TY - JOUR
T1 - A Novel Periodic Energy Control for Nonisolated DC-DC Converters With Overshoot Suppression
AU - Ma, Tianlu
AU - Jiang, Chaoqiang
AU - Wang, Xiaosheng
AU - Xiang, Jingchun
AU - Mo, Liping
AU - Chau, Kwok Tong
N1 - Publisher Copyright:
© 1986-2012 IEEE.
PY - 2023/10/1
Y1 - 2023/10/1
N2 - A novel periodic energy control (PEC) strategy for dc-dc converters is proposed in this letter, where the port nearest to the load is selected as the energy control target, considering the loss of switching and passive components. A simplified energy calculation method is derived to replace the integration methods in terms of the possible error during successive integral calculations, meanwhile reducing the computational burden. Furthermore, PEC is extended to other nonisolated dc-dc converters. Finally, the high accuracy of the simplified energy calculation is proven in simulations, and a 100-kHz synchronous buck converter is established to verify the proposed PEC. During the reference voltage stepping, the inductor saturation and overshoot occur in proportional-integral control by tuning the duty cycle, whereas the output voltage can track the reference within 1.4 ms without any overshoot in single-loop PEC, which illustrates its advantage in overshoot suppression. Also, dual-loop PEC shares the same conclusion.
AB - A novel periodic energy control (PEC) strategy for dc-dc converters is proposed in this letter, where the port nearest to the load is selected as the energy control target, considering the loss of switching and passive components. A simplified energy calculation method is derived to replace the integration methods in terms of the possible error during successive integral calculations, meanwhile reducing the computational burden. Furthermore, PEC is extended to other nonisolated dc-dc converters. Finally, the high accuracy of the simplified energy calculation is proven in simulations, and a 100-kHz synchronous buck converter is established to verify the proposed PEC. During the reference voltage stepping, the inductor saturation and overshoot occur in proportional-integral control by tuning the duty cycle, whereas the output voltage can track the reference within 1.4 ms without any overshoot in single-loop PEC, which illustrates its advantage in overshoot suppression. Also, dual-loop PEC shares the same conclusion.
KW - dc-dc converters
KW - overshoot
KW - Periodic energy control (PEC)
UR - http://www.scopus.com/inward/record.url?scp=85172417252&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2023.3292358
DO - 10.1109/TPEL.2023.3292358
M3 - Journal article
AN - SCOPUS:85172417252
SN - 0885-8993
VL - 38
SP - 12325
EP - 12330
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 10
ER -