文档介绍：哈尔滨理下大学T学硕I:学位论文逆变器数控算法的研究与实现摘要近年来,由于电力电子技术的发展,逆变电源的应用深入到各个领域, 在应用中一般要求逆变电源具有高质量的输出波形。逆变电源输出波形质量主要包括两个方面:一是稳态精度高;二是动态性能好。因此研究既简单又具有优良动、静态性能的逆变电源控制方案,一直是电力电子领域的研究热点问题。论文在查阅大量国内外文献的基础上,针对单相逆变电源系统将模糊自整定PI控制与重复控制相结合组成复合控制。重复控制源于控制理论中的内模原理,是一种基于周期的补偿控制,能够完全消除周期性扰动造成的波形畸变,得到高精度的稳态输出波形。但是由于其自身局限性,动态性能难以有更大提高,这也是重复控制的缺点,从而考虑了应用模糊自整定PI控制对重复控制进行了改进。模糊自整定PI控制和重复控制相结合,组成复合控制。利用模糊自整定PI控制改善系统的动态特性,利用重复控制改善系统的稳态特性。为了减少数字PI参数整定的麻烦,克服因环境变化或扰动作用造成的系统性能的降低,应用模糊自整定PI控制器对PI参数进行自调整,实现系统的最佳控制。模糊自整定PI控制与重复控制相结合构成的复合控制器,能够克服系统参数摄动或外界扰动对系统造成的影响,使系统具有一定的鲁棒性和抗扰性。仿真结果验证了理论分析的正确性。关键词逆变器;重复控制;模糊自整定PI控制;复合控制哈尔滨理工大学T学硕上学位论文 The Research and Implementation ofDigital Control Algorithm forInverter A bstract In recent years,with the development ofpower electronics technology, inverterisused inevery field and thehi曲quality ofoutput waveform isrequired in these are two aspects for the quality ofoutput waveform: high steady—stateprecision and ransient thestudy on simple control with good staticand dynamic performance is a hot spot inpower electronic fields. On referring tolotsofliteratures,this bines fuzzy self-tuning PI control with repetitive control,which isused insingle—phase inverter power supply es from internalmodel principle of control theory,is a cycle pensation control,can eliminate thewaveform pletely caused byperiodic disturbances,and obtainshi曲一precision steady state output ,as itslimitations,there is adifficult to improve dynamic performance greater,which ing ofrepetitive control,and thereby the application offuzzy self-tuning PIcontrol isconsidered toimprove repetitive contr01. Fuzzy self-tuning PI control and repetitive bine to a pound make use offuzzy PI control toimprove thedynamic characteristics ofthesystem,and repetitive control toimprove thesteady-state order to reduce the troubles of tuning the numeric PI parameter, es thereduction ofsystemperformance caused by environmental change or disturbance,f