电力电子滤波器的控制系统和软件设计电力电子与电力传动专业论文.docxVIP

C O C O N T R O L S Y S T E M A N D S O F T W A R E D E S IG N O F P O W E R E L E C T R O N IC S F IL T E R A B S T R A C T In m odem electric pow er system s, du e to th e u se o f large scales of n o n -lin ear lo ad s, th e im pact cau sed b y h arm onics and reactive pow er is b ecom ing an increasin gly seriou s p ro blem . P o w er electron ics filter can supp ress h arm on ics an d com p en sate reactiv e p ow er, w ith fast resp on se and a go od dyn am ic com p en sation effect. T h erefo re, p o w er electro n ics filter h as b eco m e a h o tsp o t in p ow er electro n ics research in g because of its sup erior com p en sation p erform an ce. F irst o f all, th e p arallel p o w er electro n ics filter can b e d iv id ed in to tw o typ es - w ith or w ithou t harm onic detection .T hen , this pap er exp lains th e fu nction o f pow er electron ics filter w ith harm onic d etection an d briefly analyses its adv an tages also the facin g p rob lem s, w hich leads to th e m ethod and p rin cip le of pow er electron ic filter w ith o u t h a rm o n ic d e te c tio n . S econ dly, this paper particularly introdu ces th e k ey techn o lo g ies in vo lv ed in th e d esign o f p ow er e lectro nics filter an d their p rinciple, in clud ing phase-lo ck ed lo op , S V P W M and P I co ntro l.T h is p ap er ha s an alyzed th e m od el o f ph ase-lo ck ed loop an d m ad e certain im pro v em en ts in P L L b y d esig n ing th e param eters o f low -p ass filter w ith in p hase-lock ed lo op , m ak ing th e p h ase-lock ecl characteristics b etter. O n con sidering th e feature o f pow er elec tronic filter, that is its inpu t and ou tput sign als are A C signals, th is pap er introd uces P R con trol in cu rrent loop so th at it can m ake com p arison betw een P R and P I con tro l o v er th e co ntro l effec t. T h e fo llo w ing is param eter design o f du al clo sed -loo p co ntrollers t