本文選題：NPC三電平 + 兩電平　； 參考：《安徽大學》2014年碩士論文

【摘要】：在工業(yè)領(lǐng)域以及日常生活領(lǐng)域?qū)δ孀兤鞯氖褂迷絹碓狡毡?逆變器的效率問題也越來越受到人們的關(guān)心,因此也就成為了一個研究熱點。 本文以逆變器的效率為研究對象,介紹了兩電平逆變器在SVPWM控制方式下的損耗模型,并對兩電平逆變器的控制策略、損耗等問題進行了研究和探討。結(jié)合兩電平逆變器的SVPWM控制策略對逆變器的效率進行了仿真研究,搭建了一個兩電平逆變器的實驗平臺,對損耗模型的正確性進行實驗驗證。 建立了二極管中點鉗位型(Neutral point clamped)三電平逆變器在SVPWM控制方式下的損耗模型,進行了損耗計算與分析,并與兩電平逆變器進行了效率比較。為了進一步驗證仿真效率比較的正確性,搭建了二極管中點鉗位型三電平逆變器的實驗平臺,進行了實驗驗證。 通過仿真結(jié)果與實驗結(jié)果,證明了基于本文SVPWM控制策略的兩種逆變器損耗模型的正確性,并驗證了三電平逆變器的輸出效率更高。
[Abstract]:The use of inverter is becoming more and more common in industry and daily life, and the efficiency of inverter has been paid more and more attention, so it has become a research hotspot. Taking the efficiency of inverter as the research object, this paper introduces the loss model of two-level inverter under SVPWM control mode, and studies and discusses the control strategy and loss of two-level inverter. Combined with the SVPWM control strategy of two-level inverter, the efficiency of the inverter is simulated, and an experimental platform of two-level inverter is built to verify the correctness of the loss model. The loss model of diode neutral point clamped) three-level inverter is established. The loss calculation and analysis are carried out, and the efficiency is compared with that of two-level inverter. In order to further verify the correctness of the simulation efficiency, the experimental platform of diode neutral-point clamped three-level inverter is built and verified. The simulation results and experimental results show that the two loss models based on the SVPWM control strategy are correct and the output efficiency of the three-level inverter is higher.
【學位授予單位】：安徽大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM464

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