نتایج جستجو برای: distributed generations dgs

تعداد نتایج: 297075  

Journal: :journal of operation and automation in power engineering 2014
behnam mohammadi-ivatloo a. mokari h. seyedi s. ghasemzadeh

when a distribution network consisting of distributed generations (dgs) is disconnected from upstream network, the system may be exposed to severe power imbalance. in order to prevent the damage of power plants, frequency relays operate and remove dgs from the network. in contrast to traditional methods, the main objective in new methods is to keep dg units in service in the islanded distributi...

2017
S. R. A. Rahim M. M. Othman M. H. Hussain

This paper presents the implementation of multiple distributed generations planning in distribution system using computational intelligence technique. A pre-developed computational intelligence optimization technique named as Embedded Meta EP-Firefly Algorithm (EMEFA) was utilized to determine distribution loss and penetration level for the purpose of distributed generation (DG) installation. I...

2013
Liu Wei Zhang Xu

When the system is with DG (distributed generation), Power system structure has changed The structure has change to complicated new model with distributed generations from traditional open network. The voltage and power losses of traditional network will be influenced by the location connected with DG, reactive power, active power and the number of DG. The purpose to connect DG is to improve re...

2011
M. Kohansal M. J. Sanjari G. B. Gharehpetian

A microgrid is composed of distributed power generation systems (DGs), distributed energy storage devices (DSs), and loads. To maintain a specific frequency in the island mode as an important requirement, the control of DGs output and charge action of DGs are used in supply surplus conditions and load-shedding and discharge action of DGs are used in supply shortage conditions. Recently, multiag...

2014
Zou Bi-chang

It makes the topology of distribution network more complex to contain a lot of distribution generations (DGs) in it. For this reason, a fault location approach suitable to the distribution network containing DGs is proposed. Firstly, according to the results of power flow calculation, a database of voltage sag is established; then the power quality information is acquired by power quality monit...

Clean and sustainable renewable energy technology is going to take responsibility of energy supply in electrical power systems. Using renewable sources improve the environment and reduce dependence on oil and other fossil fuels. In distribution power system, utilizing of wind and solar DGs comprises some advantages; consist of loss and emission reduction, and also improvement of voltage profile...

Journal: :Applied sciences 2021

Due to the growing power demands in microgrids (MGs), necessity for parallel production achieved from distributed generations (DGs) supply load required by customers has been increased. Since DGs have procure demand mode, they are faced with several technical and economic challenges, such as preventing overloading not losing network stability considering feeder impedance variation. This paper p...

Journal: :Bulletin of Electrical Engineering and Informatics 2021

DG sources have been introduced as one of the most widely used and effective methods among various providing losses reduction in power systems. In this paper, artificial bee colony algorithm has employed with aim determining location capacity distributed generations (DGs) capacitor banks (CBs) distribution The proposed objective function includes ENS reliability index, which is by deploying wei...

جمالی, صادق, رضایی فرشه, حسین, رفیع, نوید رضا,

Integration of distributed generation (DG) into distribution networks causes some protection challenges, which can be solved by appropriate coordination of directional overcurrent relays. The optimal coordination of directional overcurrent relays is an important task to fulfill the protection requirements of the network. This paper presents an optimal coordination method for directional overcur...

Journal: :SSRG international journal of electrical and electronics engineering 2023

The economic dispatch of the Micro-Grid (MG) in current scenario considers scheduling cycle with lowest cost and effectively manages multiple Distributed Generations (DGs) over an extended duration, making it a more appropriate choice for functional system. unpredictability wind solar energy poses challenge solving problem. Implementing intelligent algorithms multi-objective optimum dispatching...

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