Abstract

Increasing penetration levels of wind energy have brought new and challenging problems to power system operation and control, often manifested as a dramatic increase in the magnitude and speed of system ramping requirements. Wind energy will also be more susceptible for curtailments during night and early morning hours to avoid situations of excess generation levels. Demand Response (DR) participation is an important and attractive solution expected to mitigate the consequences of integrating future wind energy. In this context, this paper highlights the significance of integrating DR programs in the day-ahead markets and proposes new modified schemes suitable for mitigating the consequences of integration wind energy. DR programs under investigation includes; Load Shifting Program (LSP), Demand Bidding Program (DBP), and Dynamic Pricing Programs (DPPs). The Security Constrained Unit Commitment (SCUC) problem is used to represent the day-ahead wholesale market and to determine optimal energy dispatch of thermal generation units and available DR resources. The effects of DR participants are demonstrated using the IEEE - Reliability Tests System (RTS) scheduled over 24-hour period. The results show that effective participation of DR programs in wholesale markets will provide valuable resources for mitigating the difficulties of integrating current and future wind power generations.

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