Droop schemes are usually applied to the control of distributed generators (DGs) in microgrids (MGs) to realize proportional power sharing. The objective might, however, not suit MGs well for economic reasons. Addressing that issue, this paper proposes an alternative droop scheme for reducing the total active generation costs (TAGC). Optimal economic operation, DGs’ capacity limitations and sys...

This paper will analyze the total generation costs for a power network in two situations: when the distributed generators (DGs) are connected to the network and when the DGs are not connected to the network. The study will be performed by using a specialized software for the simulation and analysis of power systems, Neplan, for a test system. The test system comprises 6 generators (of which 3 d...

In this paper, using particle swarm optimization (PSO) based method is developed to determine the optimal allocation of distributed generators (DGS) on a multi phased unbalanced distribution network. PSO algorithm has been programmed in MATLAB using open source software called OpenDSS in a cosimulation environment to solve the unbalanced three-phase optimal power flow (TOPF) and to find the opt...

Abstract In the distribution system, decentralized generation is incorporated to maximize system reliability and economic stability, avoid redundancy in system. The efficient implementation of distributed‐generations (DGs) a distribution‐system (DS) can be done by employing demand‐side management (DSM). this research proposal, location size selection DGs DS considering DSM accomplished using hy...

In this article, a novel cooperative secondary voltage/frequency control considering time-varying delays and noises in fading channels is presented for an autonomous alternating current (AC) voltage sourced-based converter (VSC)-based microgrid (MG), including inverter-interfaced distributed generations (DGs). Fading phenomenon makes complex random fluctuations on the frequency of every DG rece...

Increasing the usage of distributed generations (DGs) leads microgrids (MGs) to develop. Considering existence alternating current (ac) loads and sources concerning increasing direct (dc) sources, hybrid ac/dc MGs have been used advantages both ac dc reduce drawbacks them. By integrating DG units in MGs. Hence, a proper control method is required such achieve precise voltage regulation power-sh...

The proliferation of Distributed Generations (DGs) in distribution networks has provided power system operation improvement while raising some protection challenges. Turning to bi-directional, the schemes deregulated should be able deal with an out-of-zone fault. More specifically, DGs impose bi-directional fault current and directional relay employed identify correct direction so that protecti...

The Virtual Power Plant (VPP) has been proposed to aggregate Distributed Generations (DGs) act like a single power plant, thus, also functions on the frequency and voltage support. previous models of VPP are static focus energy trading management. For system transient response analysis, dynamic model must be needed. paper proposes reduced-order yet accurate aggregated represent transients for s...

Abstract Integrating distributed generations (DGs) into the radial distribution system (RDS) are becoming more crucial to capture benefits of these DGs. However, non-optimal integration renewable DGs and shunt capacitors may lead several operational challenges in systems, including high energy losses, poor voltage quality, reverse power flow, lower stability. Therefore, this paper, multi-object...

Distribution system state estimation (DSSE) has been introduced to monitor distribution grids; however, due the incorporation of distributed generations (DGs), traditional DSSE methods are not able reveal operational conditions active networks (ADNs). calculation depends heavily on real measurements from measurement devices in networks. However, accuracy and results can be significantly affecte...