低壓智能斷路器的軟硬件開發

電氣工程論文編號:DQ128   論文字數:12571,頁數:42

目  錄
摘要………………………………………………………………………………………Ⅰ
Abstract …………………………………………………………………………………Ⅱ
1緒論………………………………………………………………………………………1
 1.1 背景…………………………………………………………………………………1
 1.2 任務和目標 …………………………………………………………………………1
2總體設計方案……………………………………………………………………………2
 2.1 系統總體結構 ………………………………………………………………………2
 2.2 系統硬件結構 ………………………………………………………………………3
 2.3 系統軟件程序框圖  …………………………………………………………………4
3系統硬件模塊的選擇與建立  …………………………………………………………5
 3.1 系統各單元的選擇  …………………………………………………………………5
 3.2 三相電能專用計量芯片ATT7022A   …………………………………………………5
 3.2.1功能簡介 ………………………………………………………………………5
 3.2.2芯片特點 ………………………………………………………………………5
 3.2.3內部框圖 ………………………………………………………………………6
 3.2.4系統功能 ………………………………………………………………………7
 3.3 控制單元PIC16F877…………………………………………………………………11
 3.4 LCD顯示單元CM12864-10 …………………………………………………………13
 3.5 溫度檢測單元DS1820   ……………………………………………………………14
 3.6 基本結構的建立 ……………………………………………………………………18
4系統軟件程序 …………………………………………………………………………22
 4.1 PIC16F877部分控制程序 ……………………………………………………………22 
 4.1.1 LCD顯示程序  ………………………………………………………………22
 4.1.2 SPI串行通訊程序  ……………………………………………………………28
 4.2 ATT7022A校表程序   ………………………………………………………………30
 4.2.1 復位ATT7022A   ……………………………………………………………30
 4.2.2寫啟動電流   …………………………………………………………………30
 4.2.3 寫A相功率增益  ……………………………………………………………30
 4.2.4 寫A、B、C相電壓校正  ……………………………………………………31
5總結 ……………………………………………………………………………………32
致謝   ……………………………………………………………………………………33
參考文獻 …………………………………………………………………………………34
附錄 ………………………………………………………………………………………35

摘  要
 
 隨著全球電力工業的飛速發展，低壓電器與電氣控制技術在工農業生產和人們的日常生活中應用的越來越廣泛。為了保證生產生活的正常進行，在配電電路、電動機或其他用電設備中接入一個斷路器，用于自動切斷故障線路，以保護用點設備不會受過載、短路等影響而損壞。
 傳統的斷路器僅有簡單的保護功能，缺少一些直觀的觀測且運用不夠靈活。為此，我們開設本課題，研究低壓斷路器的軟硬件,將智能化運用到斷路器中，一方面可以在同一臺斷路器上實現多種功能，包括過欠壓跳閘保護，短路跳閘保護，高溫保護以及參數顯示等功能；另一方面可使斷路器實現與中央控制計算機雙向通信構成智能化的監控、保護、信息網絡系統，使斷路器從基本的原始的保護功能發展到智能化的保護功能。
 
關鍵詞：斷路器  智能化  低壓  軟件開發
 
Abstract

With the global power industry's rapid development，Low-voltage electrical appliances and electrical control technology in the industrial and agricultural production and people's daily lives more and more extensive application of. In order to ensure the normal production and life，In the distribution circuits, motor or other electrical equipment in the access of a circuit breaker used for the automatic cut off Fault line to protect the equipment will not have to set point, short-circuit, and other effects of damage.
    The traditional circuit breaker only simple protection , lack of visual observation and not enough flexibility in the use. So we set up this topic, research Low-voltage circuit breakers on the hardware and software, use intelligent in the circuit breaker, On the one hand, the same circuit breaker can achieve multiple functions, including tripping Over-under voltage protection, short circuit protection tripping, high-temperature protection and parameters, and other functions; on the other hand it can achieve the central control computer and a two-way communication intelligent Monitoring, protection, information network system, so that the original circuit breaker from the basic protection to the development of intelligent protection.

Keywords：Circuit breakers, Intelligent, Low-voltage, Software development