Download more than 100 examples of thesis, proposal and project topics about voltage instability in editable WORD file format at undergraduate, graduate and doctoral levels for use and reference in research, articles, theses, student and academic projects.
Dissertation for Master's Degree in Electrical Engineering, Power Systems, Abstract: During the last two decades, the electricity industry has undergone fundamental changes in the way it is produced, transmitted and distributed, which is referred to as restructuring. With the restructuring in the electricity industry, reactive power has been introduced as one of the most ...
Dissertation for M.sc degree, field: electricity, orientation: power electronics. Abstract Voltage stability is related to the power system's ability to maintain acceptable voltages in all system buses under normal conditions and after disturbance. The system enters an unstable state when a disturbance, an increase in the required load or a change in the system's position causes ...
Dissertation for Master's Degree Abstract Today, preventing losses caused by blackouts and undistributed energy is very important. Therefore, one of the most important issues in the operation of the distribution network is the renewal of the load, which has a great impact on the constant service to the subscribers. When a part of the network is cut off due to an error or ...
Dissertation for master's degree in electrical engineering, power orientation. Abstract The limitation of fossil fuel resources and the possibility of running out of fossil energy reserves, global warming, environmental pollution, price instability, as well as the increasing need of industrial and urban centers for energy, have made the international community think of suitable ...
Dissertation for Master's Degree in Electrical Engineering (M.Sc) Abstract The power system stabilizer is added to the excitation system in order to improve the damping of the power system during low frequency disturbances. For large-scale power systems that include a large number of connected generators, setting the power system stabilizer parameters will be a complex and ...
Master's Thesis in the field of electrical engineering- control, abstract assessment of the transient stability of power systems using the data of phasor measurement units, quick assessment of security in power networks in emergency situations and the occurrence of various errors, is a vital thing to prevent collapse and create nationwide outages. Therefore, the evaluation ...
Dissertation for receiving a master's degree in the field of: Power Electricity, the increase in the presence of non-linear power electronic loads in distribution networks, on the one hand, and the ongoing changes in distribution networks, such as the presence of scattered production sources and the possibility of forming power microgrids [1], have increased the need for new ...
Master's thesis in the field of electrical engineering - power abstract of the possible analysis of dynamic stability of microgrids, considering wind turbines, in recent years, the high penetration of renewable energy sources, especially wind energy, in power networks has created new problems. One of the most important issues is the uncertainty in the power produced by wind ...
Dissertation for Master's Degree (M.S) in Power Electricity, Abstract With the ever-increasing expansion of energy consumption in the world, the development of power networks is essential. But the creation of new transmission lines requires time and high costs, so if it is possible to use the same lines with a higher transmission capacity, it is very cost-effective. Today, the ...
Abstract This thesis deals with uncertainty estimation in robust control of robotic arms and presents new methods based on voltage control strategy for uncertainty estimation. The voltage control method is much simpler compared to the conventional torque control method, because it does not require a complex non-linear model of the robot. As a result, the volume of controller ...
Dissertation for receiving a master's degree in the field of: Power Electricity Abstract The increase in the presence of non-linear power electronic loads in distribution networks on the one hand and the ongoing changes in distribution networks such as the presence of scattered production sources and the possibility of forming power micro-grids[1] have increased the need for new ...
Master's Thesis in Mechanical Engineering, Applied Design, Abstract: Microelectromechanical systems are generally classified based on the type of their excitation mechanism. In addition to electrostatic excitation, which is considered as one of the most important excitation mechanisms, thermal excitation is widely used in multi-layered and functionally variable ...
Dissertation for Master's Degree in Mechanical Engineering (Applied Design) Abstract: Electromechanical micro and nano systems have been noticed due to their distinctive features and unique characteristics, mainly in the two fields of sensors and sensors, in various sciences such as mechanics, aerospace and medicine. Electrostatic stimulation is one of the simplest and most ...
Master's Thesis in the field of Electrical Engineering - Control Abstract Evaluation of the transient stability of power systems using the data of phasor measurement units by the efforts of Hanieh Mohammadi Rapid evaluation of security in power networks in emergency situations and the occurrence of various errors is a vital thing to prevent collapse and create nationwide ...
Doctoral thesis of electrical engineering - Power Abstract Islanding of interconnected power systems, which is also known for isolating and breaking power systems, is the last line of defense to deal with the collapse of the system and prevent catastrophic incidents in the power network. The islanding of interconnected power systems is presented as an extensive control method as ...
Introduction Flexible Power Transmission Networks (FACTS[1]), is one of the aspects of the electronic revolution that is happening in all fields of electrical energy. The concept of FACTS was first proposed in 1988 by Hingorani. In addition to the advantages of fast and reliable switching, the range of semiconductor power devices provides opportunities to value electrical energy ...
