期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
*-连通空间
1
作者 谢土生 陈海燕 《广西大学学报(自然科学版)》 CAS CSCD 北大核心 2012年第6期1292-1296,共5页
在理想拓扑空间的基础上,给出了*-连通空间的定义以及它的刻画,进而讨论了它的性质,得到一些有用的结果。此外,还对*-连续映射进行了研究。
关键词 理想拓扑空间 *-隔离 *-闭集 *-连续映射 *-连通空间
在线阅读 下载PDF
Two-stage Voltage Closed Loop Control Scheme for Hybrid Excited Synchronous Generator-matrix Converter Generation System 被引量:1
2
作者 SHI Mingming ZHOU Bo +1 位作者 WEI Jiadan MAO Yiran 《中国电机工程学报》 EI CSCD 北大核心 2012年第3期I0001-I0023,共23页
Matrix Converter(MC),a direct AC-ACconverter which is capable of bidirectional powerflow,unity input power factor control and efficiencyimprovement.Thus,it is more suitable for integrationof motor machine and power el... Matrix Converter(MC),a direct AC-ACconverter which is capable of bidirectional powerflow,unity input power factor control and efficiencyimprovement.Thus,it is more suitable for integrationof motor machine and power electronics systems.This paper investigated a novel generationsystem,which is composed of hybrid excitedsynchronous generator(HESG)and matrix converter(MC),as shown in Fig.1.Owing to the voltage clampcircuit,this structure waived an external DC sourcecommonly used for the excitation for HESG.Thevoltage clamp circuit shared a DC bus with afull-bridge converter and the excitation winding ofHESG is directly connected to the output of thefull-bridge converter achieving a bidirectional currentflow. 展开更多
关键词 matrix converter hybrid excited synchronous generator variable speed constant frequency
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部