At present, only the cable industry giants in a few countries such as the United States, Sweden, Italy, Norway, and Japan have mastered the ± 525kV DC cable system technology, but after the successful development of these companies' products, there is no complete system application to the actual project, and many of them are used as technical reserves.

±In order to complete the task assigned by the state, Huaxing Group Company is also in the optical fiber and cable technology and material technology on the basis of so many years of research and development, but also in the development of anti-water tree insulating material, this material insulation and corrosion resistance and mechanical resistance are very good, can prevent the entry of oil and water, and the life is also very long.

The laboratory also carried out tests on the material against water trees and electrical breakdown, and it took more than a year to fix the formula and process of this material.

At the same time, the technical team has also developed two materials, active water absorption and water resistance, and passive static water resistance, and has developed a supporting process for this purpose.

Previously, in order to develop submarine optical cables, Huaxing Group also recruited a Chinese technical expert with more than 20 years of research and development experience from an optical cable laboratory in the United Kingdom to serve as the head of the technical department, helping Huaxing Group to establish a rigorous research and development process in the research and development of optical cables.

Later, Huaxing Group Co., Ltd. obtained metal gluing technology after the acquisition of Fokker Company, and these technologies were also used in the optical cable project, Huaxing Group Co., Ltd. successfully developed a profile water blocking conductor through technical research, with a voltage level of up to 525kv, which is the highest in China.

In addition, the outer diameter of the ±525kV DC cable is one-tenth smaller than that of the wrinkled aluminum sheathed cable of the same voltage level and specification.

Because of the use of new conductive materials, the transmission capacity has also been increased, reaching 2000MW, which is at the world-class level.

Because Huaxing Group Co., Ltd. was concerned about optical fiber cable research and development at the beginning, it integrated optical fiber communication and optical fiber synchronous temperature measurement functions in the research and development of ultra-high voltage cables.

This set of optical fiber temperature measurement technology uses the relationship between reflected light and temperature to measure the magnitude of reflected light to monitor the temperature change along the cable.

Huaxing Group also applied for several technical patents on this system, and Yang Jie only proposed a technical idea at that time, and Fu Minglai led the technical team to develop it for more than a year.

With this monitoring system, you can monitor the changes in cable temperature at any time, so that the cable system has an early warning system of fire prevention and temperature measurement, and can monitor the cable temperature and ambient temperature and cable load at any time, which can make the power system more safe and economical, and at the same time, it can also find line faults at any time, which greatly shortens the time for line patrol workers to troubleshoot faults.

This set of optical fiber temperature measurement system was first used by the British Electric Energy Research Center from the mid-70s of the last century to concentrate on this topic, at first it was applied to the temperature measurement of the high voltage transformer winding hot spots, used for fault diagnosis and forecasting, and later used for the application of computer power management, transferred to safe overload operation, so that the system is in the best power distribution state.

Fu Minglai also studied in this area, and when Yang Jie made a request, he also led the technical team to develop such a set of optical fiber temperature measurement system and communication system.

Because Huaxing Group uses high-power lasers, the maximum measurement distance of such a system can reach nearly 200 kilometers, and it is also the world's farthest detection distance distributed system.

In the first half of this year, the ultra-high voltage cable developed by the laboratory has also passed the national acceptance, and it has also completed the triple jump of Huaxia from ± 160kV to ±200kV and then to ±320kv, and directly entered the world's advanced level of ±525kV.

Yang Jie is also very satisfied with this, Huaxia has a realistic demand for this ultra-high voltage transmission technology due to geographical reasons, and there are very few countries in the world like Huaxia that need to build thousands of kilometers of transmission grid.

Therefore, he is also willing to invest in research and development of ultra-high voltage transmission technology, and the construction of Huaxia's domestic transmission network alone is enough to make his own research and development investment in this area to make a lot of money, and the huge market in the future can also make the technology of ultra-high voltage laboratory in this area continue to be at the forefront of the world.

