A method and system for selecting a site for a flexible interconnection device based on an intelligent remote sensing system

Abstract

The present invention discloses a method and system for site selection of flexible interconnection devices based on an intelligent remote sensing system, including: pre-selecting a target area for site selection of flexible interconnection devices according to the site selection requirements of the flexible interconnection devices; scanning the site selection area of ​​the flexible interconnection devices of the converter station using the satellite of the intelligent remote sensing system and establishing a three-dimensional model; intelligently screening the three-dimensional model established by the intelligent remote sensing system to select a predetermined location; conducting a feasibility analysis on the selected predetermined locations through field investigation to screen out the most reasonable site selection location of the flexible interconnection devices of the converter station. The power quality and safety of the flexible interconnection devices in the distribution network are improved, the effective regulation of the current in each region is ensured, the limited resources are utilized, the power transmission efficiency is improved, and the current distribution of the distribution network is effectively controlled, the problem of imbalance in the output and consumption of the power system in different regions is solved, and the grid load balance in multiple regions is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of interconnection devices, and in particular to a flexible interconnection device site selection method and system based on an intelligent remote sensing system. Background Art

[0002] my country is a major energy country, and its power generation ranks among the top in the world, but coal-fired power accounts for as much as 70%. With the recent spread of the overseas epidemic, the prices of commodities controlled by Wall Street have risen one after another, and the price of coal mines has risen rapidly. my country's power generation system has been severely tested. In order to be lower than the carbon emission indicators stipulated by the central government, many provinces. Today's power system's new energy installed capacity ratio does not meet the requirements, and its power generation stability is far less than that of traditional thermal power generation. The problem of resource shortage restricts the development of all walks of life in my country. The efficiency of fault diagnosis and the utilization rate of electric energy need to be improved urgently, and the handling of problems during dispatching and operation must be faster and more accurate. This requires us to process information more accurately and efficiently. In comparison, the utilization rate of existing scarce resources is more important. In order to achieve reasonable distribution of electric energy and meet the carbon emission standards, flexible interconnection devices are used to achieve coordinated power supply in multiple adjacent areas. In response to these problems, we hope to find a site selection scheme for flexible interconnection devices of converter stations to achieve coordinated control in multiple target areas, solve the problem of imbalance between power system output and consumption in different regions, achieve grid load balance in multiple regions, and achieve the maximum utilization of coal resources.

[0003] At present, flexible interconnection devices are only used in a single area, such as local back-to-back converters, and do not realize site selection between multiple areas. The optimal location is often not selected, which can easily reduce the power quality and safety of flexible interconnection devices in the power grid, complicate the flow control in each area, and cause the problem of unbalanced output and consumption of power systems in different regions. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above existing problems, the present invention is proposed.

[0006] Therefore, the technical problem solved by the present invention is that the current flexible interconnection devices are only used in a single area, such as local back-to-back converters, and do not realize site selection between multiple areas. The optimal location is often not selected, which easily reduces the power quality and safety of the flexible interconnection devices in the power grid, complicates the flow control in each area, and causes the problem of unbalanced output and consumption of the power system in different areas.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a flexible interconnection device site selection method based on an intelligent remote sensing system, comprising: pre-selecting a flexible interconnection device site selection target area according to the flexible interconnection device site selection requirements; using the satellite of the intelligent remote sensing system to scan the converter station flexible interconnection device site selection area and establish a three-dimensional model; intelligently screening the three-dimensional model established by the intelligent remote sensing system to select a predetermined location; conducting a feasibility analysis on each of the screened predetermined locations through on-site investigation to screen out the most reasonable converter station flexible interconnection device site selection location.

[0008] As a preferred solution of the method for site selection of flexible interconnected devices based on intelligent remote sensing system described in the present invention, the load in multiple target areas and the installed capacity development data of new energy power plants are collected, so that the system can obtain the source-load change curve of each target area in the future period of time and predict the future growth curve, and select the target area with great growth potential.

[0009] As a preferred solution of the method for site selection of flexible interconnected devices based on an intelligent remote sensing system described in the present invention, intelligent screening is performed according to a model established by the intelligent remote sensing system to select locations with flat terrain and geographical conditions suitable for establishing new energy installations such as wind power plants or photovoltaic power plants.

