利用谐波平衡法对Buck变换器中倍周期分岔的仿真研究.PDF

. 2 004 . 12 ( 6) 550 Computer Measurement Control : 1671- 4598( 2004) 06- 0550- 0 3 : T P 17 ; T N 7121 : A Buck 张金波, 李威, 张学武, 胡钢, 解大琴 ( , 2 13022) : Buck , Buck , , , , , : ; ; Simulation Study of Period Doubling Bifurcation in Buck Converters Using Harmonic Balance Zhang J nbo, L We , Zhang Xuewu , Hu Gang , X e Daq n ( College of Computer Info rmat on Eng neer ng, Heha U n vers ty , Chang zhou 2 13022 , Ch na) Abstract : T he per od doubl ng b furcat on n buck converters s stud ed us ng t he harmon c balance met hod A dynam c model of a buck converter n cont nuous conduct on mode under voltage mo de control s der vedAn ex act harmon c balance analys s s u sed to obta n a necessary and suff c ent co nd t on for a per od doubl ng b furcat on to occur and prov de nformat on on ts ex act lo ca- t o nUs ng the cond t on for b furcat o n, a feedforw ar d control s des gned that el m nates a per od doubl ng b furcat onT h s results n a w der range of allow ed source voltag e, and also n mpr oved output voltage regulat on ey words : per od doubl ng b fur cat on ; harmon c balance method ; f eedfo rw ard control , v v , 0 r o , y ( t) : , DC- DC y ( t) = gv r + G2 vo (2) G , 2 DC- DC , Buck , 2 , ,