公开(公告)号：KR1020140135419A

公开(公告)日：2014-11-26

申请号：KR1020130055639

申请日：2013-05-16

Applicant: 포항공과대학교 산학협력단

Inventor： 강봉구 ,  성창현 ,  최형진 ,  윤호영 ,  조민기 ,  정유채 ,  이경민

IPC: H02J7/04 ,  H02J7/00

CPC classification number: H02J7/0019 ,  H02J7/04

Abstract: The present invention relates to a technology appropriate for performing multi-battery cells balancing using an LC series resonant circuit. A battery cell balancing circuit using an LC series resonant circuit comprises: a first battery module which includes a battery cell module including a plurality of battery cells connected in series, a series resonant circuit storing electric energy recovered from a corresponding battery cell of the battery cell module and supplying the electric energy to the corresponding battery cell of the battery cell module, a switch unit providing an electric energy recovery path to charge a capacitor of the series resonant circuit with the electric energy recovered from the corresponding battery cell of the battery cell module and providing an electric energy supply path to supply the stored electric energy to the corresponding battery cell of the battery module, and a winding for a transformer connected to the capacitor in parallel; and second to N^th battery modules which have the same composition as the first battery module. The battery cell modules of the first to N^th battery modules are connected in series, the windings included in the first to N^th battery modules are magnetically coupled, and levels of the electric energy stored in or discharged from the capacitors of the first to N^th battery modules are equally changed.

Abstract translation: 本发明涉及适用于使用LC串联谐振电路进行多电池单元平衡的技术。 使用LC串联谐振电路的电池单元平衡电路包括：第一电池模块，其包括具有串联连接的多个电池单体的电池单元模块，串联谐振电路，存储从电池单元的相应电池单元回收的电能 模块，并将电能提供给电池单元模块的相应电池单元;开关单元，提供电能回收路径，以便从电池单元模块的相应电池单元回收的电能对串联谐振电路的电容器充电 并且提供电能供给路径以将存储的电能提供给电池模块的相应电池单元，以及并联连接到电容器的变压器的绕组; 以及与第一电池模块具有相同组成的第二至第N个电池模块。 第一至第N个电池模块的电池单元模块串联连接，包括在第一至第N个电池模块中的绕组被磁耦合，并且存储在第一至第N电池模块的电容器中的电能的电平 到第N个电池模块同样改变。

公开(公告)号：KR1020140093404A

公开(公告)日：2014-07-28

申请号：KR1020130005671

申请日：2013-01-18

Applicant: 포항공과대학교 산학협력단

Inventor： 성창현 ,  이경민 ,  정유채 ,  강봉구

IPC: H02J7/04 ,  H01M10/44

CPC classification number: H02J7/0016 ,  H01M10/441 ,  H01M2010/4271 ,  H02J7/0019 ,  H02J7/0021 ,  H02J7/0022

Abstract: The present invention relates to a technology capable of increasing the usage time of a battery cell by entirely or individually controlling the charging or discharging of a multi-battery cell using LC serial resonance in a module of a multi-battery cell structure. For the purpose mentioned above, the present invention includes: a battery module which includes a plurality of battery cells which are serially connected; a serial resonant circuit which performs a serial resonant function by including an inductor and a capacitor which are serially connected; and first to third switch units which set a supply energy path and a recovery electric energy path between the battery module and the serial resonant circuit.

Abstract translation: 本发明涉及一种技术，其能够通过在多电池单元结构的模块中完全或单独地控制使用LC串联谐振的多电池单元的充电或放电来增加电池单元的使用时间。 为了上述目的，本发明包括：电池模块，其包括串联连接的多个电池单元; 串联谐振电路，其通过包括串联连接的电感器和电容器来执行串联谐振功能; 以及在电池模块和串联谐振电路之间设置供电能量路径和恢复电能路径的第一至第三开关单元。