According to statistics released by the China Electricity Council and other relevant departments in 2012, the total installed capacity of wind power was up to 60.83 million kW at the end of 2012, ranking first in the world; wind power generation was 100.4 billion kW·h, which exceeded nuclear power. 9.82 billion kW·h of electricity generation. Prior to this, the “12th Five-Year Plan for Wind Power Development†issued by the National Energy Administration stated that China’s wind power installation and grid connection will reach 100 million kW by 2015, and the annual power generation will reach 190 billion kWh. Severe wind curtailment One of the interesting phenomena in the sound of wind power is that despite the rapid development, the utilization efficiency of wind power is not high. As an important indicator to measure power generation efficiency, wind power equipment utilization hours decreased in 2012 compared with the same period of last year. According to data from the National Energy Administration, in 2012, the average number of hours spent on wind power equipment was 1,890 hours, a decrease of 30 hours compared with 2011. The number of hours of wind power utilization in individual provinces (regions) dropped to around 1400 hours. This not only wastes clean energy and investment, but also exacerbates environmental conflicts. Taking the northeastern region as an example, according to local resources, the average hours of wind power utilization should be more than 2000 hours, but in fact only about 1500 hours. On the contrary, in Yunnan and Shanghai, where the wind resource is not very good, the average utilization hours are over 2300 hours. With the rapid growth of installed capacity of wind power in China, the area of ​​wind curtailment and power curtailment in some regions was severe in 2012, and the nation’s total wind power was about 20 billion kWh. Industry insiders pointed out that if the current coal consumption level is 20 billion kWh, it is equivalent to 6.78 million. t The loss of standard coal. From a regional point of view, the most severe power curtailment is in the northeastern region, and the power curtailment in Heilongjiang, Jilin, Liaoning, and eastern Inner Mongolia is nearly 10 billion kWh, accounting for about half of the national total. Some industry analysts said that due to the rapid development in the early stage, wind power equipment manufacturers have mushroomed, and in terms of equipment, production is also increasing, which has seriously exceeded the market demand. Against the background of the increase in the total number of new installed capacity in the country, there are frequent occurrences of wind curtailment and power curtailment in some areas, and it must be said that this may reflect the current situation in which the development of the wind power industry has become “malformedâ€. How to Solve the Problem of the Abrupt and Repeated Loop The reporter learned that "disposal of wind" frequently occurs. To a large extent, it is because the power grid is not matched and there is no effective power grid to send it out. In recent years, the phenomenon of wind power discontinuation has also become the norm, and it has become increasingly fierce. Industry experts pointed out that the elimination of large-scale wind power has always been a worldwide problem, and our country’s problems in this area have become more prominent. On the one hand, China's wind resources are concentrated, large-scale, and far away from load centers. The market size of resources and resources is small and difficult to dissipate on the spot. However, foreign wind resources are relatively dispersed. More than 80% of wind power is connected to distribution systems below 10 kV. On the other hand, wind power itself has the characteristics of volatility and intermittency, etc. Wind power grid-connected needs supporting the construction of peaking power supply, while China’s wind power concentrated “Three North†(northwest, north, northeast) regions have a single power supply structure. There is basically no peak shaving ability. In addition, the lack of cross-regional transmission capacity is also an important constraint. It is indeed worrying for some regions to “swallow†wind power projects in the early stages and whether they can digest it. According to experts, the reason for the curtailment of wind curtailment is on the one hand because of the rapid development of wind power and the imperfect planning of the entire industry chain; on the other hand, the power regulation performance of the “Three North†region is not good. Now wind power is mainly consumed by the local market. Wind power has random and intermittent characteristics and belongs to fluctuating power supply, which requires regular power supply to be very regulated. However, the "Three North" area is a heating area, and the proportion of thermal power is relatively large. Thermal power is cogeneration, which weakens the adjustment capacity of wind power. Although China's wind power heating technology has been mature enough, but from the policy system, the cost of wind power heating is nearly twice as high than the thermal power, so the cost issue is worth studying. Some insiders pointed out that to solve the problem of abandoning wind, the key is to speed up the construction of power grids, increase efforts to build ultra high voltage power grids, and transfer wind power that can't be consumed on the site to a large scale, and send “three north†wind power "Three China" area. The establishment of cross-provincial, especially cross-regional power grids, so that the proportion of wind power in this large market is very small, it may solve the problem of wind curtailment, and market operations will be relatively simple. Where is the future development of wind power? On February 27, 2013, the State Grid Corporation of China issued the “Opinions on the Implementation of Distributed Power Grid-connected Services,†and promised to incorporate distributed power, including wind power, into the national grid, and provide preferential grid connection conditions and strengthen supporting facilities. Grid construction, optimization of grid-connected processes, streamlining of interconnection procedures, and improvement of service efficiency. This will undoubtedly address the development bottleneck of wind power grid connection difficulties. However, as an emerging industry, the maturity and technological progress of the wind power industry require support based on market size. To maintain a certain growth rate and market size, it must be complemented by sound policy support. In the wind power lifting construction industry, the amount of construction work has also been greatly affected. According to some construction users who were interviewed, the amount of local engineering work fell significantly compared to 2012. However, one of the users interviewed by the reporter for wind power maintenance and repair construction has been scheduled to take place in November 2013. According to the user, the current wind power maintenance industry has a large demand for lifting operations, and the tonnage of cranes used in wind power maintenance construction is much smaller than the tonnage of cranes used for installation. "I have just purchased two truck cranes. I am very optimistic about the future wind power maintenance market," said the user. Vacuum Pump Types,Edwards Vacuum Pump,Liquid Ring Compressor,Value Vacuum Pump Dongguan Beqile Mechanical&Electrical Equipment CO.,LTD , https://www.betemvacuum.com