Offshore wind power integrated monitoring system and method

Abstract

The invention relates to the technical field of offshore wind power, in particular to an offshore wind power integrated monitoring system and method. The system comprises a data acquisition module which is used for communicating with a plurality of heterogeneous monitoring subsystems in an offshore wind plant and acquiring monitoring data; the data processing and control module is connected with the data acquisition module and is used for receiving and preprocessing the monitoring data; the control module is also used for generating a control instruction according to preset station-level control logic; the man-machine interaction module is connected with the data processing and control module and is used for providing a graphical interface, integrating and displaying the monitoring data and receiving control instructions oriented to a plurality of heterogeneous monitoring subsystems; and the remote communication module is connected with the data processing and control module and is used for carrying out data interaction with a remote management and control center. According to the system, seamless fusion of data acquisition, monitoring management and control execution of each wind turbine generator of an offshore wind plant can be realized, and the high-quality operation management requirement of the offshore wind plant can be better met.

Description

Technical Field

[0001] This invention relates to the field of offshore wind power technology, and more specifically to an integrated offshore wind power monitoring system and method. Background Technology

[0002] With the continuous growth of installed capacity in offshore wind farms, the number of procurement contracts for wind turbines is increasing, and the integration of multiple brands of wind turbines within a single wind farm is becoming increasingly common. However, different wind turbine manufacturers typically use independent communication protocols and data standards, which often leads to isolation and difficulty in interoperability between the monitoring systems of different brands. Furthermore, significant differences or technical barriers exist between the electrical systems and the wind turbine monitoring systems in terms of technical approaches, hardware platforms, and software structures, further exacerbating the integration difficulties. This phenomenon results in "information barriers" forming between the various systems within the wind farm, creating a fragmented and isolated management environment.

[0003] Although most wind farms have integrated data from booster stations / converter stations and various wind turbine monitoring systems to achieve full-process monitoring of the farm's operation status, the equipment in each subsystem still operates independently, forming "data silos." This requires operators to switch between multiple systems and makes it impossible to achieve unified control of key equipment such as wind turbines and converter stations from a single operating station, resulting in problems such as delayed operation response, personnel redundancy, and high labor costs.

[0004] Currently, most integrated monitoring systems with equipment control functions are built on top of the existing wind turbine SCADA system and booster station / converter station monitoring system. This integrated monitoring system is used for data collection, processing, and uploading. However, this adds a link in the data transmission process, which greatly increases the risk of data packet loss and data delay. As a result, the real-time performance and reliability of the monitoring data are significantly reduced, making it impossible to meet the increasingly demanding requirements for high-quality operation and management of offshore power plants. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated monitoring system and method for offshore wind power. This system retains the advantages of integrated systems in data integration and global management, while making up for its shortcomings in real-time control and logic processing. It truly achieves seamless integration of data acquisition, monitoring management and control execution, and can better meet the high-quality operation and management needs of offshore wind farms.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] In a first aspect, the present invention provides an integrated monitoring system for offshore wind power, the system comprising:

[0008] The data acquisition module is used to communicate with multiple heterogeneous monitoring subsystems in the offshore wind farm and collect monitoring data.

[0009] The data processing and control module, connected to the data acquisition module, is used to receive the monitoring data and preprocess it; it is also used to generate control commands according to the preset station-level control logic.

[0010] The human-computer interaction module is connected to the data processing and control module, and is used to provide a graphical interface, integrate and display the monitoring data, and receive control commands for controlling multiple heterogeneous monitoring subsystems.

[0011] The remote communication module is connected to the data processing and control module and is used to interact with the remote control center.

[0012] As a preferred embodiment of the present invention, the monitoring data collected by the data acquisition module includes wind turbine main control data from the main control systems of each wind turbine unit and operation data from the monitoring system of the flexible DC converter station.

[0013] As a preferred embodiment of the present invention, the data processing and control module includes a programmable logic controller and a monitoring server cluster; the programmable logic controller is configured with a graphical configuration development environment for implementing site-level control logic; the monitoring server cluster includes at least a real-time data server, a historical data server, and a configuration server.

[0014] As a preferred embodiment of the present invention, the integrated offshore wind power monitoring system is integrated within a four-level control architecture of the offshore wind farm; the priority of the four-level control architecture from high to low is as follows: local control level of field equipment, integrated control level of substation, the integrated offshore wind power monitoring system, and the remote control center.

[0015] As a preferred embodiment of the present invention, the data processing and control module implements at least one of the following functions through the logic configured in the programmable logic controller:

[0016] The control functions of the wind turbine main control system include remote start-stop control, reset control, power control, maintenance status switching control, yaw control in maintenance status, switchgear opening and closing operation control, and start-stop control of diesel generator.

