Effects of Interruptible Load Participation in Reserve markets Using Stochastic and deterministic Security Analysis

In a deregulated electric power system, multiple Markets of energy and reserve exist with various power supply agent. This paper focuses on the development of a model for interruptible load (IL) participation within the operating reserve where energy and reserve are jointly dispatched. In this paper a stochastic mixed-integer linear programming model is utilized. Both spinning reserve and interruptible load are taken into account as the operating reserve services. The characteristicsof the procurement of interruptible load such as locational aspect of the IL, maximum interrupted time and minimum connected time, different offer in each IL’s agent, maximum and minimum IL’s quantity participation are explicitly considered. The main purpose of this paper is to determine a sufficient amount of spinning reserve for a power system that considers the probabilistic behavior of system’s components such as outages of generating units and transmission lines.

Keywords:

Expected load not served (ELNS) , Interruptible Loads (ILs) , mixed-integer linearprogramming (MILP) , Spinning reserve , Stochastic optimization , transmission limits , value of lost load (VOLL)