Wind power and wind power cables

With the increase of human and environmental awareness in social and economic development, when the energy of minerals becomes increasingly impoverished, the world's energy structure is undergoing tremendous changes. From non-renewable energy sources to renewable energy, solar energy, wind energy, and biomass energy , geothermal energy, ocean energy, etc., have become the direction of people's research. Among such a large number of energy sources, wind energy should be considered as the most economical, fastest-growing and most commercialized energy source. As early as 1985, wind power generation in China began to develop wind power generation and successfully connected to the grid for power generation. However, due to various reasons, China's wind power industry lags far behind foreign development and loses good opportunities for development. In recent years, wind energy, as a kind of clean energy, has once again attracted the attention of various countries. The rapid development of wind power has become the fastest growing energy source in the world. According to the energy development plan of the National Development and Reform Commission, by 2010, the development goals of wind power in China will be 5 million kilowatts and 30 million kilowatts, respectively.

China's wind energy resources are very abundant. Inland resources are mainly distributed in the northeast, north and northwest, and wind farms have been built in Inner Mongolia and other places. At the same time, the marine wind energy resources are also very rich. The total reserves are about 800 million kilowatts. According to experts, China’s offshore development wind energy reserves are 750 million kilowatts. With the total number of land-based wind turbines becoming saturated, offshore wind power will become the focus of future development and the development prospects are considerable. Therefore, the wind power cable brought by the wind power business has become the new darling of the cable industry. All cable companies in the country are also investing funds to develop wind energy cables. It is reported that Baosheng Cable, Shangshang Cable, Far East Cable and China Coal Cable have been developed in succession. Your own wind energy cable and passed the expert's appraisal. Wind power cables mainly refer to the occasions where they are used in the cabin interior, in the upper part of the engine room and the tower, and in the lower part of the tower to the bottom of the tower. Its classification mainly includes flexible cables, power cables (fixed laying and twisting) and control cables. The environmental characteristics of wind energy cable operation are long-term outdoor activities, vertical suspension, frequent torsion (automatic yaw to wind), direct contact with oil, direct sunlight, etc. Marine wind energy cables must also prevent corrosion of seawater. Due to the harsh operating environment and conditions of cables, the requirements for wind power cables are also high, and the requirements include high mechanical strength, torsion (flexible), shock resistance, oil resistance, UV resistance, and seawater corrosion resistance. In addition, the cables used in cold areas are also resistant to low temperatures (-40 °C). At present, there is no unified standard for wind energy cable countries. The conductor DC resistance complies with German DIN VDE 0295, and the insulation and sheathing comply with German DIN VDE 0207. Wind energy cables are basically rubber-type cables (at least used in fans and cables in first-stage towers above), Category 5 or 6 conductors, EPR or silicone rubber insulation, neoprene, CPE or TPU jackets. In 2009, the National Wire and Cable Supervision and Inspection Center issued a corporate standard for wind power cables, which provided guidance for the development of wind power cables and testing in the cable industry. Faced with such a broad prospect of development and potential for development of wind power cables, we have also raised new challenges. We should actively make positive contributions to the development of enterprises.