BYPASS MODULE Russian patent published in 2012 - IPC H01L25/16 

FIELD: electricity.

SUBSTANCE: bypass module for bypassing of the first and the second inputs of cell converter of module converter contains bistable mechanical relay, power electronic switch, excitation module for switching over of relay and power electronic switch. Bistable mechanical relay is designed with possibility of electrical connection of the first input with the second one, power electronic switch is designed with possibility of electrical connection of the first input with the second one. Bypass module contains energy storage unit for power supply to mechanical relay, power electronic switch and excitation module. Excitation module contains scheme of excess voltage passive detection and when voltage is excessive energy storage unit is charged due to excess voltage. Excitation module contains additional electronic switch which is closed when voltage on energy storage unit exceeds preset value, and excitation module supplies current from energy storage unit to bistable relay and/or to power electronic switch, and excitation module has hysteresis, thus if voltage on energy storage unit is not enough exceeded, current from energy storage unit is still supplied to relay and/or to power electronic switch.

EFFECT: providing converter with maintenance-friendly and reliable cells of converter.

11 cl, 10 dwg