Method and system for optimizing a live-line work helicopter basket using testing and simulation

Abstract

The application provides a method and system for optimizing a live-line work basket of a helicopter by using tests and simulations, the method comprising: performing a live-line work test on a current basket to obtain an easy-discharge position of the current basket; using electrostatic field simulation to obtain an insulation weak point of a current basket model; comparing the easy-discharge position of the current basket and the insulation weak point of the current basket model to determine a position of electric field concentration of the current basket; and based on the position of electric field concentration of the current basket, using a circular arc method or a method of setting a voltage grading ring to optimize the structure of the current basket model. The application optimizes the structure of the current basket model by using the circular arc method or the method of setting the voltage grading ring, reduces the sharp-point design, makes the electric field distribution more uniform, prevents the sharp-point discharge, enables the work personnel to be safely transported to the conductor for performing the maintenance work on the line, and reduces the risk caused by the live-line work object line of the helicopter.

Description

Technical Field

[0001] This invention relates to the field of live-line working tools and equipment for AC / DC lines, and more specifically, to a method and system for optimizing a helicopter live-line working basket using testing and simulation. Background Technology

[0002] Ultra-high voltage (UHV) power grids occupy a core position in the national power grid, and once put into operation, it is difficult to shut down them for maintenance. Therefore, live-line working, as an important technical means for the operation and maintenance of UHV power grids, is of great significance to ensuring the safe, stable, and reliable operation of UHV power grids.

[0003] The helicopter basket method is an important method in live-line maintenance. Its basic working principle is as follows: After the helicopter suspends the basket directly above the conductor, it gradually lowers the basket so that it straddles the top two conductors of a 6 or 8-split conductor. The basket is equipped with pulleys so that it can slide on the conductor. After the basket slides to the relevant position, it is fixed by a braking device. Then, the maintenance personnel can directly inspect the damaged parts of the conductor from inside the basket. If necessary, people can also climb out of the basket and enter the conductor to carry out maintenance.

[0004] However, due to the large size of the suspended platform used in live-line work, its equivalent capacitance is much larger than that of a human body. The discharge energy at the moment of establishing and removing potential can reach several joules (500kV voltage). The suspended platform has sharp edges, which can easily cause charge accumulation, leading to electric field distortion. Compared with other parts, the electric field strength is greater, making it easier for point discharge to occur. This increases the potential risk of live-line work to the normal operation of transmission lines, threatens the safety of maintenance personnel, and may also cause phase-to-phase and pole-to-pole short circuits in the transmission lines, affecting the normal operation of the project.

[0005] Due to the structural limitations of the suspended platform, a sufficiently large air gap is required for helicopter live-line work to prevent phase-to-phase or pole-to-pole discharges. However, existing projects have not incorporated the requirement for helicopter live-line work as a necessary condition for their construction. Therefore, without optimizing the suspended platform, the applicability of helicopter live-line work will be reduced, hindering its implementation.

[0006] Meanwhile, for live-line work, in order to ensure the smooth operation of live-line work, the size or dimensions of the suspended platform cannot be significantly reduced. Otherwise, the load of a single operation will be too low and it will be impossible to load too many necessary items, which will seriously affect the efficiency of the work and the scope of the operation. Summary of the Invention

[0007] In view of this, the present invention proposes a method and system for optimizing a helicopter live-line working platform using experiments and simulations, aiming to solve the problem that partial discharge and tip discharge occur during the process of the existing platform entering the electric field, which increases the potential risk to the normal operation of transmission lines during live-line working.

[0008] This invention proposes a method for optimizing a helicopter live-line working platform using experiments and simulations. The method includes: an experimental step, conducting a live-line working experiment on the current platform, recording the discharge voltage and discharge location at different positions during the live-line operation, and obtaining the easily dischargeable locations of the current platform; a simulation step, modeling the current platform, using electrostatic field simulation to calculate the electric field distribution of the current platform model, and obtaining the insulation weak points of the current platform model; an analysis step, comparing the easily dischargeable locations of the current platform obtained in the experimental step with the insulation weak points of the current platform model obtained in the simulation step, and determining the locations of electric field concentration in the current platform; and a platform optimization step, based on the locations of electric field concentration determined in the analysis step, optimizing the structure of the current platform model using an arc-shaped approach or by setting an equalizing ring, to obtain an optimized platform model.

