CN113982852A

CN113982852A - Wind field system

Info

Publication number: CN113982852A
Application number: CN202111202774.9A
Authority: CN
Inventors: 程栋; 蒋勇; 周京晖; 康鹏举; 韦永清; 马诚
Original assignee: Shanghai Electric Wind Power Group Co Ltd
Current assignee: Shanghai Electric Wind Power Group Co Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-01-28
Anticipated expiration: 2041-10-15
Also published as: CN113982852B

Abstract

The embodiment of the invention provides a wind field system. The wind field system comprises a fan end and a field end, wherein the fan end comprises a main controller and an intelligent terminal, the field end comprises a field controller, the main controller is in two-way communication with the intelligent terminal, the intelligent terminal is in one-way or two-way communication with the field controller, and the field controller is in one-way communication with the main controller. The wind field system provided by the embodiment of the invention can timely respond to the instruction of the field controller while reducing the pressure of the main controller for storing high-frequency data.

Description

Wind field system

Technical Field

The embodiment of the invention relates to the technical field of wind power generation, in particular to a wind field system.

Background

With the gradual depletion of energy sources such as coal and petroleum, human beings increasingly pay more attention to the utilization of renewable energy sources. Wind energy is increasingly gaining attention as a clean renewable energy source in all countries of the world. The wind power generation device is very suitable for and can be used for generating electricity by utilizing wind power according to local conditions in coastal islands, grassland pasturing areas, mountain areas and plateau areas with water shortage, fuel shortage and inconvenient traffic. Wind power generation is to convert the kinetic energy of wind into electric energy by using a fan.

The control system of the fan is an important component of the fan, undertakes important tasks of fan monitoring, automatic adjustment, maximum wind energy capture realization, good power grid compatibility guarantee and the like, and mainly comprises a monitoring system, a master control system, a variable pitch control system and a frequency conversion system (frequency converter). The main control system of the fan is the most core control part of the fan and is directly related to the performance and the safety of the fan. The master control system can collect various sensor signals and operation data in real time to monitor and protect the fan, guarantee stable and safe output of electric energy of the fan through power regulation and frequency regulation, and provide complete fan data support. The master control system includes a master controller, which is typically located in the nacelle of the wind turbine. The existing main controller needs to store a large amount of high-frequency data and communicate with the outside, so that the main controller has large data storage pressure and high occupancy rate of a CPU.

Disclosure of Invention

An object of an embodiment of the present invention is to provide a wind farm system, which can respond to an instruction of a farm controller in time while reducing a pressure of a main controller for storing high frequency data.

One aspect of an embodiment of the present invention provides a wind farm system. The wind field system comprises a fan end and a field end, the fan end comprises a main controller and an intelligent terminal, the field end comprises a field controller, the main controller is in two-way communication with the intelligent terminal, the intelligent terminal is in one-way or two-way communication with the field controller, and the field controller is in one-way communication with the main controller.

The wind field system of the embodiment of the invention is additionally provided with the intelligent terminal, the intelligent terminal shares the data storage function of the main controller, and the field controller can be in one-way communication with the main controller, so that the pressure of the main controller for storing high-frequency data and the CPU occupancy rate of the main controller can be reduced, and the instructions of the field controller can be responded in time.

Drawings

FIG. 1 is a schematic view of a wind turbine;

FIG. 2 is a schematic block diagram of a wind farm system of one embodiment of the present invention;

FIG. 3 is another schematic view of a wind farm system according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless otherwise defined, technical or scientific terms used in the embodiments of the present invention should have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Fig. 1 discloses a perspective view of a wind turbine 100. As shown in FIG. 1, wind turbine 100 includes a plurality of blades 101, a nacelle 102, a hub 103, and a tower 104. A tower 104 extends upwardly from a foundation (not shown), a nacelle 102 is mounted on top of the tower 104, a hub 103 is mounted at one end of the nacelle 102, and a plurality of blades 101 are mounted on the hub 103.

Fig. 2 discloses a schematic block diagram of a wind park system 1 according to an embodiment of the invention. As shown in fig. 2, a wind farm system 1 according to an embodiment of the present invention includes a wind farm end 10 and a farm end 20, where the wind farm end 10 includes a main controller 11 and an intelligent terminal 12, and the farm end 20 includes a farm controller 21. The main controller 11 may perform bidirectional communication with the intelligent terminal 12, the intelligent terminal 12 may perform unidirectional or bidirectional communication with the field controller 21, and the field controller 21 may perform unidirectional communication with the main controller 11.

