Frequency regulation benefits of the Aarhus energy storage power station in Denmark

What is a flexible regulation scheme for energy storage systems?

Proposing a flexible regulation scheme for energy storage systems involved in frequency control, and dynamically adjusting synthetic inertia and damping coefficients according to state of charge (SOC) levels.

Can energy storage systems emulate the inertial response of synchronous generators?

To address these challenges, energy storage systems can be controlled to emulate the inertial response of synchronous generators by providing virtual inertia, thereby enhancing the frequency stability of power systems . This approach has been widely recognized and adopted in modern low-inertia power systems.

Can distributed energy resources provide inertial and primary frequency support?

Authors to whom correspondence should be addressed. As renewable energy penetration increases, maintaining grid frequency stability becomes more challenging due to reduced system inertia. This paper proposes an analytical control strategy that enables distributed energy resources (DERs) to provide inertial and primary frequency support.

Can SoC energy storage improve grid frequency response performance?

Response Mode Incorporating SOC Energy storage devices are capable of significantly improving the system’s equivalent inertia and damping via virtual inertia and droop control, thereby improving grid frequency response performance. However, in real-world scenarios, the capacity of energy storage systems is subject to inherent limitations.