switched to a dormant state, and when the position value instruction sent by the main control system is changed, the step S3 is executed;
s3: and the pitch control system controls the pitch control motor and the driver to exit from the dormant state.
Further, the step S1 includes:
s11: the variable pitch system monitors the rotating speed information of the blades of the wind turbine generator in real time and transmits the rotating speed information to the master control system;
s12: and generating corresponding position value instruction information according to the rotating speed information of the wind turbine generator blades.
Further, the switching between the pitch motor and the driver to the sleep state in step S2 refers to the turning off of a driver enable signal by the pitch system, and the pitch motor is in a brake-contracting state.
Further, in step S2, when the pitch system receives the same position value instruction that is continuously sent by the main control system, the time length of the continuous sending may be set according to actual needs.
According to the invention, when the wind speed of the variable pitch system is stable, the driver and the variable pitch motor in the variable pitch system can enter a dormant state, so that the working temperature of the driver and the variable pitch motor can be obviously reduced, the safety of the wind turbine generator is improved, and the electricity is saved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a diagram illustrating the steps of a system hibernation method according to the present invention;
FIG. 2 shows a factory test simulation diagram according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses a dormancy method of a dormancy system of a direct-current variable-pitch motor, which comprises the following steps of:
s1: and the master control system continuously sends position value instructions to the variable pitch system.
Specifically, the step S1 further includes the following steps:
s11: the variable pitch system monitors the rotating speed information of the blades of the wind turbine generator in real time and transmits the rotating speed information to the master control system.
S12: and generating corresponding position value instruction information according to the rotating speed information of the wind turbine generator blades.
S2: and when the variable pitch system receives the same position value instruction continuously sent by the main control system, the variable pitch system controls the variable pitch motor and the driver to switch to the dormant state. The dormant state refers to that the variable pitch system closes a driver enabling signal, and the variable pitch motor is in a contracting brake state. When the position value command transmitted by the master control system is changed, step S3 is performed.
Specifically, the windward angle refers to a smaller angle formed between wind blowing to the wind turbine blades and the wind turbine blades, and the wind is set to blow to the wind turbine blades in parallel. The minimum windward angle is 0 degrees and the maximum windward angle is 90 degrees, the larger the windward angle is, the larger the acting force of the wind with the same speed on the wind turbine generator blades is, the smaller the windward angle is, and the smaller the acting force of the wind with the same speed on the wind turbine generator blades is.
S3: and the pitch control system controls the pitch control motor and the driver to exit from the dormant state.
Illustratively, in the wind turbine generator, when the wind speed is relatively stable, the variable pitch system adjusts the windward angle of the wind turbine generator blades, so that the rotating speed of the wind turbine generator blades keeps a high stable rotating speed in a safety interval. When the pitch control system adjusts the windward angle of the blades of the wind turbine generator to the optimal angle, the pitch control motor and the driver control the blades of the wind turbine generator to be kept unchanged, but the long-time operation of the pitch control motor and the driver can cause the temperature to rise, and the long-time operation of the pitch control motor and the driver can be carried out at high temperature, so that the service life of the pitch control motor is influenced, the potential safety and stability of a fan are hidden, and the wind turbine generator is greatly subjected to self-power consumption. The variable pitch system can detect the temperature information of the variable pitch motor and the variable pitch motor in real time and send the temperature information to the master control system. The variable pitch system monitors the rotating speed information of the blades of the wind turbine generator in real time and sends the rotating speed information to the main control system. And the master control system receives the temperature information and the rotating speed information sent by the variable pitch system. The main control system processes the rotating speed information. When the rotating speed is lower than the rated rotating speed interval, the master control system controls the variable pitch system to increase the windward angle of the blades of the wind turbine generator, and the rotating speed of the blades of the wind turbine generator is increased under the action of wind power; when the rotating speed is higher than the rated rotating speed interval, the master control system controls the variable pitch system to reduce the windward angle of the wind turbine generator blades, the wind power effect received by the wind turbine generator blades is weakened, and the rotating speed is slowly reduced. And when the rotating speed is within the rated rotating speed interval, the main control system controls the variable pitch system to maintain the rotating speed unchanged. In summary, the main control system controls the rotating speed of the wind turbine generator to reach a rated rotating speed interval by changing the windward angle of the wind turbine generator through the variable pitch system, so that the efficiency maximization is realized under the condition of ensuring the safety of equipment. And when the rotating speed of the wind turbine generator reaches a rated interval, the master control system sends a continuous same position value instruction to the variable pitch system, and the variable pitch system controls the blades of the wind turbine generator to maintain a certain windward angle according to the position value instruction. And when the variable pitch system receives the same position value instruction for a long time, the variable pitch system controls the variable pitch motor and the driver to be in a dormant state.
