Papers by mohamed Abdelwanis
Energies
This paper is interested in implementing and controlling a modified six-phase induction motor (MS... more This paper is interested in implementing and controlling a modified six-phase induction motor (MSPIM) when fed from a three-phase supply either via an inverter or with a direct grid connection loaded by a centrifugal pump. The main aims of using the MSPIM are to enhance motor reliability and reduce torque pulsation. A three-to-six phase transformer has been designed, implemented, and employed to enable the SPIM to be driven from a three-phase supply. It is preferable to use the three-to-six phase transformers integrated with three-phase inverter on using the six-phase inverter to generate lower values of harmonics and lower steady-state error of speed and reduce the starting current and because also it isolates the primary circuit from the secondary, and the cost will be lower compared to the design of a special six-phase inverter. Dynamic models of SPIM, three-to-six phase transformer, and three-phase variable speed drive are derived. Then, a scalar (V/F) closed-loop control of SPI...
2019 21st International Middle East Power Systems Conference (MEPCON), 2019
The electrical earthing/grounding for power systems is very important to restrict the residual cu... more The electrical earthing/grounding for power systems is very important to restrict the residual current from any unwanted fault and reduce undesirable outage and prevent shock hazard. Many factors can affect the earthing system; corrosive soils with high moisture content and high salt content…etc. The proper design for earthing system depends on many parameters and must be carefully measured in the installed earthing site “i.e. moisture, temperature, salt contents…etc.”. In most cases, after determining the earth resistance system referenced to the standard values, there is no followed up by preventive maintenance during the life time of earthing system which leads to serious defaults in safety system. This paper introduces an actual model system which is a newly on-time automatic measuring and correcting earthing site system. The proposed technique uses an Aurduino program integrated with suitable electromechanical and electronic equipment as inputs and outputs corrected parameters....
2019 21st International Middle East Power Systems Conference (MEPCON), 2019
This paper concerns with the application of optimized operation of synchronous motor problem (SM)... more This paper concerns with the application of optimized operation of synchronous motor problem (SM) in industrial power system applications. This represents an active area of research, and many modeling and computational techniques are periodically being proposed for solving these problems. Therefore, this paper proposes optimization procedure for the operation of (SM) using Particle Swarm Optimization (PSO) and Jaya optimization techniques. The optimal operation of synchronous motor by using PSO and Jaya is suggested with constant outputs to minimize the motor armature current, maximize the motor efficiency, minimize the synchronous motor input apparent power and reactive power with reducing of the copper losses. The analysis of results explains the benefits of using the optimization methods (PSO, Jaya) with respect to the traditional method especially Jaya optimization results. The implementation work (practical) is carried out in laboratory of faculty of engineering in Kafrelsheikh...
2017 Nineteenth International Middle East Power Systems Conference (MEPCON)
This study is concerned with the implementation and analysis of the modified six phase induction ... more This study is concerned with the implementation and analysis of the modified six phase induction motor (MSP-IM) that drives a centrifugal pump system. The MSP-IM aims to enhance the torque pulsation and increase the motor reliability. Dynamic models of six-phase IM are derived. A trial and error based tuning of PID controllers is employed to sustain the motor speed at the predefined reference values. A six-phase low pass filter is designed to eliminate the undesirable harmonics contents. A scalar V/f closed-loop six-phase induction motor control is employed and its simulation results are discussed. Pulse width modulation (PWM) based simulation studies were developed for MSP-IM using Matlab/Simulink Software. The results show that the PWM inverter reduces the THD for current and voltage waveforms. The performance of the MSF-IM is enhanced compared with the equivalent three phase IM.
Journal of Electrical Engineering
This paper presents control and analysis of a split-phase induction motor (SPIM) to drive a centr... more This paper presents control and analysis of a split-phase induction motor (SPIM) to drive a centrifugal pumping system. An optimized proportional- integral and derivative (PID) controller, that is capable with a vector closed-loop split-phase induction motor control, is presented and its simulation results are discussed. The fine-tuning procedure is employed for fuzzy PID (FPID) controller parameters in order to sustain the motor speed at the predefined reference values. To assess the performance of the competitive controllers, conventional PID (CPID) and FPID, four operational indices for are suggested for measure the capability of the two controllers. These indices involve individual steady state error (ISSE) for each operating period, total steady state error (TSSE) for overall loading cycle, Individual oscillation index (IOI) and Total oscillation index (TOI), in order to measure the capability of the FPID compared with CPID. The performance of the SPIM accomplished with these p...
Iranian Journal of Science and Technology, Transactions of Electrical Engineering
This study presents the implementation and analysis of the modified six-phase induction motor (IM... more This study presents the implementation and analysis of the modified six-phase induction motor (IM) that drives a centrifugal pumping system. The three-phase IM is modified to operate as a six-phase IM to enhance the torque pulsation and to increase the motor reliability. Dynamic models of six-phase IM are derived. A fuzzy-based procedure for fine-tuning of the PID controller parameters is proposed in order to sustain the motor speed at the predefined reference values. Added to that, a six-phase low-pass filter is designed to eliminate the undesirable harmonics contents. An optimized PID controller accomplished with a scalar V/f closed-loop six-phase induction motor control is presented and its simulation results are discussed. Pulse width modulation (PWM)-based simulation studies were employed for six-phase induction motor using MATLAB/SIMULINK software. The simulation results show that the PWM inverter reduces the THD for current and voltage waveforms and the overall performance of the modified six-phase IM is enhanced compared with the equivalent three-phase induction motor.
International Journal of Engineering Research in Africa, 2015
This paper proposes a sensorless procedure to estimate the induction motor speed and the dependab... more This paper proposes a sensorless procedure to estimate the induction motor speed and the dependable heat contents of the stator and rotor sides. The proposed procedure is based on the electrical models of a three phase Induction Motor (IM). The motor electrical models for normal and abnormal will be discussed and a technique is introduced for accommodating frequency dependent skin effect of the rotor resistance using a simple proposed speed estimation algorithm. The electrical models are customized from the positive and negative sequence networks. The speed detection is based on the rotor parameters slip dependent. The models are then used to analyze different operating conditions of the motor. Two thermal motor protection schemes are suggested. The first scheme is dependent on the stator side while the other scheme is developed for rotor side. The Matlab software is used for this purpose to emulate efficiently the proposed estimation procedures through a complete motor modeling whi...
This paper investigates an optimization procedure for the design of a synchronous motor (SM) usin... more This paper investigates an optimization procedure for the design of a synchronous motor (SM) using a particle swarm optimization (PSO) procedure. The PSO is proposed to minimize the motor volume and to maximize the motor output power. The proposed procedure has two stages for motor design. In the first stage, the stator parameters are optimized while in the second stage, the field and damper winding are designed. The proposed algorithm is efficiently compared with the practical experience-based method. The proposed procedure is efficiently design the SM based on the 4pole prototype synchronous machine which is produced at 27 military production factories. The proposed procedure leads to more economical motor compared to the practical experience based method. Also, the proposed procedure maximizes the SM developed apparent power and reduces the field/damper windings in terms of their conductors' diameters and number of conductor per slot.
The International Conference on Electrical Engineering
Uploads
Papers by mohamed Abdelwanis