Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Journal Article (7)
- Electrical Power and Energy Engineering (5)
- Z-source Inverter (4)
- درس دینامیک سیستم های قدرت (4)
- Distributed generation (DG) (3)
-
- Distribution network (3)
- Energy engineering (3)
- Fault location (3)
- Modeling, Intelligent Systems (3)
- Open Orbiter Project (3)
- Radial basis function neural network (RBFNN) (3)
- TURBINE (3)
- Artificial Intelligence Application to Power System Transient Stability (2)
- Black-box modeling (2)
- Core vector regression (2)
- CubeSat (2)
- Energy (2)
- IT (2)
- Nonlinear modeling (2)
- OpenOrbiter (2)
- PWM Technique (2)
- Perception neural network (MLPNN) (2)
- Power quality (2)
- Power system (2)
- Presentation (2)
- Proceedings (2)
- Protection coordination (2)
- Small Spacecraft (2)
- Solid oxide fuel cell (2)
- Stability (2)
- Publication Year
- Publication
-
- Almoataz Youssef Abdelaziz (13)
- Dr. Hadi Zayandehroodi (12)
- Dr. Mahdiyeh Eslami (مهدیه اسلامی) (8)
- Hesamoddin Marzooghi (6)
- Tarek Ibrahim ElShennawy (6)
-
- Omar Ellabban (5)
- Dr. Erik Dahlquist (4)
- Saad Mekhilef (4)
- Jeremy Straub (3)
- VIJAYA KRUSHNA VARMA Mr (3)
- suresh L (3)
- D. K. Chaturvedi Dr. (2)
- Emad Gameil Shehata E. G. Shehata (2)
- Innovative Research Publications IRP India (2)
- Dr. ASADOLLAH KAZEMI (1)
- Dr. Eng. Omar Hegazy (1)
- Dr. Marjan Mohammadjafari (1)
- Dr.-Ing. Nasser Hemdan (1)
- Fabricio I. Salgado MSc. (1)
- Hernando Romero Paredes Rubio (1)
- Juan B. Moreno-Cruz (1)
- Kevin L Doran (1)
- Khairy F. A. Sayed Dr (1)
- Krzysztof Gosiewski (1)
- Professor Mahmoud Moghavvemi (1)
- REKIOUA Djamila Dr (1)
- Tibin Joseph (1)
Articles 1 - 30 of 86
Full-Text Articles in Engineering
دینامیک سیستم های قدرت, Hadi Zayandehroodi
دینامیک سیستم های قدرت, Hadi Zayandehroodi
Dr. Hadi Zayandehroodi
No abstract provided.
دینامیک سیستم های قدرت- بخش چهارم, Hadi Zayandehroodi
دینامیک سیستم های قدرت- بخش چهارم, Hadi Zayandehroodi
Dr. Hadi Zayandehroodi
No abstract provided.
Performance Analysis Of Weighted Encoding With Sparse Nonlocal Regularization And Spatially Adaptive Iterative Filtering Boost Denoising: A Review, Shivam Shukla, Vijayshri Chaurasia
Performance Analysis Of Weighted Encoding With Sparse Nonlocal Regularization And Spatially Adaptive Iterative Filtering Boost Denoising: A Review, Shivam Shukla, Vijayshri Chaurasia
Innovative Research Publications IRP India
In this paper, we compare the spatially adaptive iterative filtering (SAIF) approach with Weighted Encoding with Sparse Nonlocal Regularization (WESNR) to maintain the denoising strength locally for any spatial domain method. These approaches has ability of filtering local image content iteratively using the given base filter, and the type of iteration and the iteration number are automatically optimized with respect to estimated risk (i.e., mean squared error). Experimental result shows that approx. 7% enhancement in the SNR of SAIF method as compared to the WESNR method.
