基于DSP的前馈控制变压变频逆变电源设计  

Design of VVVF Inverter Power with Feed Forward Based on DSP

作　　者：范子林[1] 王正仕[1] 陈辉明[1] 蔡超峰[1] 

机构地区：[1]浙江大学,电气学院,浙江杭州310027

出　　处：《电力电子技术》2010年第11期44-46,共3页Power Electronics

基　　金：国家自然科学基金重点项目(504437010);浙江省自然科学基金项目(X106873);台达电力电子科教发展计划项目(DREG2010004)~~

摘　　要：在分析研究逆变电源的各种典型控制方法后,提出一种基于DSP的前馈控制方案,给出前馈控制的基本原理,用Matlab仿真验证了其可行性;根据该方案的特点讨论了其实现过程中可能遇到的问题,并给出解决方案及DSP实现过程。另外,为满足工程要求的最大功率限制,设计了一种通过差分采样电路获得逆变电流信号,后经数字PI调节器实现限流的控制方案,并给出设计过程。实验证明,该方案可以很好地满足工程目标。To cater to the special demands in industrial applications,a feed forward controller based on digital signal processor（DSP）,compared with various kinds of typical controlling means,is presented.The paper reveals the fundamental principle of the feed forward controller,which proved available by Matlab emulation.And also the problems that might be encountered when implemened are discussed,along with the solutions and implementation procedure using DSP.In spite of this,to meet the maximum power limit in industrial applications,a differential sampling circuit is introducted to obtain current signal of the inverter,and then current limiting is achieved using a digital PI regulator.Detailed design process is demonstrated,which proved by experiments can cater to industrial needs very well.

关 键 词：逆变电源 前馈控制 差分采样 

分 类 号：TM464[电气工程—电器]