With Typhoon No. 10 this year, “Mediumâ€, the China Energy News and his entourage came to Jiangshan City, Zhejiang Province. The largest photovoltaic power station and high-efficiency agriculture complementary project in East China saw the Zhejiang Tongjing Group Fenglin photovoltaic agricultural project is in full swing here. In progress. The project is located in Fenglin Town, Jiangshan County, Zhejiang Province. The first phase of the 30MW project has a total investment of 250 million yuan. The total planned area is 833 acres. The power station will generate 40 million power annually, and the power station can reduce the use of 320,000 tons of standard coal during its service life. In mid-August, grid-connected power generation.
East China is a place where electricity is used by peak loads. The annual average solar radiation is 4190-5016 MJ/m2, and the average annual sunshine is only 1400-2200 hours. The land resources are very tight. Therefore, there are few large-scale photovoltaic ground power stations in the southern region. With the Jingfenglin PV power station project as the only large-scale photovoltaic power station in East China, it not only makes up for this vacancy, but also effectively integrates the photovoltaic power station and high-efficiency agriculture, and the power resources are delivered on-site to absorb locally, which also makes The project has not yet been completed and it has been supported by governments at all levels and favored by local farmers.
In an interview with the China Energy News, Mr. Wu Jiannong, Chairman of Zhejiang Tongjing Technology Co., Ltd., could not hide his joy: “Imagine the dream that the ideal combination of intelligent photovoltaic power plant and high-efficiency agriculture will soon become a reality.†The integrated development model of photovoltaic power plants and high-efficiency agriculture combines solar power generation, modern agriculture, and cultivation of Chinese herbal medicines in a single place, which promotes the reduction of agricultural income and power generation costs, and will play a positive role in maintaining soil erosion and improving the comprehensive utilization efficiency of land.
Accumulation of energy industry for many years
Complying with new energy photovoltaic development needs
Tongjing Technology was formerly Sanyou Electronics. As early as in 2002, it was the world's largest energy-saving lamp manufacturer. After several years of rapid development, in order to meet the needs of the company's innovation and development, it took the initiative to transform itself three years ago and withdraw from the lighting industry. Developed into a sunrise industry for solar energy applications and solar power plants.
“The choice of photovoltaic industry is based not only on our more than ten years of management and market development advantages in the field of energy-saving lighting, but more importantly, we have a mechatronics technical team that can fight especially, can endure hardships, and can especially overcome difficulties. "Wu Jiannong said. In the preliminary investigation and study of the photovoltaic industry, Tongjing Science and Technology found that the solar power plant tracking system generally has the problems of insufficient reliability, poor wind resistance, and a wide area, which has always constrained the increase in the generation of solar power plants. Science and technology put forward innovative development goals on these three issues and adopted the principle of cost control.
After long-term research, on the one hand, a major improvement has been made in the principle of the tracking system. One end of the battery array board is controlled by a special soft connection, which increases the stability of the battery board and facilitates tracking and offset rotation freely. This completely solves the concussion of the wind and the life of the tracking system; on the other hand, it uses a motor to drive the control system and achieves linkage of multiple battery array plates through the universal joint drive, enabling up to 18 battery array plate brackets to track and link. At the same time, 100 watts of motor is also used. Through the torque amplification of the rope, each battery array board requires only a small torque force and clearance movement to realize tracking of the solar panel as the sun shines.
As a result, the overall use of equipment such as reduced motor counts, reduced tracking power consumption, cancellation of control software, and the elimination of traditional expensive motors and decelerators, has reduced the cost of power plant development from the source compared to conventional slanted single-axis tracking systems. The third is that the traditional ground power stations occupy a large amount of land, and the characteristics of the power station of the same scene are automatically adjusted with the change of the terrain. At the same time, each battery array board directly places four ground piles on the ground without excavation, and It is resistant to Class 12 typhoon and structural design features.
This type of pile only occupies 1% of the floor area and basically does not damage the cultivated land. At the same time, the tracking system can be adjusted at the right time. In order to facilitate the entry of large-scale machinery, the battery panels will be erected to achieve mechanized cultivation. It is precisely because of the short growing season of high temperature crops in the south. After the panels are installed, they can block 30% of the sun's sunlight. The crop's direct sunlight, which reduces the amount of sunlight below the panel, is reduced, and it can form a microclimate growth environment and increase the growth of crops. Period, improve crop quality. To this end, we have established a special agricultural service development management company to carry out agricultural development for our power station agriculture and light complementary projects, and at the same time plant various hi-y crops and Chinese herbal medicines under the panels under different conditions, thereby enhancing the comprehensiveness of the power station. Development and economic benefits.
Strong integration
Build intelligent photovoltaic power station under information technology
On the one hand, Tongjing Technology strengthens cooperation with universities in China for scientific research and personnel training, and also strengthens the company's independent innovation and technology research and development capabilities. On the other hand, it strengthens cooperation with Huawei Technologies, a powerful and technological international company. Utilizing Huawei's international leadership and deep accumulation in digital information, communications, and Internet technologies, as well as its pioneering integration of digital information technology, Internet technology, and photovoltaic power generation technology in smart photovoltaic solutions, we are committed to creating a true Meaningful smart photovoltaic power station.
Tongjing Technology is the first company in the world to use an inclined single axis linkage tracking system and an optimized lean component system to maximize the power generation efficiency. Wu Jiannong said that the project data of the 470 kW roof of the Aozhou speciality built in April of this year in Zhejiang Province shows that after using an autonomous inclined single-axis tracking system, the power generation capacity can be increased by 20%. After using Huawei's string inverter, it can be used again. Increase the power generation by 10%; if improvements are made in electrical appliances, it is believed that the power generation can be increased to 30%.
"Our cooperation with Huawei is not only because Huawei is a global leader in information and communications solutions, but also in the telecommunications network, enterprise networks, consumers, and cloud computing, building intelligent photovoltaic power plant solutions. More importantly, Huawei is The leading edge of technical quality indicators enables the power station to better increase power generation, improve safety, stability and convenient operability, and Huawei's rapid operation and maintenance services also lay a solid foundation for improving the quality of power generation and power supply. Cooperation will also jointly play a positive role in promoting the future development of intelligent photovoltaic power plants. This will further strengthen our confidence in partnering with Huawei and our determination to integrate Huawei with smart technologies such as information and the Internet.†Wu Jiannong pointed out.
The intelligent photovoltaic power plant solution realizes high-speed wireless transmission of signals to cover the entire power station. No matter where the workers go, they can track and view the power generation, operation, and management of the power station anytime, anywhere. Speaking of the future, Wu Jiannong said that he will create a truly intelligent photovoltaic power plant management model, introducing drone inspections, robot maintenance, and so on, to truly realize digitalized photovoltaic power stations, make power plants simpler, and automate and manage intelligent photovoltaic power plant management. Tongjing Technology is committed to building photovoltaic power plants into a combination of sightseeing tourism, scientific research teaching and training, ecological agriculture, photovoltaic power generation integrated innovation model.
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