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Dr. Hedaya Alasooly Power Quality Analyzers and Monitors

Technology & Engineering
English
13740 Words
No Age Recommendation
85
0

Power Quality can be defined as the characteristics of the electricity at a given point on an electrical system, evaluated against a set of reference technical parameters. These parameters might relate to the compatibility between electricity supplied on a network and the loads connected to that network. The voltage waveform is normally distorted, and we have the so called Power Quality disturbances such as; voltage dips/swells, transients, harmonics and voltage unbalance amongst others. The study of Power Quality encompasses the Power Quality disturbances, as well as Power Quality standards, and Power Quality Monitoring. This project will tackle the subject of Power Quality, Power Quality Disturbances, Power Quality Standards as well as Power Quality Monitoring. A general description of each of the disturbances will be given, and the basic techniques which are used to mitigate that disturbance so as to improve the quality of the supply are presented. [more]

Keywords: Power Quality, Electrical Energy, Power System, Power Quality Monitoring, Power Quality Monitor, Harmonics, Filters, Swaziland Electricity Company

$14.99

Dr. Hedaya Mahmood Alasooly Control of Flexible Alternating Current Transmission System (FACTS) for Power Stability Enhancement

Technology & Engineering
English
30086 Words
No Age Recommendation
70
0

The thesis will try to summarise the major power system problems and the important role of the FACTS devices to enhance the power system quality. Then, it will give a brief description for various FACTS and Active Filters controllers as mentioned on the existing publications. Most of the control schemes introduced in the existing papers were designed either for eliminating current harmonics or eliminating voltage flickers or for load flow control. So, this work is devoted to find a proper optimal control schemes for a system with series or shunt or series and shunt converters that can provide all functions together. Various optimal control schemes will be designed for systems with series, shunt and series-shunt converters with the objective to control the load flow through a lines and to eliminate current harmonics and voltage flickers with different strategies for tracking. Chapter 1: Gives a general description of most power system problems and the basic techniques used to improve the power system quality. It also gives idea about basic objectives from the FACTS devices. Chapter 2: Offers detailed description for the basic types of FACTS devices and active filters existing in power industry. Chapter 3: Describes various shunt controllers for control of the Static Compensator (STATCOM) and various series controllers for the control of the Static Synchronous Series Compensator (SSSC) and various Unified Power Flow Controllers (UPFC) as covered in most existing papers. Chapter 4: Describes the major control schemes for the shunt active filter as covered by most existing papers. Chapter 5: Describes the major control schemes for the other types of active filters as covered by most existing papers. Chapter 6: Gives description for optimal control design. Chapter 7: Case studies to design different optimal control schemes for system with UPFC unit to control the power flow, eliminate voltage flicker and eliminate current harmonics. The case studies were repeated for system with only series or shunt converters. [more]

Keywords: FACTS Devices, Power Quality, Power Reliability, Active Filters, Optimal Control, Suboptimal Control, Current Harmonics, Load Flow, Power Stability, Voltage Flicker, UPFC, Shunt Converter, Series Converter, PhD Thesis

$21.99

Dr. Hedaya Mahmood Alasooly Case Studies for Optimal Control Schemes of Power System with FACTS Devices and Power Fault Analysis

& Some Stories of Academic Corruption on My Life

Technology & Engineering
English
11187 Words
No Age Recommendation
133
0

This book is divided to three parts related to case Studies for optimal control schemes of power system with FACTS devices, and power system fault analysis, and some stories of academic corruptions on my life. • Part A: Optimal Control Schemes for Power System with FACTS Devices• Part B. Calculation of Critical Distance in Faulted Meshed Power System• Part C: Real Stories of Academic Corruption in My Life I. Part A: Optimal Control Schemes for Power System with FACTS Devices:Most of the control schemes introduced in the existing papers were designed either for eliminating current harmonics or eliminating voltage flickers or for load flow control. So, this work is devoted to find a proper optimal control schemes for a system with series or shunt or series and shunt converters that can provide all functions together. Various optimal control schemes will be designed for systems with series, shunt and series-shunt converters with the objective to control the load flow through a lines and to eliminate current harmonics and voltage flickers with different strategies for tracking. II. Part B. Calculation of Critical Distance in Faulted Meshed Power SystemFaults studies form an important part of power system analysis. The problem consists of determining bus voltages and line currents during various types of faults. If the fault location is known the problem can be easily solved. But if the fault location is unkown, it is difficult to solve the problem. If the fault location is known the problem can be easily solved. But if the fault location is unkown, it is difficult to solve the problem. This part provided proper solution based in Gauess Seidal to find the critcal distance in meshed power system III. Part C: Real Stories of Academic Corruption in My LifeIn this part, I will speak about the academic corruption I saw in some universities and academic institutions according to my experience with them. [more]

