Static compensator for maintaining voltage stability of wind farm integration to a distribution network

Lahaçani, Narimen Aouzellag; Aouzellag, Djamal; Mendil, Boubekeur

doi:10.1016/j.renene.2010.03.010

Cited by 28 publications

(22 citation statements)

References 4 publications

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“…However, from Equation (17) and Figure 3, we can see that pitch angle β or T m control, as explained in the next part, is one of the solutions to improve the voltage output of SCIG. …”

Section: Scig Modelmentioning

confidence: 99%

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Improving Transient Stability in a Grid-Connected Squirrel-Cage Induction Generator Wind Turbine System Using a Fuzzy Logic Controller

et al. 2015

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A common problem in wind power plants involves fixed-speed wind turbines. In fact, being equipped with a squirrel-cage induction generator (SCIG), they tend to drain a relevant amount of reactive power from the grid, potentially causing voltage drops and possible voltage instability. To improve SCIG power quality and transient stability, this paper investigates a new control strategy for pitch angle control based on proportional-integral (PI) controller and a fuzzy logic controller (FLC), considering both normal and fault ride-through (FRT) schemes. In the literature, often, the mechanical torque output is assumed constant for a specific wind speed. This might not be accurate, because the mechanical torque-speed typical of a wind turbine depends also on the power coefficient or pitch angle. In this paper, an analytic model of transient stability is proposed using the equivalent circuit of the SCIG and using the concepts of stable and unstable electrical-mechanical equilibrium. The method has been evaluated by comparing the results obtained by the analytic method with the dynamic simulation. The results show that the proposed hybrid controller is effective at smoothing the output power and complying with FRT requirements for SCIG in the power system.

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“…However, from Equation (17) and Figure 3, we can see that pitch angle β or T m control, as explained in the next part, is one of the solutions to improve the voltage output of SCIG. …”

Section: Scig Modelmentioning

confidence: 99%

“…In [16][17][18][19], the effect of FACTS devices is reported to regulate bus voltage and, therefore, to improve the rotor speed stability and voltage fault ride-through (FRT) of the fixed-speed wind generator during and after disturbances. However, solutions based on FACTS are considered expensive [20].…”

Section: Introductionmentioning

confidence: 99%

Improving Transient Stability in a Grid-Connected Squirrel-Cage Induction Generator Wind Turbine System Using a Fuzzy Logic Controller

et al. 2015

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“…The voltage stability margin of the system is improved with DSTATCOM using a voltage and power factor control strategy by Freitas et al (2002). Lahacani et al (2010) demonstrates the effect of wind speed variation on the voltage stability of the system and improvement with the application of DSTATCOM. Allagui et al (2014) showed that STATCOM contributes to controlling the grid voltage at PCC during fault conditions.…”

Section: Introductionmentioning

confidence: 99%

Improving voltage profile of load bus of wind generation system using DSTATCOM

Aggarwal¹,

Singh²,

Gupta³

2017

J. energy South. Afr.

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“…Therefore the voltage difference along the reactance between the STATCOM and the transmission network produces active and reactive power exchanges. A STATCOM is used for the dynamic compensation of power systems to provide voltage support [2][3][4][5][6]. The aspects of Thyristor Controlled Series Capacitor (TCSC) is used to schedule line power and damp system oscillation in a single machine Infinite Bus (SMIB) system was analyzed in [7].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Dynamic Stability of Multi-machine System with FACT Devices

Kant¹

2018

IJRASET

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This paper presents the enhancement of dynamic stability of Multi Machine with the help of FACT devices. If there is lack of damping torque in power system then it can lead to fluctuations and instability. For the solution to this problem, power system stabilizers (PSSs) have been widely used to improve power system stability. Where due to few drawbacks of the conventional PSSs, the need for finding a better substitution still remains. In this paper, the application of a Flexible AC Transmission(FACT Devices) is used to improve dynamic stability of a multi machine. Based upon the modal analysis and singular value analysis, the dynamic voltage stability analysis is carried out. The proposed approach has the advantages of the classical static voltage stability analysis and the modern multi-variable feedback control theory. The values and vectors are calculated for frequencies corresponding to the critical system modes. This proposed method is also applicable to very large systems.

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Static compensator for maintaining voltage stability of wind farm integration to a distribution network

Cited by 28 publications

References 4 publications

Improving Transient Stability in a Grid-Connected Squirrel-Cage Induction Generator Wind Turbine System Using a Fuzzy Logic Controller

Improving Transient Stability in a Grid-Connected Squirrel-Cage Induction Generator Wind Turbine System Using a Fuzzy Logic Controller

Improving voltage profile of load bus of wind generation system using DSTATCOM

Enhancement of Dynamic Stability of Multi-machine System with FACT Devices

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