[0009] Furthermore, in the above-mentioned method of optimizing the helicopter live-line working platform using experiments and simulations, the structural optimization of the current platform model by adopting an arc-shaped approach or setting an equalizing ring is specifically as follows: if the location of the electric field concentration of the current platform includes the top corner of the platform, the top corner of the platform is processed by an arc-shaped approach, so that the support frame of the platform and the top connecting frame are connected by an upper arc transition section.

[0010] Furthermore, in the above-mentioned method of optimizing the helicopter live-line working platform using experiments and simulations, the structural optimization of the current platform model by adopting an arc-shaped approach or setting an equalizing ring is specifically as follows: if the location of the electric field concentration of the current platform includes the lower support angle of the platform, the lower support angle of the platform is processed by an arc-shaped approach, so that the bottom end of the outer vertical support rod and the bottom end of the inner vertical support rod are connected by a lower arc transition section.

[0011] Furthermore, in the above-mentioned method for optimizing the live-line working platform of a helicopter using experiments and simulations, the structural optimization of the current platform model by adopting an arc-shaped approach or setting an equalizing ring is specifically as follows: if the location of the electric field concentration of the current platform includes the end position of the platform support frame, the platform support frame is processed by setting an equalizing ring, so that an equalizing ring is set on the outside of the platform support frame to shield the electric field on the outside of the platform support frame.

[0012] Furthermore, the above-mentioned method for optimizing the helicopter live-line working platform using experiments and simulations includes the following step after the platform optimization step: a verification step, which uses electrostatic field simulation to calculate the electric field distribution of the optimized platform model and verify whether there are any electric field concentration locations in the electric field distribution of the optimized platform model.

[0013] On the other hand, this invention also proposes a system for optimizing a helicopter live-line working platform using experiments and simulations. This system includes: an experimental module for conducting live-line working experiments on the current platform, recording the discharge voltage and discharge location at different positions during the live-line working process, and obtaining the easily dischargeable locations of the current platform; a simulation module for modeling the current platform, using electrostatic field simulation to calculate the electric field distribution of the current platform model, and obtaining the insulation weak points of the current platform model; an analysis module for comparing the easily dischargeable locations of the current platform obtained by the experimental module and the insulation weak points of the current platform model obtained by the simulation module, and determining the locations of electric field concentration in the current platform; and a platform optimization module for optimizing the structure of the current platform model based on the locations of electric field concentration determined by the analysis module, using either a circular arc method or by setting an equalizing ring, to obtain an optimized platform model.

[0014] Furthermore, in the aforementioned system for optimizing a helicopter live-line working platform using experiments and simulations, the structural optimization of the current platform model is achieved by employing an arc-shaped approach or by setting an equalizing ring. Specifically, if the location of the electric field concentration in the current platform includes the top corner of the platform, the top corner of the platform is processed using an arc-shaped approach, so that the support frame of the platform and the top connecting frame are connected by an upper arc transition section.

[0015] Furthermore, in the aforementioned system for optimizing a helicopter live-line working platform using experiments and simulations, the structural optimization of the current platform model is achieved by employing an arc-shaped approach or by setting an equalizing ring. Specifically, if the location of the electric field concentration in the current platform includes the lower support angle of the platform, the lower support angle of the platform is processed using an arc-shaped approach, so that the bottom end of the outer vertical support rod and the bottom end of the inner vertical support rod are connected by a lower arc transition section.

[0016] Furthermore, in the aforementioned system for optimizing a helicopter live-line working platform using experiments and simulations, the structural optimization of the current platform model is achieved by employing an arc-shaped approach or by setting an equipotential ring. Specifically, if the location of the electric field concentration in the current platform includes the end of the platform support frame, the platform support frame is treated by setting an equipotential ring, so that an equipotential ring is set on the outside of the platform support frame to shield the electric field on the outside of the platform support frame.

