Journal ArticleDOI
Impact of DC Line Voltage Drops on Power Flow of MTDC Using Droop Control
TLDR
In this paper, an analytical expression for estimating the distribution of balancing power which accounts for dc line voltage drops is derived for a five-terminal VSC-HVDC system.Abstract:
This paper discusses the impact of dc transmission voltage drops on the distribution of dc grid balancing power when dc voltage droop control is applied. DC line voltage drops in a multiterminal VSC-HVDC (MTDC) system result in nonuniform variations of dc bus voltages when changes in dc grid power flow occur. This in turn affects the distribution of instantaneous balancing power in a MTDC that uses dc voltage droop control. The values of dc voltage droop constants determine the degree of impact that dc voltage drops will have on the sharing of balancing power in the dc grid. In this paper, an analytical expression for estimating the distribution of balancing power which accounts for dc line voltage drops is derived. A five-terminal MTDC was modelled in PSCAD for demonstrating the effects of dc line voltage drops as well as for validating the proposed analytical expression which estimates balancing power distribution.read more
Citations
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Journal ArticleDOI
Review on Control of DC Microgrids and Multiple Microgrid Clusters
Lexuan Meng,Qobad Shafiee,Giancarlo Ferrari Trecate,Houshang Karimi,Deepak Fulwani,Xiaonan Lu,Josep M. Guerrero +6 more
TL;DR: In this paper, an extensive review on control schemes and architectures applied to dc microgrids (MGs) is presented, covering multilayer hierarchical control schemes, coordinated control strategies, plug-and-play operations, stability and active damping aspects, as well as nonlinear control algorithms.
Journal ArticleDOI
Distribution Voltage Control for DC Microgrids Using Fuzzy Control and Gain-Scheduling Technique
TL;DR: In this paper, a low-voltage bipolar-type dc microgrid with two energy storage units and a dc/dc converter was proposed to achieve both power sharing and energy management.
Journal ArticleDOI
Control Strategies for Microgrids With Distributed Energy Storage Systems: An Overview
TL;DR: The range of services distributed ES systems can provide, and the control challenges they introduce are reviewed, and multi-agent control with agents satisfying Wooldridge’s definition of intelligence is proposed as a promising direction for future research.
Journal ArticleDOI
Power Flow Algorithms for Multi-Terminal VSC-HVDC With Droop Control
Wenyuan Wang,Mike Barnes +1 more
TL;DR: In this paper, the problem posed by complex, nonlinear controllers for power system load flows employing multi-terminal voltage source converter (VSC) HVDC systems is addressed.
Journal ArticleDOI
Modeling of Multi-Terminal VSC HVDC Systems With Distributed DC Voltage Control
TL;DR: In this paper, the authors discuss the extension of electromechanical stability models of voltage source converter high voltage direct current (VSC HVDC) to multi-terminal (MTDC) systems.
References
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Book
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Weixing Lu,Boon-Teck Ooi +1 more
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Proceedings ArticleDOI
A sequential AC/DC power flow algorithm for networks containing Multi-terminal VSC HVDC systems
TL;DR: A sequential AC/DC power flow algorithm is proposed to solve networks containing Multi-terminal Voltage Source Converter High Voltage Direct Current systems, and it is shown that correctly defining the power setpoints with respect to the system bus instead of the converter bus requires additional iterative calculations.
Proceedings ArticleDOI
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