The wind field system 1 of the embodiment of the invention is additionally provided with the intelligent terminal 12, the intelligent terminal 12 shares the data storage function of the main controller 11, and the field controller 21 can perform one-way communication with the main controller 11, so that the pressure of the main controller 11 for storing high-frequency data can be reduced, the instruction of the field controller 21 can be responded in time, and the main controller 11 can perform real-time control.

In one embodiment, the main controller 11 and the intelligent terminal 12 may be two independent devices respectively. The master controller 11 may be located in the nacelle 102 on top of the wind turbine tower 104 and the intelligent terminal 12 may be located at the bottom of the wind turbine tower 104. The main controller 11 may be communicatively coupled to the intelligent terminal 12 via one or more switches (not shown). For example, a tower top switch (not shown) is arranged at the top of the fan tower 104, a tower bottom switch (not shown) is arranged at the bottom of the fan tower 104, the main controller 11 can be connected to the tower top switch, the intelligent terminal 12 is connected to the tower bottom switch, and the tower top switch and the tower bottom switch are in communication connection with each other, so that the mutual communication connection between the main controller 11 and the intelligent terminal 12 can be realized.

Of course, in another embodiment, the intelligent terminal 12 may also be integrated in the main controller 11. The intelligent terminal 12 can be put together with the main controller 11 and be manufactured in a device, so that a dual-core edge-side system is manufactured.

The following description will be schematically made by taking the main controller 11 and the intelligent terminal 12 as two independent devices, which may be similarly applied to the embodiment in which the intelligent terminal 12 is integrated in the main controller 11. Minor variations or equivalent changes do not alter the inventive idea, which is to be considered within the scope of the appended claims.

The main controller 11 can provide the data signals SD of the wind turbine 100 to the intelligent terminal 12, and the intelligent terminal 12 can collect and store the data signals SD, so that the high-frequency data of the wind turbine can be stored in the intelligent terminal 12 for more than half a year, and a data basis is provided for edge calculation, data analysis and application. The intelligent terminal 12 of the embodiment of the invention can be used for sharing the data storage function of the main controller 11 and reducing the pressure and cost of the main controller 11 for storing high-frequency data. Preferably, the main controller 11 may provide all data signals SD of the wind turbine 100 to the intelligent terminal 12. Thus, the intelligent terminal 12 can function as a backup data, and can store important data for 25 years, for example.

The data signals SD transmitted from the main controller 11 to the intelligent terminal 12 are divided by taking each system (for example, according to the main control, the pitch system, the yaw system, the generator system, the hydraulic system, the gear box system, the main shaft system, the transformer system, and the tower system) as a dimension, and the data signals can be divided into various types, such as a state judgment amount, a hardware channel control amount, an algorithm amount, a communication amount, and the like. These data signals are typically high frequency data, for example, on the order of milliseconds. Of course, in other embodiments, the data signal SD may also contain low frequency data, for example, in the order of minutes.

When the communication between the intelligent terminal 12 and the main controller 11 is interrupted, the main controller 11 may retransmit the data signal SD to the intelligent terminal 12 within a predetermined time when the communication between the intelligent terminal 12 and the main controller 11 is interrupted.

The intelligent terminal 12 may send the first partial data signal SD1 to the field controller 21. The data signal SD collected and stored by the intelligent terminal 12 may include the first partial data signal SD1, although in other embodiments, at least some of the first partial data signal SD1 may be calculated from the data signal SD. The first partial data signal SD1 includes statistical data signals such as wind speed/power, etc., the type of signal is an algorithm quantity, and the signal is characterized by a frequency in the order of minutes or ten minutes. The field controller 21 may receive the control command from the power grid terminal and the first partial data signal SD1 from the intelligent terminal 12, and generate the first control signal SC1 to the main controller 11 based on the control command from the power grid terminal and the first partial data signal SD 1. The first control signal SC1 is a command type signal, such as a start-stop command, and the type of the signal is a control amount.

The field controller 21 of the embodiment of the invention performs one-way communication with the main controller 11, thereby ensuring that the main controller 11 can perform real-time control and can respond to the power grid instruction from the field controller 21 in time.

The field terminal 20 further includes an SCADA (Supervisory Control And Data Acquisition) system 22. In some embodiments, the smart terminal 12 may be in two-way communication with the SCADA system 22.

The intelligent terminal 12 may send the second partial data signal SD2 to the SCADA system 22. The data signal SD collected and stored by the intelligent terminal 12 may include the second partial data signal SD2, although in other embodiments, at least part of the second partial data signal SD2 may be calculated from the data signal SD. The second part data signal SD2 includes statistical data signals such as statistical analysis of wind speed/power, power curve, ten-minute history data, terminal health status, field control data, group intelligent statistical analysis information, etc., the signal type is an algorithm amount, and the signal is characterized by minute-level frequency such as minute or ten-minute. The SCADA system 22 may receive the second partial data signal SD2 from the smart terminal 12 and generate a second control signal SC2 to the smart terminal 12 based on the second partial data signal SD 2. The second control signal SC2 is a command-type signal, such as remote reset, remote start-stop, etc., and the type of signal is a control quantity.