Song Xinyang was also quite happy about the technological breakthrough of the ultra-high pressure laboratory, and also greatly praised Yang Jie.

Because these bigwigs attach great importance to the country's economic development, especially to the demand for electricity, as early as the seventies and eighties of the last century, they began to have an advance design plan for the development of domestic power, and these bigwigs attach great importance to this and have clear goals.

Song Xinyang attaches great importance to the national energy strategy, and naturally talks about how to change the way hydrogen energy is obtained.

Yang Jie didn't hide it, but also said his thoughts.

"Chief, our Huaxing Group is now using gallium nitride devices to make solar panels technology continues to carry out research and development, theoretically the photoelectric conversion efficiency can reach 76%, now we can achieve 34%, now the best solar panels made of silicon-based materials can only reach 18%, this is a huge breakthrough. ”

Yang Jie said: "Now we are trying to reduce the preparation cost of GaN material single crystal material, and at the same time find a way to reduce the GaN substrate in terms of processing technology, and strive to reduce the GaN substrate, our goal is to reduce the GaN wafer to 20 microns within five years, and at the same time make the GaN wafer size to eight inches, so that the cost of GaN material can be greatly reduced." ”

Yang Jie said with a smile: "I gave a dead order to the gallium nitride semiconductor materials technology department, to reduce the cost by 500 US dollars a year, and by 08 years the cost must be reduced to less than 300 US dollars, at that time the cost of producing a wafer can basically be the same as that of silicon-based wafers, and it is possible to use gallium nitride chips on a large scale." ”

"How's it going?"

Song Xinyang asked.

"So far, it's been going well, because now we're able to design and produce a special thinning machine ourselves, and with the slurry we developed, the cost of a four-inch GaN wafer has been reduced to $2,000 by now. ”

Yang Jie said with a smile that he is still very satisfied with the progress of the R&D department of gallium nitride semiconductor materials.

“......”

The bigwigs here are also emotionally moved when they hear the news, Huaxing Group can be described as a desperate approach in R&D investment, and other people will never do this, which requires great courage and courage, and also needs enough financial and human support to do it.

"You have invested so much in R&D, don't you worry about the risk of failure?" asked Zeng Jiabao at this time.

"We have a set of technology research and development risk management and control system within the company, and the new products will not use more than 30% of the new technology, and we will use the mature technology as much as possible to ensure the reliable performance of our products. ”

Yang Jie said: "At the same time, the new technology we have developed will be promoted as soon as possible after passing various tests and qualifications, not only for our own products. ”

Zeng Jiabao nodded: "Your homework on research and development is indeed very good. ”

"Ladies and gentlemen, I also hope that the central government can support us to do technical pre-research in advance on the use of various new energy sources and reserve technologies in these aspects. ”

Yang Jie said.

"Tell me what you think. Song Xinyang said.

"In the next ten years, we will build a small power station in the desert area in the north, study how to use the characteristics of less rain and abundant sunlight in the desert area to obtain efficient solar energy, and will also use the desert temperature difference to generate electricity, and at the same time to solve the problem of wind and sand in the desert area, the difference between power generation capacity and how to store energy in the day and night, summer and winter, and other technical problems, which require technicians to spend a long time to do various research. ”

Yang Jie said: "Because our Huaxing Group's technical strength in permanent magnet motor technology is still very good, and the efficiency of the permanent magnet generator we produce is also world-class, we also want to use the technology of permanent magnet generator in wind power generation, solar air flow power generation and geothermal power generation." ”

He paused and said: "Our Huaxing Group wants to build a geothermal power station in the Sichuan-Tibet region, a solar air flow power station in Qiongzhou Province, and a wind power station in the coastal area, all of which will not be very large, mainly to make technical reserves in these aspects, and at the same time use the electric energy of these power stations to carry out technology research and development work on electrolysis of hydrogen." ”