數(shù)字式直流調(diào)速系統(tǒng)

全文約5000字 論述翔實(shí)

摘要：近年來(lái),由于計(jì)算機(jī)應(yīng)用技術(shù)的快速發(fā)展，國(guó)外交直流系統(tǒng)數(shù)字化已經(jīng)達(dá)到實(shí)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(biāo)準(zhǔn)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(jī)數(shù)字控制系統(tǒng)在各個(gè)方面的性能都遠(yuǎn)遠(yuǎn)優(yōu)于模擬控制系統(tǒng)且應(yīng)用越來(lái)越廣泛。本文設(shè)計(jì)的數(shù)字化直流調(diào)速系統(tǒng)是用直流電動(dòng)機(jī)作為被控對(duì)象，由8031單片機(jī)作控制器來(lái)實(shí)現(xiàn)的。特點(diǎn)是用單片機(jī)取代模擬觸發(fā)器、電流調(diào)節(jié)器、速度調(diào)節(jié)器及邏輯切換等硬件設(shè)備。本設(shè)計(jì)進(jìn)行了硬件設(shè)計(jì)和軟件編程、以及計(jì)算機(jī)仿真，同時(shí)應(yīng)用在金屬切削機(jī)上，能夠滿足現(xiàn)代化生產(chǎn)要求。

關(guān)鍵詞：?jiǎn)纹瑱C(jī)，雙閉環(huán)，直流調(diào)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


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