Operation safety guarantee system for offshore flexible direct current power transmission project

Abstract

The invention discloses an operation safety guarantee system for an offshore flexible DC power transmission project. The operation safety guarantee system comprises a data acquisition module, a data processing module and a digital twinborn model construction module, the data acquisition module is responsible for collecting various data of an offshore wind plant and a power transmission system, including wind speed, current and voltage, equipment real-time operation state and environment real-time data, and uploading the data to the data processing module. The data processing module is used for processing the real-time data uploaded by the data acquisition module in real time, and the processed real-time data is used for constructing a digital twinborn model; the digital twinborn model construction module is used for constructing a virtual digital twinborn model by applying a digital twinborn technology, and the virtual digital twinborn model is used for simulating an actual offshore flexible power transmission system, and can reflect the running state of the offshore flexible power transmission system in real time and perform predictive analysis at the same time. The method can effectively improve the operation safety of the offshore flexible DC power transmission project, reduces the risk of fault occurrence, and has a wide application prospect.

Description

Technical Field

[0001] The present invention relates to the field of flexible direct current power transmission, and in particular to an offshore flexible direct current power transmission project operation safety guarantee system. Background Art

[0002] In recent years, with the growth of offshore wind power scale and offshore distance, flexible direct current transmission has become an ideal grid-connected solution for long-distance offshore wind power transmission. Domestic offshore wind power flexible direct current project construction has also been carried out one after another.

[0003] The core part of the offshore wind power flexible direct current transmission system includes the offshore converter station, which is responsible for converting the collected offshore wind power into direct current and transmitting it to the land through submarine cables. The offshore converter station usually consists of two parts: the upper block and the lower pipe frame foundation. The upper block includes flexible direct current transmission converter valves, DC support capacitors, and control and protection equipment such as DC circuit breakers, DC fuses, and DC disconnectors. Among them, the flexible direct current transmission converter valve is one of the most critical equipment. Its main function is to realize the conversion of AC to DC and the regulation of DC current. The performance of the converter valve directly affects the stability and efficiency of the entire system. In addition, the DC support capacitor is an important component of the converter valve. Its function is to provide the necessary reactive power when the system is short-circuited or faulty to ensure the stable operation of the system. The function of the control and protection equipment is to quickly cut off the fault current when a fault occurs in the system to protect other parts of the system from damage.

[0004] The operating reliability of the above-mentioned equipment directly affects the working stability of the flexible DC transmission system. The above-mentioned equipment is set in the upper module. The existing upper module is a multi-story steel structure building. During the operation of the offshore platform, these equipment are easily affected by severe weather such as waves, humid air, and strong winds and rainstorms. How to ensure the safety of the equipment in the offshore platform is an urgent problem to be solved. Summary of the invention

[0005] In order to solve the existing problems, the present invention provides an offshore flexible direct current transmission project operation safety guarantee system, the specific scheme is as follows:

[0006] An offshore flexible direct current transmission project operation safety assurance system, comprising a data acquisition module, a data processing module, and a digital twin model construction module;

[0007] The data acquisition module is responsible for collecting various data of the offshore wind farm and the power transmission system, including wind speed, current and voltage, real-time operation status of equipment and real-time environmental data, and uploading them to the data processing module;

[0008] The data processing module is used to process the real-time data uploaded by the data acquisition module in real time, and the processed real-time data is used to build a digital twin model;

[0009] The digital twin model construction module is used to use digital twin technology to build a virtual digital twin model. The virtual digital twin model is used to simulate the actual offshore flexible power transmission system, and can reflect the operating status of the offshore flexible power transmission system in real time and perform predictive analysis.

[0010] Preferably, the sensors for collecting the real-time environmental data include environmental sensors respectively arranged in the valve hall, the communication room, and the GIS room, specifically including high-definition cameras, humidity sensors, temperature sensors, smoke sensors, and voltage and current detection modules.

[0011] Preferably, the digital twin model construction module includes a three-dimensional model construction module, a virtual map module, a machine learning algorithm module, a remote automation control module and a human-computer interaction module;

[0012] The three-dimensional model building module is used to build a three-dimensional model of the distribution automation monitoring system according to the initialization data collected by the data collection module;

[0013] The virtual map module is used to display the layout of the offshore flexible power transmission system and the status of each device in the system based on the constructed three-dimensional model, and is used to locate and isolate actual faults and predicted potential problems in combination with the machine learning algorithm module;

[0014] The machine learning algorithm module is used to analyze the real-time monitoring data received by the data processing module, analyze actual faults, and predict equipment performance, discover potential problems in advance, and optimize the offshore flexible power transmission system;

[0015] The remote automation control module is used to issue instructions to the data processing module according to the analysis results of the machine learning algorithm module, and the data processing module controls the execution components in the offshore flexible power transmission system to perform corresponding operations according to the instructions to achieve the purpose of remote monitoring;

[0016] The human-computer interaction module is used to provide operators and managers with a simple and intuitive interaction interface, and the interaction interface is used to display an operable three-dimensional model.

