An excess non-linear and unbalanced load application increases the power quality (PQ) problem by injecting harmonic current. The avoidance of neutral current control creates additional PQ problems due to circulating in modern 3φ4W applications. Therefore, this manuscript suggests improved αβ transform-based voltage approaches for both 3φ3W shunt active filter (SAF) In proposed approach, a novel...

In the contemporary distribution network, unbalanced and harmonic distortions have been considered some major power quality problems, which escalated especially due to high penetration of nonlinear loads. This study first analyzes dispute around distortion restraint grid-connected unbalanced/harmonic current suppression quantitatively proposes a distributed control strategy that facilitates an ...

This article investigates the feasibility of using a simplified approach, based on measurement power ratio parameters, for harmonic emissions assessment at point common coupling (PCC). The proposed approach comes from concept factor correction and definitions IEEE Std. 1459-2010, where line utilization pollution levels are evaluated by means ratios between quantities apparent decomposition. In ...

ELECTRIC utilities and end users of electric power are becoming increasingly concerned about meeting the growing energy demand. Seventy five percent of total global energy demand is supplied by the burning of fossil fuels. But increasing air pollution, global warming concerns, diminishing fossil fuels and their increasing cost have made it necessary to look towards renewable sources as a future...

This paper reviews different approaches for unbalanced load flow analysis within a distribution network, especially in a microgrid (MG). Models of untransposed distribution lines and unbalanced loads are considered for each methodology, as these are common in a MG scenario. Various commercial software packages are also investigated and assessed in terms of solving the power flow of the MGs and ...

The DASUD (Diffusion Algorithm Searching Unbalanced Domains) algorithm belongs to the nearestneighbours class and operates in a diffusion scheme where a processor balances its load with all its neighbours. DASUD detects unbalanced domains and performs local exchange of load between processors to achieve global balancing. The DASUD algorithm has been evaluated by comparison with another well-kno...

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,...

When a three-phase induction generator (IG) supplies unbalanced loads, its terminal voltages and line currents are also unbalanced, which may cause the IG to overheat and need to be derated. A single-phase loaded self-excited induction generator (SEIG) works under most unfavorable load unbalance conditions. This paper proposes a three-capacitor circuit scheme and a method to find the values of ...