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中文摘要：
根据风速的多时间尺度特性,在风能转换系统非线性机理模型的基础上,建立风能转换系统的双频模型;并设计了双频环优化控制器,其中低频环采用PI稳态优化控制方法;高频环采用H2/H∞状态反馈的多目标优化控制.仿真结果表明,基于H2/H∞状态反馈的风能转换系统的双频环优化控制方法是有效的,并在多个控制指标之间进行折衷处理.
英文摘要：
According to multi-time scale of wind speed, two-frequency model was established for WECS based on the nonlinear mechanical model, and then two-frequency-loop optimal controller was designed. PI static optimal control was used in the low-frequency-loop, while multi-objective H2/H∞ state feedback optimal control was introduced in the high-frequency-loop. Simulation results demonstrate the feasibility of two-frequency-loop optimal control based on multi-objective H2/H∞ state feedback, and a trade-off is achieved between multi-objective optimizations.
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