| 摘要 |
An electrical machine (30) comprises a stator (32) including a plurality of electrical phases (34A, 34B, 34C) and a rotor (42) having a plurality of magnets (44). Each electrical phase (34A, 34B, 34C) comprises at least one coil (36) and power electronics (4OA, 4OB, 40C). There are means (50) to detect an electrical short circuit in a faulted coil (36A) and means (52, 52A, 52B, 52C) to supply an electrical current to the faulted coil (36A) when an electrical short circuit is detected in the faulted coil (36A). The means (52, 52A, 52B, 52C) to supply the electrical current to the faulted coil (36A) comprises one or more un-faulted electrical phases (34B, 34C) of the electrical machine (30). The un-faulted electrical phases (34B, 34C) of the electrical machine (30) are arranged to supply the electrical current to the electrical phase (34A) containing the faulted coil (36A). The power electronics (4OB, 40C) of the un-faulted electrical phases (34B, 34C) are arranged to supply the electrical current from the un-faulted electrical phase (34B, 34C) to the power electronics (40A) of the electrical phase (34A) having the faulted coil (36A). This overcomes a problem of a fault in the DC or AC busbar (60) of the electrical machine (30). |
