In the article an experimental power system consisting of Russian equipment, as well 220 kV line distance protection, are simulated in RTDS Simulator. The settings were calculated and polygonal characteristics protection constructed. A sequential installation wind turbines into various nodes was carried out correct operation verified. As a result study, impact on when they connected between sit...

With the prevalence of renewable energy sources such as wind power in system, analyzing fault characteristics systems composed DFIGs is becoming increasingly important. Therefore, this article analyzes, at first theoretically, a doubly fed induction generator (DFIG) during periods. It was found that current DFIG exhibited frequency offset phenomenon, which affected by depth voltage dips and can...

A single-end based fault location method is proposed for VSC (Voltage Sourced Converter) HVDC (High Voltage Direct Current) transmission systems. With the method, there no need communication system to collect data from different locations and checking synchronization avoided. The derived relationship between aerial ground voltage components along DC system. Bergeron model equations are used cal...

Right-half-plain (RHP) zeros can significantly deteriorate a control system's dynamic performances as it exhibits non-minimum-phase behaviors. In this paper, we investigate the occurrence mechanism of RHP in weak-grid-tied VSCs well provide guidance for minimizing their effects. A reduced-order multi-input multi-output (MIMO) transfer function VSC is firstly obtained. Then, single-input single-...

In this paper, utilising the non-equilibrium Green’s function (NEGF) formalism within new device simulator NESS (Nano-Electronic Software Simulator) developed at University of Glasgow’s Device Modelling Group, we present quantum mechanical simulations current flow in double-barrier III-V GaAs-AlGaAs nanowire resonant tunneling diodes (RTDs). is a fast and modular Technology Computer Aided Desig...

This article proposes a novel algorithm employing space vector ellipse (SVE) in complex plane to classify and visualize power quality disturbance-events (PQDEs). In the proposed method, at first, time-domain signal reference signal, which are separated by 90°, mapped 2D coordinates. Thus, tip of resultant rotating traces an ellipse, from three parameters, namely, semi-major axis, semi-minor axi...

The performances of four different designs for a pilot-scale spray dryer have been evaluated and compared based on experimentally measured particle residence time distributions (RTD), recovery rates physical properties spray-dried fresh skim milk. RTDs using dye pulse injection method, the measurements fitted to models continuous stirred-tank reactors in series (CSTR-TIS) quantitative performan...

This paper presents a new fault detection algorithm based on the Fast Discrete Stockwell Transform. The can improve functionality of existing distance protection and resolve shortcomings identified during process in case occurrence systems with high penetration power electronics-based generators. Reported results operation commercial relays four different vendors show that all experience diffic...