An Investigation into the Role of Gas Turbines in Supporting Renewable Energy Integration

The integration of renewable energy sources is becoming a growing trend in power systems recently. With advantages of unlimited supply, no fuel cost, and reduced environmental impact, renewable energy resources are the promising candidates for replacing fossil fuels. However, the presence of renewable energy resources in the system brings some challenges to system stability and reliability. To support the system against the inherent intermittent and non-dispatchable features of renewable energy, gas turbines with relatively short commissioning time and quick response capabilities are increasingly integrated into grid. This paper closely examines the impacts of gas turbines on system frequency stability. The effects of gas turbines with different ramping capabilities are also investigated. The mathematical model and simulation model will be developed and implemented to show the impact of gas turbine on system load frequency control.