Keywords: FACTS Devices, Power Quality, Power Reliability, Active Filters, Optimal Control, Suboptimal Control, Current Harmonics, Load Flow, Power Stability, Voltage Flicker, UPFC, Shunt Converter, Series Converter, short circuit analysis, voltage dip, meshed power system, fault analysis, Academic Corruption, Higher Colleges of Technology, University of Swaziland, Palestinian Energy And Natural Resources Autority, Palestinian University, PENRA, Corruption, story [more][Less]

$14.99

Abdullah Al Junayed The Whispering Labyrinth

The Whispering Labyrinth by Abdullah Al Junayed

Fantasy
English
5222 Words
Ages 6 and up
20
0

In a world where realms intertwine and magic weaves its threads through the fabric of existence, two unlikely heroes embark on a perilous journey to restore balance and safeguard the symphony of the realms. Emma, a spirited adventurer, discovers an ancient artifact that holds the key to unlocking the Nexus of Worlds—a gateway to realms forgotten. Alongside her loyal companion, Seraphine, a skilled mage with a mysterious past, they traverse treacherous landscapes, confront ancient prophecies, and face the malevolent sorcerer, Malachar. As they delve deeper into the enigmatic Nexus, they unravel secrets that challenge their understanding of harmony and test the limits of their bond. Guided by wise Harmonics and aided by allies met along the way, Emma and Seraphine must channel their powers and unite the realms in a symphony of balance. Will they restore the delicate equilibrium or succumb to discord, forever altering the fate of existence? "Symphony of Realms" is an epic tale of adventure, magic, and the enduring power of unity, weaving a captivating narrative that explores the intricate threads of destiny and the unbreakable bonds of friendship. [more]

Keywords: Abdullah Al Junayed, The Whispering Labyrinth, The Whispering Labyrinth by Abdullah Al Junayed

$2.49

Dr. Hedaya Mahmood Alasooly Some Case Studies on Signal, Audio and Image Processing Using Matlab

Computers
English
9185 Words
No Age Recommendation
75
0

This project shows some selected signal techniques, including image and audio processing, using the Matlab digital signal processing and image processing toolboxes. The project is divided to 3 parts. Part I includes design and implementation of different types of filters for filtering signal that has different sinusoidal frequency components or noise. The comparison was made between FIR low pass flter, butterworth filter, Chebycheve Type I low pass filter and Chebycheve Type II low pass filter. Then different types of IIR Butterworth filters were designed and implemented to filter a signal that has many harmonics components, including low pass filter, high pass filter, stop band filter and band pass filter. Part II examined audio filtering in the sense of specific frequency suppression and extraction. There are many different types of filters available for the construction of filters. We will specifically use the Butterworth filter. An audio signal was read and different types of filters, including low pass filter, high pass filter, stop band filter and band pass filter, were designed and implemented in order to filter the audio signal from some frequency bands. Then the discrete cosine transform compression examined on the audio signal at different compression rates: 50%, 75% , 87.5% Part III deals with image processing; the project shows examples in smoothing, sharpening, and edge detection. Other useful operations on the image were tested, including image cropping, image resizing, image, histogram equalization and altering image brightness [more]

Keywords: Signal Processing, Image Processing, Audio Processing, Matlab, Signal Processing Toolbox, Image Processing Toolbox, FIR Filters, IIR Filters, Signal Processing, Image Processing, Audio Processing, Matlab, Signal Processing Toolbox, Image Processing Toolbox, FIR Filters, IIR Filters

$8.99

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eBooks „Harmonics“

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eBooks „Harmonics“

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