Impact of DG on Electrical Distribution Network Under Contingency Conditions

In today's world, electric utilities are facing many challenges and issues such as rise in electricity demand, poor voltage regulation, lack of investment towards up-gradation of electric infrastructure, poor power quality, unscheduled load shedding etc. The conventional energy sources are the major contributors [up-to 60 to 70%] to meet the present load. Thermal power plants are the foremost power provider in meeting the energy demand. The exponential increase in fuel and coal costs, environmental concerns thermal power plants are losing interest. The non conventional energy sources are gaining attention and playing key role in diminishing above mentioned issues. In this paper, performance of electrical distribution network is tested with and without DG under contingency conditions. The proposed algorithm is tested on seven bus network to verify the most favourable location and size of the DG to boost the overall enhancement of the network performance.