Distributed Optimal Power and Voltage Management in DC Microgrids: Applications to Dual-Source Trolleybus Systems

Sindi, Eyad; Wang, Le Yi; Polis, Michael P.; Yin, George; Ding, Lei

doi:10.1109/tte.2018.2844367

Cited by 17 publications

(4 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, some works consider the parallel lines ([5], [7], [26]) while others, such as [4], [8], ignore them. Feeder cables are also ignored, except in few works ( [18], [20], [26]).…”

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.

View full text Add to dashboard Cite

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.

show abstract

“…For example, some works consider the parallel lines ([5], [7], [26]) while others, such as [4], [8], ignore them. Feeder cables are also ignored, except in few works ( [18], [20], [26]).…”

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.

View full text Add to dashboard Cite

show abstract

“…When a trolleybus brakes, the available regenerative braking power can be as high as 200 kW. If the braking trolleybus has an on-board storage system (also known as a dual-source 439 978-1-6654-9681-0/22/$31.00 ©2022 IEEE trolleybus [22,24,32,33]), it can harvest this braking energy to be later used while accelerating. In the absence of on-board storage, this power can be fed to buses on the same section, on a connected section under the same substation busbar (Bus1 and Bus2 in figure 1), or wasted in on-board braking resistors [22,24,31].…”

Section: Comparison Of Electrical Bus Types a The Trolleybus And Its ...mentioning

confidence: 99%

“…Only mentioned in works such as [32,54,61] If ignored in zones of high power demand and/or long feeder cable lengths, errors above 15% in the power calculations and 50V for the minimum line voltage are expected…”

Section: Section Feeder Cablementioning

confidence: 99%

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)

View full text Add to dashboard Cite

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.

show abstract

“…Because generators are not fully capable of powering these double articulated trolleybuses. Besides, regenerative braking energy (recuperation energy) cannot be used efficiently due to a lack of a proper energy storage system [29]- [31]. Therefore, it became necessary to convert these generators into battery blocks.…”

Section: B Problem Statementmentioning

confidence: 99%

Electrification in Urban Transport: A Case Study with Real-time Data

Dikmen

Ekici

Karadağ

et al. 2021

Balkan Journal of Electrical and Computer Engineering

View full text Add to dashboard Cite

Electrification in urban transportation is becoming more popular, it is also becoming a necessity due to climate changes and sustainability issues. Trolleybuses are presenting an alternative for this purpose. Although their technology is a mature technology that has been used for decades, there are still some technical problems that need to be overcome. In this study, a technical method is presented for the conversion of trolleybus auxiliary power units. The electrification conversion demanded by the metropolitan public transportation company operating 22 trolleybuses in the province of Malatya is the replacement of diesel generators, used as auxiliary power units, with battery units capable of meeting the local operational requirements. For this purpose, a method is proposed and followed. At the first step of the implementation, real-time data has gathered from a trolleybus and this one round tour data is used to run on a scaled experiment. The setup has prepared as hardware and software to simulate the consumption on a scaled battery pack. Experimental results were interpreted with capacity and voltage restrictions resulting in the determination of battery chemistry and casing to be used. Then optimal battery placement was defined as a container loading problem and application was made with the first fit decreasing algorithm considering mass and volume restrictions. It was found that only two packing types out of six combinations are enough to form a battery pack within the mass and volumetric limitations. It is evaluated that the method İSMAİL CAN DİKMEN, is with

show abstract

Distributed Optimal Power and Voltage Management in DC Microgrids: Applications to Dual-Source Trolleybus Systems

Cited by 17 publications

References 35 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

Electrification in Urban Transport: A Case Study with Real-time Data

Contact Info

Product

Resources

About