Design Of An Electrical Power System For The Openorbiter Cubesat, Sofiane Chaieb, Michael Wegerson, Jeremy Straub, Ronald Marsh, David Whalen
Design Of An Electrical Power System For The Openorbiter Cubesat, Sofiane Chaieb, Michael Wegerson, Jeremy Straub, Ronald Marsh, David Whalen
Jeremy Straub
The OpenOrbiter Small Spacecraft Development Initiative aims to create an Open Prototype for Educational Nanosats (OPEN) framework (see [1]) for a complete 1-U CubeSat (10 cm x 10 cm x 10 cm, 1.33 kg spacecraft) with a total parts cost of less than $5,000 [2]. In order to supply all spacecraft subsystems with power, an electrical power system (EPS) has been implemented. The EPS generates power using multiple solar panels, stores it in batteries and regulates it to provide continuous levels of power to all of the subsystems of the spacecraft. The EPS has a crucial role in the spacecraft …
Practical Approach On Lightning And Grounding Protection System, Innovative Research Publications Irp India, Shan Jose Varghese
Practical Approach On Lightning And Grounding Protection System, Innovative Research Publications Irp India, Shan Jose Varghese
Innovative Research Publications IRP India
Lightning Protection and Grounding of Electrical and Mechanical equipment’s for the Protection of the Human Beings, Structure of the building and equipment protection, safe working of the Worker at Industry as per my latest practical knowledge in the site environment in extreme climatic condition of low lying areas of the Gulf Region in the challenging projects. All the conductor calculation, Lightning Risk Factor calculations, all the system information regarding the level of protection required for site are mentioned in this paper. Lightning, Electrical and Mechanical Equipment surge protection is the one of the major complicated protection in the World as …
Electrical Power System For An Open Hardware Cubesat, Sofiane Chaieb, Michael Wegerson, Jeremy Straub, Ronald Marsh, David Whalen
Electrical Power System For An Open Hardware Cubesat, Sofiane Chaieb, Michael Wegerson, Jeremy Straub, Ronald Marsh, David Whalen
Jeremy Straub
The OpenOrbiter program is developing a complete set of CubeSat hardware and software to facilitate the development of a 1-U CubeSat (10 cm x 10 cm x 10 cm, 1.33 kg spacecraft) with a parts cost of less than $5,000. This poster covers the electrical power system (EPS) for that spacecraft. The EPS is an assemblage of components that supplies all spacecraft subsystems with power, while performing health assessment of the battery and electrical buses. The EPS has a crucial role in the spacecraft and thus has to be developed and tested with extreme care.
The EPS generates power using …
دینامیک سیستم های قدرت - فصل دوم, Hadi Zayandehroodi
دینامیک سیستم های قدرت - فصل دوم, Hadi Zayandehroodi
Dr. Hadi Zayandehroodi
No abstract provided.
دینامیک سیستم های قدرت - فصل سوم - قسمت اول, Hadi Zayandehroodi
دینامیک سیستم های قدرت - فصل سوم - قسمت اول, Hadi Zayandehroodi
Dr. Hadi Zayandehroodi
No abstract provided.
A 12-Sector Space Vector Switching Scheme For Performance Improvement Of Matrix Converter Based Dtc Of Im Drive, Saad Mekhilef, Sina Sebtahmadi
A 12-Sector Space Vector Switching Scheme For Performance Improvement Of Matrix Converter Based Dtc Of Im Drive, Saad Mekhilef, Sina Sebtahmadi
Saad Mekhilef
No abstract provided.
Fomento A Las Ernc: Micro - Central Hidroelectrica Para Uso En Zonas Rurales, Fabricio I. Salgado Msc., David Palma, Adrian Olate
Fomento A Las Ernc: Micro - Central Hidroelectrica Para Uso En Zonas Rurales, Fabricio I. Salgado Msc., David Palma, Adrian Olate
Fabricio I. Salgado MSc.
