CN115492719A - Wind power generation control system based on double-fed unit - Google Patents

Wind power generation control system based on double-fed unit Download PDF

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Publication number
CN115492719A
CN115492719A CN202211055270.3A CN202211055270A CN115492719A CN 115492719 A CN115492719 A CN 115492719A CN 202211055270 A CN202211055270 A CN 202211055270A CN 115492719 A CN115492719 A CN 115492719A
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CN
China
Prior art keywords
unit
control unit
fed
double
power generation
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Pending
Application number
CN202211055270.3A
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Chinese (zh)
Inventor
吕敬亮
车宏宇
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Hebei Zhongfan New Energy Technology Co ltd
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Hebei Zhongfan New Energy Technology Co ltd
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Priority to CN202211055270.3A priority Critical patent/CN115492719A/en
Publication of CN115492719A publication Critical patent/CN115492719A/en
Pending legal-status Critical Current

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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 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/04—Automatic control; Regulation
    • F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
    • F03D7/043—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic
    • 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
    • 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 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0204—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
    • 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 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H02J13/00026—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
    • 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
    • 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
    • F05B2270/329—Azimuth or yaw 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
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/337—Electrical grid status parameters, e.g. voltage, frequency or power demand
    • 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
    • F05B2270/40—Type of control system
    • F05B2270/402—Type of control system passive or reactive, e.g. using large wind vanes
    • 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

Abstract

The invention discloses a wind power generation control system based on a double-fed machine set, which comprises: the system comprises a monitoring unit, a double-fed unit control unit, a data processing unit, a data acquisition unit and a control unit; the monitoring unit comprises a monitoring panel, the monitoring panel is provided with a monitoring functional area, and the monitoring functional area comprises a dynamic picture and graphic display area of the blade, equipment conditions of a corresponding area, a dynamic simulation display area and a fault timely alarm area; the monitoring panel is connected with the double-fed unit control unit, the double-fed unit control unit is used for controlling the wind generating set, the double-fed unit control unit is connected with the data processing unit, the data processing unit is connected with the data acquisition unit, the data processing unit is used for calculating and uploading data transmitted by the data acquisition unit to the double-fed unit control unit, and the data processing unit is connected with the control unit.

