Method for driving emergency generator using energy storage system

摘要

The present invention relates to a method for driving an emergency generator using an energy storage system in which, when the power of an emergency generator is applied, an energy storage system is allowed to handle the load demand, thereby driving the emergency generator at maximum efficiency. For this purpose, the method for driving an emergency generator using an energy storage system (ESS), including, after an emergency generator has been applied and until the emergency generator reaches a preset maximum efficiency driving state, handling, by an ESS, load demand using previously stored power, and, when the emergency generator reaches the preset maximum efficiency driving state, maintaining the driving of the emergency generator in the maximum efficiency driving state.

主权项

1. A method for driving an emergency generator using an energy storage system (ESS) in a power supply system, in which the ESS and the emergency generator are installed between a commercial power source and a plurality of loads, comprising the following steps:
applying the emergency generator when a supply of power is shut off; driving the emergency generator at a preset maximum driving efficiency even though an amount of generated power of the emergency generator is smaller or larger than a load demand; and maintaining driving of the emergency generator in a maximum efficiency driving state, although the load demand is variable while driving the emergency generator at the preset maximum driving efficiency, wherein the ESS handles an amount of power corresponding to a difference between the variable load demand and the amount of power generated by the emergency generator.