Environmental-economic dispatch of power system in the presence of wind generation

The presence of wind generation with intermittent and low inertia features increases the need for modification in power system operation and planning. One of the main problems of wind integration is the effect of wind on system frequency. This paper addresses the environmental-economic generation dispatch of the wind integrated system while considering the frequency stability condition as a constraint in the optimization problem. The proposed frequency stability constraint is represented by the minimum inertia required to keep the frequency deviation within a safe limit. A non-dominated sorting genetic algorithm II is utilized to investigate the multi-objective generation dispatch problem in the presence of stability constraint. Environmental-economic generation dispatch will be examined on the modified IEEE 30-bus system to demonstrate the impact of the proposed idea.