Description

Wind power generation control system based on double-fed unit
Technical Field
The invention relates to the technical field of wind power generation control, in particular to a wind power generation control system based on a double-fed unit.
Background
At present, along with the continuous development of economy, people have more and more requirements on energy sources, the reserve quantity of non-renewable resources is seriously threatened, so people gradually turn attention to renewable resources, and wind energy is more and more emphasized by countries all over the world as clean renewable energy sources, so that the continuous innovation of wind driven generators is promoted
However, safety control of small and medium-sized wind driven generators has many hidden dangers, which mainly embody the following aspects: (1) The existing braking mechanism is mostly a drum type or disc type brake arranged on a low-speed shaft of the wind driven generator, and because the braking torque is limited, the safe braking under the working condition of strong wind cannot be realized, and the existing braking mechanism can only be used as a locking device for shutdown maintenance. (2) The service life is short, and due to the fact that the braking torque is limited, the brake shoe friction material is seriously abraded and frequently replaced due to the fact that the machine is stopped under the working condition of strong wind. (3) The reliability is low, and the phenomena of overspeed of a wind wheel and burning of a motor caused by frequent frequency can not be realized due to the fact that reliable shutdown under a strong wind working condition can not be realized. (4) The automatic degree is low, the existing braking system mostly adopts manual operation, and the automatic start-stop control of the wind driven generator cannot be realized.
Therefore, how to provide a wind power generation control system based on a double-fed machine set is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of this, the invention provides a wind power generation control system based on a doubly-fed machine set, which is connected to the data processing unit through the doubly-fed machine set control unit, the data processing unit is connected to the data acquisition unit, and the data processing unit is used for calculating data transmitted by the data acquisition unit and uploading the data to the doubly-fed machine set control unit, so that the doubly-fed machine set control unit controls the wind power generation unit.
In order to achieve the purpose, the invention adopts the following technical scheme:
a wind power generation control system based on a double-fed machine set comprises: the system comprises a monitoring unit, a double-fed unit control unit, a data processing unit, a data acquisition unit and a control unit;
the monitoring unit comprises a monitoring panel, the monitoring panel is provided with a monitoring function area, and the monitoring function area comprises a dynamic picture and graphic display area of the blade, equipment conditions of a corresponding area, a dynamic simulation display area and a fault timely alarm area;
the control panel is connected with the double-fed unit control unit, the double-fed unit control unit is used for controlling the wind generating set, the double-fed unit control unit is connected with the data processing unit, the data processing unit is connected with the data acquisition unit, the data processing unit is used for calculating and uploading data transmitted by the data acquisition unit to the double-fed unit control unit, and the data processing unit is also connected with the control unit.
Preferably, the data acquisition unit comprises a data acquisition unit of a wind power generation device, a data acquisition unit of a rectification device and a data acquisition unit of an inversion device, the data acquisition unit is further provided with a rotating speed acquisition circuit of a wind turbine, a voltage acquisition circuit of a generator, a voltage and current acquisition circuit of a direct current side inductor, an alternating current voltage acquisition circuit of a grid side and a direct current bus voltage acquisition circuit, the data processing unit is connected with the control unit, and the control unit comprises a variable pitch control unit, a yaw control unit and a grid-connected control unit.
Preferably, the system also comprises an environment temperature detector and an environment humidity detector, wherein the environment temperature detector and the environment humidity detector respectively detect and monitor the environment temperature and the environment humidity in real time and send detection data to the control unit, and a reference humidity value and a reference temperature value are preset in the control unit.
Preferably, the wind power generator further comprises a blade rotating speed detection unit for detecting a rotating speed value of the blade and sending the rotating speed value to the control unit, and when the rotating speed value is greater than a critical rotating speed value, the control unit reduces the output power of the power supply.
Preferably, the double-fed unit control unit includes main control unit and slave control unit, the main control unit is used for the safety chain of fan, power converter, driftage system, oil cooling and the control of water cooling system, the slave control unit is used for wheel hub system, wind speed and direction collection and UPS charge-discharge management.
Preferably, the intelligent terminal is further provided with a touch screen, the touch screen inputs control parameters and displays wind power generation condition data, and the data are wirelessly output to a control person through a Bluetooth chip and a Wi-Fi chip.
According to the technical scheme, compared with the prior art, the double-fed unit control unit is connected with the data processing unit, the data processing unit is connected with the data acquisition unit, and the data processing unit is used for calculating data transmitted by the data acquisition unit and uploading the data to the double-fed unit control unit, so that the double-fed unit control unit controls the wind generating set.
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of the overall structure of the system provided by the invention.
Fig. 2 is a schematic structural diagram of a data acquisition unit provided by the present invention.
Fig. 3 is a schematic structural diagram of a control unit provided by the present invention.
The system comprises a monitoring unit 1, a double-fed unit control unit 2, a data processing unit 3, a data acquisition unit 4, a control unit 5, an environment temperature detector 6, an environment humidity detector 7, a blade rotating speed detection unit 8, a monitoring panel 11, a wind power generation equipment data acquisition unit 41, a distillation equipment data acquisition unit 42, an inversion equipment data acquisition unit 43, a pitch distance control unit 51, a yaw control unit 52 and a grid-connected control unit 53.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The embodiment of the invention discloses a wind power generation control system based on a double-fed machine set, which comprises: the system comprises a monitoring unit 1, a double-fed unit control unit 2, a data processing unit 3, a data acquisition unit 4 and a control unit 5;
the monitoring unit 1 comprises a monitoring panel 11, the monitoring panel 11 is provided with a monitoring function area, and the monitoring function area comprises a dynamic picture and graphic display area of the blade, equipment conditions of a corresponding area, a dynamic simulation display area and a fault timely alarm area;
the monitoring panel 11 is connected with the double-fed unit control unit 2, the double-fed unit control unit 2 is used for controlling the wind generating set, the double-fed unit control unit 2 is connected with the data processing unit 3, the data processing unit 3 is connected with the data acquisition unit 4, the data processing unit 3 is used for calculating data transmitted by the data acquisition unit 4 and uploading the data to the double-fed unit control unit 2, and the data processing unit 3 is further connected with the control unit 5.
