Semi-physical Simulation Study Of A Stable Control System For The Combined Operation Of A Fan And An Energy Storage Device

The world is faced with the increasing depletion of non renewable energy, as well as the deterioration of environmental pollution caused by energy consumption. The sustainable development has been seriously threatened. Wind energy is currently the most large-scale development and the most commercial application of renewable energy, wind power technology has become a hot spot for research personnel. At present, although the total capacity of wind power is large, but all over the abandoned wind is serious, the main reason is due to the technology is not mature enough, a large number of wind power access to the grid may cause the collapse of the power grid system. Based on wind power generator and storage to the stability of the joint operating device control system to carry out research, proposed in doubly fed wind turbine back-to-back converter DC side added storage devices system structure, and designs the structure under the machine side converter and load side converters and storage can control strategy of device, is also built the simulation model of the system, and off-line simulation and hardware in the loop simulation respectively.First of all, this paper summarizes the current research status of wind power, the application of energy storage system in wind power technology, and the research status of simulation technology. Then carry wind power generator combined storage system of theoretical research on doubly fed wind turbine and storage can system working principle, doubly fed wind turbine to establish the mathematical model, energy storage system equivalent model and discuss the power characteristics of wind turbine, the maximum wind power tracking method is proposed.Secondly, based on wind power generator combined storage to the topological structure of the system is studied, and the proposed in doubly fed wind turbine back-to-back converter DC side added storage devices system structure, and design the structure under the machine side converter and load side converters and storage to device control strategy, and build the simulation model of the system.Finally, offline simulation and semi physical simulation are carried out in a variety of simulation environments, and the simulation results are compared and analyzed, which proves the feasibility of the research project.