Power Smoothing of a Variable-Speed Wind Turbine Generator in Association With the Rotor-Speed-Dependent Gain

Kim, Yeon-Hee; Kang, Moses; Muljadi, Eduard; Park, Jung–Wook; Kang, Yong Cheol

doi:10.1109/tste.2016.2637907

Cited by 46 publications

(23 citation statements)

References 21 publications

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“…In this paper, the model of supercapacitor is referred in [27] and [28]. Since V dc is controlled as a constant before the disturbance, the squared change of DC voltage can be simply determined by the released energy from supercapacitor, as in (29).…”

Section: B Coordinated Actions With Supercapacitormentioning

confidence: 99%

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Electro-mechanical Modeling of Wind Turbine and Energy Storage Systems with Enhanced Inertial Response

Yan

Xiao

Gao

et al. 2020

Journal of Modern Power Systems and Clean Energy

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In this paper, a coordinated control scheme for wind turbine generator (WTG) and supercapacitor energy storage system (ESS) is proposed for temporary frequency supports. Inertial control is designed by using generator torque limit considering the security of WTG system, while ESS releases its energy to compensate the sudden active power deficit during the recovery process of turbine rotor. WTG is modeled using the fatigue, aerodynamic, structure, turbulence (FAST) code, which identifies the mechanical loadings of the turbine and addresses electro-mechanical interactions in the wind energy system. A damping controller is augmented to the inertial control to suppress severe mechanical oscillations in the shaft and tower of the turbine during frequency supports. Furthermore, the result of small-signal stability analysis shows that the WTG-ESS tends to improve the stability of the whole multi-energy power grid. The major contributions of this paper will be validated by utilizing the proposed control method that combines the grid support capability and maintaining the integrity of structural design of the turbine for normal operations.

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Section: B Coordinated Actions With Supercapacitormentioning

confidence: 99%

“…8, WPP is connected at bus 14 of the modified IEEE 14-bus test system. The model of IEEE 14-bus test system is based on [29] and [30] and simulated in MATLAB/Simulink. Key parameters of the test system are listed in Table A Ⅳ in Appendix A.…”

Section: A Simulation Setupsmentioning

confidence: 99%

Electro-mechanical Modeling of Wind Turbine and Energy Storage Systems with Enhanced Inertial Response

Yan

Xiao

Gao

et al. 2020

Journal of Modern Power Systems and Clean Energy

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“…Several control schemes for smoothing the output power of a WTG by controlling the pitch angle have been reported [5][6][7][8][9][10]. However, these methods substantially decrease the captured power from the incoming wind power, and control schemes that entail releasing the kinetic energy stored in the rotating masses of WTG blade and gearbox have been proposed [11][12][13]. Therefore, a WTG can temporarily absorb or release electric energy to the rotating masses and contribute to the system frequency stabilization.…”

Section: Introductionmentioning

confidence: 99%

Coordinated Frequency Stabilization of Wind Turbine Generators and Energy Storage in Microgrids with High Wind Power Penetration

et al. 2019

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This paper proposes a coordinated control scheme for wind turbine generators (WTGs) and energy storage in microgrids with high wind power penetration. The proposed scheme aimed to reduce the system frequency deviation caused by variations in wind power and loads. To stabilize the frequency, the WTG and energy storage system (ESS) are used for kinetic energy generation and electrical energy storage, respectively. When the WTG contributes excessively to frequency stabilization in the microgrid with a high wind power penetration, the system frequency may fluctuate considerably. Thus, it is necessary to adjust the contribution of a WTG and to share it with other sources. To achieve our objective, we proposed a coordinated control scheme between the WTG and ESS that shares their releasable and absorbable energies. The coordinated control consistently calculated the releasable and absorbable energies of the WTG and ESS and determined weight factors related to the energy ratios. Accordingly, the weight factors improved the ability of providing supporting frequency stabilization of the WTG and ESS by increasing the stored energy utilization. The performance of the scheme was investigated using MATLAB Simulink Electrical. The results show that the proposed coordinated control successfully stabilized the system frequency by calculating the appropriate contributions required from the WTG and ESS.

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“…The large inertia of WECS could be more effective than a dc-link capacitor. A power-smoothing scheme with rotor-speed-dependent gain has been proposed in [17] to take advantage of rotor inertia. However, the rotor speed will vary with the storage/release of rotational kinetic energy, which is closely related to the safe operation of WECS.…”

Section: Introductionmentioning

confidence: 99%

Fluctuating characteristic and power smoothing strategies of WECS

Jia

Cai

Zheng

2018

IET Generation, Transmission & Distribution

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Power Smoothing of a Variable-Speed Wind Turbine Generator in Association With the Rotor-Speed-Dependent Gain

Cited by 46 publications

References 21 publications

Electro-mechanical Modeling of Wind Turbine and Energy Storage Systems with Enhanced Inertial Response

Electro-mechanical Modeling of Wind Turbine and Energy Storage Systems with Enhanced Inertial Response

Coordinated Frequency Stabilization of Wind Turbine Generators and Energy Storage in Microgrids with High Wind Power Penetration

Fluctuating characteristic and power smoothing strategies of WECS

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