Dissertation for M.Sc. The tendency of the abstract power transmission networks of modern power systems is increasingly changing due to the increase in demand and limitations in the construction of new lines. One of the consequences of such a stressed system is the risk of losing stability after a disturbance. Flexible alternating current transmission systems (facts) are very ...
Dissertation for Doctoral Degree Abstract This thesis deals with uncertainty estimation in robust control of robotic arms and presents new methods based on voltage control strategy to estimate uncertainty. The voltage control method is much simpler compared to the conventional torque control method, because it does not require a complex non-linear model of the robot. As a ...
Dissertation for Master's Degree in Mechanical Engineering, Applied Design, Abstract: Microbeams are used as the main element in most sensors and actuators. In some cases, such as micro switches, this member may also be used in an environment containing fluid. Therefore, in this article, we analyzed the dynamic behavior and frequency analysis of a micro beam that is located in a ...
Master's Thesis in Family Counseling Abstract: Objective: The present study was conducted with the aim of comparing resilience, marital instability and psychological well-being in two groups of mothers of normal and hearing-impaired children in Tehran using a quantitative-qualitative method. Method: In the quantitative part, using available sampling, a sample consisting of 100 ...
Dissertation of the master's degree in the field: Electrical Engineering - Power trend. Abstract Today, despite the wide use of sensitive loads such as power electronics, computers and non-linear loads in distribution networks, the issue of power quality has received more attention. Most of these loads are sensitive to voltage changes, such as undervoltage and overvoltage, and ...
Dissertation for master's degree in electrical engineering, power orientation Abstract: The use of renewable energy to produce electrical energy has increased increasingly with the expansion of the use of flexible alternating current transmission systems (FACTS), to compensate for the quality of power and voltage, the range of use of these energies has increased.
Dissertation for Master's Degree (M.Sc.) Orientation: Power Abstract In recent years, with the advances made in data processing and transmission technology, distribution companies are more and more interested in using distribution automation systems. One of the most effective users of automation is the renewal of the distribution network, which is often analyzed as an ...
Abstract Common-mode voltages and currents are generated due to the creation of parasitic capacitance between solar cells and their frame, which is usually grounded. These capacities are usually modeled as capacitors between the negative terminal of the solar cell and ground. In solar cells that are connected to the grid through a transformer, the electrical insulation of the ...
Dissertation for receiving the master's degree ""M.Sc."" Trend: The power of the series active filter is designed for harmonic separation and load voltage regulation in non-linear loads of single-phase and three-phase harmonic voltage source type. A new method for extracting harmonics of load voltage is proposed under the name of absolute value method, which is applied to the ...
Master's thesis in the field of electrical power Abstract: Pulsed power is the accumulation of energy after a relatively long period of time and the release of energy very quickly. This process is to increase the instantaneous power of the system. The characteristic of this pulse includes the voltage level and rise time based on the load requirements. Improvement of efficiency ...
Dissertation for M.Sc. Degree: Power Electronics Abstract: Distribution networks have various loads that consume different amounts of reactive power. Considering the effect of the type of load on the location and size of capacitor banks in distribution systems, in this thesis, a novel method for modeling different network loads in order to improve the voltage profile and reduce ...
Dissertation for obtaining a master's degree in the field of electrical engineering, power orientation Abstract Wind energy will be one of the important sources of electricity in future systems. In this work, an overview of wind energy power electronic control is provided and the development of modern power electronic components is also briefly reviewed. The application of power ...
Master's Thesis in Civil Engineering - Earthquake Engineering 1391 Abstract Structures with frames with coaxial braces are among earthquake resistant systems. These structures are widely
Dissertation for Master's Degree in Civil Engineering – Shahrivar Marine Structures, September 1992 Abstract: Pipe-in-pipe systems are widely used in transmission line applications.
Dissertation of master's degree in civil-structural engineering Abstract: Divergent bracing frames are considered earthquake-resistant systems for steel structures. These braces are from my difficulty
In order to receive a master's degree in civil-soil and soil engineering in March 2013, abstract, different methods are used to stabilize pits, among them nailing method and ink method.
Thesis of master's degree in the field: business management, orientation: international marketing Academic Year: 1391-1390 Abstract: This research aims to investigate investment attraction strategies and its obstacles in industrial development from
The first chapter General 1 - 1 program introduction Economic planning requires knowledge of the general performance of the country's economy. But in most countries, some of the economic activities are exposed to politics
Master's Thesis of Educational Sciences Abstract Introduction: Family is the first environment in which a child grows up. The birth and presence of a child with intellectual disability in any family can be considered an undesirable and challenging event and affect all aspects of the family. The general purpose of this research is to compare the performance and compatibility of ...