For example, as shown in fig. 2, when the pitch system continuously receives a command maintained at 89 ° in 10S, after 10S, the time length 10S of the continuous transmission can be set according to actual needs. And the enabling signal of the driver in the variable pitch system is turned off, the variable pitch motor stops working, the motor is braked, and the driver and the variable pitch motor are in a dormant state.
After the position value instruction sent by the main control system is changed, the variable pitch system receives position value information different from 89 degrees, the variable pitch system executes a lottery-opening instruction, the driver enabling signal is closed, the driving motor brake is opened, the variable pitch motor starts to work, and the lottery-opening instruction is immediately executed.
When the wind speed changes, the windward angle of the wind turbine generator is not changed in time due to the fact that the driver and the variable pitch motor do not have functions, the rotating speed of the blades of the wind turbine generator is continuously accelerated under the action of the wind power, the variable pitch system monitors that the rotating speed is accelerated and then sends the rotating speed information to the main control system, the main control system receives the rotating speed information and then sends different position value instructions to the variable pitch system, the variable pitch system sends a lottery-drawing instruction to the driver, the variable pitch motor quits a dormant state and starts to work, the windward angle of the blades of the wind turbine generator is reduced, namely the effect of wind power on the blades of the wind turbine generator is reduced, and the rotating speed of the blades of the wind turbine generator returns to the rated interval.
According to the invention, when the wind speed of the variable pitch system is stable, the driver and the variable pitch motor in the variable pitch system can enter a dormant state, so that the working temperature of the driver and the variable pitch motor can be obviously reduced, the safety of the wind turbine generator is improved, and the electricity is saved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. A dormancy method of a direct current variable pitch control system is characterized in that,
the sleep method comprises the following steps:
s1: the main control system continuously sends a position value instruction to the variable pitch system;
s2: when the variable pitch system receives the same position value instruction continuously sent by the main control system, the variable pitch system controls the variable pitch motor and the driver to be switched to a dormant state, and when the position value instruction sent by the main control system is changed, the step S3 is executed;
s3: and the pitch control system controls the pitch control motor and the driver to exit from the dormant state.
2. The control system sleep method according to claim 1,
the step S1 includes:
s11: the variable pitch system monitors the rotating speed information of the blades of the wind turbine generator in real time and transmits the rotating speed information to the master control system;
s12: and generating corresponding position value instruction information according to the rotating speed information of the wind turbine generator blades.
3. The control system sleep method according to claim 1,
the step S2 of switching the pitch motor and the driver to the sleep state refers to the pitch system turning off a driver enable signal, and the pitch motor is in a brake-contracting state.
