Multi-VSM based fuzzy adaptive cooperative control strategy for MVDC traction power supply system

Dai, Yuchen; Zhang, Liyan; Liu, Guofu; Yang, Yue; Chen, Qihong; Xu, Dazhuan

doi:10.1016/j.jfranklin.2021.07.051

Cited by 6 publications

(3 citation statements)

References 42 publications

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“…While control schemes [69][70][71], stability analysis [72,73], and corrosion issues [74,75] in MVDC railways have been investigated in the literature, interaction between the power electronic converters and signalling system, developing suitable protection equipment (e.g. high-current MVDC circuit breakers), and economic analysis need more attention from the researchers.…”

Section: Discussionmentioning

confidence: 99%

Medium‐voltage DC electric railway systems: A review on feeding arrangements and power converter topologies

Sharifi

Ferencz

Kamel

et al. 2022

IET Electrical Syst in Trans

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Medium‐voltage DC (MVDC) electric railway systems have several advantages over conventional DC and AC railway electrification systems. These advantages include higher capacity, possibility of connecting to power networks at lower voltage, removal of neutral sections, smaller line voltage drops, and longer distances between traction power substations. This paper reviews in depth the arrangements for MVDC railway electrification systems proposed in the technical literature and the topologies used for high‐power medium‐voltage AC‐DC converters. With reference to typical requirements of a MVDC railway electrification system, the pros and cons of the topologies are critically analysed. Moreover, this paper reviews the DC‐DC power converter topologies for on‐board power electronic traction transformers, required to interface the MVDC power supply with the traction motors. Finally, the review highlights the existing challenges of MVDC electric railway systems and the potential areas of future research.

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Section: Discussionmentioning

confidence: 99%

Medium‐voltage DC electric railway systems: A review on feeding arrangements and power converter topologies

Sharifi

Ferencz

Kamel

et al. 2022

IET Electrical Syst in Trans

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“…Therefore, the various analysis results at this stage can only be used as the reference for qualitative analysis, and there is a big gap between the accurate calculation of the distribution and influence of each parameter. As a result of their work, Dai et al (2021) have developed the discrete distribution model, given the software program based on one car and one section, and conducted simulation analyses. They have also calculated the effect of subway stray current using finite element method, which is the basis for determining the protection range of stray current and quantifying the influence degree of subway stray current on surrounding buried metal structures.…”

Section: Related Workmentioning

confidence: 99%

Research on fault location algorithm of TPSS based on PSOA

Jia¹

2023

PeerJ Computer Science

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It is extremely important to research traction power supply system (TPSS) protection technology in order to ensure the safe operation of urban rail transit. A TPSS includes rails, return cables, rail potential limiting devices, one-way conducting devices, drainage cabinets, ballast beds, and tunnel structural reinforcements. In urban rail transit, on the basis of the dynamic characteristics of the TPSS, a fault location algorithm based on particle swarm optimization algorithm (PSOA) is developed. An evaluation of multi-point monitoring data is proposed based on fuzzy processing of the average value of polarization potential forward deviation and multi-attribute decision-making. Monitoring points and standard comparison threshold values are determined by the distribution law of stray currents. In conjunction with the actual project, the model is trained using field measured data. Based on the results, TPSSOA is able to achieve optimal discharge current control, reduce network losses and improve power quality. Moreover, the reconstruction results demonstrate the high usability of the proposed method, which will provide guidance to design the TPSS in the future.

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“…Every activity process performed by the company always leads to additional costs and time, which are then ultimately charged to the customer. The Value Stream Mapping technique is used to actualize the lean process, by mapping and analyzing activities that add value and do not add value, as well as the steps in the information flow and process [8]. A highly competitive company will only perform the process activities that accurately add value to its customers.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the supply chain performance measurement system using the SCOR 12.0 and the value stream mapping method approach towards sustainability strategy (case study: power generation company in Indonesia)

Khair

Rini

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Indonesia’s electrical energy potential is very significant in supporting the manufacturing and service industries. The efforts of state power companies to manage their supply chain systems require a sustainable strategy to increase end-customer satisfaction in global competition. One strategy in achieving sustainable competence can be done through measuring and managing supply chain performance using the SCOR Method and Value Stream Mapping (VSM). The implementation of these two methods will be able to integrate every process and decision making in increasing productivity, especially in the company’s supply chain activities. Measurements result of the supply chain performance on XYZ Berau Company from 2019 to 2021 by implementing the SCOR 12.0 and the value stream mapping (VSM) method showed an increase, where the realization of supply chain performance in 2021 was 91.42 with a good category. However, there is still a gap in the KPI value of 8.58, where the highest Gap value is in KPI P-3 material fulfillment duration. For 2021, the Gap Value for KPI P-3 material fulfillment duration is 4.17 or 48.60% of the total existing gap. The application of the VSM method shows that for KPI P-3 material fulfillment duration, the value-added ratio current state is 63.57% with a value-added activity of 44.5 days, compared to the total process cycle time of 70 days. Research recommendations have brought improvement, resulting in the value-added ratio future state increased by 98.89%, with value-added activity for 44.5 days, from the total process cycle time of 45 days. So, the 45 days target for KPI P-3 material fulfillment duration can be achieved.

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Multi-VSM based fuzzy adaptive cooperative control strategy for MVDC traction power supply system

Cited by 6 publications

References 42 publications

Medium‐voltage DC electric railway systems: A review on feeding arrangements and power converter topologies

Medium‐voltage DC electric railway systems: A review on feeding arrangements and power converter topologies

Research on fault location algorithm of TPSS based on PSOA

Analysis of the supply chain performance measurement system using the SCOR 12.0 and the value stream mapping method approach towards sustainability strategy (case study: power generation company in Indonesia)

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