[0017] Furthermore, the aforementioned system for optimizing a helicopter-mounted work platform using experiments and simulations also includes a verification module for calculating the electric field distribution of the optimized platform model using electrostatic field simulation, and verifying whether there are any concentrated electric field locations in the electric field distribution of the optimized platform model.

[0018] The present invention provides a method and system for optimizing a helicopter live-line working platform using experiments and simulations. By adopting an arc-shaped design or setting an equalizing ring, the structure of the current platform model is optimized, reducing the number of sharp points and making the electric field distribution more uniform to prevent point discharge. This allows workers to be safely transported to the conductor for line inspection and maintenance. It shortens the distance between phase-to-phase and pole-to-pole conductors required for helicopter live-line working, expanding the applicable scope of helicopter live-line working. At the same time, it reduces the possibility of point discharge during the platform's entry into the electric field, improving the safety of transmission lines and workers during helicopter live-line working. In other words, it not only protects the safety of maintenance personnel but also reduces the potential risks of helicopter live-line working to the normal operation of the line, improving the safety of helicopter live-line working. It solves the problem that existing platforms may experience partial discharge leading to point discharge during the platform's entry into the electric field, increasing the potential risks of helicopter live-line working to the normal operation of transmission lines. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A flowchart illustrating the method for optimizing a helicopter live-line working platform using experiments and simulations, as provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the current suspended platform structure; Figure 3 This is a schematic diagram of the optimized suspended platform provided in an embodiment of the present invention; Figure 4 This is another flowchart illustrating the method for optimizing a helicopter live-line working platform using experiments and simulations, as provided in this embodiment of the invention. Figure 5 The structural block diagram of the system for optimizing a helicopter live-line working basket using experiments and simulations is provided for embodiments of the present invention. Detailed Implementation

[0020] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Method Implementation Examples: See Figure 1 This is a flowchart illustrating a method for optimizing a helicopter live-line working platform using experiments and simulations, as provided in an embodiment of the present invention. As shown, the optimization method includes the following steps: Test step S1: Conduct a live-line working test on the current suspended platform, record the discharge voltage and discharge position at different locations during the live-line working process, and obtain the easily dischargeable position of the current suspended platform.

[0022] Specifically, the current suspended platform is a saddle-type suspended platform structure, which allows for live-line work on the current suspended platform. For example, the current suspended platform can be hoisted and secured to the conductor, and the conductor can be energized to conduct a live-line work test on the current suspended platform. During the live-line work test on the current suspended platform, the discharge voltage and discharge position under different positions of the current suspended platform are recorded, thereby determining the design weak points of the current suspended platform, i.e., the easily discharged positions.

[0023] In simulation step S2, the current suspended platform is modeled, and electrostatic field simulation is used to calculate the electric field distribution of the current suspended platform model to obtain the insulation weak points of the current suspended platform model.

[0024] Specifically, firstly, the current suspended platform is modeled based on its current structure to obtain the current suspended platform model; then, electrostatic field simulation is used to calculate the electric field distribution of the current suspended platform model to obtain the location of the electric field concentration in the suspended platform model, which is the insulation weakness point of the current suspended platform model.

[0025] In analysis step S3, the locations of easy discharge points of the current suspended basket obtained in the experimental step are compared with the insulation weak points of the current suspended basket model obtained in the simulation step to determine the location of the current electric field concentration of the suspended basket.

[0026] Specifically, the location of electric field concentration is determined by comparing the easily dischargeable location of the current suspended platform obtained in experimental step S2 with the insulation weakness point of the current suspended platform model obtained in simulation step S3. Normally, the two correspond, verifying the effectiveness of the simulation; if they do not correspond, the current suspended platform model can be checked and simulated again. In this embodiment, as... Figure 3As shown, based on the simulation and test results, the locations of electric field concentration in the current suspended platform, i.e., the weak points in insulation, can be determined as: the top corner A of the suspended platform, the lower support corner B of the suspended platform, and the end position C of the suspended platform support frame.

[0027] In step S4, based on the location of the electric field concentration in the current suspended platform determined in the analysis step, the current suspended platform model is structurally optimized by using an arc-shaped method or by setting an equalizing ring, resulting in an optimized suspended platform model.

