نتایج جستجو برای ' Distributed generation '

Today, distributed generation sources and capacitors play a significant role in the technical and economic environment for power systems. Using distributed generation resources can reduce network losses and also improve the voltage profile and thus increase network power quality. Also, the capacitor can play an important role in improving the voltage profile and reducing reactive power losses. If the location and size of the distributed generation sources and the capacitor are selected without s...

The use of distributed generation resources is increasing to improve reliability in power systems. Benefits such as reducing network losses and pollution have increased the focus on these resources. The presence of distributed generation sources has led to the discussion of grid grids. A micro grid is a set of distributed generation units and storage devices, along with a set of loads, which, because of intelligent control, behave like a load or generator from the viewpoint of the main grid. In ...

The IRAN has a significant biomass resource, estimated at an annual 20 million tonnes, but only a fraction of this is captured effectively for energy, contributing approximately 4.1% of the IRAN’s heat and electricity production. Much biomass combustion technology may be considered as mature, although bottlenecks in the quality and quantity of feedstock are apparent, and further fundamental research is required to increase crop yield in a sustainable manner, with low chemical inputs to ens...

This paper reports on the current UK scenario of islanded operation of active distribution networks with renewable distributed generators (RDGs). Different surveys indicate that the present scenario does not economically justify islanding operation of active distribution networks with RDGs. With rising DG penetration, much benefit would be lost if the DGs are not allowed to island only due to conventional operational requirement of utilities. Technical studies clearly indicate the need to review...

 The growth of energy consumption, the ever extensive use of conventional fossil fuels from exhaustible resources and concerns about the environment have led to the development of sustainable renewable energy as a necessary global requirement. Today, the trend in the electrical sector is the generation of electrical power at low voltage. Distributed generation at low voltage enables consumers to contribute to the country’s energy mix system without large investments by governments. Th...

 In this paper, a framework is presented to solve the problem of multistage distribution system expansion planning in which installation and/or reinforcement of substations, feeders and distributed generation units are taken into consideration as possible solutions for system capacity expansion. The proposed formulation considers investment, operation, and outage costs of the system. The expansion methodology is based on pseudo-dynamic procedure. A combined genetic algorithm (GA) and optima...

 Reliability improvement and loss reduction are two important goals in optimal sizing and siting of distributed generations (DGs). Also, remote controllable switches can be utilized in distribution networks to increase the role of DGs in reliability improvement. Therefore, this paper presents a GA-based method to allocate simultaneously DGs and remote controllable switches in electric distribution networks. The goal of proposed approach is reliability improvement and energy loss reduction. ...

 The increasing penetration of distributed generation and changing electricity industry necessitates that maximum benefit is obtained from distributed generators. Due to the importance of reliability of supply, the optimum location to maximise reliability has been investigated. A value based approach is used so that costs associated with levels of reliability may be used as an indicator. These are determined using probabilistic approaches which is a departure from the traditional determinis...

 Distribution system companies intend to supply electricity to its customers in an economical and reliable manner whereas customers in most distribution system are outspread and connect to distribution system with different type of equipments. These equipment usually have various types and resistance together, that produce highest loss and lowest reliability for distribution systems and customers that are not appreciated in networks. Distributed generations (DGs) are one of the best reliabl...

 Distributed Generation (DG) is gaining in significance due to the keen public awareness of the environmental impacts of electric power generation and significant advances in several generation technologies which are much more environmentally friendly (wind power generation, micro-turbines, fuel cells, and photovoltaic) than conventional coal, oil and gas-fired plants. Accurate assessment of energy losses when DG is connected is gaining in significance due to the developments in the electri...