| 摘要 |
A matrix converter comprises m input nodes 111, 112 and n output nodes 130 and m x n bidirectional switches 121, 122, each connected between an single input node and a single output node. A controller is connected to the bidirectional switches and to selectively control the bidirectional connection between each input node and each output node. The controller is adapted such that a minimum transistor switching period is provided for any given transistor in the matrix converter. Such a minimum transistor switching period may be induced by introducing a delay into a commutation sequence that is typically used to switch an output from a first input to a second input. Each bidirectional switch may comprises a first transistor 211 and a first diode 212 arranged in series and a second transistor 221 and a second diode 222 in series. A Space Vector Modulation (SVM) technique may be used to control the order of switching of the bidirectional connections. The controller may be a field-programmable gate array, FPGA. |