In order to further optimize the technical scheme, the data acquisition unit 4 comprises a wind power generation equipment data acquisition unit 41, a rectification equipment data acquisition unit 42 and an inversion equipment data acquisition unit 43, the data acquisition unit 4 is further provided with a rotating speed acquisition circuit of a wind turbine generator, a voltage acquisition circuit of a generator, a voltage and current acquisition circuit of a direct current side inductor, an alternating current voltage acquisition circuit of a grid side and a direct current bus voltage acquisition circuit, the data processing unit 4 is connected with the control unit 5, and the control unit 5 comprises a variable pitch control unit 51, a yaw control unit 52 and a grid-connected control unit 53.
In order to further optimize the technical scheme, the device further comprises an environment temperature detector 6 and an environment humidity detector 6, wherein the environment temperature detector 6 and the environment humidity detector 7 respectively detect and monitor the environment temperature and the environment humidity in real time, detection data are sent to the control unit 5, and a reference humidity value and a reference temperature value are preset in the control unit 5.
In order to further optimize the technical scheme, the device further comprises a blade rotating speed detection unit 8 used for detecting the rotating speed value of the blade and sending the rotating speed value to the control unit 5, and when the rotating speed value is larger than the critical rotating speed value, the control unit 5 reduces the output power of the power supply.
In order to further optimize the technical scheme, the double-fed unit control unit comprises a main control unit and a slave control unit, wherein the main control unit is used for controlling a safety chain, a power converter, a yaw system and an oil cooling and water cooling system of the fan, and the slave control unit is used for collecting a hub system and wind speed and direction and managing charging and discharging of a UPS (uninterrupted power supply).
In order to further optimize the technical scheme, the intelligent wind power generation system is further provided with a touch screen, the touch screen inputs control parameters and displays wind power generation state data, and the data are wirelessly output to an intelligent terminal of a controller through a Bluetooth chip and a Wi-Fi chip.
Firstly, judging whether a double-fed wind driven generator in a double-fed wind power generation system operates within a preset low slip range or not; if the double-fed wind driven generator runs in the preset low slip range, judging whether the running time of the double-fed wind driven generator running in the preset low slip range is longer than the trigger time of preset torque disturbance control; and if the running time of the double-fed wind driven generator running in the preset low slip range is longer than the preset torque disturbance control trigger time, executing preset torque disturbance control on the double-fed wind driven generator system so as to enable the double-fed wind driven generator to run out of the preset low slip range.
This application adopts ambient temperature detector and ambient humidity detector to carry out real-time detection and control to ambient temperature and ambient humidity respectively to will detect data transmission and give double-fed unit control unit. Reference humidity value and reference temperature value are preset in the double-fed unit control unit, and when the environment temperature detector detects that the environment temperature is reduced to a level equal to or lower than the reference temperature value, and when the environment humidity detector detects that the environment humidity is increased to a level equal to or higher than the reference humidity value, it is described that rain and snow weather occurs in the current weather condition, and due to the low environment temperature, the rain and snow may cause the blades to be frozen. Based on this kind of judgement, double-fed unit control fan and heating device carry out work to send into hot-blastly to air supply channel, hot-blastly to the surface of blade, weather the rain on blade surface, snow, thereby avoid freezing.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A wind power generation control system based on a double-fed unit is characterized by comprising: the system comprises a monitoring unit (1), a double-fed unit control unit (2), a data processing unit (3), a data acquisition unit (4) and a control unit (5);
the monitoring unit (1) comprises a monitoring panel (11), the monitoring panel (11) is provided with a monitoring function area, and the monitoring function area comprises a dynamic picture and graphic display area of the blade, an equipment condition of a corresponding area, a dynamic simulation display area and a fault timely alarm area;
double-fed unit the control unit (2) is connected in monitor panel (11), double-fed unit the control unit (2) are used for wind generating set's control, double-fed unit the control unit (2) are connected data processing unit (3), data processing unit (3) are connected data acquisition unit (4), data processing unit (3) are used for data acquisition unit (4) data transmission's calculation and upload and transmit double-fed unit the control unit (2), data processing unit (3) still with the control unit (5) are connected.
2. The wind power generation control system based on the doubly-fed machine set according to claim 1, wherein the data acquisition unit (4) comprises a wind power generation equipment data acquisition unit (41), a rectification equipment data acquisition unit (42) and an inversion equipment data acquisition unit (43), the data acquisition unit (4) is further provided with a rotating speed acquisition circuit of the wind power generation set, a voltage acquisition circuit of a generator, a voltage and current acquisition circuit of a direct current side inductor, an alternating current voltage acquisition circuit of a grid side and a direct current bus voltage acquisition circuit, the data processing unit (4) is connected with a control unit (5), and the control unit (5) comprises a variable pitch control unit (51), a yaw control unit (52) and a grid-connected control unit (53).
3. The wind power generation control system based on the doubly-fed machine set according to claim 1, further comprising an ambient temperature detector (6) and an ambient humidity detector (7), wherein the ambient temperature detector (6) and the ambient humidity detector (7) respectively detect and monitor the ambient temperature and the ambient humidity in real time, and send detection data to the control unit (5), and a reference humidity value and a reference temperature value are preset in the control unit (5).
4. A wind power generation control system based on a doubly-fed machine set according to claim 1, characterized in that it further comprises a blade rotation speed detection unit (8) for detecting the rotation speed value of the blade and sending the rotation speed value to said control unit (5), and when the rotation speed value is greater than the critical rotation speed value, said control unit (5) reduces the power output.
5. The wind power generation control system based on the double-fed unit as claimed in claim 1, wherein the double-fed unit control unit (2) comprises a master control unit and a slave control unit, the master control unit is used for controlling a safety chain, a power converter, a yaw system, an oil cooling and water cooling system of a fan, and the slave control unit is used for a hub system, wind speed and wind direction collection and UPS charging and discharging management.
6. The wind power generation control system based on the doubly-fed machine set according to claim 1, characterized in that a touch screen is further provided, the touch screen inputs control parameters and displays wind power generation condition data, and a bluetooth chip or a Wi-Fi chip is provided on the touch screen and used for sending and receiving the control parameters and the running state parameters of the wind turbine.
CN202211055270.3A 2022-08-31 2022-08-31 Wind power generation control system based on double-fed unit Pending CN115492719A (en)

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