Study of scope and effects of isolated small distributed generation sources and their integration with existing system

Abstract

Electrical energy is a major necessity of every organization of world and the electrical energy demand is increasing day by day. From past few decades, electricity is generated centrally and then distributed over the whole areas of the country. But many problems occur in centrally generated system like huge power loss in transmission line, intermittent switching of load etc and another major issue arising from last few years is severe load shedding in our country. Load shedding, a last stage solution of balancing power generation and consumption, greatly affects the economy of any country because economy is based upon industrial and commercial sector of any country and an electrical power is backbone of any industry. Now a days, industries and other organizations place their own local generation due to severe loadsheding. These organizations and industries have some standby power to meet their future needs and these local generations are in the form of renewable as well as nonrenewable sources, also termed as distributed generation sources. In this paper, we made an analysis for integration of different distributed generation sources with existing distribution system feeder. For this we made a survey of some selected organizations and collected data of their own total power production and standby power. After this Electrical Transient Analysis Program (ETAP) software is selected for analysis. Whole model of the distribution feeder and standby power is designed in the software. These distributed generation sources (DGS) are then integrated and fed into the power system. After successful completion of this whole modeling, analysis process has done. Analysis of voltage profile, losses in the power systems, reliability and at the end economic analysis and feasibility study is made. The results of these analyses are discussed in detail in this paper.