69novels Chapter 337 Ultra-high Voltage Transmission Technology 2
Chapter 337 Ultra-high Voltage Transmission Technology 2
Zhang Guoqiang immediately stepped forward and said, "Mr. Li, don't worry, we will fully cooperate. However, I'm afraid that the equipment and materials required for this technology cannot be produced by existing factories."
Li Yang nodded and said, "I have already thought about this issue. We need to start the research and development and production of related equipment and materials at the same time. I will apply to my superiors to mobilize resources across the country to support our project."
In this way, under the leadership of Li Yang, the engineers of the nuclear power plant began to work day and night. They faced problems, overcame technical difficulties, and worked hard every day to realize the dream of ultra-high voltage transmission technology.
At the same time, related factories across the country have also begun intensive preparations, from special insulation materials to super-large transformers, from high-strength poles to sophisticated monitoring equipment, every link is being carried out intensively.
However, just as the project was in full swing, an unexpected problem suddenly arose.
Late one night, Li Yang was working on the latest design in his office when he suddenly received an urgent call from Engineer Wang, the team leader in charge of transmission line design.
"Engineer Li," Engineer Wang said, sounding anxious, "We found a serious problem when we were doing the electromagnetic field simulation. According to the current design, the electromagnetic field strength generated by the UHV line far exceeds the safety standard. If this problem is not solved, the UHV line will have a serious impact on the surrounding environment and personnel."
Li Yang frowned, knowing the seriousness of the problem. If electromagnetic radiation cannot be effectively controlled, UHV power transmission technology will not be able to be applied on a large scale.
After a moment's silence, he said firmly, "I understand, Mr. Wang. This is indeed a daunting challenge, but we will find a solution. Please gather the team immediately and we will start working on this problem now."
After hanging up the phone, Li Yang immediately plunged into intense thinking. He took out a pen and paper and began to quickly sketch out various possible solutions.
At 2 a.m., an emergency meeting was held in the conference room of the nuclear power plant. Despite the late hour, all the relevant personnel attended in high spirits. Li Yang stood in front of the whiteboard and began to explain his ideas.
"Everyone," Li Yang said in a steady and powerful voice, "The electromagnetic radiation problem we face mainly comes from the strong electric and magnetic fields around the wires. To solve this problem, we need to start from multiple angles."
He drew a few key points on the whiteboard:
Optimization of conductor structure
Phase sequence adjustment
Shielding technology application
Improvement of tower structure
Corridor planning optimization
"First," Li Yang pointed to the first point and said, "we need to optimize the structure of the conductor. I suggest that we use large-section, multi-split conductors. This will not only reduce the corona effect of the line, but also effectively reduce the intensity of the electromagnetic field."
Engineer Wang nodded thoughtfully and added: "We can consider using eight-split conductors, with four bundles of conductors per phase, and each bundle consisting of two branch conductors. This can significantly reduce the surface field strength of the line."
Li Yang looked at Engineer Wang approvingly and continued, "That's right. The next step is the phase sequence arrangement. We can achieve partial cancellation of the electromagnetic field by adjusting the arrangement of the three-phase conductors."
He drew a triangle diagram on the whiteboard and explained: "We can use an equilateral triangle arrangement, or a reverse phase sequence arrangement in a flat arrangement. This will partially cancel out the electromagnetic fields generated by the three phases in space, thereby reducing the total electromagnetic field strength."
Electrical engineer Zhang Yan asked a question: "Engineer Li, will this arrangement affect the mechanical properties of the circuit?"
Li Yang nodded: "Good question. There will indeed be some impact, so we also need to make corresponding adjustments to the tower structure. This is our fourth point."
He sketched a new type of tower on the whiteboard: "We can design a new tower structure that can not only adapt to the new arrangement of wires, but also shield the electromagnetic field to a certain extent. For example, we can install special shielding devices on the tower."
"Speaking of shielding," Li Yang pointed to the third spot, "this is another important means for us to reduce electromagnetic radiation. We can wrap a layer of special shielding material around the outer layer of the wire, or set up a shielding net under the line."
Materials expert Liu Tao interrupted, "Mr. Li, I have an idea. We can develop a new type of composite material that has both good conductivity and excellent shielding effect."
Li Yang's eyes lit up: "Good idea! Engineer Liu, you lead the materials team to start researching this material immediately. Remember, this material must not only have a good shielding effect, but also meet the requirements of long-term outdoor use, such as weather resistance and mechanical strength."
