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Distribution feeder reconfiguration is a cost-effective scheme to improve the system operating condition. Making decisions on the status of switches along the feeder with high penetration of renewable resources requires a tractable and accurate input data analysis. This paper presents a method using Gaussian quadrature to approximate probability distribution function of input variables with a probability...
This paper presents a 24 factorial design to analyze the joint effect of loading, cooling characteristics, ambient temperature, and Oil Time Constant (OTC) on transformer Loss of Life (LOL). Transformer LOL is calculated for 16 combinations of factor levels. Residential load profile obtained from a utility is used to precisely model the loading factor. Design-Expert® Software Version 9 is used to...
Low voltage transformers are the most important and expensive assets in a power distribution system. The life time of a mineral-oil-immersed transformer is decreased by raising the Hottest Spot Temperature (HST) in peak hours. This paper assesses the effect of load shaping through households' appliances scheduling on lifetime of a distribution transformer. An IEEE standard transformer is used to estimate...
This paper proposes a stochastic modeling of aggregated vehicle-to-grid (V2G) based on sequential Monte Carlo simulation for reliability evaluation of distribution network. Uncertainties of electric vehicle (EV) travel information including parking lot arrival time, travelled distance and parking lot departure time are incorporated into reliability evaluation using appropriate probability distribution...
Cyber-enabled power system places higher requirements on the reliability of communication infrastructure. This paper proposes an approach to calculate reliability of distribution networks in the presence of communication media. Communication failure is incorporated into sequential Monte Carlo simulation using a uniform probability distribution function. A straightforward matrix representation is developed...
This paper proposes a new algorithm for reliability evaluation of complex radial distribution networks. The proposed algorithm is based on failure mode and effect analysis (FMEA) method. The paper talks about the definition of network topology using a matrix which is modified and new matrices are derived. These matrices are used for evaluation of load point reliability indices. The rows and columns...
This paper used the design of experiment concepts to develop a model that estimates the output power of a solar panel under certain experimental conditions and factors. This study will help in deciding the optimal placement of a solar panel to get the maximum output power based on the most influencing studied factors.
In a deregulated power distribution system with distributed generation, end users should be allocated the appropriate cost of energy transactions for fair and effective operation. One of the common practices is to allocate the cost of power losses to distributed generators (DGs) and consumers based on their effective share. According to the network configuration, DGs and consumers could have positive...
Smart sensors and monitoring technologies are beginning to penetrate different levels of the power system. In a smart grid scenario, the operational condition of components needs to be reported to the control center, in order to improve the remedial action for an ailing component. This will significantly reduce the component failure rate and improve reliability of the entire system. This paper proposes...
This paper presents a new methodology for handling load flow problem in distribution as well as transmission network. The methodology is based on backward/forward sweep method in which voltage regulated nodes are considered. Zbus matrix is constructed through a straightforward building procedure which is used to model line parameters. In the case of networks with two or more PV nodes, an approximate...
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