[0010] As a preferred solution of the method for site selection of flexible interconnection device based on intelligent remote sensing system described in the present invention, it is characterized in that: the location of the centralized renewable energy power plant is that the renewable energy power plant is relatively concentrated and the load consumption is uneven. Generally speaking, it is located in remote areas far away from the city. The flexible interconnection device of the converter station is located between the renewable energy power plant and the city, connecting different busbars and loads, which can ensure the stability of urban and rural power grids.

[0011] As a preferred solution of the flexible interconnection device site selection method based on the intelligent remote sensing system described in the present invention, the intelligent remote sensing system is composed of satellite remote sensing and a receiving antenna server terminal, and the satellite remote sensing includes image acquisition, image transmission, image extraction and image registration; image transmission utilizes compressed sensing to extract a small part of the image for transmission; image extraction includes feature point extraction, feature point description, feature point matching and solution of parameters related to the conversion model.

[0012] As a preferred solution of the method for site selection of flexible interconnected devices based on intelligent remote sensing system described in the present invention, the three-dimensional model of the target area is intelligently screened, and the basis of the intelligent screening includes location, terrain flatness, light intensity, wind force and geothermal distribution.

[0013] As a preferred solution of the method for site selection of flexible interconnection devices based on intelligent remote sensing system described in the present invention, a feasibility analysis is conducted on the selected predetermined locations through field investigation, and research is conducted based on various factors such as humanities, history, convenience, economy, etc. in the area. Only after the feasibility is fully demonstrated can it be listed as a feasible solution.

[0014] As a preferred solution of the flexible interconnection device site selection system based on the intelligent remote sensing system described in the present invention, the intelligent remote sensing system scans the site selection area of ​​the converter station flexible interconnection device through a satellite and establishes a three-dimensional model, and intelligently screens the three-dimensional model established by the intelligent remote sensing system to select a predetermined location, conducts a feasibility analysis on the field investigation of each screened predetermined location, and screens out the most reasonable site selection location of the converter station flexible interconnection device.

[0015] As a preferred solution of the flexible interconnection device site selection system based on the intelligent remote sensing system described in the present invention, the intelligent remote sensing system includes satellite remote sensing and a receiving antenna server terminal, the satellite remote sensing includes image acquisition, image transmission, image extraction and image registration, the image transmission utilizes compressed sensing to extract a small part of the image for transmission, and the image extraction includes the extraction of feature points, the description of feature points, the matching of feature points and the solution of parameters related to the conversion model.

[0016] Beneficial effects of the present invention: The present invention combines the remote sensing system with the site selection plan for the flexible interconnection device, and based on the distribution and growth of power loads in multiple target areas, uses the data obtained by satellite remote sensing to extract images, and transmits them to the server terminal for three-dimensional modeling, ensuring the rationality and effectiveness of the final selection of the location of the flexible interconnection device. It improves the power quality and safety of the flexible interconnection device in the distribution network, ensures the effective regulation of the flow in each area, utilizes limited resources, improves the power transmission efficiency, and effectively controls the distribution of the distribution network flow, solves the problem of unbalanced output and consumption of the power system in different areas, and achieves multi-regional grid load balance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 A basic flow chart of a method and system for selecting a site for a flexible interconnection device based on an intelligent remote sensing system provided by one embodiment of the present invention;

[0019] Figure 2 A flowchart of a method and system for selecting a site for a flexible interconnection device based on an intelligent remote sensing system is provided in accordance with an embodiment of the present invention;

[0020] Figure 3 A method for selecting a site for a flexible interconnection device based on an intelligent remote sensing system and a flow chart of graphic registration of the system are provided in accordance with an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of a flexible interconnection device site selection method and system based on an intelligent remote sensing system is provided as an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] The present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] At the same time, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install, connect, connect" should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1

[0029] Reference Figures 1-2 , which is an embodiment of the present invention, provides a method for selecting a site for a flexible interconnection device based on an intelligent remote sensing system, comprising:

