Optimal Power Reserve of a Wind Turbine System Participating in Primary Frequency Control

Bubshait, Abdullah; Simões, Marcelo Godoy

doi:10.3390/app8112022

Cited by 8 publications

(11 citation statements)

References 27 publications

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“…This approach consists in using the maximum available power of the WT and the de‐loading factor to determine the power reference for the de‐loaded operation ( P ref = P m,t,MPP k de , where k de is the de‐loading factor). The maximum available power of the WTG is determined based on the effective wind speed measured in real time and WT power profile, similar to the procedure used in Reference . There are different approaches to determine the effective wind speed to be employed in the calculation of the maximum available power of the WTG .…”

Section: Optimization Of the Wind Turbine Operating Pointmentioning

confidence: 99%

“…However, the stable operating point for the variable speed WT is also randomly determined in References . The WT operating point affects the dynamic and static characteristics of WTGs and, therefore, it may be optimized to improve the operation of WTGs …”

Section: Introductionmentioning

confidence: 99%

“…The operating point optimization of de‐loaded WTs has been addressed in References . The objective of the optimization proposed in Reference is to reduce the power losses in the generator stator and the conduction losses of the converter. In References , the operating point optimization aims to maximize the amount of kinetic energy stored in the WT.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, the wake effect is considered in References 20 and 21 to determine the WT operating point. A constant de‐loading factor is considered in References 18, 20, and 21 and the VSG control technique is not employed in References . Different from the approaches based on a constant de‐loading factor or a constant value for the power margin, the approach herein proposed considers a variable de‐loading factor defined by the system operator.…”

Section: Introductionmentioning

confidence: 99%

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Operating point optimization of wind turbine generators for provision of inertial response and frequency control

Tessaro¹,

Oliveira²

2020

Int Trans Electr Energ Syst

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Summary Inertial and frequency control approaches for wind turbine generators have proven to be effective in mitigating the frequency control and stability problems inherent to power systems and microgrids with high penetration levels of wind generation. This paper proposes an optimization formulation to determine the operating point of de‐loaded wind turbines in order to improve the mechanical dynamics of the wind turbine‐generator set. Such operating point optimization reduces the speed deviation magnitude and settling time of the wind turbine caused by the action of inertial and frequency control. The optimization approach is integrated into a combined inertial and frequency control approach for type‐4 wind turbine generators. The optimized control approach, based on the concept of virtual synchronous generator, may extend the inertial response and frequency control capabilities of type‐4 wind turbine generators, thus improving the transient and steady‐state frequency performance of high wind penetrated power systems.

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Section: Optimization Of the Wind Turbine Operating Pointmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Operating point optimization of wind turbine generators for provision of inertial response and frequency control

Tessaro¹,

Oliveira²

2020

Int Trans Electr Energ Syst

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“…For the normal operation of DFIG, in order to improve the power output efficiency of WT, the maximum power point tracking (MPPT) control strategy is adopted to achieve maximum capture of wind energy [17]. The rotor speed of the DFIG normally operates in the range of 0.7-1.2 p.u., and the safety range can reach 0.6-1.3 p.u.…”

Section: Normal Operation Of Dfigmentioning

confidence: 99%

Coordinated Secondary Frequency Regulation Strategy of Doubly-Fed Induction Generator and Electric Vehicle

Zhang

et al. 2019

Applied Sciences

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Wind turbines can participate in frequency regulation by controlling active power output, but the indeterminacy and volatility of wind power result in low reliability of frequency support. Therefore, as a kind of energy storage system, an electric vehicle is adopted to coordinate with wind turbines to regulate system frequency considering its large-scale development. First, based on the reasonable division of wind speed regions and operation point selection of pitch angle, the de-loading strategy of doubly-fed induction generator for reserve capacity under continuously varying wind speed is proposed. Then, through the combination of rotor speed and pitch angle control, frequency regulation model of a doubly-fed induction generator in whole wind speed range is established. Finally, taking into account the driving demand of electric vehicle owners, through the real-time allocation of system frequency regulation task based on frequency regulation capacity, the coordinated control strategy of doubly-fed induction generator and electric vehicle cluster for secondary frequency regulation is put forward. The simulation results show that the coordinated frequency regulation strategy based on real-time allocation can suppress frequency deviation effectively, and the regulation effect is better than the situations of wind turbine coordinating with the conventional unit or coordinating with electric vehicle cluster based on fixed allocation ratio. Appl. Sci. 2019, 9, 2815 2 of 24 down-regulation. Only DFIG in the de-loading state can participate in both system up-regulation and down-regulation.Constrained by operation limit of DFIG, the de-loading strategy for different wind speed (WS) region is different, and the combination of rotor speed and pitch angle control is commonly applied in the researches about DFIG de-loading. In the DFIG de-loading strategy of Ref.[5], the dividing of WS regions is proposed based on the operation characteristic of DFIG. However, the dividing method does not designate the starting point of low WS region; thus, the FR reserve capacity cannot reach the expected value due to the lower limit of rotor speed. In addition, the pitch angle control is only applied in high WS region, which will result in the lack of reserve capacity in median WS region due to the upper limit of rotor speed. In both reference.[6] and reference [7], the dividing of WS regions is used for appointing different de-loading mode or FR type to WTs under different WS in the wind power plant, which does not consider the smooth transition between control methods. In other words, most existing researches ignored the continuous change of rotor speed or pitch angle at the junctions of different WS regions and the probability of not reaching expected FR reserve capacity in each WS region. Therefore, it is necessary to establish a DFIG FR model, which is applicable under continuously varying WS in whole WS range.However, WTs underperform in providing FR service due to the volatility and indeterminacy of wind power. Therefore, it is dif...

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Improving real-time wind turbine deloading using advanced control strategy

Messasma,

Chouaba,

Sari

et al. 2024

Electr Eng

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Optimal Power Reserve of a Wind Turbine System Participating in Primary Frequency Control

Cited by 8 publications

References 27 publications

Operating point optimization of wind turbine generators for provision of inertial response and frequency control

Operating point optimization of wind turbine generators for provision of inertial response and frequency control

Coordinated Secondary Frequency Regulation Strategy of Doubly-Fed Induction Generator and Electric Vehicle

Improving real-time wind turbine deloading using advanced control strategy

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