Allocation and Sizing of the Distributed Generation for Power System Instability Prevention

Supplying customers regularly and network stability are some of the most essential tasks for power suppliers companies. In this paper, distributed generation resources (DGs) are used to increase the stability of the transmission network when the most critical line is eliminated. One of the major works in this paper is calculating the revenue of the network operators due to a reduction in purchasing real power from generation companies since using distributed generation resources. Moreover, the cost of these resources and the cost of environmental pollution, are all considered in this study. Categorizing the load into the three-time span, light, medium, and peak load, with variation in consumption, along with considering variation in purchasing power tariffs in the mentioned category, inflation rates, and annual interest rates, and the proper lifetime expectancy of distributed generation resources are other significant aspects of this paper. Mat-Power, in MATLAB, is used for load power flow equations and other network computations to find the optimum location and capacity of distributed resources. A 14 IEEE bus Reliability Test System is simulated to indicate the network stability of the power system in the presence of distributed generation sources.