Role of Motor Loads and Battery Energy Storage for Active Power Controls by Wind Power.

Active power control of wind turbines is important to emulate the frequency response of conventional power plants. Otherwise, a significant reduction of conventional generation can impact the reliability of bulk power systems. A problem of wind turbines for active power control is that they depend on wind speed which varies in time. To address this issue and enhance system-level inertia and primary frequency response, we study the combined operation of wind power plants along with controllable pumping and battery stations. Specifically, relatively simple models and controls of these assets are developed to simulate and understand their positive influence on frequency. Further, aerodynamic wakes are considered to capture their impacts on active power control of wind turbines. The simulations are supported by experiments conducted at the National Wind Technology Center which is located in Colorado of the United States of America. [ABSTRACT FROM AUTHOR]