直流断路器及其控制方法、电子设备

• Format: Patent
• Language: Chinese
• Published: 27.06.2023
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

本申请提供一种直流断路器及其控制方法，所述直流断路器包括：至少两个通流开关，每个所述通流开关具有第一端口、第二端口和第三端口；分断开关，具有第四端口和第五端口；所述通流开关的第一端口和所述分断开关的第四端口分别与直流电网系统的直流母线相连；所述通流开关的第二端口分别与所述分断开关的第五端口相连；所述通流开关的第三端口分别与直流电网系统的输电线路相连。通过共用价格昂贵的分断开关，实现共直流母线的多条输电线路的故障保护，既降低直流断路器的制造成本，同时又保持易于额定电流开断和重合闸的特点。 Provided are a direct current circuit breaker and a control method therefor. The direct current circuit breaker comprises: at least two through-current switches, wherein each through-current switch has a first port, a second port and a third port; and a breaking switch, which has a fourth port and a fifth port, wherein the first port of the through-current switch and the fourth port of the breaking switch are respectively connected to a direct current bus of a direct current power grid system, the second port of the through-current switch is respectively connected to the fifth port of the breaking switch, and the third port of the through-current switch is respectively connected to a power transmission line of the direct current power grid system. By means of sharing