TY - GEN
T1 - Enhanced digital PI control with state-variable feedback loop for DC electric springs
AU - Yang, Yun
AU - Tan, Siew Chong
AU - Hui, Shu Yuen Ron
N1 - Publisher Copyright:
© 2017 IEEE.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/5/17
Y1 - 2017/5/17
N2 - DC electric springs (DCES) have recently been proposed as a potential solution for resolving the issue of power supply-demand imbalance of DC microgrids caused by the fluctuations of intermittent renewable energy sources (RES). Existing control of DCES based on conventional PI compensation are designed for good steady-state performance. The dynamic performance of DCES has not been explored. In this paper, an enhanced digital PI control comprising a state-variable feedback loop, aimed at optimizing both the steady-state and transient performances of the DCES, is proposed. Experiment results show that with this control, faster transient of the DCES is achievable and that the DCES can rapidly tame the possible fluctuations of renewable energy sources in a 48 V DC test grid more effectively.
AB - DC electric springs (DCES) have recently been proposed as a potential solution for resolving the issue of power supply-demand imbalance of DC microgrids caused by the fluctuations of intermittent renewable energy sources (RES). Existing control of DCES based on conventional PI compensation are designed for good steady-state performance. The dynamic performance of DCES has not been explored. In this paper, an enhanced digital PI control comprising a state-variable feedback loop, aimed at optimizing both the steady-state and transient performances of the DCES, is proposed. Experiment results show that with this control, faster transient of the DCES is achievable and that the DCES can rapidly tame the possible fluctuations of renewable energy sources in a 48 V DC test grid more effectively.
KW - DC electric springs (DCES)
KW - DC microgrids
KW - Digital feedback control
KW - Dynamic modeling
KW - State-variable feedback
UR - http://www.scopus.com/inward/record.url?scp=85019991101&partnerID=8YFLogxK
U2 - 10.1109/APEC.2017.7930854
DO - 10.1109/APEC.2017.7930854
M3 - Conference article published in proceeding or book
AN - SCOPUS:85019991101
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1242
EP - 1247
BT - 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Y2 - 26 March 2017 through 30 March 2017
ER -
