期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
单级反激微型逆变器控制策略
1
作者 张雅静 王秀腾 +2 位作者 陈骞 范新桥 梁美 《北京信息科技大学学报(自然科学版)》 2018年第5期11-15,共5页
根据单级反激微型逆变器拓扑的特点,提出了一种新的控制策略,使逆变器根据工况不同分别工作于临界连续模式和断续模式。该控制策略可显著提高逆变器在全功率范围内的效率并有效改善逆变器的并网波形质量。介绍了单级反激微型逆变器新型... 根据单级反激微型逆变器拓扑的特点,提出了一种新的控制策略,使逆变器根据工况不同分别工作于临界连续模式和断续模式。该控制策略可显著提高逆变器在全功率范围内的效率并有效改善逆变器的并网波形质量。介绍了单级反激微型逆变器新型控制策略的工作原理,推导了控制变量与电网电流的关系式,并进行了仿真验证,结果与理论分析一致。 展开更多
关键词 光伏发电 微型逆变器 反激 隔离型
下载PDF
Standards System and Evaluation Indicators System for Environmental Protection Products
2
作者 Huang Jin Lin Ling wang xiuteng 《China Standardization》 2010年第6期17-25,共9页
Environmental protection products and equipment are important substance basis and insurance which provide supporting for to the realization of the strategic objective of reduced energy use and emissions while improvin... Environmental protection products and equipment are important substance basis and insurance which provide supporting for to the realization of the strategic objective of reduced energy use and emissions while improving the resource economy & environmental kindly society building, as well as the sustainable development economy and environment in a sustainable fashion. Here, the framework of the standards system and evaluation indicators system for environmental protection products are described based on the present deficiencies in independent innovation, lower levels of standardization, and poor operating effectiveness of such equipment in China with a goal of forcing the development of standardization, seriation and currency used in the environmental protection industry. The results presented here should serve as a reference for the promotion of quality and effectiveness in environmental protection products and equipments. 展开更多
关键词 Environmental Protection Products Standards System Evaluation Indicators System
下载PDF
Magnetic molecular materials with paramagnetic lanthanide ions 被引量:8
3
作者 wang BingWu JIANG ShangDa +1 位作者 wang xiuteng GAO Song 《Science China Chemistry》 SCIE EI CAS 2009年第11期1739-1758,共20页
The diverse magnetic properties of lanthanide-based magnetic molecular materials are introduced in the following organization.First,the general aspects of magnetic molecular materials and electronic states of lanthani... The diverse magnetic properties of lanthanide-based magnetic molecular materials are introduced in the following organization.First,the general aspects of magnetic molecular materials and electronic states of lanthanide ions are introduced.Then the structures and magnetic properties are described and analyzed for molecules with one lanthanide ion,4f-4f,4f-3d and 4f-p magnetic coupling interactions.In each section,magnetic coupling,magnetic ordering and magnetic relaxation phenomenon are briefly reviewed using some examples.Finally,some possibilities of developing magnetic molecular materials containing lanthanide ions are discussed in the outlook part. 展开更多
关键词 LANTHANIDE coordination compound MAGNETIC coupling MAGNETIC ordering MAGNETIC relaxation SINGLE-MOLECULE MAGNET SINGLE-CHAIN MAGNET single-ion MAGNET
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部