4. The control system sleep method according to claim 1,
in step S2, the pitch system receives the same position value instruction continuously sent by the main control system, and the time length of the continuous sending may be set according to actual needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010507938.8A CN113757040A (en) | 2020-06-05 | 2020-06-05 | Dormancy method of direct-current variable-pitch control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010507938.8A CN113757040A (en) | 2020-06-05 | 2020-06-05 | Dormancy method of direct-current variable-pitch control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113757040A true CN113757040A (en) | 2021-12-07 |
Family
ID=78785141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010507938.8A Pending CN113757040A (en) | 2020-06-05 | 2020-06-05 | Dormancy method of direct-current variable-pitch control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113757040A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2402590A1 (en) * | 2009-02-27 | 2012-01-04 | Eolincyl, S.L. | Three-bladed wind turbine device for small spaces |
| CN202451364U (en) * | 2012-01-16 | 2012-09-26 | 三一电气有限责任公司 | Wind wheel revolving speed and pitch angle control system and wind driven generator comprising same |
| CN103629048A (en) * | 2013-12-20 | 2014-03-12 | 济南轨道交通装备有限责任公司 | Intelligent pitch control system of wind turbine generator and pitch control method thereof |
| EP3130798A1 (en) * | 2015-08-12 | 2017-02-15 | Senvion GmbH | Method for controlling pitch drives of a wind turbine, control device and wind turbine |
| CN108979955A (en) * | 2018-06-25 | 2018-12-11 | 浙江运达风电股份有限公司 | A kind of alternating current variable-pitch control system dormancy control method |
-
2020
- 2020-06-05 CN CN202010507938.8A patent/CN113757040A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2402590A1 (en) * | 2009-02-27 | 2012-01-04 | Eolincyl, S.L. | Three-bladed wind turbine device for small spaces |
| CN202451364U (en) * | 2012-01-16 | 2012-09-26 | 三一电气有限责任公司 | Wind wheel revolving speed and pitch angle control system and wind driven generator comprising same |
| CN103629048A (en) * | 2013-12-20 | 2014-03-12 | 济南轨道交通装备有限责任公司 | Intelligent pitch control system of wind turbine generator and pitch control method thereof |
| EP3130798A1 (en) * | 2015-08-12 | 2017-02-15 | Senvion GmbH | Method for controlling pitch drives of a wind turbine, control device and wind turbine |
| CN108979955A (en) * | 2018-06-25 | 2018-12-11 | 浙江运达风电股份有限公司 | A kind of alternating current variable-pitch control system dormancy control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101893855B (en) | Control method for guaranteeing safe operation of wind turbine | |
| CN110017245B (en) | Redundant control circuit and method for motor band-type brake in double-drive variable-pitch system | |
| CN104832371A (en) | Control method and system for wind generating set | |
| CN102305177A (en) | Wind generating set start control method and system | |
| JP2018509126A (en) | Wind power generator operation method | |
| CN103629048A (en) | Intelligent pitch control system of wind turbine generator and pitch control method thereof | |
| CN109083808B (en) | Automatic yaw control method, controller and system for wind driven generator | |
| CN104329225B (en) | Wind power generator set power control method | |
| CN107630785B (en) | Wind turbines Protection control system under one kind of multiple operating conditions | |
| CA2511973C (en) | Management system for the operation of a wind turbine | |
| CN103174587B (en) | Wind power generation system and control method thereof | |
| CN107701368B (en) | A kind of blade feathering method of Wind turbines | |
| CN102522774A (en) | Dual-motor switching control method for wind generating set | |
| CN111810358B (en) | Method for reducing yaw load of wind generating set under high wind speed working condition | |
| CN113757040A (en) | Dormancy method of direct-current variable-pitch control system | |
| CN107546780B (en) | Power control algorithm of wind generating set | |
| CN111371124B (en) | Wind farm active power scheduling method capable of guaranteeing maximization of generated energy | |
| CN109995281B (en) | Control method and device for fault recovery of wind turbine generator and readable storage medium | |
| KR20150019463A (en) | Apparatus and system for controlling wind farm | |
| CN209855958U (en) | Redundant control circuit of motor band-type brake in dual-drive variable pitch system | |
| CN109630355B (en) | Control method, controller and system for automatic yawing and variable pitch of wind driven generator | |
| CN211737364U (en) | Wind turbine generator system frequency conversion device and driftage system | |
| US20130264822A1 (en) | Wind power generating system | |
| CN219979443U (en) | Yaw relay device | |
| CN219549024U (en) | Yaw soft start-based wind generating set control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211207 |
|
| RJ01 | Rejection of invention patent application after publication |