[0028] Specifically, based on the location of the current electric field concentration in the suspended platform determined by the analysis steps, the current suspended platform model is structurally optimized using either an arc-shaped approach or by setting an equalizing ring, resulting in an optimized suspended platform model. Based on this optimized model, the optimized suspended platform is then fabricated for live-line work. Specifically, if the location of the current electric field concentration includes the upper corner A of the suspended platform, the upper corner A is processed using an arc-shaped approach, connecting the support frame 2 and the top connecting frame 1 via an upper arc transition section 3. This upper arc transition section 3 homogenizes the electric field distribution at the connection point between the support frame 2 and the top connecting frame 1, making the electric field distribution more uniform and preventing point discharge. This allows workers to be safely transported to the conductors for line inspection and maintenance, shortening the distance between phase-to-phase and pole-to-pole conductors required for live-line work by helicopter. In this embodiment, the upper arc transition section 3 reduces point discharge at the existing upper corner of the suspended platform, improving the safety of live-line work by helicopter using the suspended platform. If the current location of the electric field concentration in the suspended platform includes the lower support angle B, the lower support angle B is treated with an arc, so that the bottom end of the outer vertical support rod 21 and the bottom end of the inner vertical support rod 22 are connected by a lower arc transition section 24. This homogenizes the electric field distribution at the bottom connection between the outer vertical support rod 21 and the inner vertical support rod 22, making the electric field distribution more uniform and preventing point discharge. This allows workers to be safely transported to the conductor for line inspection and maintenance, improving the safety of live-line work by helicopter using the suspended platform. It also shortens the distance between phase-to-phase and pole-to-pole conductors required for live-line work by helicopter. The lower arc transition section 24 can reduce point discharge at the existing lower support angle of the suspended platform. That is, by cleverly transitioning the relatively sharp lower corner of the suspended platform with an arc, the safety of live-line work by helicopter using the suspended platform is improved. If the current location of the concentrated electric field in the suspended platform includes position C at the end of the suspended platform support frame, the suspended platform support frame is treated by setting an equipotential ring. This allows the equipotential ring 5 to be set on the outside of the suspended platform support frame to shield the electric field on the outside of the suspended platform support frame, making the electric field distribution on the outside of the support frame 2 uniform, preventing the occurrence of tip discharge on the outside of the support frame 2. This allows the workers to be safely transported to the conductor to carry out line inspection and maintenance work, further improving the safety of helicopter live-line work through the suspended platform, and further reducing the distance between phase-to-phase and pole-to-pole conductors required for helicopter live-line work.

[0029] See Figure 3 This is a schematic diagram of the optimized suspended platform provided in an embodiment of the present invention. As shown in the figure, the optimized suspended platform includes: a top connecting frame 1 and two support frames 2; wherein, both support frames 2 are located below the top connecting frame 1, and the two support frames 2 are respectively connected to both ends of the top connecting frame 1 (e.g., Figure 3The left and right ends shown are connected, and each support frame 2 is connected to the top connecting frame 1 through an upper arc transition section 3, which is used to equalize the electric field distribution at the connection between each support frame 2 and the top connecting frame 1.

[0030] In practice, a saddle-shaped suspended platform structure is formed between the top connecting frame 1 and the two support frames 2. The two support frames 2 provide a construction and maintenance platform so that personnel working on live lines can stand inside the support frames 2 and move with the suspended platform. In this embodiment, the top ends of the support frames 2 can be welded to the ends of the top connecting frame 1 to form an integral suspended platform structure. To prevent sharp points from forming at the connection between the top connecting frame 1 and the two support frames 2, which could lead to concentrated electric field distortion and tip discharge, an upper arc transition section 3 is provided between the support frame 2 and the top connecting frame 1. This arc-shaped treatment homogenizes the electric field distribution at the connection between the support frame 2 and the top connecting frame 1, making the electric field distribution more uniform and preventing tip discharge. This allows workers to be safely transported to the conductor for line inspection and maintenance, shortens the distance between phase-to-phase and pole-to-pole conductors required for helicopter live-line work, expands the applicable scope of helicopter live-line work, and reduces the possibility of tip discharge during the process of the basket entering the electric field. This improves the safety of the transmission line and the workers during helicopter live-line work. In other words, it not only protects the safety of maintenance personnel but also reduces the potential risks of helicopter live-line work to the normal operation of the line, improving the safety of helicopter live-line work and solving the problem that existing baskets may experience partial discharge leading to tip discharge during the process of entering the electric field, increasing the potential risks of helicopter live-line work to the normal operation of the transmission line. In this embodiment, the upper arc transition section 3 can reduce the tip discharge at the top corner of the existing basket and improve the safety of live-line work of helicopters through the basket.

