Photovoltaic energy storage power station operation mode

What is the optimal operation method for photovoltaic-storage charging station?

Therefore, an optimal operation method for the entire life cycle of the energy storage system of the photovoltaic-storage charging station based on intelligent reinforcement learning is proposed. Firstly, the energy storage operation efficiency model and the capacity attenuation model are finely modeled.

What is the scheduling strategy of photovoltaic charging station?

There have been some research results in the scheduling strategy of the energy storage system of the photovoltaic charging station. It copes with the uncertainty of electric vehicle charging load by optimizing the active and reactive power of energy storage .

What is a photovoltaic charging station?

Photovoltaic charging stations are usually equipped with energy storage equipment to realize energy storage and regulation, improve photovoltaic consumption rate, and obtain economic profits through “low storage and high power generation” .

What is a steady-state operation mode in a grid-connected inverter?

In this operation mode, the capacity of the energy storage configuration is small, and it is mainly used to smooth out the random fluctuation of PV output, so the output power of the grid-connected inverter in steady-state operation should track the PV output value after the energy storage is smooth out.

How is a PV-storage system operated in constant power mode?

The PV-storage system is operated in constant power mode with the VSG inertia parameter of J = 2 × 10 4 kg m 2 and the power reference value of Pref = 150 kW. The simulation results of each power curve during steady-state operation and load step disturbance are shown in Fig. 7.

How to optimize the energy storage system?

The uncertainty of photovoltaic power generation output, electric vehicle charging load, and electricity price are considered to construct the IRL model for the optimal operation of the energy storage system. A double-delay deep deterministic policy gradient algorithm are utilized to solve the system optimization operation problems.