TY - JOUR
T1 - Optimal operation of electric springs for voltage regulation in distribution systems
AU - Zheng, Yu
AU - Kong, Weicong
AU - Song, Yue
AU - Hill, David J.
N1 - Funding Information:
Manuscript received June 26, 2019; accepted November 9, 2019. Date of publication November 21, 2019; date of current version January 17, 2020. This work was supported in part by the Science and Technology Project of China Southern Power Grid (ZBKJXM20170049), in part by the National Natural Science Foundation of China under Project 71801021, and in part by the Hong Kong RGC Theme-Based Research Scheme under Project T23-701/14-N. Paper no. TII-19-2709. (Corresponding author: Yu Zheng.) Y. Zheng is with the School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410004, China, and also with the Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong (e-mail: [email protected]).
Funding Information:
He is currently a Postdoctoral Fellow with the Department of Electrical and Electronic Engi-neering, University of Hong Kong. He received the Hong Kong Ph.D. Fellowship from the Re-search Grants Council of Hong Kong, and CLP Fellowship in electrical engineering from the University of Hong Kong during his Ph.D. studies. His research interests include stability analysis and optimization and control of energy network systems.
Publisher Copyright:
© 2005-2012 IEEE.
PY - 2020/4
Y1 - 2020/4
N2 - In this article, we propose an optimal voltage control method for critical buses in an active distribution system using electric springs (ESs). The proposed optimization model relies on both an accurate ES and a load model. The real-time load parameters are determined using the nonintrusive load monitoring (NILM) technique, which provides a flexible and convenient power profile disaggregation. The optimization problem is solved in both a centralized and distributed manner with the minimum ES voltage outputs. A control center communicates with all ESs and collects system information in a centralized scheme, while a multiagent concept is built into the distributed scheme to manage the communication, optimization, and control of ESs located in different areas. The proposed voltage optimal control methods with ESs are verified and compared on a modified IEEE 15-bus distribution network. The results are promising; voltage regulation capability is verified, indicating advantages in the proposed optimal operation strategy over the previous ES control strategy.
AB - In this article, we propose an optimal voltage control method for critical buses in an active distribution system using electric springs (ESs). The proposed optimization model relies on both an accurate ES and a load model. The real-time load parameters are determined using the nonintrusive load monitoring (NILM) technique, which provides a flexible and convenient power profile disaggregation. The optimization problem is solved in both a centralized and distributed manner with the minimum ES voltage outputs. A control center communicates with all ESs and collects system information in a centralized scheme, while a multiagent concept is built into the distributed scheme to manage the communication, optimization, and control of ESs located in different areas. The proposed voltage optimal control methods with ESs are verified and compared on a modified IEEE 15-bus distribution network. The results are promising; voltage regulation capability is verified, indicating advantages in the proposed optimal operation strategy over the previous ES control strategy.
KW - Distribution systems
KW - electric spring (ES)
KW - noninstructive load monitoring (NILM)
KW - optimal operation
KW - voltage regulation
UR - http://www.scopus.com/inward/record.url?scp=85078697354&partnerID=8YFLogxK
U2 - 10.1109/TII.2019.2954890
DO - 10.1109/TII.2019.2954890
M3 - Article
AN - SCOPUS:85078697354
SN - 1551-3203
VL - 16
SP - 2551
EP - 2561
JO - IEEE Transactions on Industrial Informatics
JF - IEEE Transactions on Industrial Informatics
IS - 4
ER -