Analysis of Wind Generator Operations under Unbalanced Voltage Dips in the Light of the Spanish Grid Code

León-Martínez, Vicente; Montañana-Romeu, Joaquín

doi:10.3390/en4081148

Cited by 6 publications

(3 citation statements)

References 7 publications

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“…Wind energy is captured using a turbine and is converted to electric power using a generator. Currently, doubly fed induction generators and permanent magnet synchronous generators are more popular [21]- [24]. The main challenge in wind energy system is the storage of power in batteries due to the poor life time and long charging hours.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Control Strategy for Matrix Converter Fed Wind Energy Conversion System

Jamna¹,

Venkatesan²

2016

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In this paper, a hybrid control strategy for a matrix converter fed wind energy conversion system is presented. Since the wind speed may vary, output parameters like power, frequency and voltage may fluctuate. Hence it is necessary to design a system that regulates output parameters, such as voltage and frequency, and thereby provides a constant voltage and frequency output from the wind energy conversion system. Matrix converter is used in the proposed solution as the main power conditioner as a more efficient alternative when compared to traditional back-back converter structure. To control the output voltage, a vector modulation based refined control structure is used. A power tracker is included to maximize the mechanical output power of the turbine. Over current protection and clamp circuit input protection have been introduced to protect the system from over current. It reduces the spikes generated at the output of the converter. The designed system is capable of supplying an output voltage of constant frequency and amplitude within the expected ranges of input during the operation. The matrix converter control using direct modulation method, modified Venturini modulation method and vector modulation method was simulated, the results were compared and it was inferred that vector modulation method was superior to the other two methods. With the proposed technique, voltage transfer ratio and harmonic profile have been improved compared to the other two modulation techniques. The behaviour of the system is corroborated by MATLAB Simulink, and hardware is realized using an FPGA controller. Experimental results are found to be matching with the simulation results.

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Section: Introductionmentioning

confidence: 99%

Hybrid Control Strategy for Matrix Converter Fed Wind Energy Conversion System

Jamna¹,

Venkatesan²

2016

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“…Wind power is considered as one of the most promising renewable energy sources after its rapid expansion all over the World during the last decades [1,2].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Transient Phenomena Due to a Direct Lightning Strike on a Wind Energy System

Rodrigues¹,

Mendes²,

Catalão

2012

Energies

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This paper is concerned with the protection of wind energy systems against the direct effects of lightning. As wind power generation undergoes rapid growth, lightning damages involving wind turbines have come to be regarded as a serious problem. Nevertheless, very few studies exist yet in Portugal regarding lightning protection of wind energy systems using numerical codes. A new case study is presented in this paper, based on a wind turbine with an interconnecting transformer, for the analysis of transient phenomena due to a direct lightning strike to the blade. Comprehensive simulation results are provided by using models of the Restructured Version of the Electro-Magnetic Transients Program (EMTP), and conclusions are duly drawn.

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“…However the large wind power penetration faces a variety of technical problems and challenges such as frequency and voltage regulation, power quality issues, electromagnetic interference, etc. [2][3][4][5], which should be addressed in order to further increase the wind power penetration.…”

Section: Introductionmentioning

confidence: 99%

Sliding Mode Control Strategy for Wind Turbine Power Maximization

Barambones

2012

Energies

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The efficiency of the wind power conversions systems can be greatly improved using an appropriate control algorithm. In this work, a sliding mode control for variable speed wind turbine that incorporates a doubly fed induction generator is described. The electrical system incorporates a wound rotor induction machine with back-to-back three phase power converter bridges between its rotor and the grid. In the presented design the so-called vector control theory is applied, in order to simplify the electrical equations. The proposed control scheme uses stator flux-oriented vector control for the rotor side converter bridge control and grid voltage vector control for the grid side converter bridge control. The stability analysis of the proposed sliding mode controller under disturbances and parameter uncertainties is provided using the Lyapunov stability theory. Finally simulated results show, on the one hand, that the proposed controller provides high-performance dynamic characteristics, and on the other hand, that this scheme is robust with respect to the uncertainties that usually appear in the real systems.

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Analysis of Wind Generator Operations under Unbalanced Voltage Dips in the Light of the Spanish Grid Code

Cited by 6 publications

References 7 publications

Hybrid Control Strategy for Matrix Converter Fed Wind Energy Conversion System

Hybrid Control Strategy for Matrix Converter Fed Wind Energy Conversion System

Analysis of Transient Phenomena Due to a Direct Lightning Strike on a Wind Energy System

Sliding Mode Control Strategy for Wind Turbine Power Maximization

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