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Distributed generation (DG) corresponds to the application of small generating units which are the set up in distribution systems or near load centers. Utilization of DG influences various operational indices of the distribution feeders such as feeder loading, electrical losses and voltage profile. In addition, use of DG in its appropriate size is an essential tool to attain the DG maximum potential...
This paper presents a new index to evaluate a distorted signal under unbalanced and harmonic conditions. This criterion is called total harmonic and unbalanced distortion (THUD) which can be used to calculate the amount of harmonics and unbalance of voltage, current and power waveforms. Whereas conventional factors such as Vࢤ/V+ and THD are fairly incomplete to express the total distortion of a signal...
This paper presents an optimal power flow (OPF) model which maximizes system security. Loading factor has been chosen as objective function of OPF problem to enhance system security. It is demonstrated that available transfer capability (ATC) is a suitable criterion for evaluation of system security. In addition, this concept is consistent to ISO requirements for system operation. On the other hand,...
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