Portfolio

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M

MOATAZ YASSIN
WORK PORTFOLIO
WORK & EXPERIENCE
I’m a Solar Energy Engineer graduated from Faculty of Engineering Cairo University -Electric Power and Machines
department where i worked on a graduation project in the field of the renewable energy, I worked in the field of the
solar energy for more than a year and half in designing and implementation different types of PV systems.
In this portfolio I’d like to present sample of my designs and implementations during my work experience.
DESIGNS
1- 500kWp Grid-Tie Plant.
3D Sketch for 500kWp PV Plant

Single Line Diagram for 500kWp PV Plant
2- Small scale systems.

IMPLEMENTATIONS

Grid-Tie Systems

Off-Grid Systems

Contenu connexe

Tendances

To improve the performance of photovoltaic system a modified cuk converter with Maximum Power Point Tracker (MPPT) that uses a fuzzy logic control algorithm is presented in this research work. In the proposed cuk converter, the conduction losses and switching losses are reduced by means of replacing the passive elements with switched capacitors. These switched capacitors are used to provide smooth transition of voltage and current. So, the conversion efficiency of the converter is improved and the efficiency of the PV system is increased. The PV systems use a MPPT to continuously extract the highest possible power and deliver it to the load. MPPT consists of a dc-dc converter used to find and maintain operation at the maximum power point using a tracking algorithm. The simulated results indicate that a considerable amount of additional power can be extracted from photovoltaic module using a proposed converter with fuzzy logic controller based MPPT

An efficient modified cuk converter with fuzzy based maximum power point trac...

An efficient modified cuk converter with fuzzy based maximum power point trac...

An efficient modified cuk converter with fuzzy based maximum power point trac...

Asoka Technologies

PURE poster

Patrick Wasilewski

The strive for efficient and cost-effective photovoltaic systems motivated the power electronic design developed here. The work resulted in a DC-DC converter for module integration and distributed maximum power point tracking (MPPT) with a novel adaptive control scheme. The latter is essential for the combined features of high energy efficiency and high power quality over a wide range of operating conditions. The switching frequency is optimally modulated as a function of solar irradiance for power conversion efficiency maximization. With the rise of irradiance, the frequency is reduced to reach the conversion efficiency target. A search algorithm is developed to determine the optimal switching frequency step. Reducing the switching frequency may, however, compromise MPPT efficiency. Furthermore, it leads to increased ripple content. Therefore, to achieve a uniform high power quality at all conditions, interleaved converter cells are adaptively activated. The overall cost is kept low by selecting components that allow for implementing the functions at low cost. Simulation results show the high value of the module integrated converter for DC standalone and microgrid applications. A 400 W prototype was implemented at 0.14 Euro/W. Testing showed efficiencies above 95% taking into account all losses from power conversion, MPPT, and measurement and control circuitry.

Irradiance-adaptive PV Module Integrated Converter for High Efficiency and Po...

Irradiance-adaptive PV Module Integrated Converter for High Efficiency and Po...

Irradiance-adaptive PV Module Integrated Converter for High Efficiency and Po...

Asoka Technologies

Solar rickshaw by malik computers daurala

Solar rickshaw by malik computers daurala

Solar rickshaw by malik computers daurala

Modeling the Irradiance and Temperature Dependence of PV Modules in PVsyst

Modeling the Irradiance and Temperature Dependence of PV Modules in PVsyst

Modeling the Irradiance and Temperature Dependence of PV Modules in PVsyst

Kenneth J. Sauer

Semi Perpetual Motion Machine(ppt)

Semi Perpetual Motion Machine(ppt)

Semi Perpetual Motion Machine(ppt)

Textile free energy source

Textile free energy source

Textile free energy source

Textile Engineering

P.generation from speed breaker

P.generation from speed breaker

P.generation from speed breaker

Muhammad Chhajro

A recent survey on the energy consumption in India had published a pathetic report that 85,000 villages in India do not still have electricity. Supply of power in most part of the country is poor. Hence more research and development and commercialization of technologies are needed in this field. India, unlike the top developed countries has very poor roads. Talking about a particular road itself includes a number of speed breakers. By just placing a unit like the “Power Generation Unit from Speed Breakers”, so much of energy can be tapped. This energy can be used for the lights on the either sides of the roads and thus much power that is consumed by these lights can be utilized to send power to these villages.

