Congestion Management in Local Market Considering the Payback Effect

The proliferation of distributed energy resources is gaining momentum and it brings several challenges for the power system such as network congestions. To solve network congestion, conventional grid reinforcements were used. However, with the introduction of demand flexibility, the system operators can now defer the grid reinforcements and chose an alternate solution. By using demand flexibility and providing flexibility services, the load of the consumer can be shifted to other times. However, this shifting can also bring different challenges such as creating new peaks. This paper aims to solve the network congestion by using flexibility services attained from the consumers while considering the energy payback effect to avoid further peaks. In this work, an IEEE 13- bus system is employed and modeling of the bidding model along with payback conditions are presented. In the end, the cost incurred by the system operator for providing flexibility is calculated using different case studies.