The impedance analysis has been proposed and proved to be an effective way analyze the grid-connected stability of Voltage Source Converter (VSC) based energy conversion systems. Most existing analyzes are discussed on vector oriented control, while there few discussions about Direct Power Control (DPC). In this paper, modeling approach VSC using DPC is firstly analyzed, which fills gap convert...

This paper discusses a renewable energy system connected to dual-function power grid through shunt active filter improve the quality and inject photovoltaic (PV) in presence of nonlinear loads. Disturbance rejection for this electrical network is provided by proposed direct control (DPC) command. The DPC strategy combines fractional order PID controller regulation DC bus voltage with an intelli...

Now a day’s adjustable speed drives has grasped more attractive usage for applications like pump, compressor, and other centrifugal load applications rather than conventional constant speed drives due to their high efficiency and flexibility of operation. In general to start up a Doubly Fed Induction Machine (DFIM) an additional starting resistors or an auto transformer is needed. In this paper...

Chaouki Abdallah Electrical & Computer Engineering Department The University of New Mexico Albuquerque, New Mexico 87131 USA E-mail: [email protected] In wireless cellular communication, it is essential to find effective means for power control of signals received from randomly dispersed users within one cell. Effective power control will heavily impact the system capacity. Distributed power...

In wireless cellular communication, it is essential to nd e ective means of power control of signals received from randomly dispersed users within one cell. E ective power control will heavily impact the system capacity. Distributed power control (DPC) is a natural choice for such purpose, because unlike centralized power control, DPC does not require extensive computational power. Distributed ...

In this paper, we introduce variable coding rate (VCR) control to OFDM adaptive modulation scheme (OFDM AMS) in order to realize high throughput with relatively simple transceiver configurations in a dynamic parameter controlled-orthogonal frequency and time division multiple access (DPC-OF/TDMA). In the proposed system, multilevel transmit power control (MTPC) is not employed to simplify hardw...

In this paper, a new proposal for the implementation of well-known direct power control (DPC) technique in grid-connected photovoltaic (PV) systems is suggested. Normally, DPC executed using look-up table procedure based on error between actual and reference values active reactive power. Thus, structure simple results fast transient behavior inner current loop (injected currents). Therefore, st...

For improving the quality of the energy transfer from the power supply to the load, and reducing the harmful effects of the harmonics generated by nonlinear load. We propose a new multi-function converter (MFC) as an efficient solution to improve the power quality. This paper presents a new DPC strategy based on virtual flux Observer and switching table to control PWM rectifier achieving by thi...

<p>The work presents the dual-rotor wind energy conversion system (DRWECS) with a direct driven doubly-fed induction generator (DFIG). The consists of turbine (DRWT) DFIG, grid side converter (GSC), and machine (MSC). To command MSC, power (DPC) based on genetic algorithm (GA) classical pulse width modulation (PWM) has been applied. achieve maximum from DRWT, powe point tracking (MPPT) te...