SPWM變頻電源雙閉環控制的設計和研究

摘要：本文研究一種電壓電流雙閉環瞬時值控制的單相SPWM變頻電源，分析了閉環參數對系統的影響，給出了參數設計的依據和方法。所研制的SPWM變頻電源輸出波形質量好，頻率可在較寬的范圍內變化，實驗結果證明了該設計的可行性。 敘詞：變頻電源，正弦脈寬調制，瞬時值控制 Abstract：This paper researched a single-phase SPWM inverter instantaneously controlled by the voltage and current loops, analyzed the effect of closed-loop parameters to system, and given the rules and method s of parameters design. A SPWM inverter is designed has good quality output waveforms and wide range frequency. The experimental results show the feasibility of the design. Keyword：inverter, SPWM，instantaneous control