APPARATUS FOR DETERMINING OPTIMAL CAPACITY OF BATTERY ENERGY STORAGE SYSTEM AND METHOD THEREOF

• Main Authors: KIM, EUNG SANG, JEON, JIN HONG, KIM, SEUL KI, CHOI, HEUNG KWAN, KIM, JONG YUL
• Format: Patent
• Language: English; Korean
• Published: 26.05.2014
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

Disclosed in the present invention are a device for estimating the optimum capacity of a battery power storage system and a method thereof. According to the present invention, the device for estimating the optimum capacity of a battery power storage system includes: an optimum charge/discharge plan unit which establishes an optimum annual charge/discharge plan based on a group of a plurality of pre-selected capacity candidates; a maximum saving rate calculation unit which calculates a maximum annual charge saving rate or a maximum annual charge saving amount for all of the capacity candidates based on the established optimum annual charge/discharge plan; a saving rate curve calculation unit which calculates a maximum saving rate curve for capacity and rated output based on the calculated maximum annual charge saving rate or maximum annual charge saving amount; and an optimum capacity estimation unit which estimates an optimum battery capacity and a rated output of the power storage system from the maximum saving rate.