Photovoltaic power station energy storage primary frequency regulation

Do PV systems participate in primary frequency regulation?

From the perspective of control strategies, the participation of PV systems in primary frequency regulation can generally be categorized into two types: load reduction control and coordinated control with PV-energy storage systems.

Can photovoltaic power generation systems with different reserve capacities participate in frequency regulation?

This strategy allows PV power generation systems with different reserve capacities to participate in frequency regulation, optimizing the load reduction controller and ensuring system frequency stability. However, this strategy cannot fully utilize the frequency modulation potential of photovoltaics with different capacities.

Are photovoltaics involved in primary frequency regulation?

Since the frequency of the power system always keep changing, the participation of photovoltaics in primary frequency regulation is time-sensitive. Although many countries have set standards on the response time of photovoltaic frequency regulation, the requirements of these standards are very loose.

What is frequency regulation in electric power system?

Frequency regulation in the electric power system consists of primary control, secondary control or automatic generation control (AGC) and tertiary control . Primary frequency consists of two subparts inertial response and governor response.

Why do PV systems need a primary frequency response (PFR)?

During system imbalance, PFC is not sufficient to limit the frequency excursion due to reduced inertia. To cope with frequency stability challenges, PV systems are required to provide sufficient primary frequency response (PFR) and participate in frequency regulation to reinforce grid security.

Can PVPP participate in power system frequency regulation?

Scholars at home and abroad have successively proposed power reserve control of photovoltaic power generation, virtual synchronous machine technology , etc. Ref. proposes a method that combines inertia evaluation and active power reservation, so that PVPP can participate in power system frequency regulation.