[0031] In this embodiment, a locking structure 4 is provided below the top connecting frame 1 between the two support frames 2 for locking onto the wire so as to move along the wire.

[0032] See also Figure 3 To reduce tip discharge at the ends of the suspended platform support frame, i.e., at the outer connection points between the support rods of the support frame, preferably, each support frame 2 should be positioned on the side facing away from the other support frame 2 (e.g., Figure 3Equalizing rings 5 ​​are provided on both the left side of the left support frame 2 and the right side of the right support frame 2. These rings are used to shield the areas where the electric field is concentrated on the outside of the support frame 2, thereby achieving voltage equalization. Specifically, the equalizing rings 5 ​​can be suspended on the outside of the support frame 2 or fixedly connected to the support frame 2 by welding or other connection methods. They can shield the areas where the electric field is concentrated on the outside of the support frame 2, that is, shield the electric field at the outer end of the support frame 2, thereby achieving voltage equalization. This makes the electric field distribution on the outside of the support frame 2 uniform, preventing point discharge on the outside of the support frame 2. This allows workers to be safely transported to the conductor for line inspection and maintenance, further improving the safety of live-line work by helicopter using a suspended platform and further shortening the distance between phase-to-phase and pole-to-pole conductors required for live-line work by helicopter.

[0033] See also Figure 3 Each support frame 2 includes two outer vertical support rods 21 and two inner vertical support rods 22; wherein the two outer vertical support rods 21 and the two inner vertical support rods 22 are arranged in a quadrilateral shape; the two outer vertical support rods 21, the two inner vertical support rods 22, and adjacent outer vertical support rods 21 and inner vertical support rods 22 are all connected by a transverse connecting rod 23, which is used to connect the two outer vertical support rods 21 and the two inner vertical support rods 22 into an integral frame.

[0034] In practice, Figure 3 The structure can be shown on one side, with two rows arranged symmetrically front and back. Each row has one outer vertical support rod 21 and one inner vertical support rod 22, for a total of two outer vertical support rods 21 and two inner vertical support rods 22. A multi-layered connection structure is provided between the two outer vertical support rods 21 and the two inner vertical support rods 22. Each layer of the connection structure includes four transverse connecting rods 23, which respectively connect the two outer vertical support rods 21, the two inner vertical support rods 22, and two sets of adjacent outer vertical support rods 21 and inner vertical support rods 22, so that the two outer vertical support rods 21 and the two inner vertical support rods 22 are connected by four transverse connecting rods 23 to form an overall skeleton structure. In this embodiment, the top ends of the two outer vertical support rods 21 and the two inner vertical support rods 22 are all connected to the top connecting frame 1. The top ends of the two outer vertical support rods 21 are connected to the top connecting frame 1 through the upper transition arc segment 3, so that an arc structure is formed between the outer vertical support rods 21 and the top connecting frame 1. Compared with the pointed structure, the pointed discharge can be avoided. The inner vertical support rods 22 are located on the inner side and are far away from other wires, so they will not generate discharge and therefore do not require an arc structure.

