摘 要
本設計論文介紹了一種基于DSP芯片的全數字控制單相變頻器的設計,隨著變頻調速技術的不斷發展,變頻器的應用越來越廣泛,變頻器除了具有卓越的調速性能之外,還有顯著的節能作用,是企業技術改造和產品更新換代的理想調速裝置。本論文提出了一種數字控制的單相逆變器結構,詳細論述了系統的參數設計,整流工作的基本工作原理,逆變的基本原理及SPWM正弦脈沖寬度調制。基于DSP的數字控制技術能大大改善產品的一致性,同時增加了控制的柔性,提高了整個系統的穩定性和可靠性。
關鍵詞:全數字控制;整流;逆變器;DSP;SPWM正弦脈沖寬度調制。
Abstract
This design paper introduced one kind based on the DSP chip entire numerical control single-phase frequency changer design, along with the frequency conversion velocity modulation technology unceasing development, the frequency changer application is more and more widespread, the frequency changer besides has the remarkable velocity modulation performance, but also has the remarkable energy conservation function, is the enterprise technological transformations and the product renewal ideal speeder. The present paper proposed one kind of numerical control single-phase inversion structure, in detail elaborated the system parameter design, the rectification work basic principle of work, the contravariant basic principle and the SPWM sine pulse width modulation. Can greatly improve the product based on the DSP numerical control technology the uniformity, simultaneously increased the control flexibility, enhanced the overall system stability and the reliability.