Tianjin University of Technology and Education 畢 業(yè) 設 計 專 業(yè)： 應用電子技術教育班級學號： 0201 33 學生姓名： 梁貴海 指導教師： 李杰 副教授 二00七年 六 月天津工程師范學院本科生畢業(yè)設計 基于IGBT的變頻電源設計Based on IGBT frequency conversion power source design專業(yè)班級：應教0201學生姓名：梁貴海指導教師：李杰 副教授系 別：電子工程系2007年6月摘 要隨著電力電子技術的飛速發(fā)展和各行各業(yè)對電氣設備控制性能要求的提高，用電設備對電源的要求越來越高。許多行業(yè)的用電設備都不是直接使用電網(wǎng)提供的交流電作為電源，而是通過各種形式對電網(wǎng)交流電進行變換，從而得到各自所需要的電能形式。目前，電源正朝著高效率，高穩(wěn)定度，高功率密度，低污染，模塊化發(fā)展。為了滿足輸出電壓和頻率可變的逆變電源的基本指標，調制方式上各種新穎的調制技術不斷涌現(xiàn)，控制上各種適合于不同要求的逆變器的控制方案被提了出來。本設計是基于SPWM逆變技術，將由單片機產生的SPWM波輸出作為IGBT的驅動信號，最后通過低通濾波,從而在輸出端得到一個無失真的正弦信號波形。為了便于觀察輸出端的電壓值，用數(shù)碼管監(jiān)測輸出電壓值。此設計電路可以產生頻率穩(wěn)定度、精度高的正弦波。關鍵詞：變頻電源；IGBT；SPWM調制；單片機ABSTRACTAs development and all trades and professions at full speed of electric and electronic technology control the improvement that performance required to the electric equipment, power consuming apparatus have more and more high expectations for power one. Power consuming apparatus of a lot of trades is not all the alternating current using the electric wire netting to offer directly, as the power, but vary the alternating current of electric wire netting through various forms, thus get the electric energy form needed each. At present, power towards high efficiency, high steady degree, high power density, low to pollute, module development. Output voltage and frequency variable going against the basic index which change power in order to meet, modulate way of different novelty modulation technology emerge constantly, control, have various suitable for different control scheme to go against person who become that require mention, come out. Design, based on SPWM go against technology of turning into, output drive signal in IGBT by SPWM wave that one-chip computer produce originally, strain the wave through being low and open finally, thus get one in the output end does not have distorted sine signal wave form. In order to observe the voltage value of the output end, in charge of the number to monitor and outputting voltage value. This is designed circuit can be produced the steady degree of frequency, precision is high and si