【摘要】 分析了变速变桨距风力发电机组的基本控制策略,提出一种放大过渡区的优化控制策略,用来消除额定功率运行点附近切换造成的功率波动及突变载荷等不利影响。依据优化的控制策略设计了三控制器平滑过渡方案,并结合先进的模糊神经网络控制算法,实现对该策略的最佳跟踪。运用Matlab仿真平台模拟了优化控制策略下的风力发电机组运行特性,结果表明所提控制策略使功率幅值降低了7.66%,突变载荷得以减缓,满足设计目的。更多还原

【Abstract】 Based on analyzing the basic control strategy of variable-speed variable-pitch(VSVP) wind power generator system,an optimization control strategy aiming to enlarge the transition region is proposed,which can be used to mitigate harmful effects caused by controller switch near the rated power,such as power fluctuation and sudden load change.According to the optimized control strategy,the project of three controllers’ smooth transition is devised,and combined with advanced fuzzy neural network control algorithm,the optimum tracking for the strategy is fulfilled.The wind turbine operation characteristic under the optimized control strategy is simulated by way of MATLAB simulation platform,and the results evidence 7.66 percent of the power amplitude is reduced and the sudden load change is alleviated,the proposed control strategy satisfies the design purpose.更多还原