Two mismatch functions (power or current) and three coordinates (polar, Cartesian and complex form) result in six versions of the Newton–Raphson method for the solution of power flow problems. In this paper, five new versions of the Newton power flow method developed for single-phase problems in our previous paper are extended to three-phase power flow problems. Mathematical models of the load,...

We examine the effects of meta-level-communication in the DSRAP (Distributed Sequential Resource Allocation Problem). In DSRAP, independent tasks are categorized into different types, where each task belonging to a particular task type shares a known distribution of task arrivals, durations, reward rates, maximum waiting times, and resource demands. We first look at a single task type DSRAP (SD...

the nonlocal nonlinear buckling of a double layer graphene sheet (dlgs) covered by zinc oxide (zno) piezoelectric layers is investigated in this study. the surrounding circumstances of the system are considered as a pasternak foundation including spring constants and a shear layer. graphene sheets are subjected to longitudinal magnetic field and biaxial forces. on the other hand, the zno piezoe...

AbstractThe dynamic voltage restorer (DVR) is a series connected device for mitigating voltage sag/This paper presents with feed forward pre-sag/swell voltage control method to regulate the output voltage of pulse width modulated (PWM) voltage source converter (VSC). The proposed controller maintains a constant load voltage under the multiple balanced/unbalanced dynamic PQ disturbances. The pro...

Effective utilization of limited power resources by the sensors is pre-eminent to the Wireless Sensor Networks. Organizing the network into balanced clusters based on assigning equal number of sensors to each cluster may have the consequence of unbalanced load on the cluster heads. By-product of this is unbalanced consumption of the energy by the nodes which leads to minimization of network lif...

Effect of load variation on network reconfiguration and service restoration plans in balanced and unbalanced distribution systems is studied. Comprehensive survey of the conceptual aspect as well as published algorithms for distribution network reconfiguration is presented. Different reconfiguration networks and scenarios are discussed. Results showed the effectiveness of building restoration p...

A simple optimum voltage control method is proposed in this paper for three phase uninterruptible power supply systems based on fuzzy control. Moreover, the optimal load current observer is employed to optimize system cost and reliability. The previous term is designed to make the system errors converge to zero, whereas the latter term is applied to compensate for the system uncertainties then ...

This paper proposes by using fuzzy logic controller a simple optimal voltage control method for three-phase uninterruptible-power-supply systems. The proposed voltage controller is composed of a fuzzy control term and a compensating control term. The former term is designed to make the system errors converge to zero, whereas the latter term is applied to compensate for the system uncertainties....

With the invention of MPLS, complex traÆc engineering and multipath packet forwarding has become a reality. To use multipath packet forwarding, eÆcient load control between paths is necessary. Furthermore, dynamic load control is needed to optimize load mapping between paths depending on the network state. Unfortunately, distributed dynamic load control algorithms, if not carefully designed, ca...

Voltage source inverter (VSI) is a good candidate for grid forming microgrid because it provides constant amplitude, frequency, and sinusoidal shape voltage at point of common coupling (PCC). As the separated from utility grid, quality PCC easily affected by type load. To ensure power in operation, three-phase VSI providing automatic compensation unbalanced or nonlinear load presented this pape...