All Outputs (116)

Condition assessment criteria evaluation of asymmetric aged and fully aged silicone rubber insulators based on leakage current harmonics (2023)
Journal Article

The leakage current characteristic monitoring of transmission line insulators is considered a worthy technique for insulator state prediction. In this paper, the harmonic analysis of leakage current signals has been performed to analyze the composite... Read More about Condition assessment criteria evaluation of asymmetric aged and fully aged silicone rubber insulators based on leakage current harmonics.

A review and comparison of transformer and static frequency converter traction supply architectures for AC electrified railways (2023)
Journal Article

Electrification of the U.K. railway network will play a critical role in achieving targets of net-zero CO2 emissions while providing major benefits to train operators, passengers, and industry. In the drive to make electrification a more cost-effecti... Read More about A review and comparison of transformer and static frequency converter traction supply architectures for AC electrified railways.

ANSYS investigation of solar photovoltaic temperature distribution for improved efficiency (2023)
Journal Article

A computational analysis of the influence of varying solar module material properties on operating temperature is presented and related to electrical conversion efficiency through the devised method. By varying the properties of density, specific hea... Read More about ANSYS investigation of solar photovoltaic temperature distribution for improved efficiency.

Uncovering gas insulated substation transient behaviours using the equivalent cable model (2023)
Journal Article

An improved circuit theory is proposed for verification of data obtained with the ElectroMagnetic Field (EMF) theory approach for the study of Gas Insulated Substations (GIS) transient behaviours. The improved circuit theory utilises the concept of a... Read More about Uncovering gas insulated substation transient behaviours using the equivalent cable model.

Extended mixed integer quadratic programming for simultaneous distributed generation location and network reconfiguration (2023)
Journal Article

Introduction. To minimise power loss, maintain the voltage within the acceptable range, and improve power quality in power distribution networks, reconfiguration and optimal distributed generation placement are presented. Power flow analysis and adva... Read More about Extended mixed integer quadratic programming for simultaneous distributed generation location and network reconfiguration.

Tuning functions based adaptive backstepping control for uncertain strict-feedback nonlinear systems using barrier Lyapunov functions with full state constraints (2023)
Journal Article

This paper investigates the tuning functions based adaptive backstepping control for a class of uncertain strict-feedback nonlinear systems using barrier Lyapunov functions with full state constraints. The proposed adaptive control scheme is construc... Read More about Tuning functions based adaptive backstepping control for uncertain strict-feedback nonlinear systems using barrier Lyapunov functions with full state constraints.

Control of a shunt active power filter by the synchronous referential method connected with a photovoltaic solar energy (2022)
Journal Article

This paper presents a depollution technique for low voltage electrical networks. This technique is based on the control of the shunt active power filter (SAPF) at two levels by the instantaneous power method (Sychronous Reference Frame-SRF) which has... Read More about Control of a shunt active power filter by the synchronous referential method connected with a photovoltaic solar energy.

Hierarchical multi-innovation stochastic gradient identification algorithm for estimating a bilinear state-space model with moving average noise (2022)
Journal Article

This paper considers the combined parameter and state estimation problem of a bilinear state space system with moving average noise. There are product terms of state variables and control variables in bilinear systems, which brings difficulties to pa... Read More about Hierarchical multi-innovation stochastic gradient identification algorithm for estimating a bilinear state-space model with moving average noise.

Mitigation of transient ground potential rise in gas insulated substations during very fast transient overvoltage (2022)
Journal Article

This paper is focused on the assessment and mitigation of the transient response of a Gas Insulated Substation's (GIS) grounding grid to the fault due to voltage breakdown using the Partial Element Equivalent Circuit (PEEC) numerical approach. The ad... Read More about Mitigation of transient ground potential rise in gas insulated substations during very fast transient overvoltage.

