摘要
以液压型风力发电机组为研究对象,针对机组发电效率问题,建立数学模型,利用小信号线性化的方法解决相乘非线性问题,进而提出基于输出功率单一控制以及输出功率和风力机转速联合控制的两种最佳功率追踪方法。分别对两种最佳功率追踪方法的控制原理进行详细介绍,从理论上分析两种控制方法的优缺点。同时以24 k W液压型风力发电机组实验台为基础,采用Matlab/Simulink仿真软件,分别针对提出的两种最佳功率追踪控制方法进行仿真和实验研究,进而验证两种控制方法的可行性和正确性,为液压型风力发电机组的进一步研究以及更好的应用奠定理论基础。
With a hydraulic type wind power generator unit serving as the object of study and an aim to enhance the utilization rate of wind power,a model was established for solving the problem that the product of the power generation efficiency of the unit multiplying with the system model is non-linear. The small signal linearization method was used to solve the problem above-mentioned. On this basis,the tactics for tracking both optimum powers based on the single wind turbine output power control and the output power and rotating speed joint control were proposed. The control theory of the method for tracking both optimum powers were described in detail and the merits and demerits of both control methods were theoretically analyzed. In the meantime,on the basis of a 24 k W hydraulic type wind power generator unit semi-physic simulation test rig and by using the simulation software MATLAB / Simulink,a simulation and experimental study of both optimum power control methods above proposed were performed respectively,thus verifying that both methods are feasible and correct and laying a theoretical basis for further study and better applications of hydraulic type wind power generator units.
出处
《热能动力工程》
CAS
CSCD
北大核心
2015年第6期946-952,979,共7页
Journal of Engineering for Thermal Energy and Power
基金
国家自然科学基金资助项目(51475406)
河北省青年基金(QN20132017)
燕山大学青年教师自主研究计划课题(13LGB005)
关键词
风力发电
液压传动
最佳功率追踪
功率控制
功率与转速联合控制
wind power generation,hydraulic transmission,optimum power tracking,power and rotating joint control