Thesis for Master's Degree in Family Counseling Abstract The main purpose of the present study is to examine the relationship between mothers' self-differentiation with parent-child conflict and the responsibility of female middle school students. The tools used in this research are 1- Self-Differentiation Questionnaire (DSI-R) of Yonesi. 2- Parent-Child Conflict Questionnaire ...
Master's Thesis in Social Welfare Abstract Introduction: Correctional center is a place for correction and rehabilitation of delinquent children and teenagers. In order to successfully implement rehabilitation programs, it is necessary for experts to be informed about the experiences of these people. This study was conducted with the aim of explaining the experiences and views ...
Thesis for the M.Sc degree in wood and paper industry engineering, Mehr 2013 Abstract: In this research, the physical and mechanical properties of nanocomposites obtained from cellulose nanofibers and poly polymers
Dissertation for M.A. Degree: Political Geography Abstract: The illegal entry of foreign nationals from the eastern borders to various cities of our country, especially Afghan and Pakistani nationals, has long been considered as one of the problems of the Iranian society, and this issue has been analyzed by experts and experts over the past years from the perspective of social ...
Thesis (or dissertation) to receive the master's degree. In the field of architecture, the architectural trend of Bahman 93 abstract: Since the creation of multi-purpose and multi-functional spaces in
Chapter 1 1-1-Introduction: Common fluids such as water, oils and ethylene glycol, which are usually used as heat transfer media, have a limited ability in terms of thermal properties, which is the first obstacle to compress and increase the efficiency of heat exchangers. One of the ways to improve heat transfer is to add particles to the fluid. This method is used for fluids ...
Dissertation for Master's Degree in Geography and Urban Planning Chapter 1: General Research 1- 1- Proposing the issue of urbanization expansion and its relationship with social and economic harms is one of the main characteristics of the country's urban development pattern in the last few decades, and accelerated growth and development and unbalanced distribution in the new era ...
Master's Thesis in Accounting (M.A) Abstract In this research, the relationship between the joint board of directors, discretionary disclosures and profit quality in 57 companies admitted to the Tehran Stock Exchange from the beginning of 2015 to the end of 2010 is examined. In this research, stock volatility, joint management board and independent director are considered as ...
Dissertation for Master's degree (M.A.) orientation: industrial and organizational evaluation of the effect of the quality of work life and organizational citizenship behavior on the organizational effectiveness of the employees of the Fars Medical Emergency Management Center. The statistical population of this research is made up of all the employees of Fars Medical Accident ...
Master's Thesis in Curriculum Planning The present study was conducted with the aim of investigating the characteristics of peace education in the primary school curriculum from the perspective of teachers and experts. The descriptive research method is of the contextualization type. The statistical population of the research included all primary school teachers in the 2nd ...
(To obtain a master's degree) 2013 Abstract: Oil as a strategic commodity has an important role in both economic and political terms. The world economy, especially during the last half century
Dissertation for Master's Degree in Economic Sciences 2018 Abstract Economic schools have different theories regarding the effect of monetary policies on the real variables of the economy. But all of them have a relationship
Master's Thesis in Geography and Urban Planning Abstract In general, earthquakes are one of the natural disasters that have destructive effects on human settlements and cause heavy loss of life and money to their residents. At the same time, the vulnerability of the city has a direct effect on the human casualties caused by the crisis, and the vulnerability caused by the ...
Thesis of Master's Degree in Economic Sciences, Mehr 2013 Abstract Although the achievement of economic development should be considered as a result of several factors, but without a doubt, one of the most important factors in creating it can be entrepreneurship.
Dissertation to obtain a master's degree Department of Economic Sciences, February 2013 Abstract: One of the important and influential topics in economic issues is the asset market. On the other hand, including M
Master's thesis in the field of economic sciences for the academic year 2013-1394 The first chapter Generalities of the research Introduction Today in many countries, especially in the developing countries, besides the economy
Thesis of Master's Degree in Economics, Economic Sciences, November 2019 Abstract: In countries that experience high inflation rates for a long time and the general level of prices increases dramatically.
Dissertation for Master's degree (M.Sc) Major: Accounting Abstract: The main purpose of this research is to investigate the impact of management insight and sales changes on the asymmetric behavior of costs of companies listed on the Tehran Stock Exchange. The statistical population of the current research is the companies admitted to the Tehran Stock Exchange during the years ...
An academic thesis for obtaining a master's degree in the field: Natural Geography - Geomorphology trend in environmental planning, abstract of the mutual effects caused by different resources and living and non-living components in a watershed, the necessity of implementing a systemic and integrated management model in watersheds with the aim of optimal resource efficiency and ...