El presente artículo se ha creado en base a estudios y cálculos sobre las energías renovables no convencionales, desarrollo y análisis de las condiciones actuales del mundo y Chile sobre el fomento y uso de las ERNC, marco teórico respecto a la energía hidráulica, destacando historia, evolución, y clasificación de los tipos de centrales hidroeléctricas, cálculos de caudales de afluentes, estudio y diseño para la construcción de un embalse, la decisión y selección de un alternador a utilizar como generador una selección y diseño de la turbina Michell – Banki a utilizar en el proyecto, el cálculo y especificación de …
Fault Locating In Large Distribution Systems By Empirical Mode Decomposition And Core Vector Regression, Benyamin Khorramdel Mr., Hesamoddin Marzooghi Mr., Haidar Samet Dr., Meisam Pourahmadi-Nakhli Mr., Mahdi Raoofat Dr.
Fault Locating In Large Distribution Systems By Empirical Mode Decomposition And Core Vector Regression, Benyamin Khorramdel Mr., Hesamoddin Marzooghi Mr., Haidar Samet Dr., Meisam Pourahmadi-Nakhli Mr., Mahdi Raoofat Dr.
Hesamoddin Marzooghi
This paper proposes an intelligent fault locating method using a new signal analysis technique called Empirical Mode Decomposition (EMD) and Core Vector Regression (CVR) for large distribution systems. The conventional fault locators are based on the measurement of post-fault line impedance suffering from the factors such as path fault impedance, system configuration and line loading, so that they have low accuracy. On the other hand, because of the vast range of resistances, the negative impact of damping factors affects the performance of travelling wave-based fault locators in large distribution systems. To overcome these problems, this paper uses a minimum measuring …
Boundary Control Of Dual-Output Boost Converter Using State-Energy Plane, Saad Mekhilef
Boundary Control Of Dual-Output Boost Converter Using State-Energy Plane, Saad Mekhilef
Saad Mekhilef
A boundary control scheme for dual-output boost converter (DBC) with enhanced performance using second-order switching surface is presented in this study. The derivation of the switching surface is performed in state-energy plane rather than the state-plane to obtain a general geometrical representation that provides a good dynamic response during start-up and sudden load changes, achieving steady state in two switching actions. To illustrate the control characteristic and performance, a detailed mathematical analysis is fully developed and compared with other control methods for the DBC. The proposed control was simulated, implemented in a digital signal processor TMS320F2812, and tested using prototype …
Fault Identification For Transmission Lines Using Wavelet Transform, Almoataz Youssef Abdelaziz
Fault Identification For Transmission Lines Using Wavelet Transform, Almoataz Youssef Abdelaziz
Almoataz Youssef Abdelaziz
This paper presents an algorithm to determine the fault type on transmission line based on wavelet transformation analysis. The algorithm is developed by analyzing the three phase currents (Ia, Ib and Ic) using Wavelet Transformation, and then start to study the faulted phase(s) at different location (each 5% of the transmission line (TL) length). Fault simulation is carried out by EMTDC/PSCAD program. Two seconds window of waveform covering pre-fault and post-fault is used. The discrete wavelet transforms (DWTs) are used for data pre-processing. Four types of mother wavelet are used for signal processing to identify the effective wavelet family that …
Performance And Stability Assessment Of Future Grid Scenarios For The Australian Nem, Hesamoddin Marzooghi Mr., David J. Hill Prof., Gregor Verbic Dr.
Performance And Stability Assessment Of Future Grid Scenarios For The Australian Nem, Hesamoddin Marzooghi Mr., David J. Hill Prof., Gregor Verbic Dr.
Hesamoddin Marzooghi
Shifting towards higher penetration of diverse renewable energy sources (RESs) in power systems is motivated mainly by reducing carbon emissions. In the long term of several decades, which we refer to in terms of the future grid (FG), balancing between supply and demand will become more challenging. Also, displacing conventional generators with RESs, especially inverter-based and intermittent RESs, could have significant effects on performance and stability of FGs. So far, FG feasibility studies have mostly considered simple balancing, but largely neglected network related issues such as line overload and stability. The main contribution of this paper is to present a …
Performance And Stability Assessment Of Future Grid Scenarios For The Australian Nem, Hesamoddin Marzooghi Mr., David J. Hill Prof., Gregor Verbic Dr.
