Method, device and non-transitory storage medium for scheduling an energy storage system

Abstract

The application discloses a kind of scheduling method, device and nonvolatile storage medium of energy storage system.Therein, the method includes: obtaining total active power target and the state of charge of connected battery cluster;Based on the state of charge of connected battery cluster, the average state of charge of three-phase and system average state of charge are calculated and the phase internal deviation value of multiple H bridge power unit and the phase-to-phase deviation value of three-phase are determined;Based on phase internal deviation value, determine additional voltage amount;Based on phase-to-phase deviation value, determine zero sequence voltage signal;Based on total active power target, according to phase internal deviation value and phase-to-phase deviation value, determine the active power target of multiple H bridge power unit;Based on zero sequence voltage signal, additional voltage amount and active power target, generate voltage control signal.The application solves the current for cascaded energy storage system scheduling is influenced by battery itself factor, the state of charge of battery cluster can appear discrete phenomenon, leading to partial battery cluster overcharge, overdischarge, shorten the technical problem of battery service life.

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