BATTERYBALANCE SYSTEM AND OPERATION METHOD THEREOF

• Main Author: Chiu, Shao-Wei
• Format: Patent
• Language: English
• Published: 07.11.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

The present invention provides a battery balance system which includes a plurality of battery modules and a control module. Each of the battery modules includes a battery, a passive power adjustment unit and an active power adjustment unit. The passive power adjustment units and the active power adjustment units are coupled to the batteries. The control module is coupled to the battery modules, and is configured to monitor charging powers of the batteries. In a charging period, when a charging power of a first battery of a first battery module of the battery modules is higher than a charging power of a second battery of a second battery module of the battery modules, the control module enables the passive power adjustment unit of the first battery module. The control module determines whether or not to enable the active power adjustment unit of the first battery module according to a charging power difference between the first battery and the second battery.