This paper presents a hysteresis band control for achieving maximum benefits from these gridinterfacing inverters when installed in 3-phase 4-wire distribution systems. The inverter is controlled to perform as a multi-function device by incorporating active power filter functionality. The inverter can thus be utilized as: 1) power converter to inject power generated from RES to the grid, and 2)...

The increased power demand, the depletion of the fossil fuel resources and the growth of the environmental pollution has led the world to think seriously of other alternative sources of energy. So renewable energy resources (RES) are being connected to the distribution systems, mostly done by using power electronic converters. A new control strategy for achieving maximum advantage from these gr...

this paper presents a new control method for a three-phase four-wire unified power quality conditioner (upqc) to deal with the problems of power quality under distortional and unbalanced load conditions. the proposed control approach is the combination of instantaneous power theory and synchronous reference frame (srf) theory which is optimized by using a self-tuning filter (stf) and without us...

This paper proposes a modified version of the power-based control (MPBC) applied to microgrids (µGs) with multiple points connection (i.e., utility grid itself or any other neighboring µG). Using MPBC, single-phase distributed energy resources (DERs) arbitrarily connected between phases share amounts balanced power, while unbalanced and homopolar power are steered only line-to-neutral inverters...

In recent years, several applications have been proposed in the context of distribution networks. Many these can be formulated as an optimal power flow problem, a mathematical optimization program which includes model steady-state physics electricity network. If network loading is balanced and lines are transposed, simplified to single-phase equivalent model. However, assumptions do not apply l...

Active filtering of electric power has now become a mature technology for harmonic and reactive power compensation in two-wire (single phase), three-wire (three phase without neutral), and four-wire (three phase with neutral) ac power networks with nonlinear loads. This paper presents a comprehensive review of active filter (AF) configurations, control strategies, selection of components, other...

This paper presents a new control method for a three-phase four-wire Unified Power Quality Conditioner (UPQC) to deal with the problems of power quality under distortional and unbalanced load conditions. The proposed control approach is the combination of instantaneous power theory and Synchronous Reference Frame (SRF) theory which is optimized by using a self-tuning filter (STF) and without us...