Power control strategies for grid connected converters applied to full-scale wind energy conversion systems during LVRT operation

Menezes-Silva, Rafael; Cupertino, Allan Fagner; Rezende, Guilherme M.; Sousa, Clodualdo Venício de; Mendes, Victor F.

doi:10.1016/j.epsr.2020.106279

Cited by 15 publications

(3 citation statements)

References 19 publications

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“…Unfortunately, the derived relationships (30) and ( 31) that cancel out the IPO are not consistent with the voltage support concept requiring 𝐢 𝐪 − and 𝒗 ⊥ − to be in phase and 𝐢 𝐩 − to be opposite to 𝒗 − .…”

Section: ) Control Of Imaginary-power Oscillationsmentioning

confidence: 81%

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A Comprehensive Approach to Flexible LVRT Strategies for Inverter-Based PPMs Enhancing Voltage-Support, Overcurrent Protection, and DC-Link Voltage Quality

Letaief,

Hamouda,

Belaid

et al. 2024

IEEE Access

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This paper focuses on enhancing the resilience of Power Park Modules (PPMs) connected to the grid via power electronic units under asymmetrical voltage sag conditions. We particularly address three interconnected constraints crucial for Low-Voltage Ride-Through (LVRT) capability of PPMs: grid voltage support, overcurrent protection and the DC-link voltage quality. Existing literature often overlooks the holistic consideration of these factors, prompting this study to introduce and compare three flexible LVRT strategies compliant with German grid codes. The proposed strategies use distinct approaches to reinforce the LVRT capability of the PPMs. Strategy A adopts a simple approach, utilizing static gain factors associated to the reactive current positive and negative sequences and the active current negative sequence (ACNS) injected into the grid. In contrast, Strategy B employs flexible gain factors to determine the appropriate reactive current. Moreover, an additional focus on minimizing the DC-bus voltage ripple is addressed via the injection of NSAC that completely eliminate the real power oscillations. Similarly, Strategy C calculates flexible gain factors associated to the injected reactive currents. In addition, it adopts an alternative approach to improve the DC-bus voltage quality by eliminating the ACNS limiting partially real and imaginary power oscillations. The three strategies are tested on an inverter-based PPM with 400 kW PV modules and a 200A storage system. The obtained results demonstrate the superior performance of Strategy C. Through the introduced approaches, authors feels that this research work is useful for developing the grid codes and improving the safety and reliability of grid-connected Power Systems.

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Section: ) Control Of Imaginary-power Oscillationsmentioning

confidence: 81%

“…In [30], Silva et.al. conducted a review of power control strategies applicable to inverter-based wind energy systems connected to the grid under voltage sag conditions.…”

mentioning

confidence: 99%

A Comprehensive Approach to Flexible LVRT Strategies for Inverter-Based PPMs Enhancing Voltage-Support, Overcurrent Protection, and DC-Link Voltage Quality

Letaief,

Hamouda,

Belaid

et al. 2024

IEEE Access

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“…At the same time, energy harvesting from the ambient environment has been confirmed a promising technology that converting sustainable energy into electricity (Cao et al, 2021a(Cao et al, , 2021bSun et al, 2019). Owing to the significant advantages of environmental protection, pollution-free, wide distribution, etc., wind energy is considered to the most widely used natural resource (Silva et al, 2020;Song et al, 2021;Vita et al, 2020;Wang et al, 2020a).…”

Section: Introductionmentioning

confidence: 99%

Modeling and experimental investigation of magnetically coupling bending-torsion piezoelectric energy harvester based on vortex-induced vibration

Sui

Zhang

Yang

et al. 2021

Journal of Intelligent Material Systems and Structures

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This paper presents a magnetically coupling bending-torsion piezoelectric energy harvester based on vortex-induced vibration from low-speed wind. The theoretical model of the energy harvester was formulated and validated by wind tunnel experiments. Numerical and experimental results showed that the power output and bandwidth of the proposed harvester are improved about 180% and 230% respectively compared with the nonmagnetic coupling harvester. Furthermore, the effects of cylinder, piezoelectric layer, load resistance, and magnetic nonlinear parameters on the harvester were investigated based on the distributed parameter model. The results showed that the length of cylinder hardly affect output power, but the diameter of cylinder presented complicated influences. The width of piezoelectric beam was negatively correlated with the torsion angle. With increasing the length of piezoelectric layer, an optimal wind velocity and load resistance can be obtained for the maximum output power. With decreasing of the distance between two magnets, the resonant bandwidth, the optimal power output, and torsion angle can be enhanced, respectively. Besides, the magnetic potential energy increased owing to the magnetically coupling, which led to the improvement of onset speed for the energy harvester. This study provides a guideline on improving the performance of bending-torsion vibration piezoelectric energy harvester.

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Distributed Solar Hybrid Generation Systems

Aktaş¹,

Kırçiçek²

2021

Solar Hybrid Systems

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Power control strategies for grid connected converters applied to full-scale wind energy conversion systems during LVRT operation

Cited by 15 publications

References 19 publications

A Comprehensive Approach to Flexible LVRT Strategies for Inverter-Based PPMs Enhancing Voltage-Support, Overcurrent Protection, and DC-Link Voltage Quality

A Comprehensive Approach to Flexible LVRT Strategies for Inverter-Based PPMs Enhancing Voltage-Support, Overcurrent Protection, and DC-Link Voltage Quality

Modeling and experimental investigation of magnetically coupling bending-torsion piezoelectric energy harvester based on vortex-induced vibration

Distributed Solar Hybrid Generation Systems

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