Performance And Stability Assessment Of Future Grid Scenarios For The Australian Nem, Hesamoddin Marzooghi Mr., David J. Hill Prof., Gregor Verbic Dr.
Hesamoddin Marzooghi
Shifting towards higher penetration of diverse renewable energy sources (RESs) in power systems is motivated mainly by reducing carbon emissions. In the long term of several decades, which we refer to in terms of the future grid (FG), balancing between supply and demand will become more challenging. Also, displacing conventional generators with RESs, especially inverter-based and intermittent RESs, could have significant effects on performance and stability of FGs. So far, FG feasibility studies have mostly considered simple balancing, but largely neglected network related issues such as line overload and stability. The main contribution of this paper is to present a …
The Sun Also Rises: Prospects For Solar District Heating In The United States, Adam L. Reed, John S. Mccartney
The Sun Also Rises: Prospects For Solar District Heating In The United States, Adam L. Reed, John S. Mccartney
Kevin L Doran
Renewable thermal energy remains a largely untapped resource in the United States, despite its low costs and growing popularity in many other countries and the pressing need to rapidly deploy and scale carbon-free energy sources in order to mitigate anthropogenic climate change. In this article, an energy attorney and a civil engineer collaborate to examine the prospects in the United States for solar district heating (SDH), a thermal technology that leverages economies of scale to provide zero-carbon, round-the-clock space and water heating (on average, the two largest components of building energy demand) to neighborhoods and commercial zones at costs competitive …
A Ripple Current Minimisation Based Single Phase Pwm Inverter, Khairy F. A. Sayed Dr
A Ripple Current Minimisation Based Single Phase Pwm Inverter, Khairy F. A. Sayed Dr
Khairy F. A. Sayed Dr
This paper is aimed at improving the output voltage waveform of a single phase PWM inverter. Two approaches is proposed, the first approach is based on selected harmonic elimination (SHE) of order up to 7th harmonic, for minimising harmonic distortion and modulating amplitude of the fundamental component of the output voltage waveform. For the first time, the Levenberg–Marquardt algorithm (LMA) is used for determining the switching angles of the inverter switches. The second approach is based on ripple current minimisation using LMA. A simulation model is developed using PSIM for the inverter to verify the proposed approaches. An experimental system …
New Three-Phase Multilevel Inverter With Reduced Number Of Power Electronic Components, Saad Mekhilef
New Three-Phase Multilevel Inverter With Reduced Number Of Power Electronic Components, Saad Mekhilef
Saad Mekhilef
In this paper, a new configuration of a three-phase five-level multilevel voltage-source inverter is introduced. The proposed topology constitutes the conventional three-phase two-level bridge with three bidirectional switches. A multilevel dc link using fixed dc voltage supply and cascaded half-bridge is connected in such a way that the proposed inverter outputs the required output voltage levels. The fundamental frequency staircase modulation technique is easily used to generate the appropriate switching gate signals. For the purpose of increasing the number of voltage levels with fewer number of power electronic components, the structure of the proposed inverter is extended and different methods …
Simulation Of Z-Source Inverter Using Maximum Boost Control Pwm Technique, Suresh L
Simulation Of Z-Source Inverter Using Maximum Boost Control Pwm Technique, Suresh L
suresh L
Z – source inverters have been recently proposed as an alternative power conversion concept as they have both voltage buck and boost capabilities. These inverters use a unique impedance network, coupled between the power source and converter circuit, to provide both voltage buck and boost properties, which cannot be achieved with conventional voltage source and current source inverters. To facilitate understanding of Z – source inverter, this paper presents a detailed analysis, showing design of impedance network, implementation of Maximum Boost control (MBC) PWM technique and simulation of Z – source inverter.