[0035] In this embodiment, the lengths of the two outer vertical support rods 21 are longer than the lengths of the two inner vertical support rods 22. Preferably, the top ends of the two outer vertical support rods 21 and the two inner vertical support rods 22 are flush, and the bottom ends of the two outer vertical support rods 21 are located below the bottom ends of the two inner vertical support rods 22. To improve the stability of the support frame 2, preferably, a connecting structure is provided between the bottom ends of the outer vertical support rods 21 and the bottom ends of the inner vertical support rods 22. To prevent sharp points from forming at the bottom of the outer vertical support rod 21, which could lead to tip discharge, it is further preferred that the bottom ends of adjacent outer vertical support rods 21 and inner vertical support rods 22 are connected by a lower arc transition section 24. This connects the outer and inner vertical support rods 21 and 22 to homogenize the electric field distribution at the bottom connection point, making the electric field distribution more uniform and preventing tip discharge. This allows workers to be safely transported to the conductor for line inspection and maintenance, improving the safety of live-line work via the basket and shortening the distance between phase-to-phase and pole-to-pole conductors required for live-line work. In this embodiment, the lower arc transition section 24 reduces tip discharge at the lower support corner of the existing basket by cleverly transitioning the relatively sharp lower corner of the basket with an arc, thus improving the safety of live-line work via the basket.

[0036] In this embodiment, the transverse connecting rod 23 has three layers, forming three pointed positions. To shield the electric field at the pointed positions of the three layers, preferably, the equalizing ring 5 can be relatively large, enclosing the outer pointed positions of the connection points of each layer of transverse connecting rod 23 inside the equalizing ring 5, thereby shielding the electric field at the outer pointed positions of the connection points of each layer of transverse connecting rod 23. Of course, an equalizing ring can also be provided at each outer pointed position of the connection points of each layer of transverse connecting rod 23. That is, each outer vertical support rod 21 of each support frame 2 is provided with an equalizing ring 5 at the connection point between the outer vertical support rod 21 and the transverse connecting rod 23, for shielding the connection point between the transverse connecting rod 23 and the outer vertical support rod 21 to achieve the purpose of equalizing voltage.

[0037] In this embodiment, the suspended platform may further include: a deck, ladder, and railings mounted on the support frame. Since the suspended platform needs to carry personnel performing live electrical work, it requires a frame base support module. The frame base components are the main load-bearing components of the suspended platform, so the materials used in the suspended platform must ensure sufficient strength. Specifically, the top connecting frame 1 and / or the support frame 2 are both steel structures.

[0038] See Figure 4 This is another flowchart illustrating the method for optimizing a helicopter live-line working platform using experiments and simulations, as provided in this embodiment of the invention. As shown in the figure, the optimization method includes the following steps: Test step S1: Conduct a live-line working test on the current suspended platform, record the discharge voltage and discharge position at different locations during the live-line working process, and obtain the easily dischargeable position of the current suspended platform.

[0039] In simulation step S2, the current suspended platform is modeled, and electrostatic field simulation is used to calculate the electric field distribution of the current suspended platform model to obtain the insulation weak points of the current suspended platform model.

[0040] In analysis step S3, the locations of easy discharge points of the current suspended basket obtained in the experimental step are compared with the insulation weak points of the current suspended basket model obtained in the simulation step to determine the location of the current electric field concentration of the suspended basket.

[0041] In step S4, based on the location of the electric field concentration in the current suspended platform determined in the analysis step, the current suspended platform model is structurally optimized by using an arc-shaped method or by setting an equalizing ring, resulting in an optimized suspended platform model.

[0042] In step S5, electrostatic field simulation is used to calculate the electric field distribution of the optimized suspended basket model and verify whether there are any concentrated electric field locations in the optimized suspended basket model.

[0043] Specifically, electrostatic field simulation was used to calculate the electric field distribution of the optimized suspended platform model, verifying whether there were any concentrated electric field locations. This demonstrates that the optimized suspended platform in this embodiment was verified through simulation. The electric field distribution at the weak points of the arc-shaped suspended platform was reduced by 20%. Simulation results show that using the optimized suspended platform to simulate typical live-line working conditions of helicopters increased the discharge voltage by approximately 10%. Furthermore, the optimized suspended platform model can be further processed, and live-line working tests can be conducted to further verify its performance.

[0044] Taking the helicopter-borne basket method for live-line work on ±1100kV UHVDC transmission lines as an example, the process involves using a helicopter to transport the basket (the arc-shaped basket in this embodiment) to the conductor. The arc-shaped basket is then placed over the conductor. Live-line workers can inspect damaged sections of the conductor from inside the basket, or, if necessary, climb out of the basket to perform inspections on the conductor. During the basket's entry into the electric field, the arc-shaped structure reduces the possibility of local ionization and lowers the required 0.5m air gap, thus expanding the applicability of the helicopter-borne basket method for live-line work.

