Consideration of Hourly Flexible Ramping Products in Stochastic Day-Ahead Scheduling of Integrated Wind and Storage Systems

摘要

Increasing share of variable nature wind energy sources impose several technical challenges to power system operation as it is difficult to forecast its power output due to wind turbine provides intermittent power. Compressed air energy storage (CAES) as a flexible source with high ramp rate could be an alternative solution to reduce wind power production uncertainty effect on power system operation cost. Also, California independent system operator (CAISO) has designed a new market for flexible ramping products in order to verify the reliability of power system processes, enough ramp ability should exist for meeting the variability of net load in real-time dispatch stages. This study introduces a problem of stochastic security-constrained unit commitment (SCUC) with the integration of CAES unit considering flexible ramping products to manage the variability of power generated by wind turbines. A six-bus system considered to perform numerical tests and show the high performance of the introduced model.