Direct Power Control Of Dfigs Based Wind Energy Generation Systems Under Distorted Grid Voltage Conditions, Emad Gameil Shehata E. G. Shehata
Direct Power Control Of Dfigs Based Wind Energy Generation Systems Under Distorted Grid Voltage Conditions, Emad Gameil Shehata E. G. Shehata
Emad Gameil Shehata E. G. Shehata
This paper presents an improved direct power control (DPC) strategy of a wind turbine driven doubly fed induction generators (DFIGs) connected to distorted grid voltage conditions. A coordinate control strategy of the grid side converter (GSC) and rotor side converter (RSC) of the DFIG is designed to improve the overall scheme performance. The RSC is controlled based on a DPC principle to eliminate the electromagnetic torque and stator reactive power oscillations. The total active and reactive power oscillations are compensated by the GSC control to achieve constant active and reactive powers from the overall DFIG system. A current control scheme …
Direct Power Control Of Wind-Turbine-Driven Dfig During Transient Grid Voltage Unbalance, Emad Gameil Shehata E. G. Shehata
Direct Power Control Of Wind-Turbine-Driven Dfig During Transient Grid Voltage Unbalance, Emad Gameil Shehata E. G. Shehata
Emad Gameil Shehata E. G. Shehata
In this paper, a direct power control (DPC) of a wind-turbine-driven doubly fed induction generators (DFIGs) under unbalanced network voltage conditions is studied. Variations of the stator output active, reactive and electromagnetic powers are fully deduced in the presence of negative sequence supply voltage. The rotor side converter is controlled on the basis of DPC to eliminate the electromagnetic torque oscillations at double supply frequency under unbalanced stator supply. The rotor voltage references estimation requires only simple calculations without any integral operation. The proposed control scheme removes rotor current regulators and the decomposition processing of positive and negative sequence rotor …
At89c51 Microcontroller Based Control Model For Hybrid Assistive Limb (Knee ), Suresh L
At89c51 Microcontroller Based Control Model For Hybrid Assistive Limb (Knee ), Suresh L
suresh L
In this paper, a controlling system is implemented for a wearable walking supporting device so called as Hybrid Assistive Limb. The control circuit is implemented without considering the biological signals of the human body for the knee part, which is based on the knee joint moment from the human body model. The control and a driving circuit s are implemented to assistive the knee as for the requir ement of knee joint dynamics.
Effect Of Renewable Distributed Generators On The Fault Current Level Of The Power Distribution Systems, Hadi Zayandehroodi, Azah Mohamed, Hussain Shareef, Masoud Farhoodnea, Marjan Mohammadjafari
Effect Of Renewable Distributed Generators On The Fault Current Level Of The Power Distribution Systems, Hadi Zayandehroodi, Azah Mohamed, Hussain Shareef, Masoud Farhoodnea, Marjan Mohammadjafari
Dr. Hadi Zayandehroodi
The presence of renewable distributed generator (RDG) in a distribution system will have unfavorable impact on the operating system because the distribution system is no longer radial in nature and is not supplied by a single main power source. With RDGs in a distribution network, it brings about a change in the fault current level of the system and causes many problems in the protection system, such as false tripping of protective devices, protection blinding, an increase and decrease in short-circuit levels. This paper presents the effect of RDGs on the fault current level of the system. The operating protection …
Short Term Wind Power Forecasting Using Autoregressive Integrated Moving Average Modeling, Almoataz Youssef Abdelaziz
Short Term Wind Power Forecasting Using Autoregressive Integrated Moving Average Modeling, Almoataz Youssef Abdelaziz
Almoataz Youssef Abdelaziz
Wind energy is one of the most promising electricity generating sources as a clean and free alternate compared with the conventional power plants and due to the volatility feature in the wind speeds it will reflect some problems in power systems reliability particularly if the system is deeply penetrated by wind farms. Therefore, Wind power forecasting issue became and is still an important scope that will help in economic dispatch (ED), unit commitment (UC) purposes to get more reliable and economic systems. This paper introduces short term wind power forecasting model, based on autoregressive integrated moving average (ARIMA) which will …
Z-Source Inverter For Automotive Applications, Omar Ellabban, Joeri Van Mierlo
Z-Source Inverter For Automotive Applications, Omar Ellabban, Joeri Van Mierlo
Omar Ellabban
No abstract provided.
