Research On Localization And Technology Renovation Of GE 1.5MW DFIG

China since 2003 began to introduce the GE company's MW level wind power generation units, the current domestic GE1.5MW double fed wind turbine assembly machine more than 1000 units. So far, there have been a series of problems, such as the aging of the unit, the difficulty of purchase of spare parts, the higher maintenance costs, which have a serious impact on the development of wind power generation enterprises. Ge wind turbine out after the warranty period, manufacturers in the maintenance and technical support, spare parts supply gradually transferred to the stage of paid services. By foreign operation and maintenance technology monopoly, parts sales and other factors, such as the impact of the GE wind power generator, the time of the failure of the wind power generation enterprises in the operation and maintenance of the unit to increase the cost of the fundamental reason.In this paper, the fault analysis and equipment configuration of GE wind turbine generator are studied, and the feasibility of the GE fan control system and some parts of the domestic transformation is obtained. Through the control system and some components of the wind turbine, it can greatly reduce the operation cost of wind power generation enterprises, and bring good economic benefits to wind power enterprises.Software, design a set of new wind turbine main control program of the original replacement; machine safety, increase a new fan safety chain control system, to ensure that the unit can run safely in the harsh environment; hardware, Ge wind machine original some variable pitch system, frequency converter to replace domestic product advanced, complete the framework design of the domestic reform of system of Ge fan control. In the process of debugging and testing, the control program is optimized, so the performance of the wind turbine generator set is the best.According to the design, the wind turbine control system and some parts of the domestic transformation, you can use the domestic advanced technology, the use of domestic production of parts and components to achieve the operation and maintenance of GE fans, breaking the foreign companies in the GE market of operation and maintenance of monopoly. To reduce the operation cost of GE and promote the development of domestic wind power industry and improve the utilization ratio of GE fan.The technology transformation, the future will be a long time, the lack of technical support, spare parts procurement difficulties of the old fan to provide a sustainable solution.