(Strength – Orientation) Economics-Economics, January 2013 Abstract The revenues from the sale of oil have a significant share in the government's income and the government's gross domestic product in Iran. On the one hand, due to the importance of the industrial sector
Dissertation for Master's Degree (M.A.) Field: Economics: Energy Economics Fall 2013 Abstract of Thesis (including summary, objectives, implementation methods and results obtained): natural resources including
Dissertation for obtaining a master's degree in the field: Natural Geography, specialization: Geomorphology in environmental planning. Abstract: Today, one of the important factors in the occurrence of damages caused by environmental hazards is the lack of complete and scientific knowledge in different areas. The watersheds of Iran, especially in the watersheds of the Caspian ...
Dissertation for Master's Degree in Accounting Abstract: The purpose of this research is to investigate the impact of stock market fluctuations on the performance of companies. The desired criteria for measuring the performance of companies are return on equity (ROE) ? return on assets (ROA) ? net profit and economic added value and the desired criterion for fluctuations ? ...
Dissertation for Master's Degree (M.A.) Direction: Industrial and Organizational Abstract This research has been implemented with the aim of investigating the relationship between identity styles and emotional intelligence with job satisfaction in Pasargad health network employees. In order to reach the above goal, 132 employees were selected randomly to answer the research ...
Master's Thesis in Psychology (M. Sc.) Direction: Clinical Abstract Hypothyroidism is a chronic disease that can cause depression and sleep problems in people, therefore, the purpose of this study was to investigate the effectiveness of teaching emotional distress tolerance skills based on dialectical behavior therapy on depression and sleep problems of women with hypothyroidism ...
Master's thesis in the field of educational sciences, educational psychology, the purpose of this research was to investigate the relationship between rejection-acceptance of parents and the temperament of sixth grade female students with their aggressive behavior in Fouladshahr city. The current research method was correlational. In this regard, 196 sixth grade female students ...
The abstract of the present research was conducted to investigate the relationship between emotional skills and emotional security with the quality of married life of couples living in Rodan city. This research was designed and carried out by descriptive-correlation method. The tools used in this research were the Enrich Marital Satisfaction Test, the Toronto Emotional Awareness ...
Dissertation for the Master's degree (M-A) in the field: Political Geography Abstract Soft war is a new concept in terms of scientific research and a very old concept in terms of history. This concept is known in the world as soft power. Soft war in its modern concept with features such as software orientation, mentalization, emptying from within, changing cultural identity, ...
Abstract: The present thesis studies the role of the Republic of Armenia in the geopolitical development of the Islamic Republic of Iran in the Caucasus region, and in this way, while examining different approaches in the field of international relations and regional and extra-regional powers, it studies the geopolitical and geoeconomic characteristics of the region and the ...
Master's Thesis Abstract Thinking about the surrounding social phenomena begins when a question occupies the mind of the thinker. Philosophers of science believe that science begins with a problem and the problem will be extracted from the heart of the theory. In this research, while agreeing with the first part of this statement, the author refuses to accept the monopoly of ...
Dissertation for Master's Degree (M.A.) majoring in General Psychology Abstract Objective: The purpose of this research is to compare the quality of life, meaning of life, body image and mental health in two groups of menopausal and non-menopausal women with emphasis on their level of education. Research method: In the current comparative causal research, the statistical ...
Dissertation for obtaining a master's degree in the field of geography and rural planning, abstract considering that today, empowerment has become one of the main concepts of sustainable development and its relationship with sustainable development is in such a way that it is either considered as one of its components or as a factor or as a result of sustainable development, ...
Dissertation for Master's Degree (M.A.) Orientation: General Abstract: Topic: Explaining the mediating role of coping skills in the relationship between attachment styles and resilience. This study examined the mediating role of coping skills in the relationship between attachment styles and resilience. The investigated sample was 250 male and female high school students of ...
Dissertation for Master's Degree in Social Science Research Abstract: The purpose of the above research is to examine the role of social, economic and political issues and barriers, their intensity and weakness in the investment process in Khalkhal city with a view to the whole country, and the role of the amount of support, supervision and guidance of investment by the relevant ...
Master's degree thesis in the field of geography and urban planning summarizes the physical development and growth of Iranian cities until a few decades ago, coordinated and appropriate to the needs of the urban society. With the emergence of new developments, cities quickly accepted changes and transformations. These transformations have been in the form of rapid population ...
Faculty of Postgraduate Education, Department of Physical Education and Sports Sciences Thesis for receiving the Master's degree "".M.A"" specialization Pathology Abstract The aim of the present study is to investigate the relationship between the type of sleeping with lumbar lordosis and to provide corrective movements in boys aged 10 to 14 years of Islamabad Gharb city. For ...
Master's thesis in the field of clinical psychology. Abstract of the comparison of coping skills, impulsivity and behavioral disorders in three groups of unsupervised, poorly supervised and normal adolescents. Unfortunately, today we witness that the number of unsupervised and poorly supervised children and adolescents is increasing every day. Many social variables are involved ...