[0030] S1: Pre-selecting a target area for site selection of a flexible interconnection device according to the site selection requirements of the flexible interconnection device;

[0031] Collect the load and installed capacity development data of multiple target areas, so that the system can obtain the source-load change curve of each target area in the future and predict the future growth curve, and select the target area with great growth potential. You can search the network to find the installed capacity development data of new energy power plants and the load in the target area, collect the load and installed capacity data of new energy power plants in recent years in all target areas, and predict the load growth and new energy installed capacity growth in the target area in the next 5-10 years, so that the system can obtain the source-load change curve of each target area in the future. You can search the map to roughly find the target area for the site selection of flexible interconnection devices, and enter the next step after demarcating the current area.

[0032] According to the model established by the intelligent remote sensing system 100, intelligent screening is performed to select locations with flat terrain and suitable geographical conditions for establishing new energy installations such as wind power plants or photovoltaic power plants. The intelligent remote sensing system 100 performs remote sensing scanning on the pre-selected flexible interconnection device site selection target area, and establishes a three-dimensional model of the pre-selected flexible interconnection device site selection target area, which is convenient for understanding and investigating the pre-selected flexible interconnection device site selection target area, and screening is performed based on influencing factors such as location, flatness of terrain, light intensity, wind force, geothermal distribution, etc.

[0033] Its characteristic is the location of concentrated renewable energy power plants, which are relatively concentrated and have uneven load absorption. Generally speaking, they are located in remote areas far away from cities. The flexible interconnection device of the converter station is located between the renewable energy power plant and the city, connecting different busbars and loads, which can ensure the stability of urban and rural power grids.

[0034] S2: Using the satellite of the intelligent remote sensing system 100 to scan the site selection area of ​​the converter station flexible interconnection device and establish a three-dimensional model;

[0035] The intelligent remote sensing system 100 is composed of satellite remote sensing 101 and receiving antenna server terminal 101. The satellite remote sensing includes image acquisition 101a, image transmission 101b, image extraction 101c and image registration 101d;

[0036] Image transmission 101b uses compressed sensing to extract a small portion of the image for transmission;

[0037] Image extraction 101c includes extraction of feature points, description of feature points, matching of feature points and solution of parameters related to the conversion model.

[0038] Step S3 of the flexible interconnection device site selection plan based on the intelligent remote sensing system is characterized in that the site selection area of ​​the converter station flexible interconnection device is scanned by using the satellite image data collected in real time, extracting a small part of important data using compressed sensing technology and transmitting it to the server, establishing a scale space to extract image feature points, creating feature descriptors to achieve high-accuracy matching, and using a high-resolution remote sensing image registration algorithm based on local and global descriptions for the feature points in the reference image and the image to be registered. The three-dimensional reconstruction uses point cloud data registration, and the point clouds in different coordinate systems are converted to the same coordinate system to form a complete three-dimensional model of the area.

[0039] S3: Intelligently screen the three-dimensional model established by the intelligent remote sensing system 100 to select a predetermined location;

[0040] The three-dimensional model of the target area is intelligently screened based on location, terrain flatness, light intensity, wind speed and geothermal distribution.

[0041] S4: Conduct a feasibility analysis on the selected predetermined locations through field investigation to select the most reasonable location for the converter station flexible interconnection device.

[0042] The flexible interconnection device site selection plan based on the intelligent remote sensing system further screens out the most reasonable site selection location for the flexible interconnection device of the converter station. It is based on research on multiple factors such as humanities, history, convenience, and economy in the region. It can only be listed as a feasible plan after sufficient feasibility demonstration, ensuring the rationality, economy, and effectiveness of the site selection for the flexible interconnection device of the converter station.

[0043] Conduct a feasibility analysis on the selected predetermined locations through field investigation, and conduct research based on the humanities, history, convenience, economy and other factors in the area. Only after the feasibility is fully demonstrated can it be listed as a feasible plan. By combining the intelligent remote sensing system 100 with the flexible interconnection device site selection plan, based on the distribution and growth of power loads in multiple target areas, the data detected by satellite remote sensing is used for image extraction and transmitted to the server terminal for three-dimensional modeling, ensuring the rationality and effectiveness of the final selection of the flexible interconnection device location. The power quality and safety of the flexible interconnection device in the distribution network are improved, and the effective control of the flow in each area is guaranteed.

