This article proposes a localized protection scheme for dc microgrids with radial configuration under the impact of constant power loads (CPLs) to determine location faults accurately. The proposed fault is primarily designed CPLs in microgrids. First, local relay CPL based on transient behavior current and voltage main distribution line. Then, estimation resistance formulated sharing system improve accuracy system. To realize robust considering variation resistance, procedure employed...

With the increasing number of DC microgrids, microgrid clusters are emerging as a cost-effective solution. Therefore, due to possible long distances between once fault occurs and is cleared, it should be located. Especially, locating high impedance faults (HIFs) challenging. communication-free methods, implementation costs can reduced, noise delay communication eliminated. In this paper, novel localized location method using support vector machines (SVMs) proposed for clusters. The purpose...

Nowadays, the role of cyber-physical systems (CPSs) is paramount importance in power system security since they are more vulnerable to different cyber-attacks. Detection cyber-attacks on a direct current microgrid (DC-MG) has become pivotal issue due increasing use them various electrical engineering applications, from renewable generations distribution electricity and public transportation subway electric network. In this study, novel strategy was provided diagnose possible false data...

Accurate locating of the faulty section is desired in dc microgrid due to presence power electronic converters and low-impedance cables. Some existing schemes consider sources at only one end line; thus, assume that fault current injected from line. This assumption not true case meshed microgrids, where would be supplied both ends. Moreover, communication-based methods require either a fast communication network or data synchronization. To address aforementioned issues, this article proposes...

To enhance renewable energy (RE) generation and maintain power balance, storage systems are of utmost importance. This research introduces a cutting-edge Power-to-Hydrogen (PtH) framework that harnesses hydrogen as clean versatile medium. The primary focus this study lies in optimizing flow within microgrid (μG) equipped with RE systems, considering various factors, such generation, demand, battery charge cycles, operational costs. achieve the optimal balance between consumption,...

The rapid advancement in technology and rise energy consumption have motivated research addressing Demand-Side Management (DSM). In this research, a novel design for Home Energy (HEM) is proposed that seamlessly integrates Battery Storage Systems (BESSs), Photovoltaic (PV) installations, Electric Vehicles (EVs). Leveraging Mixed-Integer Linear Programming (MILP) approach, the system aims to minimize electricity costs. optimization model takes into account Real-Time Pricing (RTP) tariffs,...

Extreme weather events lead to electrical network failures, damages, and long-lasting blackouts. Therefore, enhancement of the resiliency systems during emergency situations is essential. By using concept standby redundancy, this paper proposes two different energy for increasing load a random blackout. The main contribution techno-economic environmental comparison resilient systems. first system utilizes typical traditional generator (TG) as component providing electricity blackouts second...

The high penetration of renewable energy resources (RERs) increases the fault current level direct (DC) microgrids and causes bidirectional flow for current. Therefore, it may cause a miscoordination between fuses or other protection devices. traditional coordination methods are based on shifting operation curve devices below characteristic during temporary faults to save fuses. However, in case low variations system topology impedance faults, these can be used Also, RERs, due short circuit...

DC faults can create serious damages if not detected and isolated in a short time. This paper proposes fault detection technique for to enhance the protection of microgrid clusters. To detect such accurately quickly, scheme using empirical mode decomposition Hilbert transform is proposed. Due strict time limits interruption caused by fast high-rising currents systems, clusters' remains challenging task. Furthermore, high impedance (HIFs) systems cause small change current, which damage power...

A new DC fault current limiter (FCL)-based circuit breaker (CB) for microgrid (MG) clusters is proposed in this paper. The analytical expressions of the a bidirectional interlink DC/DC converter interconnection line two nearby MGs are analyzed detail. Meanwhile, clearing solution (based on using FCL series with breaker) proposed. This structure offers low complexity, cost, and power losses. To assess performance method, time-domain simulation studies carried out test MG cluster...

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Globally, the dual challenges of power shortages and waste management underscore critical need for innovative sustainable energy solutions. Addressing these issues is essential achieving environmental sustainability, economic development, social well-being. This paper proposes an integrated life cycle sustainability assessment (LCSA) waste-to-electricity (WtE) technologies future mix in Western Lombok, Indonesia which strongly faces shortage challenges. The proposed LCSA assesses three WtE...

The main objective of this paper is to design a robust multi-objective H2/H∞ delayed feedback controller for load frequency control multi-area interconnected power system by taking into account all theoretical and practical constraints. To achieve more precise modelling analysis, the limitation valve position, governor, transmission delay are considered guarantee LFC system’s stability in applications. nonlinear approximated Takagi–Sugeno fuzzy model. Then, parallel distributed compensation...

Power systems are usually subjected to some changes in connections during operation, which leads varied short-circuit levels different parts of them and Directional Overcurrent Relays (DOCRs) may be miscoordination by changing short circuit levels. Therefore, all network topologies should considered for coordination among overcurrent relays a power system. Reduction operating time is highly important protection This paper uses the with time-current-voltage curve respect topologies. improves...

This paper presents a reliable and fast index to detect the instant of arc extinction for adaptive single-pole automatic reclosing (ASPAR). The proposed method is simple technique ASPAR on shunt compensated transmission lines using Hilbert–Huang Transform (HHT). HHT combination empirical mode decomposition (EMD) Hilbert transform (HT). first intrinsic function (IMF1) decomposed by EMD, which contains high frequencies faulty phase voltage, was used calculate index. HT calculates IMF spectrum...

This article presents a fault detection scheme based on comb filter and second derivative of voltage for DC Aircrafts.The proposed method is also without any communication link in methodology or implementation the system.The proved to work during different resistances from low high within an appropriate accuracy.This eliminates require link, moreover, it distinguishes impedance faults noises.The location tested by real-time setups, effectiveness validated.

Due to development of DC loads and higher efficiency systems, Microgrids have become one the superior power system schemes in recent years. One major challenges on is protection them, it still a unsolved problem related developing challenges, such as, an suitable scheme, lack adequate standard Microgrid protection. considerable growing interest Microgrid; this paper evaluates problems associated with schemes, that need be considered modern networks equipped Microgrid. This presents...

This paper presents a fractional order modeling and analysis method for DC-DC Boost converter in discontinuous conduction mode (DCM) by using circuit averaging method. First, an equivalent averaged model the DCM operation is proposed. Then at second stage, corresponding DC obtained model. Finally, transfer function of duty cycle to output voltage also input are derived from small signal Simulation results presented show correctness proposed These simulation indicate that has specific...