Multitemporal-spatial-scale flexibility to improve renewable energy accommodation

The capacity of the wider power system for wind power accommodation is the end result of the synergistic characteristics of the power source (“generation”), the power grid (“grid”), and the load (“load”). Research efforts devoted to wind power accommodation capacity, consequently, ought to take a holistic view of the “generation-grid-load” characteristics. This chapter first introduces the factors that influence wind power accommodation on a multispace and timescale. Then, this section proceeds with a quantification of the flexibility contribution of the power system devices to the grid to establish the flexibility balance at the device level. This chapter is devoted to a holistic study of the wind power accommodation capacity of the Mengxi grid from the electrical output and electricity volume perspectives, taking into account both the general “generation-grid-load” characteristics and the features of wind generation operation, conventional generator operation, load, and grid structure. The topics to be contemplated include wind power accommodation capacity in real-time operation with load and frequency modulation, status quo on the utilization of wind generation resources in the Mengxi grid, the level of impact the constraints have on wind power accommodation, and the dissection of potential improvement initiatives and the pertaining sensitivity analyses.