A hybrid artificial neural network and wavelet packet transform approach for fault location in hybrid transmission lines (2021)
Journal Article

This paper presents a single-ended traveling-wave-based fault location (F.L.) method in a hybrid transmission line (HTL) with an overhead section combined with a cable section. For this, the software has been developed in a MATLAB programming environ... Read More about A hybrid artificial neural network and wavelet packet transform approach for fault location in hybrid transmission lines.

Adaptive sliding mode control based on fuzzy systems applied to the permanent magnet synchronous machine (2021)
Journal Article

This paper develops an adaptive sliding mode control based on fuzzy systems. In this control technique, the possibilities offered by Sugeno type fuzzy systems, in terms of their ability to approximate continuous nonlinear functions, are exploited, an... Read More about Adaptive sliding mode control based on fuzzy systems applied to the permanent magnet synchronous machine.

Identification and U-control of a state-space system with time-delay (2021)
Journal Article

This article presents a state-space model with time-delay to map the relationship between known input-output data for discrete systems. For the given input-output data, a model identification algorithm combining parameter estimation and state estimat... Read More about Identification and U-control of a state-space system with time-delay.

Voltage stability improvement in multi-terminal HVDC grids: A case study of cigré B4 HVDC test grid (2021)
Presentation / Conference Contribution

High voltage direct current (HVDC) breaker is among the essential components of HVDC grids. Currently, DC circuit breakers (DCCBs) of HVDC grids require relatively large DC reactors to limit the rate of increase of fault current. However, DC reactors... Read More about Voltage stability improvement in multi-terminal HVDC grids: A case study of cigré B4 HVDC test grid.

Voltage and frequency stability enhancement of islanded network (2021)
Presentation / Conference Contribution

Nowadays, for economic and environmental reasons, power systems usually work close to the limits of stability to make the most of existing networks. However, in such systems, sudden faults can cause severe instability between all equipment of the sys... Read More about Voltage and frequency stability enhancement of islanded network.

Calculation and validation of sector-shaped conductor cable parameters in LV distribution systems (2021)
Presentation / Conference Contribution

The exact determination of faults in underground power distribution networks requires accurate cable parameter data. Accuracy depends on how the cable parameters have been derived, which in turn is a function of the core shape. This paper schematical... Read More about Calculation and validation of sector-shaped conductor cable parameters in LV distribution systems.

State filtering and parameter estimation for two input two output systems with time delay (2021)
Journal Article

This paper focuses on presenting a new identification algorithm to estimate the parameters and state variables for two-input two-output dynamic systems with time delay based on canonical state space models. First, the related input-output equation is... Read More about State filtering and parameter estimation for two input two output systems with time delay.

Low-frequency oscillation damping control for large-scale power system with simplified virtual synchronous machine (2021)
Journal Article

This study focuses on a virtual synchronous machine (VSM) based on voltage source converters to mimic the behavior of synchronous machines (SMs) and improve the damping ratio of the power system. The VSM model is simplified according to some assumpti... Read More about Low-frequency oscillation damping control for large-scale power system with simplified virtual synchronous machine.

Indirect adaptive fuzzy control of multivariable nonlinear systems class with unknown parameters (2020)
Book Chapter

Investigating the effect of several model configurations on the transient response of gas-insulated substation during fault events using an electromagnetic field theory approach (2020)
Journal Article

Assessment of very fast transient overvoltage (VFTO) requires good knowledge of the behavior of gas-insulated substation when subjected to very high frequencies. The international standards and guidelines generically present only recommendations rega... Read More about Investigating the effect of several model configurations on the transient response of gas-insulated substation during fault events using an electromagnetic field theory approach.

Application of the direct power control strategy in a shunt active filter by exploiting the solar photovoltaic energy as a continuous source (2020)
Journal Article

In order to follow the standard recommendations of the electrical energy quality (IEEE519) on the distribution network, the active filter have responded to these recommendations, which require that the Total Harmonic Distortion (THD) must be less tha... Read More about Application of the direct power control strategy in a shunt active filter by exploiting the solar photovoltaic energy as a continuous source.