The hottest way to improve material performance an

2022-08-14
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Abstract: the blade industry has become a huge domestic market for high-end composite raw materials. The development of the wind power industry requires the synergy of blade quality improvement and cost control. The prosperity of the composite industry needs the quality improvement and technological progress of the blade industry. We must rely on technological innovation and process optimization and improvement to tap the space of cost

low cost, large-scale, lightweight Development direction of intelligent fan blades

"With the development of China's wind power industry, fan blades have initially formed a complete industrial chain and have strong competitiveness in terms of quantity, quality and specification. However, in terms of overall new technology, there is still a certain gap with the international advanced level. Especially in terms of low cost, large-scale, lightweight and intelligent, only by continuously improving the performance and technical level of fan blades can we adapt to the continuous increase of fan capacity." , the demand for higher and higher cost performance. " Li Baoshan, Secretary General of China Renewable Energy Association, said at the "Third China International Wind Power composite Summit Forum" held on March 30 that high-performance composites are the main body of blades, and materials determine the cost, performance and price of blades. Therefore, improving material properties is the main way to reduce the price of blades. At the same time, it can also reduce the transportation and installation costs of blades

huge market space for blade composites

"As an important embodiment of green development, the wind power industry is an important pillar of economic growth and an important field of scientific and technological innovation. It has become a strategic emerging industry for the country to accelerate development. The total installed capacity of wind power will reach 210million kW in 2020, and the annual new installed capacity will reach more than 20million kW during the 13th Five Year Plan period. As an important part of the wind power industry, composite materials have great prospects for future development." Chu Jingchun, chairman and general manager of Guodian United Power Technology Co., Ltd., said

the 13th five year plan for energy technology innovation puts forward key tasks in the demonstration project of 8-10 MW and above ultra large offshore wind turbines, carbon fiber composite wind turbine blades and application research, which provides direction and support for China's next development. China's wind power composite material industry, especially the wind power blade industry, has experienced more than 30 years of development. With the development of technology and progress in China's wind power industry, the construction of domestic manufacturing capacity of key raw materials has been realized, and the overall competitiveness is increasing. However, at present, there is a certain gap between China's blade manufacturers and the international level in the overall technology of blades, especially in the aspects of cost reduction and efficiency increase, intelligent manufacturing, intelligent operation and maintenance, and so on

"from a series of mergers and acquisitions of leaf enterprises in the world recently, it can be seen that the industry law of 'who gets the leaf gets the world' has begun to appear." Liuwanping, president assistant and quality director of Goldwind technology group, said that in recent years, the domestic wind power market has continued to maintain a healthy growth trend, and has shown increasingly obvious rational characteristics. For example, when choosing complete machine equipment suppliers and basic products, customers pay more and more attention to the benefits of operation, and also pay great attention to the selection of key components. Blade, as the core component of wind turbine, is particularly concerned. Blade design technology, blade manufacturing process, blade quality management, blade raw material performance research, etc. will be the problems that need to be solved and discussed in the future wind power industry

in Liu Wanping's view, the blade industry has become a huge market for domestic high-end composite raw materials. The development of the wind power industry requires the synergy of blade quality improvement and cost control. In fact, it is stripped from graphite materials. After all, the life cycle cost of graphene cable may be lower than that of traditional products, which are two-dimensional crystals composed of carbon atoms with only one layer of atom thickness. The prosperity of the composite industry needs the quality improvement and technological progress of the blade industry. We must rely on technological innovation and process optimization and improvement to tap the space of cost

low wind speed and offshore wind power have higher requirements for blades

"the future technical direction of blade materials is mainly recyclable thermoplastic resin and lighter raw materials (such as carbon fiber). Using large blades at low wind speed, the pouring time is longer, and the epoxy resin is required to have a longer operational time. Offshore wind power has higher requirements for the weather resistance and salt spray resistance of blade materials." Yang Qinghai, marketing director of Sichuan Dongshu New Material Co., Ltd., said at the Forum on control modes such as isokinetic experimental force, isokinetic displacement, experimental force maintenance, displacement maintenance that the company has made technical reserves in carbon fiber resin, recyclable green resin, extending resin gel time, etc

on the one hand, it is a foregone conclusion that China's wind power market has shifted from the north to the south. In order to meet the demand of low wind speed and efficient power generation, blade manufacturing requires longer, lighter and lower cost. On the other hand, with the rapid decline of the global offshore wind power kwh cost, the reduction of kWh cost is bound to drive the development of offshore wind power. The large-scale of offshore wind power blades will bring new problems in efficiency, weight and load, and the special environment at sea will also bring new challenges to blade materials

tangzhiyao, chairman and general manager of Taishan Glass Fiber Co., Ltd., believes that wind power composites, especially wind turbine blades, are the fastest-growing, most revolutionary and most successful products of technological products and process materials in the world in the past 20 years. Glass fiber has good cost performance characteristics such as light weight, high strength, high modulus and aging resistance, which has been perfectly applied in the application of wind power composites

"In recent years, the construction of wind farms in China has expanded from northern Shaanxi to the mainland, from the land to the sea. The improvement of development and the pressure on cost reduction have put forward new requirements for the blade shape and material itself. As the main reinforcement of blades, glass fiber is both a challenge and an opportunity. The biggest feature of fiber composites is that they are designable, and the development direction is light, high strength and high modulus. High quality glass fiber, especially high modulus The application of high strength and high modulus in wind power composites still has great room for improvement. " Tang Zhiyao said

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