Paper

A Survey of Reliability Assessment Techniques for Modern Distribution Networks

Reliability assessment tools are of crucial importance for planning and modernisation of distribution power systems. In recent years there has been an increased deployment of renewable energy. distributed generation. energy storage. electric vehicle. protection device automation and demand response schemes in the distribution networks. All these technologies contribute in their …

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A new global maximum power point tracking technique for solar photovoltaic (PV) system under partial shading conditions (PSC)

Hardware result for 4S-2P- pattern (a) and (b) Similar to simulation. FPA results are verified via hardware prototype under similar operating condition for the following patterns (a). (b). (c) and (d). Experimental results for pattern (a) and (b) with FPA. PSO and P&amp.O methods are shown in Fig. 16 and …

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Faults diagnosis of wind energy conversion chain based on doubly fed induction generator by principal components analysis method

PCA method based on residues analysis has been established and applied on wind energy conversion system based on doubly fed induction generator diagnosis. An accurate analytical model of the machine has been proposed and simulated to perform the healthy and faulted data for PCA approach need. Several representations of the …

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Simultaneous allocation of electric vehicles’ parking lots and distributed renewable resources in smart power distribution networks

Electric vehicles (EVs) and distributed renewable resources (DRRs) are introduced to achieve three of the most pivotal objectives of this century: using environmentally-friendly energy resources. reliable supply of the load demand. and sustainable development of power systems. To achieve the aforementioned goals. simultaneous utilization of DRRs and EVs should be …

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Analysis. Design. and Performance Evaluation of Asymmetrical Half-Bridge Flyback Converter for Universal-Line-Voltage-Range Applications

In this paper. a detailed analysis and design procedure of the AHB flyback converter for the universal line-voltage range is provided. The analysis of operation is illustrated by simulation waveforms obtained in Simplis. It is shown that the primaryside switches operate with zero-voltage switching (ZVS). whereas. the secondary-side rectifier operates …

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Influence of Deposition Conditions on Silicon Nanoclusters in Silicon Nitride Films Grown by Laser-Assisted CVD Method

Crystalline-silicon-nanocluster-embedded silicon nitride films were deposited at low temperature using a laser-assisted CVD (LACVD) system with various reactant gas flow rates and assisting laser power densities. The photoluminescence (PL) performances of the resultant films were studied. showing a systematic spectra blue shift. and the enhancement of PL intensity with the …

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Smartphone Security Challenges

Smartphone security is challenging and complicated. However. there are some easy ways to improve smartphone security: • Increase security awareness. Like a desktop PC or a laptop. a smartphone can be hacked. infected. or phished. Smartphone users should be aware of potential threats and attacks when installing software19 or authorizing …

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Efficient authentication scheme for data aggregation in smart grid with fault tolerance and fault diagnosis

Authentication schemes relying on per-packet signature and per-signature verification introduce heavy cost for computation and communication. Due to its constraint resources. smart grid’s authentication requirement cannot be satisfied by this scheme. Most importantly. it is a must to underscore smart grid’s demand for high availability. In this paper. we present …

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A New Digital Distance Relaying Scheme for Series-Compensated Double-Circuit Line During Open Conductor and Ground Fault

A new digital distance relaying scheme presented in this paper provides adequate protection to series-compensated double-circuit lines during a simultaneous open conductor and ground fault. The proposed scheme is based on the derivation of the compensated values of impedance using the symmetrical components theory. It measures the correct value of …

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