Adapted Newton-Raphson Power Flow Method for a DC Traction Network including Non-receptive Power Sources and Photovoltaic Systems

Salih, Mohammed; Koch, Michael; Baumeister, Dirk; Wazifehdust, Mahjar; Steinbusch, Philippe; Zdrallek, Markus

doi:10.1109/isgteurope.2019.8905722

Cited by 5 publications

(8 citation statements)

References 10 publications

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“…Unfortunately, these models are limited both in the modelling of the bus load and of the grid elements. Trolleygrid studies tend to limit themselves to a single section, with an ideal trapezoidal traction power load [3], [4], [12], [15], [16], [23], [24]. A trapezoidal profile assumes a constant acceleration phase from the bus stop, followed by a constant-velocity cruising at 50 km/hr, and then a deceleration toward the next bus stop.…”

Section: A Modelling Of Trolleygrids In Literaturementioning

confidence: 99%

A Complete DC Trolleybus Grid Model With Bilateral Connections, Feeder Cables, and Bus Auxiliaries

Diab

Saffirio

Mouli

et al. 2022

IEEE Trans. Intell. Transport. Syst.

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This paper offers a complete and verified model of DC trolleybus grids and examines the effect of the common modelling assumptions made in literature by using simulations, as well as bus and substation measurements from the grid of Arnhem, the Netherlands. An equivalent model for the overhead line impedance is offered taking into account the single line impedance, the supply and return lines, and the parallel connections between them. A case study shows that the feeder cables from the substations to the sections can be ignored, but only for certain substation power and feeder-line length ranges. On the other hand, the often-neglected regenerative braking, bus auxiliaries load, bilateral connections, and the exact nominal substation voltage are found to be crucial for the correct modelling of a trolleybus grid.

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Section: A Modelling Of Trolleygrids In Literaturementioning

confidence: 99%

A Complete DC Trolleybus Grid Model With Bilateral Connections, Feeder Cables, and Bus Auxiliaries

Diab

Saffirio

Mouli

et al. 2022

IEEE Trans. Intell. Transport. Syst.

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show abstract

“…Ignored in works such as [15,16,23,52,[55][56][57][58][59][60], included in works such as [49,50] If ignored, errors up to 55% in substation energy calculations…”

Section: Bus Auxiliaries Powermentioning

confidence: 99%

“…Ideally, implied that it is modelled but it is not correct to include it while simultaneously ignoring the auxiliaries demand such as in [15,16,23,52,[55][56][57][58][59][60] If ignored, errors as high as 34% in the substation power calculations…”

Section: Bus Regenerative Brakingmentioning

confidence: 99%

“…Trolleybuses are destined to (re)become a key player, after decades of expansion and contraction that saw many of their networks going out of commission [8,9]. Their electrical grids are becoming increasingly more sophisticated with the inclusion of smart grid technologies [10], renewable energy sources (RES) [11][12][13][14][15][16][17][18][19][20], on-board and/or off-board storage [21][22][23][24][25], electric-vehicle (EV) chargers [15,[26][27][28], and In-Motion-Charging (IMC) buses [8,29,30].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Review of the Key Technical and Non-Technical Challenges for Sustainable Transportation Electrification: A Case for Urban Catenary Buses

Diab

Mouli

Bauer

2022

2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC)

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The transport sector has been increasing rather than decreasing its CO2 emissions, and its sustainable electrification faces a number of technical and non-technical challenges. This paper investigates these challenges, namely those of the grid load demand modelling, renewables integration, the present infrastructure limitations, and the policy/non-technical challenges. In synthesis, the suggested vision for the future sustainable urban bus network is presented as a catenary grid running In-Motion-Charging trolleybuses, with integrated PV, EV chargers, and stationary storage systems. The future grid must involve external players such as the DSO/TSO and research/academic institutions, with a dedicated coordination body, from pre-tendering all the way to daily operations.

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“…The consensusbased solutions are also becoming more sophisticated, and in [7], Li et al proposed a distributed double-consensus approach to facilitate the cooperative energy management of multiple WEs, thereby introducing the concept of WEs. Recently, distributed solutions have evolved based on specific application needs, such as distributed Newtonian descent [8][9][10], and distributed methods based on neurodynamics [11,12].…”

Section: Introductionmentioning

confidence: 99%

Distributed Finite-Time Cooperative Economic Dispatch Strategy for Smart Grid under DOS Attack

et al. 2023

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This paper proposes an energy management strategy that can resist DOS attacks for solving the Economic Dispatch Problem (EDP) of the smart grid. We use the concept of energy agent, which acts as a hub for the smart grid, and each EA is an integrated energy unit that converts, stores, and utilizes its local energy resources. This approach takes into account the coupling relationship between energy agents (EA) and utilizes the Lyapunov function technique to achieve finite-time solutions for optimization problems. We incorporate strategies to resist DOS attacks when analyzing finite-time convergence using the Lyapunov technique. Based on this, a finite convergence time related to DOS attack time is derived. The integral sliding mode control strategy is adopted and the Lyapunov method is used to analyze it, so that the algorithm can resist DOS attacks and resist external disturbances. Through theoretical analysis, it is shown that the strategy is capable of converging to the global optimal solution in finite time even if it is attacked by DOS. We conducted case studies of six-EA and ten-EA systems to verify the effectiveness of this strategy. The proposed strategy has potential for deployment in distributed energy management systems that require resilience against DOS attacks.

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Adapted Newton-Raphson Power Flow Method for a DC Traction Network including Non-receptive Power Sources and Photovoltaic Systems

Cited by 5 publications

References 10 publications

A Complete DC Trolleybus Grid Model With Bilateral Connections, Feeder Cables, and Bus Auxiliaries

A Complete DC Trolleybus Grid Model With Bilateral Connections, Feeder Cables, and Bus Auxiliaries

A Review of the Key Technical and Non-Technical Challenges for Sustainable Transportation Electrification: A Case for Urban Catenary Buses

Distributed Finite-Time Cooperative Economic Dispatch Strategy for Smart Grid under DOS Attack

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