power generation using speed breaker presentation

power generation using speed breaker presentation

power generation using speed breaker presentation

Final PPT

This paper presents Permanent Magnet Synchronous generator (PMSG) based a variable speed wind turbine systems including energy capacitor system (ECS). The ECS is the combination of electric double layer capacitor (EDLC) known as super capacitor and power electronic devices for wind power application with its detailed modeling and control strategy which can supply smooth electrical power to the power grid and makes the system better stable and reliable. As generated power from wind fluctuates randomly, the objective of this control system is to select a line power reference level and to follow the reference level by absorbing or providing active power to or from ECS to smooth output power fluctuation penetrated to the grid and to keep the wind farm terminal voltage at a desired level by supplying necessary reactive power. The performance of the proposed system is investigated by simulation analysis using PSCAD/EMTDC software.

Stability enhancement of wind power system by using energy capacitor system

Stability enhancement of wind power system by using energy capacitor system

Stability enhancement of wind power system by using energy capacitor system

Asoka Technologies

This study proposes a single-stage solar photovoltaic energy conversion system (PV-ECS) integrated to a three phase four-wire (3P4W) distribution grid with dual-function capabilities, i.e. active power transfer and power quality (PQ) enhancement at the point of interaction (PoI). The PV-ECS system comprises of a solar photovoltaic array and a voltage source inverter (VSI), supplying active power (during daytime) to the distribution grid and connected single-phase and three-phase loads. Apart from transfer of power, the system also improves the PQ at the PoI by compensating reactive power and neutral current, attenuating harmonics, correcting power factor and balancing grid currents. During night, the VSI acts as a shunt active power filter mitigating PQ issues, thereby increasing the device utilisation factor. A three-phase magnitude-phase locked loop (3M-PLL) method is utilised to extract and estimate fundamental term of load currents and an incremental conductance algorithm is applied for maximum power point tracking. To demonstrate its effectiveness, the system is modelled and its performance is simulated on MATLAB and experiments are performed on a developed prototype in the laboratory.

Dual-function PV-ECS integrated to 3P4W distribution grid using 3M-PLL contro...

Dual-function PV-ECS integrated to 3P4W distribution grid using 3M-PLL contro...

Dual-function PV-ECS integrated to 3P4W distribution grid using 3M-PLL contro...

Asoka Technologies

VIBRATIONAL ENERGY HARVESTING POWER FROM ROAD SPEED BRAKER

VIBRATIONAL ENERGY HARVESTING POWER FROM ROAD SPEED BRAKER

VIBRATIONAL ENERGY HARVESTING POWER FROM ROAD SPEED BRAKER

VELAMMAL INSTITUTE OF TECHNOLOGY

This study presents a new circuit topology of the Modular Multilevel Converter (MMC) which is deployed for photovoltaic grid applications. In the conventional MMC, two arm inductors are placed in each phase to limit the circulating current. In the proposed topology, the inductors are replaced by a transformer. The proposed circuit gives a 50% reduction of the voltage rating of the power devices and the capacitors in comparison with the conventional MMC. The required dc-link voltage which is fed directly by PV panels is also reduced by half. The paper presents a PWM method to control the solar inverter output voltage. The proposed concept is confirmed through simulation and experimental results.

A New Circuit of Modular Multilevel Inverter for Grid-Connected Photovoltaic ...

A New Circuit of Modular Multilevel Inverter for Grid-Connected Photovoltaic ...

A New Circuit of Modular Multilevel Inverter for Grid-Connected Photovoltaic ...

Asoka Technologies

The project focuses on the utilization of wind energy as a renewable source which produces a clean and safe source of electricity. A Wind Turbine is a device that converts the wind’s kinetic energy into mechanical power. Generators help to convert mechanical power into electrical energy. The project dwells on implementation of a vertical axis wind turbine for the power generation by using magnetic levitation. Magnetic levitation (Maglev) is a method by which an object is suspended without any support with the help of the strong magnetic field. The repulsive force of magnets used for the reduction of the effect of gravitational force significantly. Magnetic force is used for reducing of gravitational force and to lift up the objects in the air. By this technique implementation of this vertical axis wind turbine is used for having negligible friction.

Friction Less Wind Turbine Using Magnetic Levitation

Friction Less Wind Turbine Using Magnetic Levitation

Friction Less Wind Turbine Using Magnetic Levitation

A method for generating electricity by fast moving by binay

A method for generating electricity by fast moving by binay

A method for generating electricity by fast moving by binay

Binay Kumar Tripathy

Systematic Approaches to Ensure Correct Representation of Measured Multi-Irra...

