STATIC FREQUENCY CONVERTER AND SUBMODULE OF STATIC FREQUENCY CONVERTER FOR CHARGING OR DISCHARGING OF ENERGY ACCUMULATOR Russian patent published in 2014 - IPC H02M7/483 

FIELD: electricity.

SUBSTANCE: invention relates to converter equipment. In order to obtain submodule (13) for charging or discharging of energy accumulator (22) with capacitor unit (14) and circuit (15) of power semiconductor instruments, which includes connected and disconnected power semiconductor instruments (16, 17), with that, capacitor unit (14) and circuit (15) of power semiconductor instruments are connected to each other so that depending on control of power semiconductor instruments (16, 17) on output terminals (19, 20) of submodule (1) there shaped is voltage decreasing on the capacitor, or zero voltage, with that, submodule (13) provides for individual coordination of a charging process with requirements of the corresponding energy accumulator, and besides, it is cheap, it is proposed to connect energy accumulator (22) to submodule (13) through stabiliser (21) of constant voltage so that stabiliser (21) of constant voltage is connected to capacitor unit (14) and equipped for conversion of capacitor voltage (U_c) decreasing on capacitor unit (14) to charging voltage required for charging of energy accumulator (22), as well as for conversion of discharging voltage (E_L) decreasing at discharge on energy accumulator (22) to voltage (U_c) of the capacitor.

EFFECT: providing individual coordination of a charging process.

10 cl, 2 dwg