摘要:分析了影响同步电动机矢m:控制电流控制环动态特性的主要因索.指出同步电动机反电动势是
其中最重要的{一扰因索针对通常采用的F I(比例一积分)电流调 y器因下作频带的限制无法在较高转速时
抑制反电动势的影响.提出了前馈补偿和变电流环增益的设计方法.少}应用于基于数-f_信写处理器的矢m:控
制系统给出了系统结构及软硬件设计方案实验结果表明.该系统硬件简的一控制精l夏高.动态}h I能良好（.caj)
Abstract: This paper analyzes the impact of synchronous motor vector m: control of current control loop dynamic characteristics of the main due to demand. Pointed out that the synchronous motor counter electromotive force is one of the most important result of (1 nuisance claim against the usual method of FI (the proportion of points 1) current transfer y browser due to restrictions under the band can not be at a higher speed when the inhibitory effects of counter electromotive force. proposed feedforward compensation and variable gain current loop design method.) used on a number of less-f_ vector processor to write the letter m: control system gives the system architecture and hardware design The experimental results show. The system control hardware simple one fine summer of high-l.) h I can be dynamic sound (. caj) (2008-04-15, TEXT, 41KB, 下载6次)
目前, 虚拟企业这种组织结构在中国的企业中还比较陌生, 不像其他各类组织结构那样有着较为丰富的应用经历和经验。但是国外虚拟企业成功的典型有很多, 如世界知名的康柏电脑公司、以高品质运动鞋闻名的耐克公司、饮料巨商可口可乐公司等企业在生产经营活动中应用虚拟企业这种组织结构都获得了巨大的成功。虚拟企业已成为企业成功的秘密武器
err (2006-09-13, TEXT, 5KB, 下载5次)
0年代以来，企业并购之风席卷全球，银行业尤甚，早先的东京银行与三菱银行并购案（1996）。大通银行与化学银行并购案（1996）以及瑞士银行与瑞士联合银行并购案（1997）都曾轰动一时。1998年4月银行并购再掀高潮，先是花旗银行与旅行者集团达成合并协议，组成全球最大的金融服务企业，随后全美排名第五的美洲银行又与排名第三的国民银行合并，与此同时第一银行又与第一芝加哥银行合并而成为全美第五大银行。
0's, the M & A trend sweeping across the world, particularly the banking sector, earlier the Bank of Tokyo and Mitsubishi Bank Merger (1996). Chase Manhattan Bank and Chemical Bank Merger (1996) and the Swiss banks and the merger of Union Bank of Switzerland (1997) have created a furore. April 1998 there was a high tide of further bank mergers and acquisitions, first with Citibank Travelers Group merger agreement. formed the world's largest financial service enterprises, Subsequently the United States ranked fifth in the Bank of America ranked third with the National Bank merger Meanwhile First Bank with the first Chicago bank merger creating the fifth largest banking. (2006-09-13, TEXT, 9KB, 下载3次)