多特性双级功率变换器数字预估控制技术  

Digital Predictive Control Technology for Multi-characteristic Double-stage Power Converter

作　　者：杜贵平[1] 向锷[2] 张薇琳[2] 

机构地区：[1]华南理工大学电力学院,广东省广州市510641 [2]广州电器科学研究院,广东省广州市510300

出　　处：《中国电机工程学报》2011年第12期46-50,共5页Proceedings of the CSEE

基　　金：国家自然科学基金项目(50977033);"十一五"国家科技支撑计划重大项目(2008BAF34B09);广东省自然科学基金项目(7004271)~~

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。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.

关 键 词：多特性 双级功率变换器 数字预测控制 PID控制 控制时延 

分 类 号：TM46[电气工程—电器]