Power flow control in DC transmission grids using mechanical and semiconductor based DC/DC devices

Jovcic, Dragan; Hajian, M.; Zhang, H.; Asplund, Gunnar

doi:10.1049/cp.2012.1972

Cited by 77 publications

(46 citation statements)

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“…Due to the advancements of power electronics technology, high-power de-de converters can provide power flow control functions in MTDC grids; enhancing the flexibility of grid operation [16]- [18], [23] , [31]- [34]. By adjusting the de-de converter transformation ratio, the voltage at one terminal of the converter, or the power flowing through the converter, can be regulated, adding a degree of freedom to the control of the MTDC grid [22] .…”

Section: Flexible Operation Of Mtdc Gridsmentioning

confidence: 99%

“…where ~y = y* -y (16) are new elements of the mismatch vector and u represents the vector of the associated control variables. In the case of an ideal CPFC (i.e., lossless CPFC), shown in Fig.…”

Section: B Inclusion Of Cpfc Into the Mtdc Load Flow Problemmentioning

confidence: 99%

“…Power flow control in MTDC grids is among the most important research topics addressed in recent years [14]- [16]. In MTDC grids, the flow of power through the de lines depends solely on the voltage difference between both ends of the transmission line and the line resistance.…”

Section: Introductionmentioning

confidence: 99%

“…At the time of writing, there were several studies that focus on the use of de-de converters for power flow control in MTDC grids [15] , [16] , [19] , [20] , but they are centered on proposing power converter topologies, and have not addressed such converters' influence on the MTDC grid operation and control. There is also a lack of extant literature on the subject of the influence of de-de converter stations on the supervisory control of MTDC grids.…”

Section: Introductionmentioning

confidence: 99%

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Flexible Control of Power Flow in Multiterminal DC Grids Using DC–DC Converter

Rouzbehi

Candela

Luna

et al. 2016

IEEE J. Emerg. Sel. Topics Power Electron.

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Abstract-This paper proposes an efficient control framework that utilizes de-de converters to achieve flexible power flow control in multiterminal de (MTDC) grids. The de-de converter employed in this paper is connected in cascade with the de transmission line, and is therefore named cascaded power flow controller (CPFC). In this paper, a two-layer control strategy is developed for the operation and control of voltage source converter stations and CPFC station in MTDC grids. At the primary control layer, a novel differential voltage droop control is developed, while at the secondary control layer, a modified de power flow algorithm-employing the new CPFC frameworkis implemented. The overall control strategy enables the CPFC to regulate the power flow in the de transmission line. The primary control guarantees the transient stability of the CPFC, and the secondary control system ensures the desired steady-state operation. The proposed voltage droop control framework helps the MTDC grid to remain stable in the event of a communication failure between the primary and secondary control layers. Static analysis and dynamic simulations are performed on the CIGRE B4 de grid test system, in order to confirm the effectiveness of the proposed control framework for power flow regulation in MTDC grids.Index Terms-CIGRE B4 de grid, de power flow control, multiterminal de (MTDC) grid, power system control, voltage droop control.

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Section: Flexible Operation Of Mtdc Gridsmentioning

confidence: 99%

Section: B Inclusion Of Cpfc Into the Mtdc Load Flow Problemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Flexible Control of Power Flow in Multiterminal DC Grids Using DC–DC Converter

Rouzbehi

Candela

Luna

et al. 2016

IEEE J. Emerg. Sel. Topics Power Electron.

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“…shunt proposals can be seen in [10], [11]. Among seriesdevices, different topologies are being considered: switching resistances in series with cables are presented in [9].…”

mentioning

confidence: 99%

Modelling and Control of an Interline Current Flow Controller for Meshed HVDC Grids

Sau-Bassols

Prieto‐Araujo

Gomis‐Bellmunt

2017

IEEE Trans. Power Delivery

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Abstract-This article is focused on the modelling and control of an interline Current Flow Controller (CFC) for meshed HVDC grids. The operation states of the CFC are presented and an average model is derived. The average model is used to perform steady-state analysis on a 3-terminal meshed grid, showing the current change capabilities and the benefits on the operation area. The converter control is designed using a linearised model. The system performance of the CFC is tested by means of simulation in a 3-terminal grid and in a 5-terminal grid.

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Design and Research of 100KV DC Power Supply Based on SiC

Jiang

2019

Lecture Notes in Electrical Engineering

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Power flow control in DC transmission grids using mechanical and semiconductor based DC/DC devices

Cited by 77 publications

References 0 publications

Flexible Control of Power Flow in Multiterminal DC Grids Using DC–DC Converter

Flexible Control of Power Flow in Multiterminal DC Grids Using DC–DC Converter

Modelling and Control of an Interline Current Flow Controller for Meshed HVDC Grids

Design and Research of 100KV DC Power Supply Based on SiC

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