【摘要】 介绍了基于凌阳SPMC75F2413A单片机的三相变频电源的硬件与软件实现,分析了IGBT缓冲电路,并给出了理论计算和设计方法。采用C语言模块编程,设计了实现VVVF控制的程序,使用LABVIEW设计了变频电源的调试软件。该变频电源实现了闭环稳压,且有过流保护和缺相保护,实现了对电机的U/f恒压比控制。更多还原

【Abstract】 The hardware and software realization of three-phase frequency converter based on Sunplus SPMC75F2413A is introduced.Then the snubber circuit of IGBT is analyzed and the theory calculation and design method are given out.The result shows that frequency converter realized the closed-loop stabilizing of the voltage,overflow protection and open-phase protection as well as the VVVF control of motor by adapting language C Programming,designing realization control programme of VVVF and using debugging software of LABVIEW.更多还原