數(shù)字式直流調速系統(tǒng)

全文約5000字 論述翔實

摘要：近年來,由于計算機應用技術的快速發(fā)展，國外交直流系統(tǒng)數(shù)字化已經(jīng)達到實用階段。以微處理器為核心的數(shù)字控制系統(tǒng)硬件電路的標準化程度高，制作成本低，且不受器件溫度漂移的影響。所以微機數(shù)字控制系統(tǒng)在各個方面的性能都遠遠優(yōu)于模擬控制系統(tǒng)且應用越來越廣泛。本文設計的數(shù)字化直流調速系統(tǒng)是用直流電動機作為被控對象，由8031單片機作控制器來實現(xiàn)的。特點是用單片機取代模擬觸發(fā)器、電流調節(jié)器、速度調節(jié)器及邏輯切換等硬件設備。本設計進行了硬件設計和軟件編程、以及計算機仿真，同時應用在金屬切削機上，能夠滿足現(xiàn)代化生產(chǎn)要求。

關鍵詞：單片機，雙閉環(huán)，直流調速系統(tǒng)，數(shù)字控制

The DC Speed Control System Controlled
by Single-chip Computer

ABSTRACT: With the fast development of computer application technology, the digitization of AC/DC speed control system has reached the applied stage overseas. The hardware circuit of digital control system centered by microprocessor possesses the advantages that it has higher standardization and lower cost, and it doesn’t be influenced by temperature drift of devices.So the digital control system is being used widely since its function has exceeded analog control system in every aspect. The digital DC speed control system designed by this paper is composed of DC motor and 8031 single-chip computer, of which the DC motor is used as the controlled object and the 8031 single-chip computer as controller. The system has the characteristic that the hardware devices are replaced by single-chip computer such as the analog trigger, current regulator, rotation regulator, logic handoff, etc. The hardware design, the software program and the computer simulation are completed in the design. As a result, the digital DC speed control system is applied into the metal cutting machine and it can satisfy the needs of modern manufacture.

Keywords: single-chip computer；double closed-loop；DC speed control system；digital control


部分參考文獻

[6]潘新民,王燕芳.微型計算機控制技術[M].北京：電子工業(yè)出版社,2003.
[7]Bimal K Bose.Modern Power Electronics and AC Drives[M].北京：機械工業(yè)出版社,2003.
[8]余永權,汪明慧,黃英.單片機在控制系統(tǒng)中的應用[M].北京：電子工業(yè)出版社,2003.
[9]教育部高等教育司,北京市教育委員會.高等學校畢業(yè)設計（論文）指導手冊[M].北京:高等教育出版社,經(jīng)濟日報出版社,1998.
[10]周淵深.交直流調速系統(tǒng)與MATLAB仿真[M].北京：中國電力出版社，2004.