摘要
针对双馈风力发电系统,首先对激励源-风速随机变化的特性,提出一种合理并符合实际生活的自然风的数学模型,其次根据双馈风力发电系统中的风力机各部件数学模型,利用因果次序图的求逆规则推导出风力机最大功率跟踪控制策略,搭建Matlab/Simulink模型,最后对控制参数进行整定以及优化。运行仿真模型,得到了风轮机输出功率、输出转矩、输出角速度、风能利用系数等信号的波形曲线。仿真结果表明,使风能利用系数在系统运行过程中保持最优值,最终体现在风轮机对风力捕捉能力,为驱动发电机提供最大输入功率,证明了上述方法的有效性。
For the doubly-fed wind power generation system,firstly,based on the random variation of the excitation source-wind speed,a reasonable and practical mathematical model of natural wind was proposed.Secondly,according to the mathematical model of each component of the wind turbine in the doubly fed wind power generation system,the maximum power tracking control strategy of the wind turbine was derived by using the inversion rule of the causal sequence diagram,and the Matlab/Simulink model was built.Finally,the control parameters were adjusted and optimized.The simulation model was run to obtain the waveform curves of the wind turbine output power,output torque,output angular velocity,wind energy utilization coefficient and other signals.The simulation results show that the wind energy utilization coefficient maintains the optimal value during the operation of the system,which is finally reflected in the wind turbine’s ability to capture wind,and provides the maximum input power for driving the generator,which proves the effectiveness of the method.
作者
买买提热依木·阿布力孜
刘谨言
项志成
郭岳霖
Maimaitireyimu ABULIZI;LIU Jin-yan;XIANG Zhi-cheng;GUO Yue-lin(College of Electrical Engineering,Xinjiang University,Urumqi Xinjiang 830047,China)
出处
《计算机仿真》
北大核心
2022年第11期100-103,426,共5页
Computer Simulation
基金
新疆高校科学基金重点项目(XJEDU20161017)。
关键词
双馈风力发电系统
风轮机
最大功率追踪
建模仿真
因果图求逆
Doubly-fed wind power system
Wind turbine
Maximum power tracking
Modeling and simulation
Causality diagram inversion
