Design of self-excited induction generators for wind applications

Vieira, Roger J.; Sharaf, A.Μ.; El-Gammal, Adel A. A.

doi:10.1109/ccece.2011.6030437

Cited by 9 publications

(3 citation statements)

References 8 publications

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“…Use of the permanent magnet synchronous generator (PMSG) which is directly driven by the turbine shaft has grown as a result of its lower manufacturing and maintenance costs compared to geared machines [3] with slip rings. Megawatt scale turbines are usually mounted on 90 -100 meter high towers with rotor blade length around 45 -50 meters.…”

Section: Introductionmentioning

confidence: 99%

Analytical model of a wind energy AC-DC-AC scheme

Vieira¹,

Sharaf²

2014

2014 IEEE 27th Canadian Conference on Electrical and Computer Engineering (CCECE)

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Megawatt scale wind turbines have become the unit of choice in commercial wind farms. Throughout the world wind energy penetration levels continue to rise with many countries having installed wind farm nameplate capacity in excess of ten percent of the national grid. This paper presents an analytical model of a two megawatt permanent magnet synchronous generator directly connected to the wind turbine rotor shaft. Directly connected permanent magnet generators with full scale AC-DC-AC controllers have found favor within the industry because of their lower maintenance and manufacturing costs and ease of grid integration. This paper will present a full analytical model of the wind turbine and the AC-DC-AC controller connected to a stiff utility grid along with their solutions in the time domain. Space vector modulation is utilized for gating the power electronics devices.

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Section: Introductionmentioning

confidence: 99%

Analytical model of a wind energy AC-DC-AC scheme

Vieira¹,

Sharaf²

2014

2014 IEEE 27th Canadian Conference on Electrical and Computer Engineering (CCECE)

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“…The main advantage of the induction generator is that it has a low cost, less maintenance and less weight. Due to the advantages of using a self-excited induction generator (SCIG) in converting the captured mechanical energy from WT made it suitable for use in small and medium size Wind Energy Conversion System (WECs) [3][4][5][6]. Due to the low cost of SCIG compared to other types of electric machines make it suitable for isolated load application of WECS.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of inverter fed from wind energy system

Amin

Tawfiq

Youssef

et al. 2016

2016 Eighteenth International Middle East Power Systems Conference (MEPCON)

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This paper introduces analysis for the performance of voltage source inverter fed from wind energy system. The inverter is used to control the voltage and frequency of an induction motor, so that its speed can be controlled. A selfexcited induction generator is used to convert mechanical energy to electrical energy, as it has many advantages in terms of ease of maintenance, self-protection against short circuits, and it is preferable in the isolated systems. Finally, simulation and experimental results for different operating points are displayed which are consistent with the expected results.

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“…Hence, the calculation of the capacitance value of the capacitor bank is very critical for the desired operation of the induction generator. Roger, Sharaf and Elgammal [2] present the analytical d-q model to obtain maximum wind energy capture. SEIG is modelled from the stator side with eigen value solution of the characteristic equations.…”

Section: Introductionmentioning

confidence: 99%

Determination of Excitation Capacitance of a Three Phase Self Excited Induction Generator

Kumari¹

2015

IJAREEIE

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ABSTRACT:The depletion of fossil fuels in the world, has given rise to the importance of non-conventional energy sources. Wind turbines and micro hydro generators with induction generators are considered as an alternative choice. Wind turbines with Self-excited Induction Generators (SEIGs) are increasingly being used to generate clean renewable energy. SEIGs are widely being used in isolated areas (rural areas) to generate electrical energy. Capacitor banks are used with a purpose to provide reactive power for its excitation. The nonlinearity of the magnetizing inductance and the varying rotor speeds necessitates the calculation of excitation capacitance required for voltage build up in a SEIG. This paper presents the various approaches for determining the excitation capacitance and evaluates the value of excitation capacitor for 220/380V, 12.4/7.2A, 4 pole, 50Hz induction machine through various approaches, to build-up voltage for isolated operation of a self-excited induction generator.

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Design of self-excited induction generators for wind applications

Cited by 9 publications

References 8 publications

Analytical model of a wind energy AC-DC-AC scheme

Analytical model of a wind energy AC-DC-AC scheme

Performance analysis of inverter fed from wind energy system

Determination of Excitation Capacitance of a Three Phase Self Excited Induction Generator

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