Journal ArticleDOI
Terminal voltage regulation characteristics by static var compensator for a three-phase self-excited induction generator
TLDR
In this paper, a three-phase self-excited induction generator (SEIG) with squirrel-cage rotor is presented along with its operating performance evaluations for small-scale clean renewable and alternative energy utilizations.Abstract:
In this paper, the practical impedance approach steady-state analysis in the frequency domain for the three-phase self-excited induction generator (SEIG) with squirrel-cage rotor is presented along with its operating performance evaluations. The three-phase SEIG is driven by a variable-speed prime mover(VSPM) in addition to a constant-speed prime mover (CSPM) such as a wind turbine and a micro gas turbine for clean alternative renewable energy in rural areas. The basic steady-state characteristics of the VSPM are considered in the three-phase SEIG approximate equivalent circuit and the operating performance of the three-phase SEIG coupled with a VSPM and/or a CSPM are evaluated and discussed online under the conditions related to the speed changes of the prime mover and the electrical inductive load power variations with simple computation processing procedures. A three-phase SEIG prototype setup with a VSPM is implemented for small-scale clean renewable and alternative energy utilizations. The experimental performance results give good agreement with those obtained from the simulation results. Furthermore, a proportional-integral (PI) closed-loop feedback voltage regulation of the three-phase SEIG driven by the VSPM on the basis of the static var compensator (SVC) composed of the thyristor phase-controlled reactor in parallel with the thyristor switched capacitor and the fixed-excitation capacitor bank is designed and considered for the wind generation as a renewable power conditioner. The simulation analysis and experimental results obtained from the three-phase SEIG with SVC for its voltage regulation prove the practical effectiveness of the additional SVC with the PI-controller-based feedback loop in steady-state operation in terms of high performance with low cost.read more
Citations
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Proceedings ArticleDOI
Asynchronous generator model for autonomous operating mode
TL;DR: The paper deals with the modeling of a three-phase self-excited induction generator and its steady state analysis using space vector formalism and the startup phenomenon and the problematic which appear for this working mode are presented.
Proceedings ArticleDOI
Bibliography of FACTS: 2004-2005 part II IEEE working group report
TL;DR: In this paper, a bibliography of flexible AC transmission systems (FACTS) for the years 2004 and 2005 is presented, where the authors present a detailed discussion of the characteristics of each system.
Proceedings Article
Terminal voltage control of stand alone induction generator using controlled shunt capacitor called SVC MERS
TL;DR: In this paper, the authors proposed a controlled shunt capacitor called static var compensation magnetic energy recovery switch (SVC MERS) for self-excited induction generator terminal voltage control.
Book ChapterDOI
45 – Energy Sources
Alireza Khaligh,Omer C. Onar +1 more
TL;DR: In this paper, it is estimated that there is 57 ZJ of oil reserves on Earth and this amount includes the available but not necessarily recoverable reserves available in oceans, which can be categorized in three major methods; ocean wave power, ocean tidal power and ocean thermal power.
Book ChapterDOI
Self-excited Induction Generator in Remote Site
TL;DR: This chapter proposes a method of detection of the generator operating points and the control procedures which makes it possible to maintain quasi constant the frequency values and uses a Thyristor Controlled Reactor to regulate the reactive power.
References
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Static var compensator models for power flow and dynamic performance simulation
C.W. Taylor,G. Scott,A. Hammad +2 more
TL;DR: In this article, the static var compensator is now mature technology that is widely used for transmission applications and a standardization of basic models is recommended, and is recommended in this paper.
Journal ArticleDOI
The dynamic characteristics of an isolated self-excited induction generator driven by a wind turbine
TL;DR: In this article, the effect of magnetizing inductance on self-excitation was discussed and the loading analysis of an isolated induction generator, and how the operating frequency and generated voltage were affected by the change in operating slip value for regulated and unregulated rotor speed.
Journal ArticleDOI
Capacitance requirement for isolated self-excited induction generator
TL;DR: In this article, the authors derived the minimum capacitance required for self-excitation and the output frequencies under no-load, inductive and resistive loads, and showed that there is a speed threshold below which no excitation is possible no matter what the capacitance value.
Journal ArticleDOI
Static Exciters for Induction Generators
TL;DR: In this article, a simple exciter scheme based on using a static reactive power generator implemented with fixed capacitors and thyristor controlled inductors is proposed. But the feasibility of the proposed scheme with naturally commutated thyristors is verified by measurements on a test setup employing a standard 15-hp induction motor.
Journal ArticleDOI
Voltage-frequency control of a self-excited induction generator
E. Suarez,G. Bortolotto +1 more
TL;DR: In this article, a new strategy for controlling voltage and frequency of a self-excited induction generator (SEIG) is presented, which operates in the linear region of the core magnetizing curve, so that efficiency and performance are upgraded.