Model Predictive Current Control of Grid-Connected Neutral-Point-Clamped Converters to Meet Low-Voltage Ride-Through Requirements

Calle-Prado, A.; Alepuz, Salvador; Bordonau, J.; Nicolás-Apruzzese, Joan; Cortés, Patricio; Rodríguez, José

doi:10.1109/tie.2014.2364459

Cited by 181 publications

(100 citation statements)

References 44 publications

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“…represents the initial value of capacitor voltages, and Cx i ( 1,2) x  represents the current flowing through the capacitors.…”

Section: The Proposed Fs-mpc Methods With Dc-link Voltages Fluctumentioning

confidence: 99%

“…The three-level neutral point clamped converter (NPC) has been widely applied in industries over the past decades, such as electrical drives [1], high-voltage direct current (HVDC) transmission systems [2], and electric railway traction system [3], etc. In this topology, the bidirectional power flow is achieved based on charging and discharging of the DC-link capacitors [4].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Finite-Set Model Predictive Control for Eight-Switch Three-Phase NPC Converter with DC-Link Voltages Fluctuation Suppression

Wang¹,

Zhao²

2018

Advances in Intelligent Systems Research

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“…represents the initial value of capacitor voltages, and Cx i ( 1,2) x  represents the current flowing through the capacitors.…”

Section: The Proposed Fs-mpc Methods With Dc-link Voltages Fluctumentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Finite-Set Model Predictive Control for Eight-Switch Three-Phase NPC Converter with DC-Link Voltages Fluctuation Suppression

Wang¹,

Zhao²

2018

Advances in Intelligent Systems Research

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“…During the optimizing process, the control actions are constrained to the limited available switching states, instead of continuous sets [17][18][19]. Until recently, finite set model predictive control with one-step prediction horizons has been applied to various converter topologies and also with a wide range of control objectives, including speed control, current control, power control, torque and flux control [20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Predictive Current Control of Three-Phase Grid-Tied Reversible Converters with Improved Switching Patterns

et al. 2016

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A predictive current control strategy can realize flexible regulation of three-phase grid-tied converters based on system behaviour prediction and cost function minimization. However, when the predictive current control strategy with conventional switching patterns is adopted, the predicted duration time for voltage vectors turns out to be negative in some cases, especially under the conditions of bidirectional power flows and transient situations, leading to system performance deteriorations. This paper aims to clarify the real reason for this phenomenon under bidirectional power flows, i.e., rectifier mode and inverter mode, and, furthermore, seeks to propose effective solutions. A detailed analysis of instantaneous current variations under different conditions was conducted. An enhanced predictive current control strategy with improved switching patterns was then proposed. An experimental platform was built based on a commercial converter produced by Danfoss, and moreover, relative experiments were carried out, confirming the superiority of the proposed scheme.

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“…In order to improve the response performance of current-loops, several methods have been proposed [12]- [17]. In [12], the control of a distributed generation converter under the rotating d-q frame using a Park transformation has been analyzed, in which 3-phase sinusoidal quantities are transformed into constant values under rotating d-q coordinates and a PI controller with inductance decoupling to eliminate errors.…”

Section: Introductionmentioning

confidence: 99%

“…Reference [16] proposes a predictive current control scheme with load power feed-forward to enhance the system response. However, the dynamic/static response of the predictive current control depends on an accurate predictive mathematical model and an appropriate cost function [17]. To solve these problems, a proportional-resonant (PR) controller under the static α-β frame has been proposed [18], [19] and the static error of the sinusoidal signal control at the resonant frequency point can be completely eliminated because the PR controller can provide an infinite gain at this frequency.…”

Section: Introductionmentioning

confidence: 99%

A Novel Control Scheme for T-Type Three-Level SSG Converters Using Adaptive PR Controller with a Variable Frequency Resonant PLL

Lin

Huang²,

Wan

2016

Journal of Power Electronics

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In this paper, a novel quasi-direct power control (Q-DPC) scheme based on a resonant frequency adaptive proportional-resonant (PR) current controller with a variable frequency resonant phase locked loop (RPLL) is proposed, which can achieve a fast power response with a unity power factor. It can also adapt to variations of the generator frequency in T-type Three-level shaft synchronous generator (SSG) converters. The PR controller under the static α-β frame is designed to track ac signals and to avert the strong cross coupling under the rotating d-q frame. The fundamental frequency can be precisely acquired by a RPLL from the generator terminal voltage which is distorted by harmonics. Thus, the resonant frequency of the PR controller can be confirmed exactly with optimized performance. Based on an instantaneous power balance, the load power feed-forward is added to the power command to improve the anti-disturbance performance of the dc-link. Simulations based on MATLAB/Simulink and experimental results obtained from a 75kW prototype validate the correctness and effectiveness of the proposed control scheme.

show abstract

Model Predictive Current Control of Grid-Connected Neutral-Point-Clamped Converters to Meet Low-Voltage Ride-Through Requirements

Cited by 181 publications

References 44 publications

Finite-Set Model Predictive Control for Eight-Switch Three-Phase NPC Converter with DC-Link Voltages Fluctuation Suppression

Finite-Set Model Predictive Control for Eight-Switch Three-Phase NPC Converter with DC-Link Voltages Fluctuation Suppression

Enhanced Predictive Current Control of Three-Phase Grid-Tied Reversible Converters with Improved Switching Patterns

A Novel Control Scheme for T-Type Three-Level SSG Converters Using Adaptive PR Controller with a Variable Frequency Resonant PLL

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