Hassan Nouri's Outputs (116)

Design, control and modelling of a novel multi-input multi-output boost converter hub (2017)
Presentation / Conference Contribution

This paper reports on the design, control and modelling of a novel Multi-Input Multi-Output Boost Converter topology. The converter hub can integrate renewable energy sources such as wind turbines, photovoltaic arrays, fuel cells, etc. for provision... Read More about Design, control and modelling of a novel multi-input multi-output boost converter hub.

Mathematical model of electromagnetic field with skin-effect in closed electrical contacts (2017)
Journal Article

The mathematical model describing electromagnetic field in closed electrical contacts is elaborated. It takes into account a non-uniformity of the current density on the contact spot which can be explained by three factors: 1) physical phenomena of t... Read More about Mathematical model of electromagnetic field with skin-effect in closed electrical contacts.

A novel observer algorithm of voltages across capacitors based on the higher sliding mode control: Application to multi-cells converter (2017)
Journal Article

In this paper, advanced automatic sliding mode observers are applied to multi-cells converter. The technique facilitates the generation of the voltages image across capacitors of the
converter simply by measuring the current. Also, the technique pos... Read More about A novel observer algorithm of voltages across capacitors based on the higher sliding mode control: Application to multi-cells converter.

New methodology for the prediction of motor starting effect on bus voltages of interconnected power systems (2016)
Journal Article

A new methodology is proposed in this paper capable of predicting the impact of induction motor load starting on the bus voltages of an interconnected power system. The profile of the voltage sag is predicted for each bus, which is used to improve t... Read More about New methodology for the prediction of motor starting effect on bus voltages of interconnected power systems.

Comparative study of arc-to-glow transition efficiency when use multilayer condensed materials in electric contacts (2016)
Journal Article

The paper presents and discusses results of the study of arc to glow transformation at breaking of DC inductive load of a low power (less than 10 J) and low voltage (about 250 V). The ratio in duration of arcing and glowing is investigated in depende... Read More about Comparative study of arc-to-glow transition efficiency when use multilayer condensed materials in electric contacts.

A novel multi-inputs-single-output DC transformer topology (2016)
Presentation / Conference Contribution

In this paper a novel Multi- Input-Single-Output (MISO) Boost Converter topology for renewable energy systems is proposed and presented. This pro- posed topology will be used to obtain different output voltage levels from several power sources, s... Read More about A novel multi-inputs-single-output DC transformer topology.

Analytical solution of two-phase spherical Stefan problem by heat polynomials and integral error functions (2016)
Presentation / Conference Contribution

© 2016 Author(s). On the base of the Holm model, we represent two phase spherical Stefan problem and its analytical solution, which can serve as a mathematical model for diverse thermo-physical phenomena in electrical contacts. Suggested solution is... Read More about Analytical solution of two-phase spherical Stefan problem by heat polynomials and integral error functions.

Mathematical model of the arc erosion in bimetallic electrical contacts (2016)
Presentation / Conference Contribution

The mathematical model describing the nonstationary temperature field in a bimetallic contact consisting of a basic material and a covering is presented. It is based on the axially symmetric heat equation with the boundary conditions including an arc... Read More about Mathematical model of the arc erosion in bimetallic electrical contacts.

Is it possible to control an arc to glow transition for practical use in DC low voltage electrical installations? (2016)
Presentation / Conference Contribution

The paper presents and discusses investigated results of the study of arc to glow transformation at breaking of DC inductive load of a low power (less than 10J) and low voltage (about 250V).The ratio in duration of arcing and glowing is investigated... Read More about Is it possible to control an arc to glow transition for practical use in DC low voltage electrical installations?.

Time-based fault location method for LVdistributionsystems (2016)
Journal Article

© 2015, Springer-Verlag Berlin Heidelberg. Due to the utilization of fundamental frequency, current impedance-based fault location methods are able to locate only permanent and linear faults. The duration of the arc in low and medium voltage systems... Read More about Time-based fault location method for LVdistributionsystems.

Phase shift of the current under a single-phase short-circuit in the stator winding of a turbogenerator with double winding per phase (2015)
Journal Article

© 2015, Springer-Verlag Berlin Heidelberg. An equivalent model of a faulty turbogenerator under a single-phase short-circuit in the stator winding is presented. The model is based on modified voltage–current equations for the positive-sequence compon... Read More about Phase shift of the current under a single-phase short-circuit in the stator winding of a turbogenerator with double winding per phase.

Component model effect on fast-front overvoltages in gas insulated substations (2015)
Presentation / Conference Contribution

The proper modelling of transmission line towers
and conductors plays an essential part in the travelling-wave analysis of fast front overvoltages due to lightning surges in overhead power lines connected to Gas Insulated Substations.
This paper... Read More about Component model effect on fast-front overvoltages in gas insulated substations.

Restructuration of distribution power system using Genetics Algorithms (2015)
Presentation / Conference Contribution

This paper uses Genetic Algorithms (GAs) to solve the optimal reconfiguration in radial distribution systems for power loss reduction that determine the optimal switches. The GA is a relatively powerful intelligence evolution method for solving optim... Read More about Restructuration of distribution power system using Genetics Algorithms.

Investigation into transient SFO, FFO, VFTO overvoltage characteristics for typical gas insulated substations (2015)
Presentation / Conference Contribution

Overvoltage characteristics of typical single bus, double bus and one and a half bus GIS configurations under transient SFO, FFO and VFTO conditions are studied. The transient conditions are simulated through load rejections, lightning and the openi... Read More about Investigation into transient SFO, FFO, VFTO overvoltage characteristics for typical gas insulated substations.

Comparison of ATP simulation and micro‐processor based fault location using DFT (2015)
Journal Article

This paper evaluates the results of a microprocessor based fault locator employed on a laboratory power system model with those obtained within EMTP/ATP simulations. The Discrete Fourier Transform concept is used to extract the fundamental frequency... Read More about Comparison of ATP simulation and micro‐processor based fault location using DFT.

A fast fault classification technique for power systems (2014)
Journal Article

This paper proposes a fast fault classification technique using three phase current signals for power systems. Digital Fourier Transform, the ‘Least Square’ method or the Kalman Filtering technique are used to extract fundamental frequency components... Read More about A fast fault classification technique for power systems.

Sliding mode control with self-turning law for uncertain nonlinear systems with time-delay and external disturbances (2014)
Journal Article

This study proposes a novel sliding mode control with self-turning law for nonlinear systems with time-delay and external disturbances possessing uncertain parameters. The adjustable control gain and a bipolar sigmoid function are online tuned to for... Read More about Sliding mode control with self-turning law for uncertain nonlinear systems with time-delay and external disturbances.

Robust controller design based LMI techniques (2014)
Book Chapter

U-shaped energy loss curves utilization for distributed generation optimization in distribution networks (2013)
Journal Article

We propose novel techniques to find the optimal location, size, and power factor of distributed generation (DG) to achieve the maximum loss reduction for distribution networks. Determining the optimal DG location and size is achieved simultaneously u... Read More about U-shaped energy loss curves utilization for distributed generation optimization in distribution networks.

Comparison between suppressing approaches of very fast transients in gas-insulated substations (GIS) (2013)
Journal Article

In this paper, first transient waves in the gas-insulated substation (GIS) are analyzed and methods for suppression of very fast transients (VFTs) in GISs are introduced. For suppressing VFTs, four methods are presented, including suppression by term... Read More about Comparison between suppressing approaches of very fast transients in gas-insulated substations (GIS).