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        Simulation Study of a New Approach for Field Weakening Control of PMSM

        Elsayed, Mohamed Taha,Mahgoub, Osama Ahmed,Zaid, Sherif Ahmed The Korean Institute of Power Electronics 2012 JOURNAL OF POWER ELECTRONICS Vol.12 No.1

        In this paper, the different techniques for the field weakening, also known as constant power speed range (CPSR) operation, for permanent magnet synchronous motor (PMSM) will be introduced and analysed. Field weakening of PMSM, can be done using either vector control (VC) or conventional phase in advance (CPA). Implementation of these techniques depending on some features and constrains. Most of these features and constrains came from the motor parameters. One of these constrains is the motor inductance which determining whether the motor can be driven in the CPSR or not. A new approach for the field weakening will be discussed and to be verified to overcome this constrain. The new approach will be verified through both techniques VC and CPA.

      • KCI등재

        Simulation Study of a New Approach for Field Weakening Control of PMSM

        Mohamed Taha Elsayed,Osama Ahmed Mahgoub,Sherif Ahmed Zaid 전력전자학회 2012 JOURNAL OF POWER ELECTRONICS Vol.12 No.1

        In this paper, the different techniques for the field weakening, also known as constant power speed range (CPSR) operation, for permanent magnet synchronous motor (PMSM) will be introduced and analysed. Field weakening of PMSM, can be done using either vector control (VC) or conventional phase in advance (CPA). Implementation of these techniques depending on some features and constrains. Most of these features and constrains came from the motor parameters. One of these constrains is the motor inductance which determining whether the motor can be driven in the CPSR or not. A new approach for the field weakening will be discussed and to be verified to overcome this constrain. The new approach will be verified through both techniques VC and CPA.

      • KCI등재

        A Comprehensive Large-Wind-Turbine Emulator for Accurate Wind-Energy Harvest Evaluation

        Farag Wael A.,Hemeida Ahmed M.,Mahgoub Osama A. 대한전기학회 2024 Journal of Electrical Engineering & Technology Vol.19 No.3

        Robust modeling and emulation are required to support the design of ultra-wind turbines and analyze the efects of various factors, parameters, and environmental disturbances. The models that are constructed based on pure computational methods, in which the entire emulator is created in computational software are cost-efective, and their speed depends on the employed computation platform. However, these methods' practical signifcance and accuracy are considerably lower than that of the combined physical and computational platform methods. Therefore, A comprehensive 5 MW wind turbine emulator’s design and implementation are investigated thoroughly in this paper. A separately excited DC motor set under the control of a current-controlled drive forms the basis of the suggested emulation. The emulation algorithms that simulate the features of the 5 MW wind turbine are executed on a digital signal processor. These algorithms regulate the DC motor's current, which in turn regulates the torque. The results obtained demonstrate that the system was successful in accurately simulating the transient and steady-state characteristics of the 5 MW wind turbine. The emulator system was initially tested and validated with simulation results using MATLAB/Simulink code attached to both the FAST and TurbSim models. Furthermore, step and stochastic wind profles were used to experimentally verify and test it. Nearly all of the power that is available in the wind turbine system is successfully acquired using the maximum power point tracking technique, which is used to fnd the optimum operating point. The developed wind turbine emulator can be used to precisely assess energy harvesting by examining various mechanical and electrical input/output values of the Permanent Magnet Synchronous Generator vastly used in ultra-large wind turbine nacelles.

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