[0044] Example 2

[0045] Reference Figures 1 to 4 , which is another embodiment of the present invention. This embodiment is different from the first embodiment in that it provides a flexible interconnection device site selection system based on an intelligent remote sensing system. In order to verify and illustrate the technical effects used in this method, this embodiment uses a traditional technical solution to conduct a comparative test with the method of the present invention, and compares the test results by means of scientific argumentation to verify the real effect of this method.

[0046] A flexible interconnection device site selection system based on an intelligent remote sensing system includes an intelligent remote sensing system 100. The intelligent remote sensing system 100 uses a satellite to scan the site selection area of ​​the converter station flexible interconnection device and establish a three-dimensional model, and intelligently screens the three-dimensional model established by the intelligent remote sensing system to select a predetermined location, conducts a feasibility analysis on the selected predetermined locations, and selects the most reasonable site selection location for the converter station flexible interconnection device. The data on the load and installed capacity of new energy power plants in recent years in all target areas are collected to predict the load growth and new energy installed capacity growth in the target area in the next 5-10 years, so that the system can obtain the source-load situation change curve of each target area in the future.

[0047] The intelligent remote sensing system 100 includes a satellite remote sensing 101 and a receiving antenna server terminal 102. The satellite remote sensing 101 includes image acquisition 101a, image transmission 101b, image extraction 101c and image registration 101d. The image transmission 101b uses compressed sensing to extract a small part of the image for transmission. The image extraction 101c includes feature point extraction, feature point description, feature point matching and solution of parameters related to the conversion model.

[0048] By combining the intelligent remote sensing system 100 with the flexible interconnection device site selection scheme, based on the distribution and growth of power loads in multiple target areas, the data sensed by satellite remote sensing is used for image extraction, and transmitted to the server terminal for three-dimensional modeling, which ensures the rationality and effectiveness of the final selection of the flexible interconnection device location. The power quality and safety of the flexible interconnection device in the distribution network are improved, and the effective control of the flow in each area is ensured. It should be recognized that the embodiments of the present invention can be implemented or implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer-readable memory. The method can be implemented in a computer program using standard programming techniques-including a non-transitory computer-readable storage medium configured with a computer program, wherein the storage medium so configured enables the computer to operate in a specific and predefined manner-according to the methods and drawings described in the specific embodiments. Each program can be implemented in a high-level procedural or object-oriented programming language to communicate with a computer system. However, if necessary, the program can be implemented in assembly or machine language. In any case, the language can be a compiled or interpreted language. In addition, the program can be run on a programmed application-specific integrated circuit for this purpose.

[0049] Furthermore, the operations of the processes described herein may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described herein (or variations and / or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) that is executed collectively on one or more processors, by hardware, or a combination thereof. The computer program includes a plurality of instructions that may be executed by one or more processors.

[0050] Further, the method can be implemented in any type of computing platform that is operably connected to a suitable computer, including but not limited to a personal computer, a minicomputer, a mainframe, a workstation, a network or distributed computing environment, a separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, etc. Aspects of the present invention can be implemented in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, an optical read and / or write storage medium, a RAM, a ROM, etc., so that it can be read by a programmable computer, and when the storage medium or device is read by the computer, it can be used to configure and operate the computer to perform the process described herein. In addition, the machine-readable code, or part thereof, can be transmitted via a wired or wireless network. When such media includes instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor, the invention described herein includes these and other different types of non-transitory computer-readable storage media. When programmed according to the methods and techniques described in the present invention, the present invention also includes the computer itself. The computer program can be applied to input data to perform the functions described herein, thereby converting the input data to generate output data stored in a non-volatile memory. The output information can also be applied to one or more output devices such as a display. In a preferred embodiment of the present invention, the converted data represents a physical and tangible object, including a specific visual depiction of the physical and tangible object produced on a display.

