Power flow control converter for meshed LVDC distribution grids

Purgat, Pavel; Mackay, Laurens; Prakoso, Ryan Adilardi; Ramírez-Elizondo, Laura; Bauer, Pavol

doi:10.1109/icdcm.2017.8001089

Cited by 10 publications

(3 citation statements)

References 12 publications

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“…and the matrices A, B and N are in eq. (31). The transfer functions between control inputs and output voltages when the disturbances on voltages V 1 and V 2 are neglected are obtained using the well-known relation for the transfer function matrices…”

Section: B Power Flow Control Converter Modelmentioning

confidence: 99%

“…However, despite the advances in the power electronics the cost and losses remain a bottleneck. Similar solutions using partially rated power flow control converters (PFCC) were independently proposed for high voltage dc and lvdc [25], [30], [31], [32]. The PFCC reduces losses from the system perspective with processing only a fraction of the power that it is controlling.…”

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confidence: 99%

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Partially Rated Power Flow Control Converter Modeling for Low-Voltage DC Grids

Purgat

Blij

Qin

et al. 2020

IEEE J. Emerg. Sel. Topics Power Electron.

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Scalable and robust low voltage direct current distribution (lvdc) networks require solutions allowing flexible power flow control and reliable short-circuit protection. In this paper, the continuous full-order large and small signal models of a partially rated power flow control converter (PFCC) are derived utilizing the generalized averaging method. The large signal model of the PFCC is coupled with a model of the lvdc grid. Due to the state-space representation the combined model of the PFCC and the lvdc grid is suitable for easy algorithmization, and efficient simulation. These advantages make them essential tools for studying and optimizing of scalable lvdc systems with decentralized power flow control based on the PFCC. The PFCC models provide insights into controller design and stability analysis. The models are experimentally validated, and the functionality of the PFCC is demonstrated in a laboratoryscale microgrid.

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Section: B Power Flow Control Converter Modelmentioning

confidence: 99%

mentioning

confidence: 99%

Partially Rated Power Flow Control Converter Modeling for Low-Voltage DC Grids

Purgat

Blij

Qin

et al. 2020

IEEE J. Emerg. Sel. Topics Power Electron.

Self Cite

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“…They can also be useful to manage power exchanges between microgrids (Vuyyuru et al, 2019). This can be done with series-connected converters, which insert a small voltage in series with the line (Balasubramaniam et al, 2019;Purgat et al, 2017) or with shunt-connected converters which modify the power flow by controlling the line voltage, and which are mainly designed for low voltage grids (Jovcic and Ooi, 2010;Natori et al, 2018). Although series-connected PFCs are generally more efficient than shunt-connected ones (Natori et al, 2017), the latter are capable of filling in other essential functions such as DC circuit breaking and line voltage regulation.…”

Section: Introductionmentioning

confidence: 99%