Improved Start-up Procedure of a Stand-Alone Wind System with Doubly-fed Induction Generator

Karakasis, Nektarios; Mademlis, Christos; Kioskeridis, I.

doi:10.1049/cp.2014.0486

Cited by 9 publications

(7 citation statements)

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“…However, high harmonics and frequency components were ignored in this method. Karakasis et al [16] developed an initialization procedure for a doubly-fed induction generator (DFIG) wind system. It gives the smooth initialization procedure along with the least power depletion from the energy stocking unit.…”

Section: Literature Workmentioning

confidence: 99%

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2020

IJRTE

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Solar and wind energy become auspicious electricity generation resources. Integrating these resources provide greater advantages, yet the power system quality is affected because of the varying nature of wind and solar energies that cause voltage problems, high harmonic distortion and less transient stability issues. To combat these problems, we proposed a five-legged harmonic remover based on time-invariant power converter, which initially converts alternative current (AC) obtained from the plant into direct current (DC) without any power loss using three-phase bridge rectifier. Then the high frequency component in DC is blocked by a nonlinear capacitor. Subsequently, the false current is removed using Fault current remover and sent to Diode based DC to AC converter for transforming DC into AC. Finally, the converted AC is passed over a bridge based c type filter to remove harmonics. By this way, the proposed system has achieved better power quality

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Section: Literature Workmentioning

confidence: 99%

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2020

IJRTE

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“…With regard to the topology, as presented by Karakasis et al (2014), andRaju Rudraraju et al (2017), the used excitation source is a battery. Several energy storage systems (ESS) are proposed in literature as additional source, like fuel cell (Mendis et al, 2015;Son et al, 2017) or supercapacitor (Haoran et al, 2015;Noureldeen and Youssef, 2019).…”

Section: Introductionmentioning

confidence: 99%

Start-up system design for small scale autonomous DFIG wind turbine

2021

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Autonomous wind systems are becoming promising since they provide new and innovative solutions to non-electrified areas. Start-up procedures for this wind systems requires some care to ensure electricity availability, to ovoid overloads and to reduce electrical and mechanical stress that affect lifetime of system components. In this context, this paper deals with an enhanced start-up system for small scale autonomous wind systems based on doubly fed induction generator. With the proposed start-up system, transient magnetizing current value is maintained under rated rotor current value to ensure smooth start-up process. Start-up algorithm guarantees the reach of a stable system functioning. Suggested topology, that includes a supercapacitor as a supplementary source, can be disconnected once wind system boots. Predictive controllers are used to ensure fast response. An energy management system is developed to monitor power flow. Considered model and control strategy of each system component, as well as start-up process are presented. Simulation results prove the effectiveness of the proposed start-up system.

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“…In Aktarujjaman et al, a restoration procedure is proposed for an islanded system composed of a DFIG wind energy system with a BESS connected to the DC link of the static converters. Other control approaches for the restoration process of systems with DFIG wind energy system and BESS have also been proposed . In Tang et al, a coordinated control strategy using optimal power tracing control, associated with conventional inertial control and pitch angle control, is proposed to improve the frequency regulation during the start‐up of power plant auxiliary systems of a power system with a DIG and wind generation units based on fully rated converter (FRC).…”

Section: Introductionmentioning

confidence: 99%

“…Other control approaches for the restoration process of systems with DFIG wind energy system and BESS have also been proposed. 17,18 In Tang et al, 19 a coordinated control strategy using optimal power tracing control, associated with conventional inertial control and pitch angle control, is proposed to improve the frequency regulation during the start-up of power plant auxiliary systems of a power system with a DIG and wind generation units based on fully rated converter (FRC). The control approach, controllers, and application of the control approach proposed in Tang et al 19 are significantly different from the ones proposed in this paper.…”

Section: Introductionmentioning

confidence: 99%

Auxiliary frequency controllers for the black start of stand-alone systems with predominance of wind generation

Bordignon

Oliveira

Lukasievicz

2018

Int Trans Electr Energ Syst

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Summary This paper proposes a novel control approach and supplementary controllers to support the black start of stand‐alone systems with predominance of wind generation based on fully rated converter. The main purpose of the proposed control approach is to provide auxiliary frequency control during the black start of stand‐alone systems. The proposed controllers, based on the signal of the system frequency error, are added to the grid‐side and generator‐side converters of the wind generation unit. One of the supplementary controllers, which act on the speed reference of the wind turbine, aims to extract kinetic energy from the wind turbine. The second supplementary controller aims to temporarily extract additional electrical energy from the DC link capacitor by acting on the typical control loops of the grid‐side converter. The energy extracted from the wind turbine and DC link capacitor is injected into the grid to quickly contribute to the frequency control during the black start of the system. The proposed controllers are coordinately designed by means of a genetic algorithm optimization technique which minimizes the deviations of the frequency and DC link voltage during the controller design process. The proposed operational and control approach has significantly improved the frequency nadir during the restoration process of the stand‐alone system.

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Improved Start-up Procedure of a Stand-Alone Wind System with Doubly-fed Induction Generator

Cited by 9 publications

References 0 publications

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Start-up system design for small scale autonomous DFIG wind turbine

Auxiliary frequency controllers for the black start of stand-alone systems with predominance of wind generation

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