[0045] In summary, the method for optimizing the helicopter live-line working platform using experiments and simulations provided in this embodiment optimizes the structure of the current platform model by adopting an arc-shaped approach or setting an equalizing ring. This reduces the number of sharp points, resulting in a more uniform electric field distribution and preventing point discharge. Consequently, it allows workers to be safely transported to the conductors for line inspection and maintenance. This shortens the distance between phase-to-phase and pole-to-pole conductors required for helicopter live-line working, expanding the applicability of helicopter live-line working. At the same time, it reduces the possibility of point discharge during the platform's entry into the electric field, improving the safety of transmission lines and workers during helicopter live-line working. In other words, it not only protects the safety of maintenance personnel but also reduces the potential risks of helicopter live-line working to the normal operation of the line, improving the safety of helicopter live-line working. It solves the problem that existing platforms may experience partial discharge leading to point discharge during the entry of the platform into the electric field, increasing the potential risks of helicopter live-line working to the normal operation of transmission lines.

[0046] System Implementation Example: See Figure 5 This is a structural block diagram of a system for optimizing a helicopter live-line working platform using experiments and simulations, provided in an embodiment of the present invention. As shown in the figure, the system includes: an experiment module 100, a simulation module 200, an analysis module 300, a platform optimization module 400, and a verification module 500. The experiment module 100 is used to conduct live-line working experiments on the current platform, recording the discharge voltage and discharge location at different positions during the live-line working process, and obtaining the easily dischargeable locations of the current platform. The simulation module 200 is used to model the current platform, using electrostatic field simulation to calculate the electric field distribution of the current platform model, and obtain the insulation weak points of the current platform model. The analysis module 300 is used to... The test module compares the easily dischargeable locations of the current suspended platform with the insulation weak points of the current suspended platform model obtained by the simulation module to determine the location of the current suspended platform's electric field concentration. The suspended platform optimization module 400 is used to optimize the structure of the current suspended platform model based on the location of the current suspended platform's electric field concentration determined by the analysis module, using either an arc-shaped approach or the setting of an equalizing ring, to obtain an optimized suspended platform model. The verification module 500 is used to calculate the electric field distribution of the optimized suspended platform model using electrostatic field simulation to verify whether there is a location of electric field concentration in the optimized suspended platform model.

[0047] Furthermore, the current suspended platform model is structurally optimized by using an arc-shaped approach or by setting an equalizing ring. Specifically, if the location of the electric field concentration in the current suspended platform includes the top corner of the platform, the top corner of the platform is processed by an arc-shaped approach, so that the support frame of the platform and the top connecting frame are connected by an upper arc transition section.

[0048] Furthermore, the current suspended platform model is structurally optimized by using an arc-shaped approach or by setting an equalizing ring. Specifically, if the location of the electric field concentration in the current suspended platform includes the lower support angle of the suspended platform, the lower support angle of the suspended platform is processed by an arc-shaped approach, so that the bottom end of the outer vertical support rod and the bottom end of the inner vertical support rod are connected by a lower arc transition section.

[0049] Furthermore, the current suspended platform model is structurally optimized by using an arc-shaped approach or by setting an equalizing ring. Specifically, if the location where the electric field of the current suspended platform is concentrated includes the end of the suspended platform support frame, the suspended platform support frame is treated by setting an equalizing ring, so that an equalizing ring is set on the outside of the suspended platform support frame to shield the electric field on the outside of the suspended platform support frame.

[0050] The specific implementation process of the test module 100, simulation module 200, analysis module 300, basket optimization module 400 and verification module 500 can be referred to the above method embodiment, and will not be repeated here.

[0051] Since the above method embodiments have the above effects, the system embodiments also have corresponding technical effects.

