| 摘要 |
The purpose of the present invention is to appropriately perform, in a battery assembly control system, processing for eliminating the voltage difference occurring when a plurality of battery control units are connected in parallel. The battery assembly control system (10) comprises a master controller (20), a power converter management unit (24), and power converters (26). Five battery units (40) are connected in parallel to the charging and discharging main bus (28) of one of the power converters (26). A switch board (50), including a plurality of second protection resistors (54), a plurality of switches (56), and a first protection resistor (58), is provided between each of the battery units (40) and the charging and discharging main bus (28). The second protection resistors (54) have a positive temperature coefficient and have a function of reducing the voltage difference among the four battery pack columns (44) connected in parallel to the sub-bus (52) of each of the battery units (40). The first protection resistor (58) has a function of preventing excess current. |
