According to the national energy board news, in August 1st, the wind power industry has two new standards for industry officially implemented. They are: guidelines for the selection of low wind speed wind turbines and regulations for the preparation of offshore wind farm project planning reports.
"The low wind speed wind turbine selection guide" by China Electric Power Construction Group northwest investigation design and Research Institute Co. editor, China Zhuzhou Electric Locomotive Research Institute Co., ap. The work was started in December 2013, and was formally approved by the water conservancy and water conservancy planning and Design Institute in August 23, 2016.
The guidelines for the low wind speed wind turbine is defined as: suitable for standard air density at hub height represents the annual average wind speed is not higher than 6.5m/s, the wind power density of wind turbine is not higher than 320W/ square meters under the conditions of wind energy resources. It is also pointed out that the cut in wind speed should not be higher than 3.0m/s, the rated wind speed should not be higher than 10m/s, and the cut wind speed should be higher than 18m/s. The maximum Cp value of a low wind turbine generator shall not be less than 0.48. When the wind turbine is under rated power, the power consumption shall be less than 2.5% of the rated power. The noise at the hub height of the low wind turbine generator shall not be higher than that of the current national standard "acceptance standard for wind turbines", GB/T 20319. A wind power unit with low noise working mode should be adopted in the wind farm where site conditions can not meet the requirements of environmental noise standards. The ultimate strength and fatigue strength of the main components, such as blades, gearboxes, generators and main bearings, of low wind speed wind turbines should be verified by type tests. Low wind speed wind turbine should be verified by dynamic characteristics, including blade, transmission system, generator, yaw system, tower.
"Regulations" for the wind farm project planning report by China Sea Power Construction Group survey and Design Institute of Central South Electric Power Construction Group Co. Ltd. and Chinese East, northwest and Beijing survey and Design Institute Limited working group jointly compiled. The work was started in May 2012, and was formally approved by the water conservancy and water conservancy planning and Design Institute in November 28, 2016.
The planning of that offshore wind farm construction should be the protection of resources, unified planning, comprehensive balance, reasonable developing and implementing the principle, should be consistent with China's national economic development planning and the development of renewable energy planning and zoning, and marine functional island protection planning and environmental protection planning and coordination; establishment of offshore wind farm project planning should strengthen investigation and study, pay attention to the basic situation of sea area and basic data collection, collation, analysis, make full use of the previous planning and relevant research achievements, listen to their opinions and requirements, in accordance with the coordinated and efficient and economical principle demonstration decision; major changes in national policy, the development of renewable energy planning and marine function zoning, island conservation planning, marine environmental protection planning, deal with offshore wind power The planning of field engineering should be revised in a timely manner; the planning of offshore wind farm should be divided into three levels, the near future, the long term and the long term. And focus on the near future. In the near future, the level year can be considered for about 5 years from the time of planning, and the long-term level can be considered for about 10 years from the time of planning, and the prospective level can be considered for about 20 years from the time of planning. The division of the planning level year should be compatible with the national long-term and long-term development plan.
The two wind power standards were officially announced by the national energy board in April 2017. Their implementation will provide important specifications for the rising wind speed and offshore wind power in China, and promote their healthy and orderly development.