Journal ArticleDOI
A Model Predictive Control Method for Grid-Connected Power Converters Without AC Voltage Sensors
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A model predictive control strategy for grid-connected power converters is proposed in this article to reduce the current ripples without using ac voltage sensors, and a double-voltage vector-based MPC strategy is proposed based on the principle of the modulated MPC.Abstract:
A model predictive control (MPC) strategy for grid-connected power converters is proposed in this article to reduce the current ripples without using ac voltage sensors. First, a sliding-mode observer is designed to estimate the grid voltage with an adaptive compensation algorithm. Thus, grid-voltage sensors are removed. The novelty of the proposed grid-voltage observation method is that it is inherent frequency adaptive without using the accurate grid angular frequency. By implementing the MPC strategy using the estimated grid voltage, the current ripples are reduced, especially under distorted grid-voltage conditions because of the low-pass filter used in the observer. Next, to further reduce the current ripples, a double-voltage vector-based MPC strategy is proposed based on the principle of the modulated MPC. Detailed theoretical analyses are also carried out to show its effectiveness for the first time. Finally, experimental studies are carried out to verify the validity of the proposed ac voltage sensorless MPC strategy.read more
Citations
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Journal ArticleDOI
A Review on Direct Power Control of Pulsewidth Modulation Converters
TL;DR: In this paper, the authors explored various direct power control (DPC) strategies for three-phase two-level pulsewidth modulation (PWM) converters and summarized the fundamental power formula of PWM rectifiers, and studied the operating principle of the conventional table-based approach and its related improvements.
An Inductance Online Identification-Based Model Predictive Control Method for Grid-Connected Inverters With an Improved Phase-Locked Loop
TL;DR: In this article , an improved phase-locked loop (PLL) and a new inductance online identification method are proposed to simplify the tuning process and enhance the parameter robustness of the model predictive control (MPC) for grid-connected inverters.
Journal ArticleDOI
An augmented state observer-based sensorless control of grid-connected inverters under grid faults
Fayçal Benyamina,Fayçal Benyamina,Abdeldjabar Benrabah,Farid Khoucha,Farid Khoucha,Muhammad Fahad Zia,Yahia Achour,Mohamed Benbouzid,Mohamed Benbouzid +8 more
TL;DR: A novel control strategy to improve grid-connected inverter control under unbalanced grid voltage conditions can be achieved by reducing active power and suppressing its fluctuations with new current references, which are obtained in the synchronous reference frame according to grid codes.
Hybrid Multi-Vector Modulated Model Predictive Control Strategy for Voltage Source Inverters Based on a New Visualization Analysis Method
TL;DR: In this paper , a new visualization analysis method is proposed to evaluate the effectiveness of the conventional multi-vector modulated MPC strategy, based on which a new hybrid multiview MPC scheme is further presented to improve the current control performance.
Journal ArticleDOI
Current Sensor-Less Virtual Synchronous Generator Model Predictive Control Based on Sliding Mode Observer
TL;DR: In this article, a current sensor-less model predictive control method based on sliding mode observer (SMO) is proposed to enhance the fault-tolerant operation ability of the grid-connected power inverter.
References
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Modulated Model Predictive Control for a Three-Phase Active Rectifier
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Model Predictive Control for Shunt Active Filters With Fixed Switching Frequency
Luca Tarisciotti,Andrea Formentini,Alberto Gaeta,Marco Degano,Pericle Zanchetta,Roberto Rabbeni,Marcello Pucci +6 more
TL;DR: In this article, a modification to the classical Model Predictive Control (MPC) algorithm and its application to active power filters is presented. But the proposed control is able to retain all the advantages of a finite control set MPC while improving the generated waveforms harmonic spectrum.
Journal ArticleDOI
Direct Grid Current Control of LCL-Filtered Grid-Connected Inverter Mitigating Grid Voltage Disturbance
TL;DR: In this article, a direct grid current control strategy for LCL-filtered grid-connected inverters is proposed, where the virtual resistance based on capacitance current is used to realize active damping, zero compensation is brought in to enhance the stability, and the proportional resonant (PR) controller under two-phase static coordinate is designed to track the ac reference current as well as to avoid the strong coupling brought by the coordinate transformation.
Journal ArticleDOI
Multiple-Vector Model Predictive Power Control for Grid-Tied Wind Turbine System With Enhanced Steady-State Control Performance
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