[0017] The integrated control functions of the flexible DC converter station monitoring system include the opening and closing control of electrical switchgear;

[0018] It implements intelligent alarm control, equipment interlocking protection control, and energy management system group control.

[0019] Secondly, this invention provides an integrated monitoring method for offshore wind power, the method comprising:

[0020] Step 01: The data acquisition module communicates with multiple heterogeneous monitoring subsystems in the offshore wind farm to collect monitoring data from all stages.

[0021] Step 02: The data processing and control module receives the monitoring data, preprocesses the collected monitoring data, and generates control commands according to the preset station-level control logic.

[0022] Step 03: The human-computer interaction module integrates and displays the monitoring data through a unified graphical interface, and receives control commands for controlling multiple heterogeneous monitoring subsystems.

[0023] Step 03: The remote communication module interacts with the remote control center, uploading the processed information and monitoring data to the remote control center.

[0024] As a preferred embodiment of the present invention, this integrated monitoring method for offshore wind power further includes a step of issuing manual control commands, specifically as follows:

[0025] Managers can issue manual control commands to each wind turbine in the offshore wind farm through the human-computer interaction module.

[0026] Thirdly, the present invention also provides an electronic device, including a processor and a memory;

[0027] The processor is connected to the memory;

[0028] Memory, used to store executable program code;

[0029] The processor reads executable program code stored in memory and runs the program corresponding to the executable program code to perform the steps of the above-mentioned integrated monitoring method for offshore wind power.

[0030] Fourthly, the present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the above-described integrated monitoring method for offshore wind power.

[0031] In summary, the present invention has the following beneficial effects:

[0032] 1. This invention directly collects data from underlying devices such as the wind turbine main control programmable logic controller through a data acquisition module, eliminating intermediate forwarding links such as traditional independent wind turbine SCADA systems. This reduces the layers and nodes of data transmission, thereby effectively reducing the risk of data delay, packet loss, or distortion, ensuring high real-time performance and high reliability of monitoring data, and meeting the needs of high-quality operation of offshore wind farms.

[0033] 2. This invention innovatively introduces a high-performance programmable logic controller (PLC) as a dedicated control execution unit. Combined with a graphical configuration development environment, it allows users to flexibly design and deploy site-level control logic (such as fan start / stop, power regulation, etc.), realizing customized control strategies. This not only makes up for the shortcomings of integrated systems in real-time control, but also improves the system's adaptability and scalability, facilitating future functional expansion or adaptation to different brands of equipment. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a structural block diagram of the system;

[0036] Figure 2 This is a flowchart of the method;

[0037] Figure 3 This is an architecture diagram of a specific integrated offshore wind power monitoring system according to an embodiment of the present invention. Detailed Implementation

[0038] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed merely to enable those skilled in the art to better understand and implement the subject matter described herein, and are not intended to limit the scope, applicability, or examples set forth in the claims. The function and arrangement of the elements discussed may be changed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the various examples. For example, the described methods may be performed in a different order than described, and steps may be added, omitted, or combined. Furthermore, features described in some examples may be combined in other examples.

[0039] Example 1

[0040] In this embodiment, the system adopts a layered distributed architecture, such as... Figure 1 As shown, the system includes:

[0041] The data acquisition module is used to communicate with multiple heterogeneous monitoring subsystems in the offshore wind farm to collect monitoring data from all stages.

[0042] The data processing and control module, connected to the data acquisition module, is used to receive the monitoring data and preprocess it; it is also used to generate control commands according to the preset station-level control logic.

[0043] The human-computer interaction module is connected to the data processing and control module, and is used to provide a graphical interface, integrate and display the monitoring data, and receive control commands for controlling multiple heterogeneous monitoring subsystems.

[0044] The remote communication module is connected to the data processing and control module and is used to interact with the remote control center.

[0045] Specifically, in this embodiment, the data processing and control module is the core of the system. A Siemens S7-1500 series high-performance programmable logic controller (PLC) can be used as the real-time control unit to execute the site-level control logic. At the same time, a monitoring server cluster is configured, which includes multiple redundant real-time data servers and multiple redundant historical data servers.

[0046] This module is responsible for integrating and processing the wind turbine main control data and the flexible DC converter station operation data sent by the data acquisition module, and executing the site-level control logic. Meanwhile, the supporting configuration server and visual configuration development environment together constitute the system's logic design and configuration storage unit. Users can flexibly design and deploy various site-level control strategies (such as wind turbine group power coordination and equipment interlocking logic) through the graphical interface provided by this environment, without writing complex code, using intuitive methods such as drag-and-drop and configuration. This transforms abstract functional definitions into concrete, executable control applications, which ultimately run in the PLC and generate control instructions.

