Virtual synchronous control method and apparatus, device, and storage medium for energy storage system

Abstract

A virtual synchronous control method and apparatus are described. The method includes: controlling an output voltage of a direct-current energy storage valve based on a measured value of an output electrical signal on a direct-current side of a voltage source converter and a reference value of the output voltage of the direct-current energy storage valve; and further controlling an output signal on an alternating-current side of the voltage source converter based on a measured value of a grid connection point electrical signal and a reference value of the grid connection point electrical signal of the voltage source converter. Embodiments realize a virtual synchronous control method for independently controlling the voltage source converter and the direct-current energy storage valve in the energy storage system, and the method is applicable to virtual synchronous control of high-voltage direct-current directly-connected energy storage systems.

Dependencies are inferred from the claim text.