Abstract: In view of that the research of the current active power output of wind farm focuses on the theoretical research and are lack of realization of the software platform,in this paper,the simulation software platform of active poweroutput of wind farm based on VC++ and SQL Server database was developed.Firstly,the active power output of wind farm was realized by using the VC++ rich function library,and the data of active power output of wind farm was displayed graphically based on the powerful data processing and data visualization function of MFC in VC++.Secondly,the data storage and management function of SQL Server database was used to realize the function of information browsing,query and remote data call.Based on this software platform,a software system architecture method was proposed.Finally,the data of wind farm in Xinjiang was simulated and verified by the measured wind speed data,and the results show that the simulation software of the active power output of wind farm can show the active power of wind farm in the form of a curve graph,and this proves that the software platform has a good engineering application,and it has important signifi-cance for the improvement of wind power system.

Key words: VC++,SQL server database,Microsoft foundation classes(MFC),Active power output of wind farm