| 摘要 |
<p>The present disclosure relates to a rectifier comprising: a converter cell (3-1, 3-n) comprising: a first leg (7) having two reverse-blocking switches (7a, 7b) connected in series and arranged to provide current conduction along the same direction, a second leg (9) having two reverse-blocking switches (9a, 9b) connected in series and arranged to provide current conduction along the same direction, wherein one reverse-blocking switch (7a) of the first leg is connected to a reverse-blocking switch (9a) of the second leg thus defining a first output terminal (11a) of the converter cell (3-1, 3-n), and wherein the other reverse-blocking switch (7b) of the first leg (7) is connected to the other reverse-blocking switch (9b) of the second leg (9) thus defining a second output terminal (11b) of the converter cell (3-1, 3-n), wherein the converter cell (3-1, 3-n) has a first input terminal (13a) between the two reverse-blocking switches (7a, 7b) of the first leg (7) and a second input terminal (13b) between the two reverse-blocking switches (9a, 9b) of the second leg (9), a coil (5) connected to the first input terminal (13a) and the second input terminal (13b), wherein the coil (5) is a winding of an electromagnetic induction device, which coil (5) is arranged to provide a coil current in the converter cell (3-1, 3-n), and a commutator circuit (15) arranged to selectively switch a polarity across the reverse-blocking switches (7a, 7b, 9a, 9b) to set the reverse-blocking switches (7a, 7b, 9a, 9b) in a non-conducting state independently of a magnitude of the coil current. A method of controlling the rectifier is also disclosed herein.</p> |
