Wind Power Research Of Switche Rreluctance Motor System

This dissertation focuses on the wind power research of switched reluctance motor system on the base of the analysis of the structure and the control technology of the commonly used motor used in wind power system. The wind power research of switched reluctance motor system includes two parts, which are the system of DC motor simulating the characteristic of wind turbine and SRG system. During the studying of the system of DC motor simulating the characteristic of wind turbine, by analyzing the basic theory and characteristic of DC motor and wind turbine, this dissertation adopt linear trajectory of the wind turbine to plan the trajectory of DC motor, and adopt power and current double closed loop control method to achieve the simulation of wind turbine characteristics by a DC motor. For SRG system, the dissertation firstly introduces the structure, power generation principle and commonly used power way of switched reluctance motor. The dissertation research on the angle optimization of the switched reluctance motor used in the experiment part of this dissertation. The dissertation then compared and analyzed commonly used maximum power tracking control method: wind speed tracking control method, the speed feedback control method, power disturbance control method and speed close-loop climbing method. On the basis of summarizing the advantages and disadvantages of the above methods, it selects the speed closed-loop climbing method as the maximum power tracking control method in this paper. Finally the dissertation build a test platform of wind power generator system base on SRG, and validates and analysis experiment of the system of DC motor simulating the characteristic of wind turbine, experiment of power output characteristics of wind power system base on SRG, and the most power tracing experiment of the wind power of switched reluctance motor system. These experimental results verify the linearization method of wind turbine characteristic and the method of speed close-loop climbing are right.