With the 750-tonne crawler cranes, tower cylinder lifting 50 tons Huanhuandiqiang and firmly installed in the base ring, Tianjin’s first wind power projects – big Shentang wind turbines started in the first group of hoisting. Are expected in June this year, all the generating units can be put into operation. The wind farm built in Binhai New Area will become a milestone in renewable energy development, the promotion of Binhai New Area zero-carbon emission energy development and utilization of great significance. By then, Tianjin, wind power will achieve zero breakthrough.
The total investment is 370 million yuan in Tianjin Tai Shen Tang wind farm located south of the village in the Hangu throwing Tuo, Tai Shen Tang village, 4 km east of Office, installed capacity 26 MW, using 13 units of single capacity of 2 MW Wind Turbine . This group of 13 turbines on land is currently the largest capacity stand-alone commercial operation, blade diameter of the longest, most technologically advanced, have complete independent intellectual property rights of the wind turbine will be the first time, the most advanced distributed access methods . Since the wind farm began in late July 2009 and the fans hoisting platform for temporary road construction, by the end of June is expected to achieve all the wind turbine grid-electricity generation, transmission District began green energy. The wind farm is completed, in the daily development and construction of Binhai New Area to provide 52.13 million kwh clean, reliable and green power, while annual savings of 19,000 tons of standard coal, water-saving 30.4 thousand tons, the annual emissions of carbon dioxide 60000 tons, 88 tons of nitrogen oxides, soot 10.4 tons, 39.2 tons of sulfur dioxide, will enhance the District’s image and improve the quality of the regional power structure and power play an active role.

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The main characteristics of simple structure, reliable operation at low prices. This generator set for the fixed-speed constant-frequency unit, the operation is essentially the same speed, wind generators run on wind energy conversion under the best chance of a relatively small power-generating capacity and thus lower than the new unit. To run from the power system needs to absorb reactive power. To meet the power of the wind farm power factor requirements, multi-use parallel compensation capacitors in the machine-side approach, the compensation strategy is asynchronous generator with a capacity of several groups of a fixed capacitor.

As the wind speed in size with climatic and environmental change, driving the wind turbine generator is not always possible to run at rated wind speed, in order to take full advantage of the low wind speed when the wind, increase in the annual generating capacity, widely used in recent years, two-speed asynchronous generator. This two-speed asynchronous generator can change the number of pole pairs, with large and small motor two kinds of operating mode.

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