[0047] The data acquisition module can be implemented using multiple industrial protocol gateway servers. These servers are equipped with multiple network ports and various communication protocol drivers, enabling them to directly establish communication connections with the main control PLCs of wind turbines from different brands and the control systems of flexible DC-DC converter stations. Through dedicated interfaces, they directly acquire data in real time from the main control PLCs of each wind turbine unit, and also communicate with the computer monitoring system of the flexible DC-DC converter station to receive uploaded operating status and parameter data. The protocol gateway server establishes independent communication sessions with equipment from different manufacturers through its built-in multiple protocol drivers. For example, it acquires data such as wind speed, rotational speed, power, and fault codes from the wind turbine main control system via the OPC UA protocol; simultaneously, it acquires data such as DC voltage, current, and circuit breaker status from the flexible DC-DC converter station monitoring system via the IEC 104 protocol.

[0048] The human-machine interaction module can be implemented based on the engineer workstation deployed in the central control room, running unified graphical monitoring software, which supports the direct transmission of manual control commands from managers to each wind turbine.

[0049] The remote communication module is based on an industrial-grade router and equipped with a vertical encryption authentication device. It connects to the remote control center via a leased fiber optic line from an operator.

[0050] The system in this embodiment is equipped with a corresponding firewall and vertical encryption device. Its deployment covers data transmission between multiple internal and external systems, including data interaction between the wind turbine main control system and the flexible DC converter station computer monitoring system, as well as communication between the onshore and offshore computer monitoring systems.

[0051] In addition, this system is also integrated into the four-level control architecture of offshore wind farms, and the specific integration method is as follows:

[0052] Level 4 (lowest priority): Remote control center, which receives the panoramic data of the site uploaded by this system through the remote communication module and can issue scheduling instructions (such as AGC / AVC settings).

[0053] Level 3 (Second highest priority): This integrated offshore wind power monitoring system serves as the centralized monitoring and control brain at the site level.

[0054] Level 2 (High Priority): Substation Integrated Control Level (Flexible DC Converter Station Monitoring System), including the local controllers of each wind turbine and the local control system of the converter station. Control commands issued by this system (such as starting and stopping wind turbines) must be verified by the substation control system before execution.

[0055] Level 1 (highest priority): Local control level of field equipment (local control cabinet control of fans and electrical systems). The protection and control of the equipment itself has absolute priority, ensuring that the equipment can be safely shut down even if the upper system fails.

[0056] Example 2

[0057] like Figure 2 As shown in the figure, this embodiment provides an integrated monitoring method for offshore wind power, the method including:

[0058] Step 01: The data acquisition module communicates with multiple heterogeneous monitoring subsystems in the offshore wind farm to collect monitoring data from all stages.

[0059] Step 02: The data processing and control module receives the monitoring data, preprocesses the collected monitoring data, and generates control commands according to the preset station-level control logic.

[0060] Step 03: The human-computer interaction module integrates and displays monitoring data through a unified graphical interface, and receives control commands for controlling multiple heterogeneous monitoring subsystems.

[0061] Step 03: The remote communication module interacts with the remote control center, uploading the processed information and monitoring data to the remote control center.

[0062] In addition, this integrated monitoring method for offshore wind power also includes a manual control command issuance step, specifically: management personnel issue manual control commands to each wind turbine in the offshore wind farm through the human-machine interaction module.

[0063] Example 3

[0064] like Figure 3 As shown in the figure, this embodiment provides a specific architecture diagram of an integrated offshore wind power monitoring system, which is divided into Security Zone I, Security Zone II and Security Zone III.

[0065] The technical solution of this invention mainly involves Security Zone I and Security Zone II.

[0066] (1) Security Zone I: Real-time control zone, including data processing and control modules; on the system network, it is mainly configured with historical data servers, real-time data servers, programmable logic controllers, configuration servers, disk arrays and workstations.

[0067] (2) Safety II Zone: Non-real-time control zone, including data acquisition module, human-machine interaction module, remote communication module and some data processing and control module; specifically, it includes wind turbine auxiliary control system, power acquisition system, power billing system, power quality monitoring system, wind power prediction system, fault recording, information protection substation, etc.; on the system network, historical data server, disk array and workstation are mainly configured.

[0068] To ensure information security and meet scheduling requirements, the system is equipped with corresponding firewalls and vertical encryption devices; this deployment covers data transmission between multiple internal and external systems, as well as communication between land-based and maritime computer monitoring systems.

