TY - GEN
T1 - Energy Management in Microgrids: Sufficient Conditions for Convex Bi-Directional Converter Operation Model
AU - Liang, Zipeng
AU - Chung, Chi Yung
AU - Dong, Hanjiang
AU - He, Shangyang
AU - Yin, Xin
AU - Chen, Jianrun
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024/10
Y1 - 2024/10
N2 - Hybrid AC/DC microgrids with bi-directional converters (BDCs) have garnered increasing attention in recent years due to their ability to combine the benefits of both AC and DC microgrids. However, the non-convex nature of the BDC constraint, which enforces non-simultaneous rectification and inversion, often leads to locally optimal solutions and significant computational challenges. To overcome this issue, we develop a convex model for hybrid AC/DC microgrids by identifying sufficient conditions to relax the non-convex BDC constraint. Additionally, we extend these conditions to scenarios involving branch flow constraints, thereby broadening the applicability of the model. Finally, we validate the derived conditions and demonstrate the advantages of the proposed convex model through case studies on hybrid AC/DC microgrids.
AB - Hybrid AC/DC microgrids with bi-directional converters (BDCs) have garnered increasing attention in recent years due to their ability to combine the benefits of both AC and DC microgrids. However, the non-convex nature of the BDC constraint, which enforces non-simultaneous rectification and inversion, often leads to locally optimal solutions and significant computational challenges. To overcome this issue, we develop a convex model for hybrid AC/DC microgrids by identifying sufficient conditions to relax the non-convex BDC constraint. Additionally, we extend these conditions to scenarios involving branch flow constraints, thereby broadening the applicability of the model. Finally, we validate the derived conditions and demonstrate the advantages of the proposed convex model through case studies on hybrid AC/DC microgrids.
KW - bi-directional converters
KW - convex model
KW - energy management
KW - Hybrid AC/DC microgrid
KW - sufficient conditions
UR - https://www.scopus.com/pages/publications/105002234511
U2 - 10.1109/APPEEC61255.2024.10922552
DO - 10.1109/APPEEC61255.2024.10922552
M3 - Conference article published in proceeding or book
AN - SCOPUS:105002234511
T3 - Asia-Pacific Power and Energy Engineering Conference, APPEEC
SP - 1
EP - 5
BT - 2024 IEEE PES 16th Asia-Pacific Power and Energy Engineering Conference
PB - IEEE Computer Society
T2 - 16th IEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2024
Y2 - 25 October 2024 through 27 October 2024
ER -