What is the principle of peak and frequency regulation in energy storage power stations

Can battery energy storage be used in grid peak and frequency regulation?

To explore the application potential of energy storage and promote its integrated application promotion in the power grid, this paper studies the comprehensive application and configuration mode of battery energy storage systems (BESS) in grid peak and frequency regulation.

What is frequency regulation?

Frequency regulation is the process of balancing the supply and demand of electricity to maintain this consistent frequency. Frequency regulation involves real-time adjustments to the power grid to counteract fluctuations in electricity supply and demand. Here’s a closer look at how this process works:

Why is frequency regulation important in modern power system?

In modern power system, the frequency regulation (FR) has become one of the most crucial challenges compared to conventional system because the inertia is reduced and both generation and demand are stochastic.

What is the multi-timescale regulation capability of a power system?

The multi-timescale regulation capability of the power system (peak and frequency regulation, etc.) is supported by flexible resources, whose capacity requirements depend on renewable energy sources and load power uncertainty characteristics.

What is the power and capacity of Es peaking demand?

Taking the 49.5% RE penetration system as an example, the power and capacity of the ES peaking demand at a 90% confidence level are 1358 MW and 4122 MWh, respectively, while the power and capacity of the ES frequency regulation demand are 478 MW and 47 MWh, respectively.

Are battery energy storage systems a practical and flexible resource?

More flexible resources are needed to supplement and complement regulation to maintain the safe and stable operation of the grid . Battery energy storage systems (BESS), as a practical and flexible regulation resource , have been widely studied and applied for the characteristics of energy time-shifting and power fast-accurate response .