[0017] The beneficial effects of the present invention are:

[0018] The offshore flexible direct current transmission project operation safety assurance system based on digital twin technology can effectively improve the operation safety of offshore flexible direct current transmission projects, reduce the risk of failures, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a system principle block diagram of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1 , an offshore flexible direct current transmission project operation safety assurance system, including a data acquisition module, a data processing module, and a digital twin model construction module.

[0023] The data acquisition module is responsible for collecting various data of offshore wind farms and transmission systems, including wind speed, current and voltage, real-time equipment operation status, and real-time environmental data, and uploading them to the data processing module. Sensors for collecting real-time environmental data include environmental sensors installed in the valve hall, AC room, and GIS room, including high-definition cameras, humidity sensors, temperature sensors, smoke sensors, and voltage and current detection modules. Among them, the voltage and current detection module can be used for common faults in offshore flexible direct current transmission systems, including single-pole grounding fault detection. The voltage and current detection module can be used to obtain the positive and negative voltage and current values ​​at the DC line protection installation site to perform fault start judgment and pole selection criteria.

[0024] The data processing module is used to process the real-time data uploaded by the data acquisition module in real time, and the processed real-time data is used to build a digital twin model.

[0025] The digital twin model construction module is used to use digital twin technology to build a virtual digital twin model. The virtual digital twin model is used to simulate the actual offshore flexible power transmission system, and can reflect the operating status of the offshore flexible power transmission system in real time and perform predictive analysis.

[0026] The digital twin model construction module includes a three-dimensional model construction module, a virtual map module, a machine learning algorithm module, a remote automation control module, and a human-computer interaction module.

[0027] Specifically, the three-dimensional model building module is used to build a three-dimensional model of the distribution automation monitoring system according to the initialization data collected by the data collection module.

[0028] The virtual map module is used to display the layout of the offshore flexible power transmission system and the status of each device in the system based on the constructed three-dimensional model, and is used to locate and isolate actual faults and predicted potential problems in combination with the machine learning algorithm module.

[0029] The machine learning algorithm module is used to analyze the real-time monitoring data received by the data processing module, analyze actual faults, and predict equipment performance, discover potential problems in advance, and optimize the offshore flexible power transmission system.

[0030] The remote automation control module is used to issue instructions to the data processing module based on the analysis results of the machine learning algorithm module. The data processing module controls the execution components in the offshore flexible power transmission system to perform corresponding operations according to the instructions to achieve the purpose of remote monitoring.

[0031] The human-computer interaction module is used to provide operators and managers with a simple and intuitive interactive interface, which is used to display an operable three-dimensional model.

[0032] The offshore flexible direct current transmission project operation safety assurance system based on digital twin technology can effectively improve the operation safety of offshore flexible direct current transmission projects, reduce the risk of failures, and has broad application prospects.

[0033] The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An offshore flexible direct current transmission project operation safety guarantee system, characterized by: It includes data acquisition module, data processing module and digital twin model building module; The data acquisition module is responsible for collecting various data of the offshore wind farm and the power transmission system, including wind speed, current and voltage, real-time operation status of equipment and real-time environmental data, and uploading them to the data processing module; The data processing module is used to process the real-time data uploaded by the data acquisition module in real time, and the processed real-time data is used to build a digital twin model; The digital twin model construction module is used to use digital twin technology to build a virtual digital twin model. The virtual digital twin model is used to simulate the actual offshore flexible power transmission system, and can reflect the operating status of the offshore flexible power transmission system in real time and perform predictive analysis.

2. The system according to claim 1, characterized in that: The sensors for collecting the real-time environmental data include environmental sensors respectively arranged in the valve hall, the communication room, and the GIS room, specifically including high-definition cameras, humidity sensors, temperature sensors, smoke sensors, and voltage and current detection modules.

3. The system according to claim 1, characterized in that: Digital twin model construction module, including 3D model construction module, virtual map module, machine learning algorithm module, remote automation control module and human-computer interaction module; The three-dimensional model building module is used to build a three-dimensional model of the distribution automation monitoring system according to the initialization data collected by the data collection module; The virtual map module is used to display the layout of the offshore flexible power transmission system and the status of each device in the system based on the constructed three-dimensional model, and is used to locate and isolate actual faults and predicted potential problems in combination with the machine learning algorithm module; The machine learning algorithm module is used to analyze the real-time monitoring data received by the data processing module, analyze actual faults, and predict equipment performance, discover potential problems in advance, and optimize the offshore flexible power transmission system; The remote automation control module is used to issue instructions to the data processing module according to the analysis results of the machine learning algorithm module, and the data processing module controls the execution components in the offshore flexible power transmission system to perform corresponding operations according to the instructions to achieve the purpose of remote monitoring; The human-computer interaction module is used to provide operators and managers with a simple and intuitive interaction interface, and the interaction interface is used to display an operable three-dimensional model.

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