Majed S. M. Al-Hafid

• Ph.D in Power and Machine
• Engineer at University of Mosul

The increasing use of power-electronics equipment has led to various power quality problems, including current wave distortion . Also, renewable energies (solar and wind energy ) are increasingly used to supply part of the electrical load, especially Photovoltaic (PV). The use of PV-STATCOM achieves many benefits, among them mitigating the distorti...

The electrical load is affected by the weather conditions in many countries as well as in Iraq. The weather-sensitive electrical load is, usually, divided into two components, a weather-sensitive component and a weather-insensitive component (baseload). The impact of the weather-sensitive component includes the summer and winter periods, without di...

The electrical load is affected by the weather conditions in many countries as well as in Iraq. The weather-sensitive electrical load is, usually, divided into two components, a weather-sensitive component, and a weather-insensitive component. The research provides a method for separating the weather-sensitive electrical load into five components....

26/4/2021 ‫القبول:‬ ‫تاريخ‬ 13/7/2021 ‫الخالصة‬ ‫للط‬ ‫الحساس‬ ‫الكهربائي‬ ‫الحمل‬ ‫تقسيم‬ ‫عادة‬ ‫يتم‬ ‫العراق.‬ ‫ذلك‬ ‫في‬ ‫بما‬ ، ‫البلدان‬ ‫من‬ ‫العديد‬ ‫في‬ ‫الجوية‬ ‫بالظروف‬ ‫بشدة‬ ‫الكهربائي‬ ‫الحمل‬ ‫يتأثر‬ ‫م‬ ‫إلى‬ ‫قس‬ ‫مركبة‬ ‫ركبتين،‬ ‫بدو‬ ‫والشتاء،‬ ‫الصيف‬ ‫فترتي‬ ‫للطقس‬ ‫الحساسة‬ ‫المركبة‬ ‫تأثير‬ ‫يشمل‬ ‫األساسي).‬ ‫(الحمل‬ ‫للط...

The electrical energy crisis is a global problem that all developing countries face in general and Iraq in particular. A lot of body in the literature holds that lifestyle and consumption choices strongly affect residential energy consumption. Hitherto releasing energy savings in households is not simple. Previous studies indicate that the lighting...

In power systems, Voltage Stability (VS) is a crucial topic in the field of power systems. VS indices are currently utilized to determine the margin of VS. To ensure an appropriate range of VS, there must be sufficient reactive power capacity, hence finding the amount of this reactive power is an important issue. There are many intelligent programm...

The residential electrical load in the city of Mosul as well as in most of cities in Iraq, is the major problem for the administration of electricity distribution. Since this kind of load is increasing drastically compared with other loads such as industrial, agricultural tourism and others which are declining for the last two decades due to unstab...

Residential electrical load in Iraq can be divided into five components, lighting, home appliances, heating, cooling and water heating. Water heating component represents the largest residential electric load component in Iraq. The current research aims to test the possibility of using solar water heaters to supply hot water to residential units. S...

The residential load is one of the largest components of the electrical load in the Iraqi power system. We can supply a part of the residential loads by utilizing the renewable energies. Recent research's show that the applications of a hybrid power system is preferable to achieve this goal. For residential loads connected to the grid (on grid) wit...

The residential load is one of the largest components of the electrical load in the Iraqi power system. We can supply a part of the residential loads by utilizing the renewable energies. Recent research's show that the applications of a hybrid power system is preferable to achieve this goal. The paper studied the possibility of supplying part of th...

This study tries to find the optimal hybrid solar-wind renewable energy system which can be used to supply residential loads in Mosul city. The renewable energies available in the study area are first identified. Then these energies are suggested to form the proposed hybrid power system. HOMER software was used to simulate the system and find it's...

Static synchronous compensation (STATCOM) is an application that utilizes a voltage source converter (VSC) to provide instantaneous reactive power support to the connected power system. Conventionally, STATCOMs are employed for reactive power support only. However, with the integration of energy storage (ES) into a STATCOM, it can provide active po...

Load forecasting is a process of predicting the future load demands. It is important for electrical power system planners and demand controllers in ensuring that there would be enough supply of electricity to cope with increasing demands. Thus, accurate load forecasting can lead to an overall reduction of cost, better budget planning, maintenance s...

Static synchronous compensator (STATCOM) is an application that utilizes a voltage source converter (VSC) to provide instantaneous reactive power support to the connected power system. Conventionally, STATCOM is employed for reactive power support only. However, with the integration of energy storage (ES) into a STATCOM, it can provide active power...

