Now showing items 1-10 of 1149
Optimal reactive power dispatch using stochastic chance-constrained programming
Deterministic Optimal Reactive Power Dispatch problem has been extensively studied, such that the demand power and the availability of shunt reactive power compensators are known and fixed. Give this background, a two-stage ...
Sensitivity analysis for overload-relief in transmission lines using an implicitly coupled method (CRIC)
The restructuring of energy markets to provide free access to the networks and the consequent increase of the number of power transactions has been causing congestions in transmission systems. As consequence, the networks ...
Distributed generation modelling for unbalanced three-phase power flow calculations in smart grids
Distributed Generators (DG) are generally modeled as PQ or PV buses in power flow studies. But in order to integrate DG units into the distribution systems and control the reactive power injection it is necessary to know ...
Influence of the supply of reactive power in the calculation of the transfer capability
This paper presents some initial concepts for including reactive power in linear methods for computing Available Transfer Capability (ATC). It is proposed an approximation for the reactive power flows computation that uses ...
Conservative power theory discussion and evaluation by means of virtual instrumentation
Considering different single and multiphase circuits feeding linear and non-linear loads, this paper presents theoretical discussions and experimental evaluation of the recent Conservative Power Theory (CPT), by means of ...
Pricing of reactive power support provided by distributed generators in transmission systems
Distributed Generation, microgrid technologies, two-way communication systems, and demand response programs are issues that are being studied in recent years within the concept of smart grids. At some level of enough ...