Maximum power point tracking of a photovoltaic energy system using neural fuzzy techniques

In order to improve the output efficiency of a photovoltaic (PV) energy system, the real-time maximum power point (MPP) of the PV array should be tracked closely. The non-linear and time-variant characteristics of the photovoltaic array and the non-linear and non-minimum phase characteristics of a boost converter make it difficult to track the MPP as in traditional control strategies. A neural fuzzy controller (NFC) in conjunction with the reasoning capability of fuzzy logical systems and the learning capability of neural networks is proposed to track the MPP in this paper. A gradient estimator based on a radial basis function neural network is developed to provide the reference information to the NFC. With a derived learning algorithm, the parameters of the NFC are updated adaptively. Experimental results show that, compared with the fuzzy logic control algorithm, the proposed control algorithm provides much better tracking performance.     

测量系统分析技术在在线检测设备上的应用

结合实际生产线的在线检测设备,应用一种测量系统分析(MSA)技术,针对在线检测设备的检测结果的可信可靠可用问题进行分析,研究解决方案和控制策略,说明MSA技术对于提高在线检测设备效率的重要性.     

喜羊羊教你写作文之“德智体机”检测法

自从喜羊羊开始给大家上作文课以来,已经教过小朋友们好几种写人的方法了,比如寻羊写人法宠物写人法……当然啦,作文的技法永远不嫌多,这不,喜羊羊又准备了一记新鲜的妙招来教大家写人,那就是——德智体机检测法!身为喜羊羊的粉丝,大家一定知道,德智体机是慢羊羊村长的又一项发明,是用来检测小羊们是否在德、智、体三方面都达标的。结果小羊们一个都没达标,村     

Blob分析与亚像素定位算法在LED检测机的机器视觉系统中的应用

由予LED大量使用在各种电子产品中,在大批量的生产中要求能更精确更快速地对LED芯片进行检测.本文提出了使用Blob分析和亚像素定位相结合的算法,将其应用在LED检测机的机器视觉系统中,对LED芯片进行测量和定位,然后根据测量出的数据为LED检测机的运动控制系统提供运动数据.