Successful development of 1.5MW doubly-fed asynchronous wind turbine converter

Recently, Beijing Lidehuafu Company officially released it, and the 1.5MW double-induction asynchronous wind turbine converter, a cooperation project between Beijing Qingneng Huafu Wind Power Technology Co., Ltd. and Tsinghua University, which was invested and established by it, was successfully developed and was once Passed the ground full load test of Lanzhou Motor Factory. Leadworth is a leading company in the field of high-voltage inverters in China. Since the first high-voltage inverter prototype was introduced, it has been engaged in the research, development, production and sales of energy-saving, environmentally-friendly and renewable energy products. This time, cooperation with Tsinghua University to enter the wind power market is based on Li De Huafu's deep research and development, advanced production technology and mature application experience in the power industry, combined with the advantages of Tsinghua University's technology and talents, through the long-term unremitting efforts of both parties. Outstanding results. The two sides hope to break the monopoly of foreign companies in this field and thus drive the overall development of the national industry.

In recent years, wind power has shown a strong momentum in the entire world power market. In order to promote the development of grid-connected wind power generation, the “Renewable Energy Medium- and Long-Term Development Plan” formulated by the National Development and Reform Commission clearly requires that the national wind power installed capacity will reach 5 million kilowatts in 2010 and the national wind power installed capacity will reach 30 million kilowatts in 2020. During the fifteenth period, the National Development and Reform Commission and the Ministry of Science and Technology have included the “megawatt wind turbines” in the national major industrial development plan, and on January 1, 2006, the first implementation of the “Renewable Energy Law” in China, It has created a good legal and planning framework for the development of renewable energy in China. Statistics show that as of the end of 2005, 61 grid-connected wind farms have been built nationwide, with a total installed capacity of 1.266 million kW and 1,864 grid-connected wind turbines installed. On the other hand, domestic products accounted for only 22.7% of the cumulative market share in 2005. The wind power market of units above MW is mainly monopolized by foreign products.

The backwardness of technology and equipment manufacturing is a key issue that restricts the development of China's wind power industry. The doubly-fed asynchronous wind turbine converter is the core component of the variable-speed constant-frequency doubly-fed asynchronous wind turbine. It has not been able to develop mature industrial products in China. Dependent on imports. The “QHVERT-DFIG1500B” doubly-fed asynchronous wind turbine converter introduced by Beijing Qingneng Huafu Wind Power Technology Co., Ltd. is a doubly-fed asynchronous wind power generation technology based on AC-DC-AC bidirectional converter, which is fully digital. Vector control method belongs to international cutting-edge technology. The technology can optimize the operation of the wind power generation system, realize the variable speed constant frequency power generation in the wide wind speed range, improve the fan efficiency and the working condition of the transmission chain, reduce the generator loss, improve the operation efficiency, improve the wind energy utilization rate, and have broad development space. .

The core technology of 1.5MW doubly-fed asynchronous wind turbine converter, Qingneng Huafu has complete independent intellectual property rights. With the successful listing of this product, it will break the monopoly of foreign products in this field and reduce the cost of wind power equipment in China. It also marks the rise of the national industry in the wind power field.

Silicone For Agriculture

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silicone spreading adjuvant,

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wetting agent,

polyether modified heptamethyltrisiloxane,

super spreader surfactant.

silicone penetration agent,

Defoamer for pesticides,

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