一种无速度传感器的风力发电最大功率跟踪方法

专利类型：发明专利

语言：中文

申请号：CN201510176090.4

申请日：20150415

发明人：王磊罗治伟苏晓杰张虎陈柳

申请人：重庆大学

申请人地址：400044 重庆市沙坪坝区沙正街174号

公开日：20171010

公开号：CN104819098B

代理人：穆祥维

代理机构：重庆信航知识产权代理有限公司 50218

摘　　要：本发明公开了一种无速度传感器的风力发电最大功率跟踪方法，其步骤为：1)通过实验获取最大风能捕获与电机转速之间的关系曲线；2)对发电机电磁转矩进行建模分析；3)在最大功率跟踪状态时对传动链模型进行分析；4)确定最佳输出功率与感应电机同步速度之间关系，并建立查找表；5)为系统设计一种自适应控制器。本发明不需要用测量风力发电机的转速以及风力大小和方向，就可以实现风力发电机在低风速时的最大功率跟踪。由于风的大小和方向受各种原因的影响很难保证一直不变，准确测量过程复杂并提高了系统成本。因此，本发明有效地解决了常规风力发电系统需要测量风力大小和方向所面临的测量难题，在一定程度上减少了系统成本。

主权项：一种无速度传感器的风力发电最大功率跟踪方法，其特征在于，该方法包括如下步骤：1)通过实验获取最大风能捕获与电机转速之间的关系曲线:风轮捕获的气动功率与风机转速之间的关系为 $P_{wopt} = \frac{{ρπR}^{5} C_{p} (λ_{opt})}{{2 λ}^{3}} ω_{wopt}^{3} - - - (1)$ 风机的机械转矩与风机转速之间的关系为 $T_{mecopt} = \frac{P_{wopt}}{ω关键词：法律状态：公开IPC专利分类号： G05B13/04; F03D7/00var ShareData = new Array();
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