| 摘要 |
A power supply apparatus including: N+m power source conversion modules, where N power source conversion modules are main power source conversion modules; a power source conversion module includes a detection and switching unit and a conversion unit, where the detection and switching unit is separately connected to an output end of a first alternating current power source and an output end of a second alternating current power source, and the detection and switching unit is configured to monitor in real time a working state of the first alternating current power source and a working state of the second alternating current power source, close a channel between the conversion unit and one power source, which is in a normal working state, of the first alternating current power source and the second alternating current power source. |
| 主权项 |
1. A power source conversion module, comprising:
a detection and switching unit; and a conversion unit, wherein the detection and switching unit is separately connected to an output end of a first alternating current or a high-voltage direct current (HVDC) power source and an output end of a second alternating current or HVDC power source, wherein the detection and switching unit is further connected to the conversion unit, wherein the conversion unit is connected to a load, wherein the detection and switching unit is configured to:
monitor in real time a working state of the first alternating current or HVDC power source and a working state of the second alternating current or HVDC power source;close a channel between the conversion unit and one alternating current or HVDC power source, which is in a normal working state, of the first alternating current or HVDC power source and the second alternating current or HVDC power source; andshut off a channel between the conversion unit and the other alternating current or HVDC power source of the first alternating current or HVDC power source and the second alternating current or HVDC power source, and wherein the conversion unit is configured to convert a voltage output by the one alternating current or HVDC power source, which is in a normal working state, in the channel closed by the detection and switching unit into a direct current voltage required by the load, wherein the detection and switching unit comprises:
a detection subunit;a control subunit;a first switching subunit; anda second switching subunit, wherein the detection subunit is separately connected to the output end of the first alternating current or HVDC power source and the output end of the second alternating current or HVDC power source, wherein the detection subunit is further connected to the control subunit, wherein the detection subunit is configured to detect in real time a voltage value of the first alternating current or HVDC power source and a voltage value of the second alternating current or HVDC power source, and send the detected voltage value of the first alternating current or HVDC power source and the detected voltage value of the second alternating current or HVDC power source to the control subunit, wherein the control subunit is separately connected to the detection subunit, the first switching subunit, and the second switching subunit, wherein the control subunit is configured to monitor in real time, according to the voltage value of the first alternating current or HVDC power source, whether the first alternating current or HVDC power source is in a normal working state, and monitor in real time, according to the voltage value of the second alternating current or HVDC power source, whether the second alternating current or HVDC power source is in a normal working state, wherein the first switching subunit is separately connected to the first alternating current or HVDC power source, the conversion unit and the control subunit, wherein the second switching subunit is separately connected to the second alternating current or HVDC power source, the conversion unit and the control subunit, wherein the control subunit is further configured to:
send, according to a working state of the first alternating current or HVDC power source and a working state of the second alternating current or HVDC power source, a closing signal to the first switching subunit or the second switching subunit connected to one alternating current or HVDC power source, which is in a normal working state, of the first alternating current or HVDC power source and the second alternating current or HVDC power source;send a shutoff si nal to the first switching subunit or the second switching subunit connected to the other alternating current or HVDC power source, so as to close the channel between the conversion unit and the one alternating current or HVDC power source which is in the normal working state, of the first alternating current or HVDC power source and the second alternating current or HVDC power source; andshut off the channel between the conversion unit and the other alternating current or HVDC power source of the first alternating current or HVDC power source and the second alternating current or HVDC power source, wherein the first switching subunit is configured to shut off or close the channel between the first alternating current or HVDC power source and the conversion unit according to a control signal sent by the control subunit, wherein the second switching subunit is configured to shut off or close the channel between the second alternating current or HVDC power source and the conversion unit according to the control signal sent by the control subunit, wherein the detection and switching unit further comprises a shutoff confirming subunit, wherein the shutoff confirming subunit is separately connected to the control subunit, the first switching subunit, the second switching subunit and the conversion unit, wherein the control subunit is further configured to:
first send the shutoff signal to the first switching subunit or the second switching subunit connected to one alternating current or HVDC power source, which is in an abnormal working state, of the first alternating current or HVDC power source and the second alternating current or HVDC power source;then send a shutoff confirming indication signal that comprises a channel identifier to the shutoff confirming subunit; andsend the closing signal to the first switching subunit or the second switching subunit connected to the other alternating current or HVDC power source of the first alternating current or HVDC power source and the second alternating current or HVDC power source after receiving a shutoff confirming signal sent by the shutoff confirming subunit, wherein the channel identifier is used to identify the channel between the first alternating current or HVDC power source and the conversion unit, or the channel between the second alternating current or HVDC power source and the conversion unit, and wherein the shutoff confirming subunit is configured to:
determine whether a channel corresponding to the channel identifier is shut off after receiving the shutoff confirming indication signal sent by the control subunit; andsend a shutoff confirming response signal to the control subunit after it is determined that the channel corresponding to the channel identifier is shut off. |
