Demand response and wind farm integrated economic dispatch in power system

The ever-increasing penetration of intermittent renewable energy resources pushes the grid to prepare more reserves to meet the supply and demand balance. Demand response (DR) is an efficient strategy to reduce the overall load at peak times. In order to fully excavate the application of DR, make DR capable to support the operation of the grid actively at all times, this paper builds a DR and wind farm integrated economic dispatch model. The objective is to minimize the total operation costs, which consist of fuel cost, startup cost, Green House Gas (GHG) emission cost and DR cost. The DR maximum participating time, DR ramp rate constraint are considered. A system with 10 traditional units, 1 large-scale intermittent renewable energy resources generation unit, 3 types of DR including interruptible load, direct load control and load as capacity resource is selected to verify the proposed model. 4 scenarios are selected for the results comparison, the corresponding DR penetration is separately 0%, 10%, 20% and 30%.