Heba_Ahmed123

Heba Ahmed Mahmoud

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Faculty of industrial education

Address: Faculty of Industrial Education-Sohag University-Egypt

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Publications Which contain the keyword: Wind Energy

Design of State Feedback Current Controller for Fast Synchronization of DFIG in Wind Power Generation Systems

2019-07-24 15:31:55 Keywords Doubly-fed induction generator, Wind Energy, Dynamic performance,
Design of State Feedback Current Controller for Fast Synchronization of DFIG in Wind Power Generation Systems
Doubly-fed induction generators (DFIGs) are widely used in wind energy conversion systems. The dynamic features of DFIGs make it important to focus on designing high-performance control schemes. However, the dynamic characteristics of such generators depend on nonlinear parameters, such as stator flux, stator current, and rotor current, which increase the overall system complexity. In addition, the DFIG Wind Energy Conversion ... Read more

Dynamic Modeling of Wind Turbines Based on Estimated Wind Speed under Turbulent Conditions

2019-07-24 15:34:37 Keywords Wind Energy, wind simulator, Wind Turbines, Dynamic performance,
Dynamic Modeling of Wind Turbines Based on Estimated Wind Speed under Turbulent Conditions
Large-scale wind turbines with a large blade radius rotates under fluctuating conditions depending on the blade position. The wind speed is maximum in the highest point when the blade in the upward position and minimum in the lowest point when the blade in the downward position. The spatial distribution of wind speed, which is known as the wind shear, leads ... Read more

Utilization of Wind Energy in Fast Developing High-Rise Buildings: A Case Study of the Pearl River Tower, Guangzhou, China

2018-10-19 18:38:05 Keywords Energy Demand, High-Rise Buildings, Renewable Energy, Wind Energy,
Utilization of Wind Energy in Fast Developing High-Rise Buildings: A Case Study of the Pearl River Tower, Guangzhou, China
ABSTRACT: This paper is aimed at estimating the possible energy generation by wind in high rise buildings. The 71-strory, 310m height Pearl River Tower in Guangzhou, China is selected as a case study. The tower being designed as office building for Chinese National Tobacco Company (CNTC) headquarters has a total gross area of 210,000 m2 of which 40,000 m2 for ... Read more

Advanced protection schemes for DFIG based wind turbines during the grid faults

2018-10-19 23:44:43 Keywords Protection Schemes, DFIG, Wind Turbines, Wind Energy,
Advanced protection schemes for DFIG based wind turbines during the grid faults
Negative impacts of the grid faults in the Doubly Fed Induction Generators (DFIGs) based wind turbines systems include the stator and rotor over currents, DC-link over voltage, electromagnetic torque oscillations, active and reactive power fluctuations at the grid connection point, potentially leading to destabilization of the power system network. For eliminating of the negative impacts, thus enhances the DFIGs based ... Read more

Improved Protection Schemes for DFIG Based Wind Turbines during the Grid Faults

2018-09-25 18:22:18 Keywords Wind Energy, Wind Turbines, DF,
Improved Protection Schemes for DFIG Based Wind Turbines during the Grid Faults
Abstract: There are many negative impacts of the grid faults in Doubly Fed Induction Generators (DFIG) based wind turbines such as stator and rotor over currents, DC-link over voltage, electromagnetic torque oscillations, active and reactive power fluctuations at the grid connection point. Negative impacts of the grid faults have potentially led to destabilization of the power system network. Eliminating the ... Read more

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