摘要
针对目前变速风力发电机组最大功率点跟踪算法对机组参数依赖性较大的问题,提出了一种用于最大功率点跟踪的动态功率曲线控制策略。根据机组当前的运行特性来调节功率曲线的比例系数,实现对最大功率点的跟踪控制。该算法的优点是对机组的参数依赖性较小,即使在转速测量有误差的情况下也可以实现机组对最大功率点的跟踪控制。在Matlab/Simulink的平台上,采用模糊控制技术设计了MPPT的动态功率曲线控制系统,仿真结果证明了动态功率曲线控制策略的正确性和可行性。
In allusion to the problem which MPPT control strategy of variable speed wind turbine is largely dependent on the machine＇ s parameters, a dynamic power curve control strategy of maximum power point tracking （MPPT） was presented. This strategy adjusts the proportion coefficient of the power curve according to the current operational states of wind turbine tO realize the control of MPPT. The merit of this strategy is less dependent on the machine＇s parameters and can still realize the MPPT control even when the measured ro- tor speed exists errors. Finally , designed the system of the dynamic power curve control strategy of MPPT based on fuzzy control with Matlab/Simulink tool. Simulation results confirm the validity and feasibility of this strategy.
出处
《电气传动》
北大核心
2011年第12期61-65,共5页
Electric Drive
