Solar container steady-state frequency support capability

What is active frequency support capability (AFSC) of PV stations?

With the increasing penetration of photovoltaic (PV) in power grid, to cope with the deteriorating frequency security of the system, PV stations are required to participate in frequency regulation by grid codes. Knowing the active frequency support capability (AFSC) of PV stations is essential for strategy design of frequency response.

What factors affect the active frequency support capability of PV power stations?

According to the results shown in Fig. 6, the key indicators that affect the active frequency support capability of PV power stations are the active power reserve capability, the response time and regulation time of the frequency response process.

What is a low-frequency preventive control strategy for Island power systems?

For frequency security, Wu et al. 12 considered the maximum frequency deviation of the power system frequency regulation process and developed a low-frequency preventive control strategy for island power systems including PV stations to ensure that the system has sufficient AFSC for automatic, stable, and economical operation of the system.

Do inverter-based resources support frequency and voltage stability?

Liu et al. 27 proposed an evaluation index system for the frequency and voltage support capability of inverter-based resources from the perspective of frequency and voltage stability, and conducted simulations in the IEEE 39-bus test system to verify the effectiveness of the index system.

Why is frequency stability important in interconnected power systems?

In interconnected power systems, frequency stability is an important indicator reflecting power quality, mainly representing the balance state of active power in power systems (Xue et al., 2024; Yin et al., 2024; Grebla et al., 2020; Mei et al., 2024).

How to control the frequency stability of new energy resources in China?

The new power system with new energy resources as the main body in China requires that the new energy resources have the ability of frequency regulation. For the centralized new energy resources, the traditional centralized control is used to participate in frequency stability control. The control method can be categorized into two aspects.