A Model-Based Direct Power Control for Three-Phase Power Converters
Sergio Vazquez,J.A. Sanchez,Juan Manuel Campos Carrasco,Jose I. Leon,Eduardo de Teresa Galván +4 more
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TLDR
A model-based DPC for three-phase power converters is designed, obtaining expressions for the input control signal, which allow the design of an adaptive control law that minimizes the errors introduced by parameter uncertainties as the smoothing inductor value or the grid frequency.Abstract:
The direct power control (DPC) technique has been widely used as a control strategy for three-phase power rectifiers due to its simplicity and good performance. DPC uses the instantaneous active and reactive power to control the power converter. The controller design has been proposed as a direct control with a lookup table and, in recent works, as an indirect control with an inner control loop with proportional-plus-integral controllers for the instantaneous active and reactive power errors. In this paper, a model-based DPC for three-phase power converters is designed, obtaining expressions for the input control signal, which allow the design of an adaptive control law that minimizes the errors introduced by parameter uncertainties as the smoothing inductor value or the grid frequency. A controller design process, a stability study of the system, and experimental results for a synchronous three-phase power rectifier prototype are presented to validate the proposed controller.read more
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Model Predictive Control: A Review of Its Applications in Power Electronics
Sergio Vazquez,Jose I. Leon,Leopoldo G. Franquelo,Jose Rodriguez,Hector Young,Abraham Marquez,Pericle Zanchetta +6 more
TL;DR: Model-based predictive control (MPC) for power converters and drives is a control technique that has gained attention in the research community as mentioned in this paper, and it can easily handle multivariable case and system constraints and nonlinearities in a very intuitive way.
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Predictive Direct Power Control of Three-Phase Pulsewidth Modulation (PWM) Rectifier Using Space-Vector Modulation (SVM)
TL;DR: In this article, a predictive direct power control (DPC) was proposed for three-phase pulsewidth modulation rectifier with constant switching frequency using space vector modulation (SVM).
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Predictive Optimal Switching Sequence Direct Power Control for Grid-Connected Power Converters
Sergio Vazquez,Abraham Marquez,Ricardo P. Aguilera,Daniel E. Quevedo,Jose I. Leon,Leopoldo G. Franquelo +5 more
TL;DR: The proposed reduced OSS-DPC algorithm belongs to the predictive-D PC family and provides the desired power references by calculating globally OSSs and has the potential to provide high performance during both transient and steady states.
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Robust Model-Based Fault Diagnosis for PEM Fuel Cell Air-Feed System
TL;DR: The design of a nonlinear observer-based fault diagnosis approach for polymer electrolyte membrane (PEM) fuel cell air-feed systems is presented, taking into account a fault scenario of sudden air leak in the air supply manifold.
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Enhanced Decoupled Double Synchronous Reference Frame Current Controller for Unbalanced Grid-Voltage Conditions
M. Reyes,Pedro Rodriguez,Sergio Vazquez,Alvaro Luna,Remus Teodorescu,Juan Manuel Campos Carrasco +5 more
TL;DR: In this paper, a decoupled double synchronous reference frame controller (DSRF) is proposed for estimating and compensating undesirable current oscillations in the DSRF controller, which is applied to power converters under unbalanced grid voltage conditions.
References
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A new mathematical model and control of a three-phase AC-DC voltage source converter
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Abstract: A new mathematical model of the power circuit of a three-phase voltage source converter (VSC) was developed in the stationary and synchronous reference frames. The mathematical model was then used to analyze and synthesize the voltage and current control loops for the VSC. Analytical expressions were derived for calculating the gains and time constants of the current and voltage regulators. The mathematical model was used to control a 140-kW regenerative VSC. The synchronous reference-frame model was used to define feedforward signals in the current regulators to eliminate the cross coupling between the d and q phases. It allowed the reduction of the current control loops to first-order plants and improved their tracking capability. The bandwidths of the current and voltage-control loops were found to be approximately 20 and 60 times (respectively) smaller than the sampling frequency. All control algorithms were implemented in a digital signal processor. All results of the analysis were experimentally verified.
Proceedings ArticleDOI
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TL;DR: In this paper, the authors proposed a novel power control strategy for a PWM converter with no power-source voltage sensors, which has two main features to improve a total power factor and efficiency.
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PWM regenerative rectifiers: state of the art
TL;DR: This work presents the state of the art in the field of regenerative rectifiers with reduced input harmonics and improved power factor, showing that PWM regenerativerectifiers are a highly developed and mature technology with a wide industrial acceptance.