The SCADA system 22 of the embodiment of the invention directly performs two-way communication with the intelligent terminal 12, and the communication mode can effectively reduce the CPU load of the main controller 11.

In some embodiments, the wind turbine end 10 may further include a sensing and monitoring system 13, and the intelligent terminal 12 may further perform bidirectional communication with the sensing and monitoring system 13. The sensing and Monitoring system 13 may include a cms (condition Monitoring system) vibration Monitoring system and other various Monitoring devices, for example. The sensory monitoring system 13 is located on the nacelle 102 of the wind turbine 100.

As shown in fig. 3, the wind farm system 1 of the embodiment of the present invention further includes a plurality of fans 100 and a fan ring network 30 formed by a ring network switch 31, wherein the plurality of fans 100 are all connected to the fan ring network 30 through the ring network switch 31. The main controller 11, the intelligent terminal 12 and the sensing monitoring system 13 of the fan end 10 of the wind farm system 1 may be connected to the fan ring network 30 through a switch (not shown), and the farm controller 21 and the SCADA system 22 of the farm end 20 are also connected to the fan ring network 30. Thereby, a communication connection between the fan end 10 and the field end 20 is achieved.

Referring back to fig. 2, the smart terminal 12 may send a third partial data signal SD3 to the sensory monitoring system 13. The data signal SD collected and stored by the intelligent terminal 12 may also include the third partial data signal SD3, although in other embodiments, at least some of the third partial data signal SD3 may also be calculated from the data signal SD. The third partial data signal SD3 includes system-like data signals, such as signals of bearings, etc., the type of the signals is algorithmic quantity, and the signals are characterized by millisecond-level high-frequency data. The sensing monitoring system 13 may receive the third partial data signal SD3 from the smart terminal 12 and generate a third control signal SC3 to the smart terminal 12 based on the third partial data signal SD 3. The third control signal SC3 is a command type signal, such as shutdown protection, and the like, and the type of the signal is a control quantity.

The sensing monitoring system 13 of the embodiment of the invention directly carries out bidirectional communication with the intelligent terminal 12, and the communication mode can effectively reduce the CPU load of the main controller 11.

In one embodiment of the present invention, at least some of the first, second, and third partial data signals SD1, SD2, and SD3 are different, and at least some of the first, second, and third partial data signals SD1, SD2, and SD3 may overlap.

In some embodiments of the present invention, the intelligent terminal 12, as a unique external data issuing interface, may correspondingly distribute the data signals to the field controller 21, the SCADA system 22, and the sensing monitoring system 13, respectively.

When the communication between the fan end 10 and the field end 20 is interrupted, after the communication between the fan end 10 and the field end 20 is interrupted, the intelligent terminal 12 may restore the first partial data signal SD1 and the second partial data signal SD2 to the field controller 21 and the SCADA system 22 of the field end 20, respectively, when the communication is restored.

The intelligent terminal 12 of the embodiment of the present invention may be loaded with one or more algorithms APP (application programs). The intelligent terminal 12 may perform an edge calculation based on at least a portion of the data signals SD and generate a fourth control signal SC4 and return to the main controller 11. The fourth control signal SC4 is a command type signal, such as a control signal and statistical information, a pitch command and a yaw command, and the signal type is a control quantity or an algorithm quantity. This embodiment allows the intelligent terminal 12 to perform some more complicated operations, and then returns a control signal to the main controller 11 after the operations are completed. Therefore, a part of the calculation power of the main controller 11 can be shared, and the calculation load of the main controller 11 can be effectively reduced.

In some embodiments, the smart terminal 12 collects the second control signal SC2 from the SCADA system 22 and the third control signal SC3 from the sensory monitoring system 13. The intelligent terminal 12 may be further configured to aggregate the control signals SC and return the aggregated control signals SC to the main controller 11, where the control signals SC returned by the intelligent terminal 12 to the main controller 11 may include the second control signal SC2 and the third control signal SC3 collected by the intelligent terminal 12 and the fourth control signal SC4 generated by the intelligent terminal 12. In this embodiment, the second control signal SC2 generated by the SCADA system 22, the third control signal SC3 generated by the sensing and monitoring system 13, and the fourth control signal SC4 generated by the smart terminal 12 are all transmitted back to the main controller 11 by the smart terminal 12, so that the main controller 11 only needs to communicate with the smart terminal 12, and does not need to communicate with the SCADA system 22 and the sensing and monitoring system 13. Because the main controller 11 correspondingly increases the CPU occupancy rate by about 10% when the main controller 11 is supposed to communicate with the SCADA system 22 and the sensing monitoring system 13 and each time a communication client is started, the embodiment can reduce the external communication of the main controller 11, effectively reduce the internal CPU occupancy rate of the main controller 11, and avoid the influence of the pressure of the fan ring network 30 on the main controller 11.