Management Of Electric Distribution Systems Planning, Almoataz Youssef Abdelaziz
Management Of Electric Distribution Systems Planning, Almoataz Youssef Abdelaziz
Almoataz Youssef Abdelaziz
In the present paper a proposed planning management method for MV (medium voltage) distribution networks is formulated. This proposed method takes into consideration combined effect of voltage drop; overloads and a technical power loss based on the worst network conditions, and proposes the main constraints of mathematical calculation of the presented case studies. A genetic algorithm (GA) with multi-criteria optimization technique is applied for solving the problem of system reconfiguration in a distribution system. The GA has been tested with promising results on a real radial distribution system. The proposed algorithm can be applied efficiently to large systems, and the …
A Novel Neural Network And Backtracking Based Protection Coordination Scheme For Distribution System With Distributed Generation, Hadi Zayandehroodi, Azah Mohamed, Hussain Shareef, Masoud Farhoodnea
A Novel Neural Network And Backtracking Based Protection Coordination Scheme For Distribution System With Distributed Generation, Hadi Zayandehroodi, Azah Mohamed, Hussain Shareef, Masoud Farhoodnea
Dr. Hadi Zayandehroodi
With the increased installation of renewable energy based distributed generations (DGs) in distribution systems, it brings about a change in the fault current level of the system and causes many problems in the current protection system. Hence, effective protection schemes are required to ensure safe and selective protection relay coordination in the power distribution system with DG units. In this paper, a novel adaptive protection scheme is proposed by integrating fault location with protection relay coordination strategies. An automated fault location method is developed using a two stage radial basis function neural network (RBFNN) in which the first RBFNN determines …
Capacitor Voltage Control Techniques Of The Z-Source Inverter: A Comparative Study, Omar Ellabban, Joeri Van Mierlo, Philippe Lataire
Capacitor Voltage Control Techniques Of The Z-Source Inverter: A Comparative Study, Omar Ellabban, Joeri Van Mierlo, Philippe Lataire
Omar Ellabban
The Z-source inverter (ZSI) is a recently proposed single-stage power conversion topology. It adds voltage boost capability for complementing the usual voltage buck operation of a traditional voltage source inverter (VSI) with improved reliability. In this paper, a single-loop and dual-loop capacitor voltage control techniques for the ZSI are digitally designed based on a third order small signal model of the ZSI, implemented using a digital signal processor (DSP) and compared. Simulation and experimental results of a 30 kW ZSI during input voltage changes, load disturbances and steady state operations are presented and compared. The results show that the dual-loop …
Super Critical Steam Turbine, Vijaya Krushna Varma Mr
Super Critical Steam Turbine, Vijaya Krushna Varma Mr
VIJAYA KRUSHNA VARMA Mr
Varma designed ultra modern and high efficiency turbines which can use gas, steam or fuels as feed to produce electricity or mechanical work for wide range of usages and applications in industries or at work sites. Varma turbine engines can be used in all types of vehicles. These turbines can also be used in aircraft, ships, battle tanks, dredgers, mining equipment, earth moving machines etc http://turbine.net.in
Strategies For Enhancing Research Visibility And Improving Citations, Hadi Zayandehroodi
Strategies For Enhancing Research Visibility And Improving Citations, Hadi Zayandehroodi
Dr. Hadi Zayandehroodi
Publishing a high quality paper in scientific journals is a halfway of receiving citation in the future. The rest of the way is advertising and disseminating the publications by using the proper “Research Tools”.