This paper presents a closed-loop space vector modulation (SVM)-based sliding mode controller (SMC) for three-level grid-connected neutral point clamped (3L-NPC) inverter. The nonlinear SMC based on Gao's reaching law has been designed to control the grid current and inject desired amount of active reactive power into network. Due using single dc source at NPC inverter bus, voltage is controlled through redundant switching states instantaneous feedback integrated SVM technique. Meanwhile,...

The residential energy management system is an essential factor in the smart grid environment, which allows implementation of demand response program among consumers to manage their power usage aiming reduce electricity expenses. In this paper, model proposed by considering both generation and consumption parts. Mathematical models for grid, renewable resources, batteries, electric vehicles are presented, as well different type thermal electrical appliances such air conditioning, water...

With the emergence of smart grid, which presents next generation electrical power systems, residents have opportunities to manage their home energy usage reduce expenditure. This paper a mixed integer linear programming model optimize production and consumption systems in with integration renewable resources, battery storage gridable vehicles. Numerous case studies are presented by varying significant factors through design experiments Taguchi method. After that, heuristic technique is...

In this paper, a fixed-frequency pulsewidth modulation (PWM) based on sliding-mode current controller is designed and applied to utility interface three-phase/wire/level neutral-point-clamped inverter. The proposed design methodology of the control constant switching frequency operation Gao's reaching law that allows chattering compensation. aim inject controlled active power from renewable energy sources into grid while controlling factor minimizing supply harmonics. Moreover, dc-link...

Power electronic converters are used for integrating renewable energy sources such as wind and photovoltaic into the grid. This integration gives rise to many challenges in power systems, especially regarding quality. Indeed, integrated systems generate a non-linear current full of harmonics, which degrades Active filters usually compensate these harmonics at point common coupling. In control active filters, need be extracted from current. this paper, matrix pencil method―a model-based...

In islanded microgrid, the conventional voltage and frequency droop control is commonly used to share real reactive power among parallel inverters in autonomous fashion without communication. However, this done at expense of changing system voltage. To enhance sharing restore their nominal values, a secondary loop added where certain cases communication link imposed between centralized controller each associated control. avoid using complicated multiloop feedbacks, paper proposes new angle...

Harmonics are found to have deleterious effects on power system equipment including transformers, capacitor banks, rotating machines, etc. However, the distributed generation interfacing converters (DICs) able improve quality and efficiency in case of adding a flexible control strategy. This paper describes voltage distortion generated by nonlinear loads proposes new harmonic droop reduce at point common coupling (PCC) share between parallel islanded inverters controlled classical frequency...

This paper outlines the advantages and disadvantages of most commonly generator used in Wind Energy Conversion Systems (WECS). The state art on wind turbine technology is established by comparison each type. Doubly Fed Induction Generators (DFIG), Squirrel Cage generators (SCIG) are two types induction for geared operation WECS variable speeds fixed speeds, while Permanent Magnet Synchronous (PMSG) can operate gearless. Due to higher demand power from energy, off shore installations becoming...

The lead-acid battery, although known since strong a long time, are today even studied in an intensive way because of their economic interest bound to use the automotive and renewable energies sectors. In this paper, principle battery is presented. A simple, fast, effective equivalent circuit model structure for batteries was implemented. identification parameters proposed treated. This validated by simulation using Matlab/Simulink Software.

Current distortion degrades power quality and affects system performance, especially for sensitive loads that require pure sinusoidal waves. Owing to its excellent dynamic response, a well-designed active filter (APF) can achieve total harmonic (THD) within the acceptable limits defined by IEEE 3002 standards through compensating distortions. The APF consists of two main modules: reference signal extraction module modulation module. This paper adapts matrix pencil method, well-known...

Nowadays, the three-level neutral point clamped (3L-NPC) inverter has become more attractive among multilevel inverters topologies, especially in transformerless grid connected photovoltaic systems. Due to unbalance between two DC load-side capacitor voltages, development and improvement of such topology were important topics recent studies. New structures derived focusing on better distribution losses, increasing efficiency, decreasing switching devices losses conduction losses. For this...

In this paper, a Fuel Cell (FC) Maximum Power Point Tracking (MPPT) with fuel flow optimization is developed. The aim of study to extract the maximum power from FC at different rates and protect over-current voltage collapses across terminals. system composed tracker buck converter able change impedance therefore power. order illustrate our approach, simulation results show behavior verify concept tracking.

This paper presents modeling, design and analysis of a bidirectional half-bridge DC/DC converter suitable for power electronic interface between the main energy storage system electric traction drive in hybrid vehicles. A composed battery unit an ultracapacitor pack is considered. parallel dc-linked multi-input with cell topology chosen to link battery/ultracapacitor dc-link. The focuses on modeling proposed both dynamic steady state analysis. Averaging linearization techniques are applied...

In this paper, an electrical equivalent circuit for a proton exchange membrane (PEM) electrolyzer is used to develop Simulink block diagram. The I-V characteristic single PEM cell modeled under steady-state and elaborated using circuit. Hydrogen production rates characteristics are developed with respect the input current power. It clearly seen that electrolytic hydrogen rate increases in linear fashion variation of power non-linear (i.e. logarithmic). These simulated Simulink/Matlab model...

Recently, fault detection has played a crucial role in ensuring the safety and reliability of inverter operation. Switch failures are primarily classified into Open-Circuit (OC) short-circuit faults. While OC have limited negative impacts, prolonged system operation under such conditions may lead to further malfunctions. This paper demonstrates effectiveness employing Artificial Intelligence (AI) approaches for detecting single faults Packed E-Cell (PEC) inverter. Two promising strategies...

Early and accurate fault detection diagnosis for renewable energy systems can increase their safety ensure the continuity of service. In this paper, authors are interested in presenting different methods industrial systems. Then, an overview wind turbine power generator, PV cell PEM fuel is presented.

Energy storage plays an important role in renewable energy systems, for moments where the source is absent. The Fuel Cell (FC) one of these technologies. In this paper, power optimization methods are applied on cells using Maximum Power Point Tracking (MPPT) systems. Perturb and Observe (P&O) Incremental Conductance (IC) simulated compared order to identify which better FC system application.

This paper presents a study of different converter topologies used in the design hybrid electric vehicle drive trains with emphasis on power electronic interface for battery/ultracapacitor energy storage pack. Each proposed literature has its own advantages and disadvantages, thus choosing an appropriate topology depends greatly specified application, operation requirements. Several aspects have to be considered obtain reliable comparison among topologies.

Three-level neutral point clamped (NPC) inverter topologies are becoming more and the interest of studies, especially in grid connected systems, due to their advantages compared other multilevel inverters. Synchronization with an AC source remains a challenge ring current injection grid. In order enhance performance immunity such inverters, sliding mode controller based on Gao's reaching law has been designed this paper, then applied three-wire three-level NPC have unity power factor system....

This paper discusses the design and topology of indirect matrix converter. The double space vector modulation technique (DSVPWM) is applied on system a unity power factor was accomplished along with desired sinusoidal input output waveforms. whole simulated using Matlab/Simulink, results prove to comply existing quality standards.