TY - GEN
T1 - Single Integration for Multi-objective Control
AU - Chen, Linglin
AU - Shao, Shuai
AU - Gao, Fei
AU - Tarisciotti, Luca
AU - Dragicevic, Tomislav
AU - Wheeler, Patrick
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/11/29
Y1 - 2020/11/29
N2 - The saturation issue with paralleled PI controllers in multi-objective control is investigated. Dual-Active-Bridge (DAB) enabled DC micro-grid stabilization is chosen as a case study. The DAB converter has two control objectives: battery current regulation and the DC bus voltage stabilization. The conventional approach draws on two paralleled independent PI controllers for battery current regulation and DC bus stabilization. The output of the stabilization PI controller presents arbitrary values in the steady state. As a consequence, the saturation of the PI controllers may happen and can largely deteriorate the control performance. To address this issue, a simple but effective technique termed as single integration is proposed. The proposed method utilizes two linked controllers which share their integration value. Simulations and experiments on a 270V-270V, 20kHz, 1kW DAB converter are conducted to verify the theoretical claims.
AB - The saturation issue with paralleled PI controllers in multi-objective control is investigated. Dual-Active-Bridge (DAB) enabled DC micro-grid stabilization is chosen as a case study. The DAB converter has two control objectives: battery current regulation and the DC bus voltage stabilization. The conventional approach draws on two paralleled independent PI controllers for battery current regulation and DC bus stabilization. The output of the stabilization PI controller presents arbitrary values in the steady state. As a consequence, the saturation of the PI controllers may happen and can largely deteriorate the control performance. To address this issue, a simple but effective technique termed as single integration is proposed. The proposed method utilizes two linked controllers which share their integration value. Simulations and experiments on a 270V-270V, 20kHz, 1kW DAB converter are conducted to verify the theoretical claims.
KW - Dual-Active-Bridge
KW - Micro-grid
KW - Multi-objective control
KW - Stabilization
UR - http://www.scopus.com/inward/record.url?scp=85103152439&partnerID=8YFLogxK
U2 - 10.1109/IPEMC-ECCEAsia48364.2020.9368108
DO - 10.1109/IPEMC-ECCEAsia48364.2020.9368108
M3 - Conference contribution
AN - SCOPUS:85103152439
T3 - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
SP - 1260
EP - 1265
BT - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Y2 - 29 November 2020 through 2 December 2020
ER -