Load Forecast is a basic goal in electrical power system. Optimal operation, maintenance, and planning based on a good prediction of the electrical load. Higher error of electrical loads estimation (either increase or decrease) may leads to problems in this system. Therefore, the choice of high accuracy model gives critical to the system power. Ele...

Residential load in Iraq, which is weather sensitive load, can be divided into four components. The four components are base component, cooling air conditioning component, heating air conditioning component and water heating component. The present work suggest the use of solar water heating to reduce the fourth component (water heating component)....

Residential load in Iraq, which is weather sensitive load, can be divided into four components. The four components are base component, cooling air conditioning component, heating air conditioning component and water heating component. The present work suggest the use of solar water heating to reduce the fourth component (water heating component)....

The drastic increase of residential load consumption in recent years result in over loading feeder lines and transformers for the Iraqi northern area distribution system especially in the city of Mosul. Solution for this problem require up to date research consumers load study to find the proper solution to stop excess overload in the transformers...

Static synchronous compensator (STATCOM) is a regulating device used in AC transmission systems as a source or a sink of reactive power. The most common use of the STATCOM is in improving the voltage stability of the transmission system. This work suggests a simple and easy to implement PI controller to control the operation of a 12-pulse STATCOM p...

Hydrothermal systems are operated by economical scheduling to produce minimum cost for thermal generation, subject to hydraulic and thermal constraints, and demand for electricl energy. The operating planning problem is usually solved by decomposing the original problem into long, medium and short-ter scheduling problems, each one considering suita...

The drastic increase of residential load consumption in recent years result in over loading feeder lines and transformers for the Iraqi northern area distribution system especially in the city of Mosul. Solution for this problem require up to date research consumers load study to find the proper solution to stop excess overload in the transformers...

Reactive power compensation is considered to be very essential to support and stabilize the voltage of buses within permissible limit. The problem of reactive power compensation can be divided into three parts: planning, expansion and control. Planning means setting of the location and magnitude of reactive power compensation resources in the elect...

The drastic increase of residential load consumption in recent years result in over loading feeder lines and transformers for the Iraqi northern area distribution system especially in the city of Mosul. Solution for this problem requires up to date research consumers load study to find the proper solution to stop excess overload in the transformers...

The static Synchronous Compensator (STATCOM) is a solid-state shunt device that generates or absorbs reactive power and is one member of a family devices known as Flexible AC Transmission System (FACTS) devices. It is superior to the static VAR Compensator (SVC) in many ways. In this work it is suggested to use the (STATCOM) in the existing H.V. Ir...

AL_Nahrain Journal, University of AL_Nahrain, Baghdad, Iraq. (Formerly was called: A Scientific Refereed Journal Published by Saddam University) Volume: 6, Number: 1, July-2002 Abstract Development of water resources, saving electric energy, development of the rural areas, and stopping negative effects on the environment are the most important sub...

Title of the presented paper Small Hydroelectric Plant Design for Optimum Utilization of Seasonal Valleys Iraqi Engineers Union Nineveh branch and College of Eng. University of Mosul, Iraq 17, October 2001, pages 22-34,

The Micro-hydro Power Station Role for Utilizing Seasonal Water Resources in Arab World

Externally excited induction generator has many advantages compared with synchronous generator, but it suffers from the operation at low lagging power factor. The paper describes an externally excited three phase induction generator unit. The main control equipment used are governor and exciter (reactive power). The proposed system is based on a mi...

The Best Regards Utilization of Dams for Hydropower Generation Using Digital Computer

The Current and Future outlook for hydroelectric Energy in Iraq The First Iraqi Energy Conference, Baghdad, 10-12 Nov. 1992, 16 Pages. (The research is in the Arabic language.)

Symposium Title: Rationalization of Present Energy and the Future Energy Prospects, Title of the paper, (in Arabic). The capability of exploiting renewable energy in Iraq College of Eng., University of Mosul, Iraq 12-13, April 1992, pages 105-112,

The application of a microprocessor technique can provide an accurate and reliable means for inserting and disconnecting of the DBR (dynamic braking resistor). This technique is based on the realization of the critical clearing time for the particular power system involved. Such a technique can provide the means to assess stability conditions by im...

This paper considers the application of microprocessor techniques in obtaining accurate, automatic and reliable excitation systems. The paper describes a modified static excitation scheme using a microprocessor. The excitation current is determined taking into account the voltage. current and power factor effects. The scheme is suitable for steady...