Excitation capacitance requirements of three phase self excited induction generator for WindMill application

Kumar, Sachin; Pradhan, Subrat Kumar; Sahu, Rajesh Kumar

doi:10.1109/iceets.2013.6533410

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…The components of the magnetizing inductance (𝐿 𝑀 ) are 𝐿 𝑀𝑑 and 𝐿 𝑀𝑞 and can be given as ( 13) and (14).…”

Section: Cross-coupling Magnetizing Saturationmentioning

confidence: 99%

An accurate dynamical model of induction generator utilized in wind energy systems

Nasir

2022

IJEECS

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Due to the advantages of a self-excited induction generator (SEIG), it plays a main role in sources of renewable energy, such as wind turbines (WT). The regulation of terminal voltage and frequency is poor under variable rotor speed and load conditions at stand-alone operation mode. The generator terminal voltage depends on the excitation capacitance which can be controlled by a capacitor bank and static voltage compensator. The dynamical model of the machine is described by differential equations in D-Q axes transformations of the synchronously rotating frame. Many models of analysis are proposed in the literature. In those models, several approximations are used to simplify the process of calculations, such as neglecting the iron core resistance, stray load resistance, stator and rotor leakage reactance, and magnetic saturation. In this work, a comprehensive dynamic model of the SEIG-WT is performed to analyze the system performance under transient and steady-state conditions. This dynamic model considers the effect of all machine parameters variation. New analytical formulas are used for to accurate calculation of minimum and maximum values of excitation capacitance and generator rotor cut-off and maximum speed. The dynamic model results are partially compared with experimental results, and accurate agreement is shown.

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“…The components of the magnetizing inductance (𝐿 𝑀 ) are 𝐿 𝑀𝑑 and 𝐿 𝑀𝑞 and can be given as ( 13) and (14).…”

Section: Cross-coupling Magnetizing Saturationmentioning

confidence: 99%

An accurate dynamical model of induction generator utilized in wind energy systems

Nasir

2022

IJEECS

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“…Haque et al, (2012) presented the determination of excitation capacitance for building no-load voltage for off-grid SEIG operations [25]. Kumar et al, (2013) introduced a new, simple, and direct method of analyzing the complex impedance matrix of generators while being connected with an R-L load to predict the minimum capacitance value [26]. A.…”

Section: Literature Reviewmentioning

confidence: 99%

Assessment of Capacitance for Self-Excited Induction Generator in Sustaining Constant Air-Gap Voltage under Variable Speed and Load

Sharma

Kaur

2018

Energies

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The concept of a Self-Excited Induction Generator (SEIG) has introduced the concept of the placement of an induction machine for power generation in an isolated mode with external capacitance. The produced output voltage and generated frequency in an SEIG greatly depends on speed, load, and terminal capacitance. To maintain constant air-gap voltage against a varying speed and load, a corresponding supply of reactive power through capacitors is needed. The selection of the required capacitance while there is continuous variation of vital parameters needs a rigorous random-selection method. In this paper, an intelligent selection of suitable additional capacitance has been made by using the Fuzzy Logic Technique for a Three-Phase 5.0 HP SEIG. Additional capacitance in the range of 14.79-22.47 µF is compulsory under a varying load of 427−101 ohms, and additional capacitance in the range of 13.70-22.59 µF is essential for a varying speed of 1349 to 1672 RPM. With this promising result, we propose the implementation of this intelligent technique in place of analytical and standard methods for capacitance selection.

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Modeling of wind turbine-self excited induction generator system with pitch angle and excitation capacitance control

Nasir¹,

Daoud²

2020

Technologies and Materials for Renewable Energy, Environment and Sustainability: Tmrees20

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Excitation capacitance requirements of three phase self excited induction generator for WindMill application

Cited by 4 publications

References 10 publications

An accurate dynamical model of induction generator utilized in wind energy systems

An accurate dynamical model of induction generator utilized in wind energy systems

Assessment of Capacitance for Self-Excited Induction Generator in Sustaining Constant Air-Gap Voltage under Variable Speed and Load

Modeling of wind turbine-self excited induction generator system with pitch angle and excitation capacitance control

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