Systematic Approaches to Ensure Correct Representation of Measured Multi-Irra...

Systematic Approaches to Ensure Correct Representation of Measured Multi-Irra...

Kenneth J. Sauer

An affordable 3d printed tracking system for low capacity PV applications

An affordable 3d printed tracking system for low capacity PV applications

An affordable 3d printed tracking system for low capacity PV applications

CV _Nikunj Gandhi

CV _Nikunj Gandhi

CV _Nikunj Gandhi

Putting quantum to work

Putting quantum to work

Putting quantum to work

Brij Consulting, LLC

Tendances (20)

An efficient modified cuk converter with fuzzy based maximum power point trac...

An efficient modified cuk converter with fuzzy based maximum power point trac...

An efficient modified cuk converter with fuzzy based maximum power point trac...

PURE poster

Irradiance-adaptive PV Module Integrated Converter for High Efficiency and Po...

Irradiance-adaptive PV Module Integrated Converter for High Efficiency and Po...

Irradiance-adaptive PV Module Integrated Converter for High Efficiency and Po...

Solar rickshaw by malik computers daurala

Solar rickshaw by malik computers daurala

Solar rickshaw by malik computers daurala

Modeling the Irradiance and Temperature Dependence of PV Modules in PVsyst

Modeling the Irradiance and Temperature Dependence of PV Modules in PVsyst

Modeling the Irradiance and Temperature Dependence of PV Modules in PVsyst

Semi Perpetual Motion Machine(ppt)

Semi Perpetual Motion Machine(ppt)

Semi Perpetual Motion Machine(ppt)

Textile free energy source

Textile free energy source

Textile free energy source

P.generation from speed breaker

P.generation from speed breaker

P.generation from speed breaker

power generation using speed breaker presentation

power generation using speed breaker presentation

power generation using speed breaker presentation

Final PPT

Stability enhancement of wind power system by using energy capacitor system

Stability enhancement of wind power system by using energy capacitor system

Stability enhancement of wind power system by using energy capacitor system

Dual-function PV-ECS integrated to 3P4W distribution grid using 3M-PLL contro...

Dual-function PV-ECS integrated to 3P4W distribution grid using 3M-PLL contro...

Dual-function PV-ECS integrated to 3P4W distribution grid using 3M-PLL contro...

VIBRATIONAL ENERGY HARVESTING POWER FROM ROAD SPEED BRAKER

VIBRATIONAL ENERGY HARVESTING POWER FROM ROAD SPEED BRAKER

VIBRATIONAL ENERGY HARVESTING POWER FROM ROAD SPEED BRAKER

A New Circuit of Modular Multilevel Inverter for Grid-Connected Photovoltaic ...

A New Circuit of Modular Multilevel Inverter for Grid-Connected Photovoltaic ...

A New Circuit of Modular Multilevel Inverter for Grid-Connected Photovoltaic ...

Friction Less Wind Turbine Using Magnetic Levitation

Friction Less Wind Turbine Using Magnetic Levitation

Friction Less Wind Turbine Using Magnetic Levitation

A method for generating electricity by fast moving by binay

A method for generating electricity by fast moving by binay

A method for generating electricity by fast moving by binay

Systematic Approaches to Ensure Correct Representation of Measured Multi-Irra...

Systematic Approaches to Ensure Correct Representation of Measured Multi-Irra...

Systematic Approaches to Ensure Correct Representation of Measured Multi-Irra...

An affordable 3d printed tracking system for low capacity PV applications

An affordable 3d printed tracking system for low capacity PV applications

An affordable 3d printed tracking system for low capacity PV applications

CV _Nikunj Gandhi

CV _Nikunj Gandhi

CV _Nikunj Gandhi

Putting quantum to work

Putting quantum to work

Putting quantum to work

Portfolio

1. MOATAZ YASSIN WORK PORTFOLIO WORK & EXPERIENCE I’m a Solar Energy Engineer graduated from Faculty of Engineering Cairo University -Electric Power and Machines department where i worked on a graduation project in the field of the renewable energy, I worked in the field of the solar energy for more than a year and half in designing and implementation different types of PV systems. In this portfolio I’d like to present sample of my designs and implementations during my work experience. DESIGNS 1- 500kWp Grid-Tie Plant. 3D Sketch for 500kWp PV Plant

2. Single Line Diagram for 500kWp PV Plant 2- Small scale systems.

3.

4. IMPLEMENTATIONS

5. Grid-Tie Systems

6. Off-Grid Systems