[0052] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0053] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0054] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0055] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for optimizing a helicopter live-line working platform using experiments and simulations, characterized in that, Includes the following steps: The test procedure involves conducting a live-line working test on the current suspended platform, recording the discharge voltage and discharge location at different positions during the live-line working process, and obtaining the easily dischargeable positions of the current suspended platform. The simulation process involves modeling the current suspended platform, using electrostatic field simulation to calculate the electric field distribution of the current suspended platform model, and identifying the insulation weaknesses of the current suspended platform model. The analysis step compares the easily dischargeable locations of the current suspended basket obtained in the experimental step with the insulation weak points of the current suspended basket model obtained in the simulation step to determine the location of the current electric field concentration in the suspended basket. The suspended platform optimization step involves optimizing the current suspended platform model based on the location of the electric field concentration determined in the analysis step, using either an arc-shaped approach or a voltage equalization ring, to obtain the optimized suspended platform model. The structural optimization of the current suspended platform model is carried out by adopting an arc-shaped approach or setting an equalizing ring, specifically as follows: If the current location of the electric field concentration in the suspended platform includes the top corner of the suspended platform, the top corner of the suspended platform is treated with an arc, so that the support frame of the suspended platform and the top connecting frame are connected by an upper arc transition section. If the current location of the electric field concentration in the suspended platform includes the lower support angle of the suspended platform, the lower support angle of the suspended platform is processed by rounding, so that the bottom end of the outer vertical support rod and the bottom end of the inner vertical support rod are connected by a lower rounded transition section. If the current location of the electric field concentration in the suspended platform includes the end of the suspended platform support frame, the suspended platform support frame should be treated by setting an equipotential ring, so that the equipotential ring is set on the outside of the suspended platform support frame to shield the electric field on the outside of the suspended platform support frame.

2. The method for optimizing a helicopter live-line working platform using experiments and simulations according to claim 1, characterized in that, Following the basket optimization step, the following steps are also included: The verification step involves using electrostatic field simulation to calculate the electric field distribution of the optimized suspended platform model and verify whether there are any concentrated electric field locations in the optimized suspended platform model.

3. A system for optimizing a helicopter-mounted power work platform using testing and simulation, characterized in that, include: The test module is used to conduct live-line working tests on the current suspended platform, record the discharge voltage and discharge position at different locations during the live-line working process of the current suspended platform, and obtain the easily dischargeable positions of the current suspended platform; The simulation module is used to model the current suspended platform. It uses electrostatic field simulation to calculate the electric field distribution of the current suspended platform model and obtain the insulation weak points of the current suspended platform model. The analysis module is used to compare the easily dischargeable locations of the current suspended basket obtained by the test module with the insulation weak points of the current suspended basket model obtained by the simulation module, and determine the location of the current electric field concentration in the suspended basket. The suspended platform optimization module is used to optimize the structure of the current suspended platform model based on the location of the current electric field concentration of the suspended platform determined by the analysis module, by using an arcing method or setting an equalizing ring, to obtain an optimized suspended platform model. The structural optimization of the current suspended platform model is carried out by adopting an arc-shaped approach or setting an equalizing ring, specifically as follows: If the current location of the electric field concentration in the suspended platform includes the top corner of the suspended platform, the top corner of the suspended platform is treated with an arc, so that the support frame of the suspended platform and the top connecting frame are connected by an upper arc transition section. The structural optimization of the current suspended platform model is carried out by adopting an arc-shaped approach or setting an equalizing ring, specifically as follows: If the current location of the electric field concentration in the suspended platform includes the lower support angle of the suspended platform, the lower support angle of the suspended platform is processed by rounding, so that the bottom end of the outer vertical support rod and the bottom end of the inner vertical support rod are connected by a lower rounded transition section. The structural optimization of the current suspended platform model is carried out by adopting an arc-shaped approach or setting an equalizing ring, specifically as follows: If the current location of the electric field concentration in the suspended platform includes the end of the suspended platform support frame, the suspended platform support frame should be treated by setting an equipotential ring, so that the equipotential ring is set on the outside of the suspended platform support frame to shield the electric field on the outside of the suspended platform support frame.

4. The system for optimizing a helicopter live-line working platform using testing and simulation according to claim 3, characterized in that, Also includes: The verification module is used to calculate the electric field distribution of the optimized suspended basket model using electrostatic field simulation, and to verify whether there are any concentrated electric field locations in the optimized suspended basket model.

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