Journal ArticleDOI
Analysis and design of direct power control (DPC) for a three phase synchronous rectifier via output regulation subspaces
Gerardo Escobar,Aleksandar M. Stankovic,Juan Manuel Campos Carrasco,Eduardo de Teresa Galván,Romeo Ortega +4 more
TLDR
In this paper, the authors present a controller that directly regulates the active and instantaneous reactive power in a synchronous three-phase boost-type rectifier, which ensures a good regulation of the output voltage, and guarantees the power factor close to one.Abstract:
In this paper, the authors present a controller that directly regulates the active and instantaneous reactive power in a synchronous three-phase boost-type rectifier. The controller ensures a good regulation of the output voltage, and guarantees the power factor close to one. The controller builds upon the ideas of the well known direct torque control (DTC) for induction motors. In their case, the active and reactive powers replace the torque and flux amplitude used as the controlled outputs in DTC, thus motivating the name DPC-control. They show that a simple modification to the original algorithm makes the selection of the control inputs more accurate. To formalize this technique, they utilize the concept of output regulation subspaces. A modification is added to the basic controller to deal with disturbances such as unbalance and distortion in the source voltage. Finally, the proposed controller was tested both in simulations and experimentally, and illustrative results are presented.read more
Citations
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Journal ArticleDOI
Direct active and reactive power control of DFIG for wind energy generation
Lie Xu,P. Cartwright +1 more
TL;DR: In this paper, a new direct power control (DPC) strategy for a doubly fed induction generator (DFIG)-based wind energy generation system is presented, which is based on the direct control of stator active and reactive power by selecting appropriate voltage vectors on the rotor side.
Journal ArticleDOI
Overview of Control Systems for the Operation of DFIGs in Wind Energy Applications
TL;DR: The control systems for the operation of DFIGs in wind energy applications are reviewed for connections to balanced or unbalanced grids, and sensorless control.
Journal ArticleDOI
Direct Power Control of DFIG With Constant Switching Frequency and Improved Transient Performance
Dawei Zhi,Lie Xu +1 more
TL;DR: In this article, a new direct power control (DPC) strategy for a doubly fed induction generator (DFIG)-based wind turbine system is proposed, which eliminates active and reactive power errors within each fixed time period.
Journal ArticleDOI
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).
Journal ArticleDOI
Predictive Control Strategy for DC/AC Converters Based on Direct Power Control
TL;DR: P predictive direct power control (P-DPC) is proposed, a new control approach where the well-knowndirect power control is combined with predictive selection of a voltage-vectors' sequence, obtaining both high transient dynamics and a constant-switching frequency.
References
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Proceedings ArticleDOI
Direct power control of PWM converter without power source voltage sensors
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.
Proceedings ArticleDOI
Virtual flux based direct power control of three-phase PWM rectifiers
TL;DR: In this article, the authors proposed a direct power control (DPC) of three-phase pulsewidth-modulated rectifiers without line voltage sensors, which is based on virtual flux (VF) estimation.
Proceedings ArticleDOI
Three phase PWM converter/inverter by means of instantaneous active and reactive power control
TL;DR: A novel PWM (pulse-width-modulated) technique for the three-phase PWM converter/inverter is proposed, where the instantaneous active and reactive power are used as the PWM control variables instead of theThree-phase line currents.
Proceedings Article
An Adaptive Controller in the stationary reference frame for D-Statcom in unbalanced operation
Journal ArticleDOI
An adaptive controller in stationary reference frame for D-statcom in unbalanced operation
TL;DR: A passivity-based controller for a Distribution Static synchronous Compensator (D-Statcom) aimed at compensating reactive power and un balanced harmonics in the general case of distorted and unbalanced source voltages and load currents is presented.