Integrating AGC to Generation Scheduling for Real-Time Optimization of Systems with Significant Renewable Penetrations

In this work, a new scheme for real-time operation of electric grids will be proposed. This scheme builds on the fact that optimal generation scheduling can be converted from an optimization problem that is activated only in discrete instants of time into a feedback control problem that continuously adjusts the generators set points. However, set point adjustment using control-based generation scheduling is not sufficiently fast to maintain frequency deviation within acceptable levels. Hence, automatic generation control (AGC) is still needed to ensure fast action. This work aims to provide a novel integrative approach that combines AGC and control-based generation scheduling into one framework. This framework will be able to achieve efficient system frequency control while continuously operating the system in an optimal manner. Given the targets set forth by the national Transformation Plan 2020 and the Vision 2030 to integrate massive renewable resources into the Saudi power grid, this research will attempt to provide a valuable operational tool that will help the Saudi power grid operator efficiently integrate these renewable resources.