The grid voltage modulated direct power control (GVM-DPC) is a novel regulation method for grid-connected source inverters (VSI). However, interactions between real and reactive powers still exist in GVM-DPC under unbalanced condition, which may deteriorate its transient performance. This article proposes decoupling GVM-DPC-based VSI systems based on the dynamic feedforward compensation strateg...

This paper focuses on a second order sliding mode based direct power controller (SOSM-DPC) of a three-phase grid-connected voltage source converter (VSC). The proposed control scheme combined with fuzzy logic aims at regulating the DC-link voltage of the converter and precisely tracking arbitrary power references, in order to easily control the system’s power factor. Therefore measures are prop...

Conventional direct power control (DPC) technique is a simple and efficient control strategy for three-phase PWM rectifier. However, its performance is deteriorated when the converter is supplied by unbalanced or distorted grid voltages. This paper describes the design and implementation of a new configuration of DPC based on disturbance rejection principle to achieve near-sinusoidal input curr...

Abstract – In this paper we analyse the convergence properties of distributed power control (DPC) and propose an improved algorithm to overcome the weakness of DPC. The DPC algorithm can only work in the region of low signal to interference ratios (SIRs). When the user SIR target is high, the transmit power will diverge to infinite. Furthermore, before the system converges, the DPC algorithm ma...

This article presents a voltage-modulated direct power control (VM-DPC) with an additional parallel compensator for the doubly fed induction generator under unbalanced grid conditions. The proposed method not only guarantees satisfying steady-state performance but provides also regulating property of negative-sequence output currents through designed compensator. It can provide symmetrical stat...

In this paper we present a new algorithm for mobile power updates in wireless CDMA systems. The algorithm in fact represents accelerated Jacobi iterations for mobile power updates of the algorithm popularly known as the DPC (distributed power control) algorithm. The new algorithm, with more rapid convergence, is obtained using Steffensen fixed-point iterations initialized by two Jacobi iteratio...

This paper explains the control strategies for three phase PWM rectifier using space vector modulation (SVM).The virtual flux based Direct Power Control (VF-DPC) which eliminates the line voltage measurements, active filtering function along with direct power control and conventional Voltage Oriented Control (VOC) in rotating coordinates with a novel line voltage estimator are studied, modeled ...

Model Predictive Control (MPC) and Direct Power (DPC) are widely used in Doubly Fed Induction Generator (DFIG) applications. However, the context of DPC-based MPC for DFIG, there has been a lack literature focusing on design parameters. In this way, article introduces novel technique designing weighing matrices using Fake Algebraic Riccati Equation (FARE). As FARE is associated with infinite re...

active filters have proven to be more effective than passive techniques to improve power quality and to solve harmonic and power factor problems due to nonlinear loads. this paper proposes a control scheme based on the instantaneous active and reactive power. the inverter of this active filter is a three-phase, two-level converter. space vector technique is used as modulators and pattern genera...