Finally, Li Yang pointed to the fifth point and said: "Corridor planning optimization is also very important. We need to re-plan the corridors of UHV lines to keep them as far away from residential areas and ecologically sensitive areas as possible. At the same time, we also need to consider terrain factors and use natural barriers to reduce the impact of electromagnetic radiation."
The meeting lasted until 4 a.m., and everyone left the meeting room with a lot of ideas and tasks. Li Yang knew that the real challenge had just begun.
……
In the following days, the entire team devoted themselves to intensive research and development work.
In the wire R&D laboratory, engineers are testing wires with different cross-sections and splitting methods. They use high-precision field strength meters to carefully measure the electric field strength under each wire configuration.
"Look," a young engineer said excitedly, pointing to the instrument display, "the surface field strength of the eight-segment wire is nearly 20% lower than that of the four-segment wire!"
The person in charge nodded and said, "That's right, but we still need to consider mechanical performance and cost factors. Continue testing. I want to see a comprehensive data analysis."
At the same time, in the materials laboratory, Liu Tao's team is developing new shielding materials. They have tried various material combinations and repeatedly conducted performance tests.
"This composite material of carbon tubes and metal powder looks very promising," Liu said, examining a sample under a microscope. "It has a good shielding effect and also has excellent mechanical properties."
His assistant frowned and said, "But its cost is too high. If it is used on a large scale, I am afraid it will greatly increase the cost of the entire project."
Liu Tao pondered for a moment and said, "You are right. We need to find a more economical alternative. Maybe we can try some cheaper fillers, such as graphene?"
In the tower design department, engineers are using computer-aided design software to simulate the performance of various new tower structures.
"This Y-shaped design looks good," said a senior engineer, pointing to the screen. "It not only adapts to the new way of arranging wires, but also shields electromagnetic fields to a certain extent."
His colleague added: "Moreover, this design has much less visual impact than traditional poles and may be more easily accepted by the public."
Li Yang often shuttles between departments to solve problems, coordinate resources, and ensure the smooth progress of the entire project. Sometimes, he also needs to conduct some key experiments himself.
……
One day, while testing the tower shielding device, Li Yang discovered an unexpected problem.
"Strange," he muttered to himself, staring at the test data, "Why does the shielding effect drop so sharply as the frequency increases?"
He immediately called together experts from the materials group and the electromagnetic field analysis group to discuss the issue.
After several hours of intense discussion and in-depth analysis, they finally found the reason: in the high-frequency band, the skin effect of the shielding material becomes significant, resulting in a decrease in the shielding effect.
"We need a multi-layer shielding material," Li Yang suggested. "The outer layer uses highly conductive materials to shield low-frequency electromagnetic fields, and the inner layer uses high magnetic permeability materials to shield high-frequency electromagnetic fields."
This idea was immediately recognized by everyone, and the materials group began to develop this new type of multi-layer shielding material.
While solving technical problems, Li Yang did not neglect other aspects of the project. He communicated with the local government many times to negotiate the site selection of the UHV line.
"I fully understand your concerns," Li Yang said at a meeting with local village representatives, "but I can assure you that we have adopted the most advanced technology to ensure the safety of the UHV line. Moreover, this project will bring a large number of jobs and economic benefits to the local area."
After many communications and discussions, a solution acceptable to all parties was finally reached: the line will bypass densely populated areas and use underground cables in sensitive areas.
As the project progressed, various difficulties arose, but Li Yang and his team always found solutions. They developed new anti-flashover insulators, designed advanced lightning protection systems, and even developed an intelligent sensor network that can monitor the status of the line in real time.
Finally, after nearly two months of hard work, construction of the world's first ultra-high voltage transmission line began.
The construction site was busy, huge machinery was erecting a new type of tower, and workers were carefully installing special insulators and conductors. Li Yang stood aside, his eyes full of satisfaction and expectation.
"Engineer Li," an engineer came over excitedly to report, "the first tower has been successfully erected, and all indicators meet the design requirements!"
Li Yang nodded and said, "Very good, but we can't let our guard down. We need to check every step carefully to make sure there are no mistakes."
In the following months, the entire UHV transmission system gradually took shape. The electricity from the power plant was stepped up to 1000 kilovolts by the UHV transformer, then transmitted to the load center hundreds of kilometers away through the UHV transmission line, and finally distributed to each user after the voltage was reduced by the step-down station.
Before the system was officially put into use, Li Yang personally presided over the final comprehensive test. They checked every component and tested every function to ensure the safety and reliability of the entire system.