Abstract
Reliability is the most important factor of distribution system and this system should be operated economically with low customer loads interruption. This is because that the distribution system gives supply to customers from transmission system. There are some power quality issues due to the failures of components in distribution system. Researchers are going on to assess the reliability of the power system. In the power system, reliability evaluation is an important aspect in complete electric distribution system planning and operation. Due to the extreme scale of problem, it is not possible to conduct reliability on complete power system, it is performed independently. Hence, In this paper, the reliability of distribution system is evaluated by using an analytical method is described and is applied to the IEEE RBTS BUS-6. Development of reliability model of distribution system using Electrical Transient Analyzer Program (ETAP) software is developed. And the Distributed Generation is introduced for the improvement of reliability. Reliability indices are such as System Average Interruption Frequency Indices (SAIFI), System Average Interruption Duration Indices (SAIDI), Customer Average Interruption Frequency Indices (CAIFI), Customer Average Interruption Duration Indices (CAIDI), Energy Not Supplied (ENS), Average Service Availability Indices (ASAI), etc. The performance of reliability of the system is shown by these indices
Highlights
The distribution system network which divided into the radial and meshed networks and this system is running in low voltage
The reliability indices of the distribution system of IEEE RBTS BUS-6 feeder wise calculated using Failure Mode and Impact Analysis (FMEA) method and the values of System Average Interruption Frequency Indices (SAIFI), System Average Interruption Duration Indices (SAIDI) and Customer Average Interruption Duration Indices (CAIDI) are shown in the Table.II
The case study-2, the reliability modeling of IEEE RBTS Bus-6 without DG’S using Electrical Transient Analyzer Program (ETAP) software is calculated, and case study-4 the modeling of IEEE RBTS Bus-6 with DG’s using ETAP software is calculated and the obtained results are compared with each other and the comparison of case study-2 and case study-4 is shown in the Table IX And it is observed that the reliability of system is improved when DG is added to the system
Summary
The distribution system network which divided into the radial and meshed networks and this system is running in low voltage. The life span of components are come to end because of outages are up to 80 percent in the distribution system because of system faults and failures of the equipments. Because of these outages inside of the distribution system there is a need of human contribution which resulting in limiting in the no. The interruption rates and duration index, customer period, rate of failure can be changed by reliability indices near load points. The system’s overall performance indices are approximated with the help of Manuscript received on February 20, 2021. Revised Manuscript received on February 28, 2021
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