在綜合分析諧波勵磁無刷同步發電機勵磁控制系統的基礎上,對其勵磁控制策略進行了研究,開發了一套基于DSP( TMS320F2812) 控制的新型柴油發電機勵磁控制系統,該系統采用參數自適應模糊PID 控制勵磁,選用交流采樣方式實時檢測各信號的瞬時特性,系統仿真結果以及在1 臺25 kW 工頻柴油發電機上的試驗結果證明了該控制器具有較好的電壓調節特性,系統穩態和暫態性能完全滿足發電機對勵磁系統的要求。關鍵詞:勵磁調節;模糊PID 控制;數字信號處理器;交流采樣 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
上傳時間： 2013-10-29
上傳用戶：fxf126@126.com
FPGA與ARM EPI通信，控制16路步進電機和12路DC馬達 VHDL編寫的，，，，，
上傳時間： 2013-10-21
上傳用戶：zhyfjj
針對廣東移動WLAN質量檢測系統提出了3種可行方案，分別從仿真用戶撥測、基于軟切換的AC撥測、仿真AP撥測3個方面檢測WLAN網絡質量。文章進一步對比了這3個方案各自的優缺點，對實際的選型工作具有重要參考意義。
上傳時間： 2013-11-06
上傳用戶：mengmeng444425
無線交換機的出現，使無線局域網(WEAN)由傳統的分布式架構向集中管理式架構轉變，其中轉發功能也實現了從AP到無線交換機(AC)的遷移。如何利用AC更好地實現集中式流量轉發也成為無線交換機研發廠商主要考慮的問題之一。
上傳時間： 2013-10-14
上傳用戶：xwd2010
一種好用的微波小軟件
標簽： 模擬軟件
上傳時間： 2013-11-02
上傳用戶：wawjj
一種好用的微波小軟件
標簽： 模擬軟件
上傳時間： 2013-11-21
上傳用戶：asdkin
DC-DC經典PCB布局
上傳時間： 2013-11-25
上傳用戶：sunjet
FPGA與ARM EPI通信，控制16路步進電機和12路DC馬達 VHDL編寫的，，，，，
上傳時間： 2013-10-31
上傳用戶：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.
上傳時間： 2014-01-24
上傳用戶：s363994250
伺服驅動器
上傳時間： 2013-12-25
上傳用戶：偷心的海盜
