中文摘要：

针对双级变换多特性功率变换器,介绍数字控制对系统的作用和影响,分析数字预测控制原理,提出将预测控制与常规PID控制相结合的新型数字预估控制算法,并应用于以TMS320LF2407A为控制核心的双级变换多特性电源样机。实验表明,新型预测控制算法对存在控制滞后的数字化系统,具有较好的控制能力和动态响应,样机运行良好,可稳定输出直流、交流变频变幅等多种波形组合。

英文摘要：

Aiming at multi-characteristic double-stage power converter,the impact of digital control to the system was introduced,the principle of digital predictive control was analyzed,and a new digital predictive control algorithm combined with predictive control and PID control was proposed and applied to double-stage power converter prototype centering on TMS320LF2407A.The experiment results show that the new algorithm has better control ability and dynamic response to the digital system with control-delay.The prototype operates well and stably outputs DC/AC waveforms of frequency and amplitude conversion.