在综合分析谐波励磁无刷同步发电机励磁控制系统的基础上,对其励磁控制策略进行了研究,开发了一套基于DSP( TMS320F2812) 控制的新型柴油发电机励磁控制系统,该系统采用参数自适应模糊PID 控制励磁,选用交流采样方式实时检测各信号的瞬时特性,系统仿真结果以及在1 台25 kW 工频柴油发电机上的试验结果证明了该控制器具有较好的电压调节特性,系统稳态和暂态性能完全满足发电机对励磁系统的要求。关键词:励磁调节;模糊PID 控制;数字信号处理器;交流采样 Abstract :According to the general analysis of the excitation cont rol system of the harmonious wave excitation brushless synchronous generator and it s characteristics ,a new type of diesel generator excitation cont rol system based on DSP( TMS320F2812) was designed. An adaptive fuzzy PID cont rol of excitation is used in this system. To detect the t ransient characteristics of the signals in a timely manner ,AC sampling was applied.The system simulation result s and the testing result s f rom a 25 kW diesel generator (50 Hz) can prove that the voltage regulation characteristics of the excitation cont rol system are very well ,and both the steadyOstate performance and the t ransient performance of the generator are also good.Key words :excitation cont rol ;fuzzy PID cont rol ;digital signal processor (DSP) ;AC sampling
上传时间： 2013-10-29
上传用户：fxf126@126.com
FPGA与ARM EPI通信，控制16路步进电机和12路DC马达 VHDL编写的，，，，，
上传时间： 2013-10-21
上传用户：zhyfjj
针对广东移动WLAN质量检测系统提出了3种可行方案，分别从仿真用户拨测、基于软切换的AC拨测、仿真AP拨测3个方面检测WLAN网络质量。文章进一步对比了这3个方案各自的优缺点，对实际的选型工作具有重要参考意义。
上传时间： 2013-11-06
上传用户：mengmeng444425
无线交换机的出现，使无线局域网(WEAN)由传统的分布式架构向集中管理式架构转变，其中转发功能也实现了从AP到无线交换机(AC)的迁移。如何利用AC更好地实现集中式流量转发也成为无线交换机研发厂商主要考虑的问题之一。
上传时间： 2013-10-14
上传用户：xwd2010
一种好用的微波小软件
标签： 模拟软件
上传时间： 2013-11-02
上传用户：wawjj
一种好用的微波小软件
标签： 模拟软件
上传时间： 2013-11-21
上传用户：asdkin
DC-DC经典PCB布局
上传时间： 2013-11-25
上传用户：sunjet
FPGA与ARM EPI通信，控制16路步进电机和12路DC马达 VHDL编写的，，，，，
上传时间： 2013-10-31
上传用户：chaisz
This document provides practical, common guidelines for incorporating PCI Express interconnect layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10- layer or more server baseboard designs. Guidelines and constraints in this document are intended for use on both baseboard and add-in card PCB designs. This includes interconnects between PCI Express devices located on the same baseboard (chip-to-chip routing) and interconnects between a PCI Express device located “down” on the baseboard and a device located “up” on an add-in card attached through a connector. This document is intended to cover all major components of the physical interconnect including design guidelines for the PCB traces, vias and AC coupling capacitors, as well as add-in card edge-finger and connector considerations. The intent of the guidelines and examples is to help ensure that good high-speed signal design practices are used and that the timing/jitter and loss/attenuation budgets can also be met from end-to-end across the PCI Express interconnect. However, while general physical guidelines and suggestions are given, they may not necessarily guarantee adequate performance of the interconnect for all layouts and implementations. Therefore, designers should consider modeling and simulation of the interconnect in order to ensure compliance to all applicable specifications. The document is composed of two main sections. The first section provides an overview of general topology and interconnect guidelines. The second section concentrates on physical layout constraints where bulleted items at the beginning of a topic highlight important constraints, while the narrative that follows offers additional insight.
上传时间： 2014-01-24
上传用户：s363994250
伺服驱动器
上传时间： 2013-12-25
上传用户：偷心的海盗
