基于CPLD和EPROM的逆变控制器的研究

详述了空间电压矢量脉宽调制（SVPWM）的基本原理，提出了利用EDA软件及美国ALIERA公司的可编程逻辑器件（CPLD）芯片和可擦除可编程只读存储器（EPROM），基于磁链轨迹跟踪法，对交流电机实施控制。该变频调速系统主电路采用交一直一交形式，以（CPLD）作为调速系统逆变电路功率开关器件（IPM）的逻辑控制器件。实验证明，采用该方法实现逆变器的控制具有灵活简便、高速且控制精确等优点，在变频调速系统中具有广泛的应用前景。

Study on the Control of Inverter Based on CPLD and EPROM

This paper presents the principles of space voltage pulse width modulation(SVPWM) in detail,and advances a method to exercise control on the speeds of AC motor drives based on based on flux linkage locus tracking by using software of EDA, complex programmable logic device(CPLD),chip of ALTER,and EPROM.The AC-DCAC voltage source inverter composes the main circuit of this variable frequency system and CPLD is the logic control device of the power device(IPM).The experiments prove that using this method to control inverter has the advantages of simplicity,flexibility,high efficiency and accuracy.It would be used in the system of variable frequency widely.