Distribution System Reconfiguration Considering Customer and DG Reliability Cost

Abstract

-This paper presents a novel objective function for distribution system reconfiguration for reliability enhancement. When islanding operations of distributed generators is prohibited, faults in the feeder interrupt the operation of distributed generators. For this reason, we include the customer interruption cost as well as the distributed generator interruption cost in the objective function in the network reconfiguration algorithm. The network reconfiguration in which genetic algorithms are used is implemented by MATLAB. The effect of the proposed objective function in the network reconfiguration is analyzed and compared with existing objective functions through case studies. The network reconfiguration considering the proposed objective function is suitable for a distribution system that has a high penetration of distributed generators.

A literature review on estimating of PV-array hourly power under cloudy weather conditions

“…As a result, a model of PV which is useful to estimate the short-term output power of PVs based on could coverage variations has been considered as one of the most important requirement of power utilities. 1 In the operation of PVs, available information about output power hour-by-hour in every season is very substantial. The drawbacks of evaluation reliability of PVs based on Oktas-scale in modern power system are summed up in the following steps:…”

“…In addition, recent developments in renewable resources as distributed generations (DGs) in distribution systems have changed the structure of electrical networks and ownership of electricity industry [1,2]. Also, the reliability of distribution system is an important issue to be considered in system planning and operation due to the following two main reasons: firstly, customers have become more sensitive to quality of provided service; secondly, if some standards of reliability are not accomplished, regulators can penalize the utility [3].…”

Reliability evaluation of distribution system integrated with distributed generation

“…Bertling et al [11] proved that the reliability centred maintenance can considerably affect the reliability of the system. In [12], [13] discussed the effect of reconfiguration of the distribution system on the reliability of the system. In [14], [15] evaluated the improvement in the system relaibiliy considering distribution automation.…”

Case Studies for Non-Detection of Islanding by Grid-Connected In-Parallel Photovoltaic and Electrical Energy Storage Systems Inverters

“…As the supply of renewable energy is expanding globally, the amount of distributed power sources (e.g., solar photovoltaic (PV) and wind power) connected to the power grid is also rapidly increasing [1]. In addition, a number of studies related to distributed power connections have been conducted [2][3][4][5][6][7]. The inclusion of distributed power sources such as PV and wind power [8][9][10] could degrade power quality due to fluctuations of their output power.…”