The intelligent terminal 12 of the embodiment of the present invention can be used as a unified interface for external communication, issue data, and return a control signal SC to the main controller 11.

In the wind farm system 1 according to one or more embodiments of the present invention, the intelligent terminal 12 is additionally provided, and the intelligent terminal 12 shares the data storage function of the main controller 11, so that the pressure of the main controller for storing high-frequency data can be reduced and the CPU occupancy rate of the main controller can be reduced.

The wind farm system provided by the embodiment of the invention is described in detail above. The wind farm system of the embodiment of the present invention is illustrated by using specific examples, and the above description of the embodiments is only used to help understanding the core idea of the present invention, and is not intended to limit the present invention. It should be noted that, for those skilled in the art, various improvements and modifications can be made without departing from the spirit and principle of the present invention, and these improvements and modifications should fall within the scope of the appended claims.

Claims

1. A wind farm system, characterized by: it includes fan end and field end, the fan end includes main control unit and intelligent terminal, the field end includes the field control unit, wherein, main control unit with intelligent terminal carries out both way communication, intelligent terminal with the field control unit carries out one-way or both way communication, the field control unit with main control unit carries out one-way communication.

2. The wind farm system of claim 1, wherein: the main controller is used for providing data signals of the fan to the intelligent terminal, and the intelligent terminal is used for collecting and storing the data signals.

3. The wind farm system of claim 2, wherein: the intelligent terminal is used for sending a first part of data signals to the field controller, and the field controller is used for receiving control instructions from a power grid end and the first part of data signals from the intelligent terminal and generating first control signals to the main controller based on the control instructions from the power grid end and the first part of data signals.

4. The wind farm system of claim 3, wherein: the field terminal further comprises an SCADA system, and the intelligent terminal is in two-way communication with the SCADA system.

5. The wind farm system of claim 4, wherein: the intelligent terminal is used for sending a second part of data signals to the SCADA system, and the SCADA system is used for receiving the second part of data signals from the intelligent terminal and generating second control signals to the intelligent terminal based on the second part of data signals.

6. The wind farm system of claim 5, wherein: the fan end further comprises a sensing monitoring system, and the intelligent terminal is further in two-way communication with the sensing monitoring system.

7. The wind farm system of claim 6, wherein: the intelligent terminal is used for sending a third part of data signals to the sensing monitoring system, and the sensing monitoring system is used for receiving the third part of data signals from the intelligent terminal and generating third control signals to the intelligent terminal based on the third part of data signals.

8. The wind farm system of claim 7, wherein: the intelligent terminal is further used for collecting control signals and returning the control signals to the main controller, wherein the control signals comprise the second control signals and the third control signals collected by the intelligent terminal and fourth control signals generated by the intelligent terminal based on at least part of data signals in the data signals.

9. The wind farm system of claim 5, wherein: and after the communication between the fan end and the field end is interrupted, the intelligent terminal is used for recovering the second part of data signals to the SCADA system when the communication is recovered.

10. The wind farm system of claim 2, wherein: and after the communication between the intelligent terminal and the main controller is interrupted, the main controller is used for retransmitting the data signal to the intelligent terminal within preset time when the communication is recovered.

11. The wind farm system of claim 1, wherein: the main controller and the intelligent terminal are two independent devices respectively.

12. The wind farm system of claim 11, wherein: the main controller is located in a cabin at the top of the fan tower, and the intelligent terminal is located at the bottom of the fan tower.

13. The wind farm system of claim 12, wherein: the main controller is in communication connection with the intelligent terminal through the switch.

14. The wind farm system of claim 1, wherein: the intelligent terminal is integrated in the main controller.

15. The wind farm system of claim 6, wherein: the wind power generation system is characterized by further comprising a fan ring network formed by a ring network switch, the main controller at the fan end, the intelligent terminal and the sensing monitoring system are connected to the fan ring network through the switch, and the field controller at the field end and the SCADA system are connected to the fan ring network.

16. The wind farm system of claim 6, wherein: the sensing monitoring system includes a CMS vibration monitoring system.

17. The wind farm system of claim 6, wherein: the sensing and monitoring system is positioned on a cabin of the fan.

18. The wind farm system of claim 1, wherein: one or more algorithm application programs are loaded on the intelligent terminal.