Imperial College London
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ProfessorBikashPal

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Power Systems
 
 
 
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Contact

 

+44 (0)20 7594 6172b.pal Website CV

 
 
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Assistant

 

Miss Guler Eroglu +44 (0)20 7594 6170

 
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Location

 

1104Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Guo:2022:10.1109/TSTE.2022.3163074,
author = {Guo, Y and Pal, BC and Jabr, RA},
doi = {10.1109/TSTE.2022.3163074},
journal = {IEEE Transactions on Sustainable Energy},
pages = {1492--1506},
title = {On the optimality of voltage unbalance attenuation by inverters},
url = {http://dx.doi.org/10.1109/TSTE.2022.3163074},
volume = {13},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In this paper, we investigate the control of inverterbased resources (IBRs) for optimal voltage unbalance attenuation(OVUA). This problem is formulated as an optimization program under a tailored dq-frame, which minimizes the negativesequence voltage at the point of common coupling (PCC) subjectto the current, active power, synchronization stability, and feasibility constraints. The program is inherently nonconvex andintractable. So, to guarantee the optimality, a rigorous optimality analysis is performed by leveraging analytical optimization.The analysis is divided into two cases: full mitigation of VU andpartial attenuation of VU. For the former case, we directly solvethe original program since the resultant VU is immediately deducible. For the latter one, directly solving the problem becomesvery hard. Thus, we reformulate the program into an equivalentbut more tractable form under certain conditions, by which theanalytical optimum can be derived. It is found that the optimumtrajectory has three stages (O1–O3), depending on two criticalboundary conditions (C1 and C2). We implement the optimumwith a photovoltaic (PV)-storage system by developing an OVUAcontroller. The proposed approach is demonstrated by dynamicsimulations under different VU conditions and is compared withseveral existing practices. Finally, we discuss the extension of theproposed solution in a multi-IBR system.
AU  - Guo,Y
AU  - Pal,BC
AU  - Jabr,RA
DO  - 10.1109/TSTE.2022.3163074
EP  - 1506
PY  - 2022///
SN  - 1949-3029
SP  - 1492
TI  - On the optimality of voltage unbalance attenuation by inverters
T2  - IEEE Transactions on Sustainable Energy
UR  - http://dx.doi.org/10.1109/TSTE.2022.3163074
UR  - https://ieeexplore.ieee.org/document/9745317
UR  - http://hdl.handle.net/10044/1/96119
VL  - 13
ER  -
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