Analysis and Control of the Inductorless Boost Rectifier for Small-Power Wind-Energy Converters

Lumbreras, Carlos; Guerrero, Juan Manuel; Fernández, Daniel; Reigosa, David; Gonzalez-Moral, Cristina; Briz, Fernando

doi:10.1109/tia.2018.2869099

Cited by 12 publications

(8 citation statements)

References 28 publications

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“…The increase of wind power installation also promotes the development of wind power converter technologies [3], [4], [5], [6], [7]. Wind power converters are critical equipment in wind power conversion systems, transferring power from the wind generator to the grid [3].…”

Section: Introductionmentioning

confidence: 99%

A Unidirectional Cascaded High-Power Wind Converter With Reduced Number of Active Devices

et al. 2023

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For large offshore wind turbines, cascaded H-bridge wind power converters can raise the wind generator voltage to a medium voltage level such as 10kV, which is favored for reducing the generator current, mitigating issues such as cable twisting in low-voltage, high-current configurations. In order to reduce the number of required active power devices, this paper presents a unidirectional-power-flow medium voltage high-power cascaded wind power converter. The proposed topology uses a unidirectional cascaded H-bridge rectifier as the generator-side converter to connect the medium-voltage permanent synchronous wind generator. The proposed topology reduces the number of active power devices and their associated gate driver circuits, control, etc. A zero deadtime modulation method is also presented for the generator side converter, which can eliminate the deadtime and improve the voltage and current waveform quality. Furthermore, the proposed topology will not increase the converter power losses as analyzed in the paper, or sacrifice dynamic control performance. Simulation and experiment results are presented, which validate the proposed unidirectional power conversion system.INDEX TERMS Cascaded H-bridge, unidirectional power flow, wind power converter, zero deadtime modulation.

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Section: Introductionmentioning

confidence: 99%

A Unidirectional Cascaded High-Power Wind Converter With Reduced Number of Active Devices

et al. 2023

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Section: Introductionmentioning

confidence: 99%

“…In recent years, wind energy has been the fastest growing among renewable energy sources [1]. In particular, micro and small wind turbines are an attractive solution for distributed generation in urban areas, self-energy production, and microgrids [1][2][3][4][5][6][7][8][9][10][11]. Among these, variable-speed and fixed-pitch (VSFP) wind turbines are the most common because this configuration reduces the complexity and cost of the system [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…However, very few studies have addressed control at high wind speeds of VSFP WECS with a PMSG, and a three-phase inverter-based back-to-back converter, in case the soft stall method is adopted. This solution, despite its higher costs, is characterised by higher efficiency ( [1,[22][23][24][25]) in comparison with the most commonly used topology for small-scale WECS, based on a 3-phase diode rectifier, a DC/DC converter, and a grid-connected three-phase inverter [1,6,11,13].…”

Section: Introductionmentioning

confidence: 99%

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Variable Structure Control of a Small Ducted Wind Turbine in the Whole Wind Speed Range Using a Luenberger Observer

et al. 2020

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This paper proposes a new variable structure control scheme for a variable-speed, fixed-pitch ducted wind turbine, equipped with an annular, brushless permanent-magnet synchronous generator, considering a back-to-back power converter topology. The purpose of this control scheme is to maximise the aerodynamic power over the entire wind speed range, considering the mechanical safety limits of the ducted wind turbine. The ideal power characteristics are achieved with the design of control laws aimed at performing the maximum power point tracking control in the low wind speeds region, and the constant speed, power, and torque control in the high wind speed region. The designed control laws utilize a Luenberger observer for the estimation of the aerodynamic torque and a shallow neural network for wind speed estimation. The effectiveness of the proposed method was verified through tests in a laboratory setup. Moreover, a comparison with other solutions from the literature allowed us to better evaluate the performances achieved and to highlight the originality of the proposed control scheme.

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“…Various power converter topologies have been proposed in the literature for the variable-speed permanent magnet synchronous generator based WECS. With the advantages of low cost, high reliability, and simple control algorithms, a simple configuration integrating a diode rectifier, a DC chopper, and a voltage source inverter (VSI) is widely adopted [2]. However, with the increasing power level of the WECS, the power switch device of a DC chopper in the topology must endure high instantaneous voltage and current stress [3].…”

Section: Introductionmentioning

confidence: 99%

Frame-Angle Controlled Wavelet Modulated Inverter and Self-Recurrent Wavelet Neural Network-Based Maximum Power Point Tracking for Wind Energy Conversion System

et al. 2020

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In this work, a new control methodology is proposed for Type-IV wind energy conversion system (WECS) using a self-recurrent wavelet neural network (SRWNN) control with a Vienna rectifier as the machine side converter (MSC). A SRWNN combines excellent dynamic properties of recurrent neural networks and the fast convergence speed of wavelet neural network. Hidden neurons of SRWNN contains local self-feedback loops, which provide the memory feature and the necessary information of past values of the signals, allowing it to track maximum power from WECS under varying wind speeds. The Vienna rectifier allows unity power factor operation to increase electrical efficiency. Frame angle-controlled wavelet modulation is proposed for the grid side converter (GSC). Wavelet modulated inverter produces output voltage fundamental components with higher magnitudes than those obtained from the pulse width modulated inverters. The non-linear load compensation and power quality enhancement are achieved by executing frame angle control for WM inverter. The overall system is modeled, and performance is verified in MATLAB Simulink. The hardware prototype is developed, and the switching pulses for the rectifier and inverter are generated using dSPACE1104 controller. The results prove that the system provides low harmonic content and high magnitude of the fundamental current component at the machine and grid sides and ensures maximum power operation at various wind speeds. INDEX TERMS Wind Energy Conversion System (WECS), Wavelet modulation (WM), Maximum power point tracking (MPPT), Self recurrent wavelet neural network (SRWNN)

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Analysis and Control of the Inductorless Boost Rectifier for Small-Power Wind-Energy Converters

Cited by 12 publications

References 28 publications

A Unidirectional Cascaded High-Power Wind Converter With Reduced Number of Active Devices

A Unidirectional Cascaded High-Power Wind Converter With Reduced Number of Active Devices

Variable Structure Control of a Small Ducted Wind Turbine in the Whole Wind Speed Range Using a Luenberger Observer

Frame-Angle Controlled Wavelet Modulated Inverter and Self-Recurrent Wavelet Neural Network-Based Maximum Power Point Tracking for Wind Energy Conversion System

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