基于CPLD的交流异步电机空间矢量控制系统研究-电工理论与新技术专业论文.docxVIP

基于CPLD的交流异步窀辊空润矢量控澍系绫研究Research 基于CPLD的交流异步窀辊空润矢量控澍系绫研究 Research ofAC asynchronous motor’s space vector control system based onC糊 Abstract Following the rapid development ofeconomic,more and moro importance is attached to the energy sources problem by countries all over the world．Taking high effective edvantage of energy solarces is becoming more exigent,especially the power source which has a close rehfionship 10 our routine 1ife．A5 the most consulnef ofpower source，motor’S energy saving is p西纛more attention to．There躺many kinds ofmanners韬p程-form energy saving for motor, variable frequency adjusting speed control is the widest applied method at present in this field． As 8 method ofthis conlrol,SVPWM is used widely because ofi协predomlmnt pt,自tformance such嬲simpler contr01 model、easUy controlled bv如皿U、little plusant torque、lOW noise、and 赫gh advantage ofvoltage etc．s、，p强强疰is selected as the control method in this paper． Following the developments of electric and electronic、micro-electronic and computer this paper,by arlalyzing捌stics of aPID and M(：U control。CP∞combined with technology,the research po疏ofSVPWM control is switched to the镬酣al control schemes．h NfCU scheme is brought forth and its rationality and feasibility iS proved．Because of mutual complementarity between CPLD and MCU,this scheme can 01嘴粒叼mc the shortcomings of single MCU and s曲gle CPID scheme effectively and exert their merits自棚1B啦So this control systemhasmanym幽such搽hi融l蛾曲瑾移、lowpowerCoD匡uine、lowcost、strong secrecy p廿fommce、high speed、high precision、strong real time performance etc． Control principle ofSVP蝴is anlysed in detail in程娃s l搬per．Its normal realization m勰lOd is discussed too，and following this，a simpler realization method is deduced．Theofic analyse and expcrinaent result approved the feasibilily and v8熬姆of撼simple method．凰e development COurSe、exploitation flow、exploitation environment and hardware description language ofprogrammable logic device are discuss以in detail too。For dead-time problem of