北京北仪创新真空技术有限责任公司(以下简称北仪)自行设计并成功研制了中国国内首条、整机全部国产化的非晶硅薄膜太阳电池生产线;经过多个用户生产线的建设深刻认识到:核心技术的提升必须依靠自主创新;技术进步需要工艺与设备配套研...北京北仪创新真空技术有限责任公司(以下简称北仪)自行设计并成功研制了中国国内首条、整机全部国产化的非晶硅薄膜太阳电池生产线;经过多个用户生产线的建设深刻认识到:核心技术的提升必须依靠自主创新;技术进步需要工艺与设备配套研发、交替提升。北仪建设了具有产业化能力的薄膜太阳电池实验中心;创建了含有"‘在线实验室’的可创新薄膜太阳电池生产线",本文介绍了该生产线的核心设备以及关键工艺步骤中"在线实验室"所起的作用。该生产线的核心设备为等离子体增强化学气相沉积系统(Plasma Enhanced Chemical Vapor Deposition,PECVD),在"在线实验室"的指导下,通过对该系统的稳定性和膜层均匀性的改进以及电池I层厚度和P层材料带隙的优化,得到了性能更优的同质双结非晶硅太阳电池。展开更多
In this paper, a dynamic fault model is proposed to predict yarn end breakage in the spinning procedure through investigation of fault characteristics. In view of the principle that uniformity bad in raw material caus...In this paper, a dynamic fault model is proposed to predict yarn end breakage in the spinning procedure through investigation of fault characteristics. In view of the principle that uniformity bad in raw material causes iustable yarn formation, the investigation focuses on the fault characteristic existing in the dynamic tension. Analyzing the dynamic spinning system, the phenomenon of over random shock in a spinning triangle is discovered to be the main physical event prior to yarn end breakage. The fault characteristic is further confirmed by dynamic tests and signal processing, and can be used to make an approach to predicting yarn end breakage. A relative energy feature is defined for evaluating the tendency of yarn end breakage, and its effectiveness is verified by on.line monitoring tests in the laboratory. The research results show that the proposed dynamic fault model has not only an advantage in indicating the presence of fault characteristics, but also great potentials in quantitating fault in online spinning monitoring.展开更多
文摘北京北仪创新真空技术有限责任公司(以下简称北仪)自行设计并成功研制了中国国内首条、整机全部国产化的非晶硅薄膜太阳电池生产线;经过多个用户生产线的建设深刻认识到:核心技术的提升必须依靠自主创新;技术进步需要工艺与设备配套研发、交替提升。北仪建设了具有产业化能力的薄膜太阳电池实验中心;创建了含有"‘在线实验室’的可创新薄膜太阳电池生产线",本文介绍了该生产线的核心设备以及关键工艺步骤中"在线实验室"所起的作用。该生产线的核心设备为等离子体增强化学气相沉积系统(Plasma Enhanced Chemical Vapor Deposition,PECVD),在"在线实验室"的指导下,通过对该系统的稳定性和膜层均匀性的改进以及电池I层厚度和P层材料带隙的优化,得到了性能更优的同质双结非晶硅太阳电池。
文摘In this paper, a dynamic fault model is proposed to predict yarn end breakage in the spinning procedure through investigation of fault characteristics. In view of the principle that uniformity bad in raw material causes iustable yarn formation, the investigation focuses on the fault characteristic existing in the dynamic tension. Analyzing the dynamic spinning system, the phenomenon of over random shock in a spinning triangle is discovered to be the main physical event prior to yarn end breakage. The fault characteristic is further confirmed by dynamic tests and signal processing, and can be used to make an approach to predicting yarn end breakage. A relative energy feature is defined for evaluating the tendency of yarn end breakage, and its effectiveness is verified by on.line monitoring tests in the laboratory. The research results show that the proposed dynamic fault model has not only an advantage in indicating the presence of fault characteristics, but also great potentials in quantitating fault in online spinning monitoring.
