The mathematical model of each element of a stand - alone wecs including wind turbine , permanent magnet generator , rectifier , storage battery and pwm inverter is developed in the d - q rotor reference frame in chapter 3 第三章在d - q坐标轴中，建立独立风能转换系统中各组成部分：包括风力机、发电机、整流器、蓄电池和逆变器的数学模型。
The rigid shaft model and flexible shaft model of the drive train based on the spring - mass - damper system are used to analyze the dynamics of the drive train . a sample grid - connected 300kw hawt is simulated using the analysis method 在此基础上以并网型300kw水平轴风力机为分析对象，对其传动系统在紊流风场作用下的动力学性能进行了仿真计算并分析了计算结果。
2 . the vibration measurements and fault diagnosis has been done for different wind turbines on working conditions . results of fault diagnoses has been proved to be correct by disconnect the gearbox and check it 2 .对不同风力机做了振动测试和诊断,并且以实际拆检结果验证了诊断结果基本正确,从而摸索出一套可行的风力机故障诊断方法,对生产实践具有一定的指导意义。
He adopts the finite element ways to analyze and calculate the main components for that the wind turbine can work normally in the life time . all the modeling and simulations are completed by the bladed for windows software 为确保风力机在其寿命期内能够正常工作，采用了有限元分析方法对主要零部件塔架、机舱底座和轮毂进行了强度分析、结构力学特性分析以及寿命计算。
Exploiting wind energy resources is of great significance in improving energy structure . in the discourse , the characters of wind generator and wind power are introduced briefly , while parameters and types of wind generators are also narrated 基于开发风能资源在改善能源结构中的重要意义，本论文对风力机及风能的特性作了简要的介绍，且对风力机的各种参数和风力机类型作了必要的说明。
This paper presents the analysis system and software of the horizontal axis wind turbine ( hawt ) dynamic process . to various types of operating control schemes , the dynamic process of hawt is systematically analyzed and its more accurate prediction model is developed 本论文针对水平轴风力机的各种运行控制方案，分析了风力机的动态过程，建立了较精确的风力机动态过程分析的计算模型。
Based on research of wind turbine aerodynamic characteristics , this paper analyzed various control methods for a pitch - controlled system of variable - speed and constant - frequency wind turbine at a wind velocity range higher or lower its speed rating respectively 摘要在风力机空气动力学特性分析的基础上，讨论了变速恒频风力机组变桨距机构在低于额定风速阶段和高于额定风速阶段的不同控制策略。
For the flexible shaft model , a computer program frame for dynamic model is set up in the matlab . the dynamic processes of hawt which support several aerodynamic moments are simulated and the simulation results are analyzed and compared 并结合传动机构的柔性轴模型，在matlab中建立了动态模型的系统框图，仿真了水平轴风力机在几种气动转矩作用下的动力学过程，并对仿真结果进行了分析和比较。
Proceed from the angle of energy and taking considerations on interference factor and drag of airfoil profile , a kind of new typed calculation method on the design of vane air foil was put forward according to the vortex aerodynamics model of the rotor of wind turbines with horizontal axis 摘要根据水平轴风力机转子的涡流气动模型，从能量的角度入手，考虑干涉因子和翼型阻力，提出了叶片翼型设计的一种新型计算方法。
In the dynamic model of the generator , through the research of its dynamic characteristics and control strategies , dynamic models adapted for control design of fixed speed and variable speed wind turbines are built and relevant simulation analysis means are established 发电机的动态建模部分通过研究其控制策略和动态特性，建立了适应于风力机控制设计的两种动态模型，即定速发电机模型和变速发电机模型，确定了相应的仿真分析方法。