[0051] As used in this application, the terms "component", "module", "system", etc. are intended to refer to a computer-related entity, which can be hardware, firmware, a combination of hardware and software, software, or software in operation. For example, a component can be, but is not limited to: a process running on a processor, a processor, an object, an executable file, a thread in execution, a program, and / or a computer. As an example, an application running on a computing device and the computing device can both be components. One or more components can exist in a process and / or thread in execution, and a component can be located in a computer and / or distributed between two or more computers. In addition, these components can be executed from various computer-readable media having various data structures thereon. These components can communicate in a local and / or remote process manner, such as according to a signal having one or more data packets (e.g., data from a component that interacts with another component in a local system, a distributed system, and / or interacts with other systems in a signal manner through a network such as the Internet).

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A method for selecting a site for a flexible interconnection device based on an intelligent remote sensing system, characterized in that: include: Pre-selecting a target area for site selection of a flexible interconnection device according to the site selection requirements of the flexible interconnection device; Using a satellite of an intelligent remote sensing system (100) to scan the site selection area of ​​a converter station flexible interconnection device and establish a three-dimensional model; Intelligently screening the three-dimensional model established by the intelligent remote sensing system (100) to select a predetermined location; Conduct feasibility analysis on the selected predetermined locations through field investigation to select the most reasonable location for the flexible interconnection device of the converter station; The method comprises using a satellite of the intelligent remote sensing system (100) to scan the site selection area of ​​the converter station flexible interconnection device and establish a three-dimensional model, including extracting images based on the distribution and growth of power loads in multiple target areas using data obtained by satellite remote sensing, and transmitting the images to a server terminal for three-dimensional modeling; Collecting the load and installed capacity development data of the new energy power plants in the target areas, so that the system can obtain the source-load change curve of each target area in the future and predict the future growth curve, and select the target area with great growth potential; Intelligent screening is performed based on the model established by the intelligent remote sensing system (100) to select locations with flat terrain and suitable geographical conditions for establishing wind power plants or photovoltaic power plants for new energy installation; The location of the centralized renewable energy power plant is that the renewable energy power plant is relatively concentrated and the load consumption is uneven. Generally speaking, it is located in a remote area far away from the city. The flexible interconnection device of the converter station is located between the renewable energy power plant and the city to connect different busbars and loads to ensure the stability of urban and rural power grids. The intelligent remote sensing system (100) is composed of a satellite remote sensing system (101) and a receiving antenna server terminal (102), wherein the satellite remote sensing system includes image acquisition (101a), image transmission (101b), image extraction (101c) and image registration (101d); Image transmission (101b) utilizes compressed sensing to extract a small portion of the image for transmission; Image extraction (101c) includes extraction of feature points, description of feature points, matching of feature points and solution of parameters related to the conversion model; Intelligently screen the three-dimensional model of the target area based on location, flatness, light intensity, wind speed and geothermal distribution; Conduct a feasibility analysis on the selected designated locations through field investigations, and study the humanities, history, convenience, and economy of the region. Only after the feasibility has been fully demonstrated can it be listed as a feasible option.

2. A flexible interconnection device site selection system based on an intelligent remote sensing system for implementing the flexible interconnection device site selection method based on an intelligent remote sensing system as claimed in claim 1, characterized in that: include: An intelligent remote sensing system (100) is provided, wherein the intelligent remote sensing system (100) uses a satellite to scan the converter station flexible interconnection device site selection area and establish a three-dimensional model, and intelligently screens the three-dimensional model established by the intelligent remote sensing system to select a predetermined location, conducts a feasibility analysis on each of the screened predetermined locations through on-site inspection, and screens out the most reasonable converter station flexible interconnection device site selection location.

3. The flexible interconnection device site selection system based on intelligent remote sensing system as claimed in claim 2, characterized in that: The intelligent remote sensing system (100) comprises a satellite remote sensing (101) and a receiving antenna server terminal (102); the satellite remote sensing (101) comprises image acquisition (101a), image transmission (101b), image extraction (101c) and image registration (101d); the image transmission (101b) utilizes compressed sensing to extract a small portion of an image for transmission; the image extraction (101c) comprises extraction of feature points, description of feature points, matching of feature points and solution of parameters related to a conversion model.

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