基于FPGA的電網基本電量數字測量系統的設計

電子機電論文編號:JD151  字數:22275,頁數:75

目   錄

第1章  現場可編程門陣列FPGA和VHDL語言............................................. 3
1.1 電子設計自動化（EDA）概述 .....................................................3
1.2 FPGA/CPLD的發展前景及開發流程................................................. 4
1.2.1 FPGA/CPLD簡介 ...............................................................4
1.2.2 FPGA/CPLD的開發前景 .........................................................5
1.2.3 FPGA/CPLD的開發流程......................................................... 6
1.3 硬件描述VHDL語言 ..............................................................6
1.3.1 VHDL語言簡介............................................................... .6
1.3.2 VHDL的特點 ..................................................................7
1.3.3 VHDL的描述風格 ..............................................................8
1.3.4 VHDL語言編程................................................................ 8
1.4 MAX+PLUSⅡ概述............................................................... .9
1.4.1 MAX +P LUSⅡ的特點 ..........................................................9
1.4.2 MAX+PLUSⅡ設計流程...........................................................10
第2章  電網基本電量數字測量方案的比較與論證........................................11
2.1 頻率測量 ......................................................................11
2.1.1 頻率測量方案比較 ............................................................11
2.1.2 頻率測量系統設計 ............................................................11
2.2 相位測量 ......................................................................12
2.2.1 相位測量方案比較 ............................................................12
2.2.2 相位測量系統設計.............................................................12
2.3 功率因數測量.................................................................. 14
2.3.1 功率因數測量方案比較.........................................................14
第3章  VHDL語言實現模塊設計 .......................................................15
3.1 電網頻率測量系統的模塊構成 ....................................................16
3.1.1 分頻模塊 ....................................................................16
3.1.2 計數模塊 ....................................................................17
3.1.3 乘法模塊 ....................................................................18
3.1.4 除法模塊 ....................................................................18
3.1.5 數制轉換模塊 ................................................................19
3.1.6 片選模塊.................................................................... 19
3.1.7 動態顯示模塊................................................................ 20
3.2 電網功率因數測量系統的模塊構成................................................ 21
3.2.1 計數模塊.................................................................... 21
3.2.2 移位模塊............................................................... .....23
3.2.3 乘法模塊.................................................................... 23
3.2.4 除法模塊.................................................................... 24
3.2.5 相位_功率因數轉換模塊....................................................... 24
3.2.6 動態顯示模塊 ................................................................25
3.3 電網相位測量系統的模塊構成 ....................................................25
3.3.1 計數模塊 ....................................................................26
3.3.2 移位模塊 ....................................................................27
3.3.3 除法模塊.................................................................... 27
3.3.4 數據選擇模塊 ................................................................28
3.3.5 動態掃描譯碼顯示模塊 ........................................................28
第4章  外圍硬件電路設計 ...........................................................29
4.1 ACEXIK器件簡介 ................................................................30
4.2 傳感器的設計及選型 ............................................................31
4.2.1 霍爾電壓傳感器的選型（選CHV_100）........................................... 31
4.2.2 霍爾電流傳感器的選型（選CHB_300S）...........................................32
4.3 LED顯示器..................................................................... 34
4.3.1 LED顯示器結構與原理......................................................... 34
總結 .............................................................................35
參考文獻.......................................................................... 36
致  謝 ............................................................................37
附錄A  VHDL程序清單............................................................... 38
附錄B   頂層模塊圖 ................................................................57

摘要：伴隨著集成電路（IC）技術的發展，電子設計自動化（EDA）逐漸成為重要的設計手段，已經廣泛應用于模擬與數字電路系統等許多領域。電子設計自動化是一種實現電子系統或電子產品自動化設計的技術，它與電子技術，微電子技術的發展密切相關，它吸收了計算機科學領域的大多數最新研究成果，以高性能的計算機作為工作平臺，促進了工程發展。EDA的一個重要特征就是使用硬件描述語言（HDL）來完成的設計文件，VHDL語言是經IEEE確認的標準硬件語言，在電子設計領域受到了廣泛的接受。本文首先綜述了EDA技術的發展概況，FPGA/CPLD開發流程，以及VHDL語言的開發步驟；然后介紹了電網基本電量，包括頻率、功率因數、相位測量的一般原理；著重介紹了用VHDL語言完成頻率、功率因數、相位的設計工作；最后介紹了外圍硬件電路的設計及系統開發中的幾點體會。

關鍵詞：EDA   測量   硬件描述語言   FPGA/CPLD
                                  

Abstract：Accompany with the technical development of integrated circuit( IC), the electronics design automation( EDA) becomes the important design means gradually, already extensive applied in imitate to wait many realms with numerical electric circuit system.The electronics design automation is a kind of technique that carries out the electronics system or the electronics products to automate the design, it with the electronics technique, the technical development of micro-electronics is closely related, it absorbed latest research result of the calculator science realm, being the work terrace with the calculator of the high performance, promoting engineering develop.EDA an important characteristic is to use the hardware description language( HDL) to come to finished design document, language of VHDL is through the standard hardware language that the IEEE confirm, designed the realm to be subjected to accept extensively in the electronics.This text first overview technical development general situation of EDA, the FPGA/ CPLD  development process, and the development step of the VHDL language;Then introduced the basic electricity quantity of charged barbed wire net, include the frequency, power factor, mutually a general theory for measure;Emphasized to introduce to complete the frequency, power factor with the language of VHDL, mutually the design work of;Introduced the design and the system developments of the outer circle hardware electric circuit finally in of what time realize.

Keywords：EDA   Measurement   VHDL   FPGA/ CPLD