Paper Info
Title
Consensus-Based Current Sharing and Voltage Balancing in DC Microgrids With Exponential Loads
Abstract
In this work, we present a novel consensus-based secondary control scheme for current sharing and voltage balancing in dc microgrids (DCmGs), composed of distributed generation units (DGUs), dynamic RLC lines, and nonlinear ZIE (constant impedance, constant current, and exponential) loads. Situated atop a primary voltage control layer, our secondary controllers have a distributed structure and utilize information exchanged over a communication network to compute necessary control actions. Besides showing that the desired objectives are always attained in steady state, we deduce sufficient conditions for the existence and uniqueness of an equilibrium point for constant power loads— <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$E$ </tex-math></inline-formula> loads with zero exponent. Our control design hinges only on the local parameters of the generation units, facilitating plug-and-play operations. We provide a voltage stability analysis and illustrate the performance and robustness of our designs via simulations. All results hold for arbitrary, albeit connected, mG and communication network topologies.
Year
DOI
Venue
2022
10.1109/TCST.2021.3120321
IEEE Transactions on Control Systems Technology
Keywords
DocType
Volume
Consensus algorithms,distributed control,microgrids (mGs),nonlinear control
Journal
30
Issue
ISSN
Citations 
4
1063-6536
0
PageRank 
References 
Authors
0.34
9
3
Name
Order
Citations
PageRank
Pulkit Nahata1103.95
Mustafa S. Turan201.69
Giancarlo Ferrari-Trecate383177.29