Modelling Of Wind Farm And Designing Of Wind Farm's EMS

Reasonable and reliable model of wind farm is the premise to study integration technology of wind power and is also a necessary condition for the establishment and optimization of wind farm management system. Nowadays, it is negative effect produced by wake effect of wind farm, imperfect integration management, defective management mechanism of wind farm that have become key problems which need to be resolved urgently for founding wind farms.Therefore, in order to found reasonable and reliable model of wind farm and energy management system, the dissertation conducts the study regarding wind farm dynamic model with wake effects and energy management system.First of all, a mathematical model of permanent magnet synchronous generator, full power converter and the converter control system model is established, at the same time, the simulated model of 1.5MW direct drive permanent magnet wind turbine and single wind turbine and its control strategy simulated model is also built, which is based on their mathematical model.Second, the dynamic model of wind farm with wake effect and the time-delay effect is built. The output property of wind farm with wake effect, time-delay effect and the combined effect in the condition of gradient wind, gust, of random wind is separately studied by founding a 90MW wind farm simulation example.Third, the dissertation has researched the inherent relationship among wind generators in the wind farm.And wind farm energy management system framework has been established from perspective of data, communication, application and system, which is based on heterogeneous autonomous decentralized system technologies.Finally, the dissertation has designed management system of the wind farm based on assurance by using the Unified Modeling Language (UML), including static and dynamic modeling method. Meanwhile, the dissertation has made the wind farm's energy management system software based on kingview6.5 software.