Three-phase four-wire systems require a reference frame similar to that used in 3-phase 3-wire system configurations allow them be easily analysed, modelled and controlled. A new called Reduced Reference Frame (RRF) was presented by the authors previous work satisfy these objectives. This is based on locus of voltage space vector which perform transformation applied 4-wire systems. paper uses p...

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...

The dynamic voltage restorer (DVR) combined with a photovoltaic–thermoelectric generator (PV-TEG) system is proposed for disturbance compensation in the three-phase four-wire distribution system. PV-TEG hybrid energy source used DVR to improve ability deep and long-period power quality compensation. In addition, will save grid consumption when module generates sufficient meet load demand. An en...

Three-phase four-wire grid-forming (GFM) inverters are promising to interface distributed energy resources into low-voltage networks. However, these prone overcurrent under grid faults. Physically increasing the inverter current capacity is not cost-effective cope with complicated fault conditions. In this article, an adaptive ride-through (FRT) scheme based on instantaneous saturators and virt...

Distributed generation (DG) allows the production of renewable energy where it is consumed, avoiding transport losses. It envisioned that future DG units will become more intelligent, not just injecting power into grid but also actively improving quality by means active filtering techniques. In this manner, voltage and current harmonics, unbalance or over-voltages can be mitigated. To achieve s...

The typical loads in the commercial buildings comprise of many single phase and three phase loads which includes non-linear loads. These loads are highly sensitive for any input variations in voltage. The performance of the electrical equipment gets worsened if they are supplied with polluted or distorted voltage. This paper presents modeling and analysis of custom power devices. SAPF based UPQ...