Output Power Smoothing and Voltage Regulation of a Fixed Speed Wind Generator in the Partial Load Region Using STATCOM and a Pitch Angle Controller

Naik, Kanasottu Anil; Gupta, C. P.

doi:10.3390/en11010058

Cited by 12 publications

(10 citation statements)

References 29 publications

(38 reference statements)

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“…The static compensator (STATCOM) is a member of the family of flexible AC transmission system devices, which have been adopted successfully in WPPs to boost transient voltage and thus protect systems from failure [54,77,78]. The major aim of coupling STATCOM to a wind farm is to mitigate the transient stability and to offer fault ride-through capability of the system [79]. Although flexible alternating current transmission system (FACTS) are becoming obsolete, STATCOMs are increasingly applied, especially at the distribution level.…”

Section: Methods For Mitigation and Control Of Transients In Wind Turmentioning

confidence: 99%

Transient Faults in Wind Energy Conversion Systems: Analysis, Modelling Methodologies and Remedies

et al. 2018

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This paper presents an in-depth review of classical and state-of-the-art models for analysing the transient stability in wind energy conversion systems. Various transient simulation models for a number of wind turbine generator (WTG) configurations are introduced, under different disturbances. The mitigation is achieved, by manipulating the generator speed and power electronics control, whereas the protection is implemented using conventional, intelligent or digital relays for the safety of sensitive components, in case of transient fault occurrence. The various control systems in WECS are basically employed to transform and regulate the varying frequency, owing to the stochastic nature of wind speed, to the standard 50-Hz or 60-Hz frequency for coupling to an existing electrical utility grid. It has been observed that the control and protection schemes in wind energy systems are concurrently applied. Transient faults in WECSs are a dominant power quality problem especially in the doubly-fed induction generator (DFIG), and often classified as overcurrent or overvoltage transients. These transients are measured using the transient stability index and analysed using the EMTDC/PSCAD software. In addition, the inertia of the rotating masses of wind turbine generators is often characterized by a transient torque, which generates oscillations in power systems.

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Section: Methods For Mitigation and Control Of Transients In Wind Turmentioning

confidence: 99%

Transient Faults in Wind Energy Conversion Systems: Analysis, Modelling Methodologies and Remedies

et al. 2018

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“…However, the main drawback of wind turbines or wind farms is that they bring a negative impact on the connected grid because the output power fluctuates due to the natural variation of wind speed [2]. Until now, many useful schemes were proposed to reduce the fluctuation in the output power of a wind turbine [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. These schemes can be generally divided into two groups, energy storage system utilization [2][3][8][9][10][11][12][13] and storage energy system misutilization [2,[4][5][6][7].…”

Section: Imentioning

confidence: 99%

Smoothing the Power Output of a Wind Turbine Group with a Compensation Strategy of Power Variation

Chung

2021

Eng. Technol. Appl. Sci. Res.

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This paper proposes a new scheme to reduce the output power variation range of a wind turbine group without an energy storage system. This proposal is based on the active power compensation principle for each wind turbine. In this research, the wind turbine operates in the active power control mode. The reference active power is calculated in such a way that it compensates for the difference between the average output power and the actual output power. To verify and evaluate the proposed method, we simulated a group of two 1.5MW-wind turbines in the Simulink environment of MATLAB. Simulation results were compared to the ones of a wind turbine group without any smoothing scheme and the ones of the same group with the Exponential Moving Average method. From this comparison, we can conclude that with the proposed method, the actual output power of the wind turbine group becomes smoother than that of the wind turbine group without any smoothing scheme. Moreover, the performance of the wind turbine group with the proposed method is better than that of the wind turbine group with the Exponential Moving Average method.

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“…In fact, the sensitivity analysis of power production in relation to the pitch angle and other parameters needs complex inference strategies, such as ANFIS (Adaptive Neuro-Fuzzy Inference System), as is shown in the recent literature [25][26][27][28]. There are also data-driven approaches to detect or somehow balance pitch angle faults alone [29,30] or in combination with other parameters [31,32].…”

Section: State Of the Artmentioning

confidence: 99%

Pitch Angle Misalignment Correction Based on Benchmarking and Laser Scanner Measurement in Wind Farms

Elosegui¹,

Egana²,

Ulazia

et al. 2018

Energies

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In addition to human error, manufacturing tolerances for blades and hubs cause pitch angle misalignment in wind turbines. As a consequence, a significant number of turbines used by existing wind farms experience power production loss and a reduced turbine lifetime. Existing techniques, such as photometric technology and laser-based methods, have been used in the wind industry for on-field pitch measurements. However, in some cases, regular techniques have difficulty achieving good and accurate measurements of pitch angle settings, resulting in pitch angle errors that require cost-effective correction on wind farms. Here, the authors present a novel patented method based on laser scanner measurements. The authors applied this new method and achieved successful improvements in the Annual Energy Production of various wind farms. This technique is a benchmarking-based approach for pitch angle calibration. Two case studies are introduced to demonstrate the effectiveness of the pitch angle calibration method to yield Annual Energy Production increase.

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Output Power Smoothing and Voltage Regulation of a Fixed Speed Wind Generator in the Partial Load Region Using STATCOM and a Pitch Angle Controller

Cited by 12 publications

References 29 publications

Transient Faults in Wind Energy Conversion Systems: Analysis, Modelling Methodologies and Remedies

Transient Faults in Wind Energy Conversion Systems: Analysis, Modelling Methodologies and Remedies

Smoothing the Power Output of a Wind Turbine Group with a Compensation Strategy of Power Variation

Pitch Angle Misalignment Correction Based on Benchmarking and Laser Scanner Measurement in Wind Farms

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