Design of variable - voltage variable - frequency inverter based on dsp 變頻空調用新型高性能開關電源的設計
Variable - voltage regulator 可變電壓調節器
Variable - voltage transformer 可調變壓器
Research and application of a new type scb initiator with variable - voltage output 新型可調電壓半導體橋起爆裝置的研制與應用
Application of variable - voltage adsorption nitrogen - preparation unit in fire prevention and extinguishing in coal mine 變壓吸附制氮機在煤礦井下防滅火中的應用
In order to implement an energy - saving method which keeps iron loss equal to copper loss using variable - voltage in light load , induction motor parameter identification at any moment is a key problem 對于輕載調壓使銅損等于鐵損的這一節能方法而言,在線辨識出電機的參數是一個關鍵點。
This paper studies the variable - voltage energy saving theory and its implementation for asynchronous motor with light load , compares several kinds of scheme of improving efficiency in detail and confirms the variable - voltage energy saving method , that is adjusting the input voltage by detecting the iron loss and copper loss of motor directly . in addition , the directness * , simpleness and availability of the method are verified by the emulational experimental results with simulink of the matlab . the circuit of the general inverter based on the tms320f240 dsp was used in this paper , and the practicable program was compiled 本文分析了異步電動機輕載時降壓節能運行的原理,對幾種提高效率的方案進行了比較,確定了通過直接檢測電動機鐵損和銅損來實時調節輸入電壓以達到高效節能目的的控制方法,應用matlab軟件對系統進行仿真,在基于tms320f240dsp的通用型變頻器上編制了實用化的程序,形成了完整的樣機,對其進行了測試,并給出了試驗結果。