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The worldwide increasing demand for electricity, coupled with governmental policy changes for "green" energy has led to significant interest in distributed generation (DG). Integrating DG into an electricity network, especially close to load centres, has many significant benefits but also brings with it many drawbacks such as voltage drop, and power losses. In this paper the impact of three...
This paper describes the simulation of a distributed generation system with storage technologies. The simulation is performed using a SCADA software for a distributed generation system, considering the generation cost, the daily load, the power losses and the availability of the system's generating units. Also, a storage unit is added to the system. The system's generating units cover demand in order...
This paper is an intent to quantify and analyze the impact of distributed generation(DG) in Tamil Nadu, India to examine what the benefits of decentralized generation would be for meeting rural loads. In this paper, the total loss of a practical distribution system is calculated with and without distributed generation and an index, quantifying the total line loss reduction and energy conservation...
This paper presents a heuristic method to solve the network reconfiguration problem in the presence of distributed generation (DG) in order to minimize energy losses and improve the performance indexes in distribution system. Topological reconfiguration corresponds to an important tool for planning and operation of electric power distribution systems. Considering the distribution operation planning,...
In the recent years the electrical power networks are undergoing rapid restructuring and developing process worldwide. Advancement in technologies and concern about the environmental impacts have led to increase interconnection of renewable energy based distributed generations (DGs) in distribution networks. The DGs have significant impacts on the distribution systems; these impacts may be either...
This paper presents a comparison of reactive power support in distribution networks provided by switched Capacitor Banks (CBs) and Distributed Generators (DGs). Regarding switched CBs, a Tabu Search metaheuristic algorithm is developed to determine their optimal operation with the objective of reducing the power losses in the lines on the system, while meeting network constraints. On the other hand,...
Distributed generation (DG) systems have many impacts on the power network. Previously, the power was supplied from the centralized generating unit and then dispatched to the loads, but today DG systems provide electrical power at the customers' sites and slightly decline the losses due to either transmission or distribution of the electricity. Furthermore, DG systems are able to reduce the emission...
Distributed Generation (DG), has started becoming a reality in electricity networks. This analysis focuses more on a specific configuration of networks with DG, the Microgrid. Microgrids can operate in a coordinated way either interconnected to an upstream distribution network or autonomously in case of faults in the upstream medium voltage network, like the power systems of physical islands. Under...
In this paper we consider possible technical challenges which may arise while attempting to modernize today's electric power systems by connecting many distributed generators (DG) of diverse technologies closer to the end-users within the distribution networks. We report that connecting larger (~1 MW) DGs at the network locations, which result in minimal delivery losses, may lead to frequency instabilities...
The optimal sizing and placement of distributed generators has received considerable attention from researchers recently. An Immune Algorithm (IA) based optimization approach for solving the distributed generation (DG) placement problem is proposed in this paper. In the distributed generation placement problem, practical DG operating constraints including: load profiles, feeder capacities and allowable...
The optimal sizing and placement of distributed generators has received considerable attention from researchers recently. An immune algorithm (IA) based optimization approach for solving the distributed generation (DG) placement problem is proposed in this paper. In the distributed generation placement problem, practical DG operating constraints including: load profiles, feeder capacities and allowable...
The development of distributed generation (DG) has a great influence on the traditional power systems and received considerable attention in recent years. After interconnected DG, the voltage maybe to rise along the feeder, and has serious potential impacts on distribution system. This paper introduction the algorithm based on distributed slack buses model through adjusted Newton-Raphon, the participated...
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