Abstract
In this paper, a comparative study between the two generator types with wind energy conversion system is proposed. The two generator types are doubly fed induction generators and permanent magnet synchronous generators. As in the wind turbine context, doubly fed induction generators and permanent magnet synchronous generators seem to be attractive solutions to be used to harness the wind energy. Wind turbine generators compatibility is anticipated in view of the stochastic nature of wind profile in the particular location in correlation with the Electro-Magnetic Torque profile of the wind generator which is acquired by simulating wind energy conversion system for the available wind speeds with high efficient generators. To validate the advantage of the proposed system, the torque profile of doubly fed induction generators and permanent magnet synchronous generators with an hourly average wind speed for 24-h time period is analysed. The real and reactive power of permanent magnet synchronous generators at wind speed of 13 m/s and permanent magnet synchronous generators increased pole pairs at wind speed of 13 m/s are also analysed. Furthermore, the power delivered by doubly fed induction generators and permanent magnet synchronous generators is analysed and compared. The comparison results demonstrate that the superiority of the permanent magnet synchronous generators over doubly fed induction generators and confirm its potential to extract the maximum energy from the wind.
Highlights
In the early time wind turbines have been installed at a commercial level in the 1980s, use of wind energy has its attention across different industries
Conventional Doubly fed induction generators (DFIG) shoots up more power to the grid only at specific higher wind speeds which may be utilized for improving grid power to certain limits
The steady state power of DFIG is lower than permanent magnet synchronous generators (PMSG) and is stable only for a small range of wind speeds
Summary
In the early time wind turbines have been installed at a commercial level in the 1980s, use of wind energy has its attention across different industries. There have been claims of reduction of the cost towards generation in comparison with the inception years. With such advancement in the study and implementation of the wind energy resources, there is less or no argument on the advantages[2] and applications[3] of the same. Sitharthan et al.[4] have a new automated control strategy to manage the wind power generation system to the load power supply. The main objective is to develop a fuzzy logic–based pitch angle control and to develop a static transfer switch to make power balance between the wind power generation system and the loads.
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