[0069] The isolation requirements between this system and the remote control center are as follows: the connections between Security Zone I and Security Zone II and the remote control center are both isolated by firewalls; and the system is equipped with vertical encryption devices on the communication links between land and sea nodes to ensure data transmission security.

[0070] This system connects with data in Safety Zone III through forward and reverse isolation devices, such as the wind farm production information management system, offshore wind power big data center, offshore wind farm supporting monitoring system, and heating and air conditioning control system.

[0071] Example 4

[0072] This embodiment provides an electronic device, including a processor and a memory;

[0073] The processor is connected to the memory;

[0074] Memory, used to store executable program code;

[0075] The processor reads executable program code stored in memory to run a program corresponding to the executable program code, in order to execute the steps of an integrated offshore wind power monitoring method in the above embodiments.

[0076] Example 5

[0077] This embodiment provides a computer-readable storage medium storing a computer program thereon. When the computer program is executed by a processor, it implements the steps of an integrated offshore wind power monitoring method described in the above embodiment.

[0078] In summary, this system can receive data uploaded by the offshore wind farm monitoring system, process it through the configuration logic designed in the programmable logic controller, generate hierarchical alarm information, provide status data support for the equipment interlocking logic unit to form the basis for interlocking judgment, and provide operating parameter input for the control strategy module to output optimized control commands.

[0079] Several embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technological improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An integrated monitoring system for offshore wind power, characterized in that, The system includes: The data acquisition module is used to communicate with multiple heterogeneous monitoring subsystems in the offshore wind farm and collect monitoring data. A data processing and control module, connected to the data acquisition module, is used to receive the monitoring data and perform preprocessing. It is also used to generate control commands based on preset station-level control logic; The human-computer interaction module is connected to the data processing and control module, and is used to provide a graphical interface, integrate and display the monitoring data, and receive control commands for controlling multiple heterogeneous monitoring subsystems. The remote communication module is connected to the data processing and control module and is used to interact with the remote control center.

2. The integrated monitoring system for offshore wind power according to claim 1, characterized in that, The monitoring data collected by the data acquisition module includes wind turbine main control data from the main control systems of each wind turbine unit and operation data from the monitoring system of the flexible DC converter station.

3. The integrated monitoring system for offshore wind power according to claim 2, characterized in that, The data processing and control module includes a programmable logic controller (PLC) and a monitoring server cluster; the PLC is configured with a graphical configuration development environment for implementing site-level control logic; the monitoring server cluster includes at least a real-time data server, a historical data server, and a configuration server.

4. The integrated monitoring system for offshore wind power according to claim 3, characterized in that, This integrated offshore wind power monitoring system is integrated within the four-level control architecture of the offshore wind farm; the priority of the four-level control architecture from high to low is as follows: local control level of field equipment, integrated control level of substation, integrated offshore wind power monitoring system, and remote control center.

5. The integrated monitoring system for offshore wind power according to claim 4, characterized in that, Through the logic configured in the programmable logic controller, the data processing and control module implements at least one of the following functions: The control functions of the wind turbine main control system include remote start-stop control, reset control, power control, maintenance status switching control, yaw control in maintenance status, switchgear opening and closing operation control, and start-stop control of diesel generator. The integrated control functions of the flexible DC converter station monitoring system include the opening and closing control of electrical switchgear; It implements intelligent alarm control, equipment interlocking protection control, and energy management system group control.

6. An integrated monitoring method for offshore wind power, characterized in that, The methods include: Step 01: The data acquisition module communicates with multiple heterogeneous monitoring subsystems in the offshore wind farm to collect monitoring data from all stages. Step 02: The data processing and control module receives the monitoring data, preprocesses the collected monitoring data, and generates control commands according to the preset station-level control logic. Step 03: The human-computer interaction module integrates and displays the monitoring data through a unified graphical interface, and receives control commands for controlling multiple heterogeneous monitoring subsystems. Step 03: The remote communication module interacts with the remote control center, uploading the processed information and monitoring data to the remote control center.

7. The integrated monitoring method for offshore wind power according to claim 6, characterized in that, It also includes the steps for issuing manual control commands, specifically: Managers can issue manual control commands to each wind turbine in the offshore wind farm through the human-computer interaction module.

8. An electronic device, comprising a processor and a memory; characterized in that, The processor is connected to the memory; The memory is used to store executable program code; The processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, in order to perform the steps of the integrated monitoring method for offshore wind power as described in claim 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the integrated monitoring method for offshore wind power as described in claim 6.

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