It is well known that series arc faults in Low Voltage DC (LVDC) distribution system occur at unintended points of discontinuity within an electrical circuit. These faults can make circuit breakers not respond timely due to low fault current. It, therefore, is needed to detect the series fault for protecting circuits from electrical fires. This paper proposes a novel scheme to detect the series...

We investigate the relative complexity of the graph isomorphism problem (GI) and problems related to the reconstruction of a graph from its vertex-deleted or edge-deleted subgraphs (in particular, deck checking (DC) and legitimate deck (LD) problems). We show that these problems are closely related for all amounts c ≥ 1 of deletion: 1. GI ≡iso VDCc, GI ≡iso EDCc, GI ≤m LVDc, and GI ≡iso LEDc. 2...

The application of Low Voltage Direct Current (LVDC) distribution systems have the potential to offer several advantages over the incumbent AC networks. LVDC systems are technically and economically viable in niche applications such as data centres and marine power systems, however they also have the potential to offer improvements in the power transfer capability of existing distribution cable...

If latter part of the electricity supply chain including the LV network and customers is becoming more active. There can (EV) and other distributed energy resources (DER) connected to the grid and the customer can actively participate to the electricity market through resources. communities which are at least partly self terms of electric energy. This suggests microgrid (μG) operation. There ha...

This paper presents a detailed and accurate small-signal analysis model for four-terminal low-voltage direct current (LVDC) distribution network with distributed secondary control strategy. To tackle the contradiction between power sharing accuracy average voltage recovery ability of source converters (VSCs), strategy is adopted, which based on consensus algorithm local voting protocol. Further...

With the rapid development of power electronics technology and its successful application, many demonstration projects medium/low-voltage DC (M-LVDC) distribution systems have been constructed. The transformer (DCT) is key equipment in M-LVDC system for interconnecting MVDC LVDC buses. In this paper, characteristics DCTs are summarized. existing topologies analyzed, relevant control strategies ...

This study communicates a single-stage, 3-?, rooftop solar photo voltaic (PV) and grid compatible tri-capacity battery charger (TBC) topology for home-based low voltage direct current nanogrid (LVDC NG). The proposed architecture performs power factor correction drawing sinusoidal currents at unity factor, single-stage rectification of 3-? voltages constant mode charging simultaneously. employe...

سیستم حمل‌ونقل ریلی از تعامل مجموعه‌ای تجهیزات و عملیات تشکیل‌ شده است که توانایی ظرفیت یک در بار مسافر را تعیین می‌کند. بدین‌منظور، محاسبة پیش‌بینی نحوة تغییرات آن مهم شناخت آن‌ کمک شایانی به ارتقای سطح بهره‌برداری شبکة روش‌های گوناگونی برای وجود دارد با توجه نوع شبکه شیوة استفاده این روش‌ها، می‌توان آنها بهره گرفت. ظرفیت، توانمندی‌های سیستم‌های اطلاعات مکانی می‌شود تحت وب، وضعیت ظرفیتی عملیات...

Low Voltage Direct Current (LVDC) distribution systems have recently been considered as an alternative approach to electrical system infrastructure they provide the additional flexibility and controllability required facilitate integration of more low carbon technologies (LCTs). However, DC protection and, specifically high accuracy fault location, recognised a key challenge facilitating post-f...

Currently, inefficient use of electricity in homes, businesses, schools, and industries requires the implementation policies, mechanisms, technological innovations rational energy. In this sense, new distribution systems, low-voltage direct current, LVDC, is presented as a solution for energy saving well efficiency end users companies’ power. The emergent systems such LVDC has encouraged develo...