| 摘要 |
A thyristor phase-controlled voltage source converter with a bidirectional power flow capability is disposed. The converter has the same structure as the pulse width modulation voltage source converter, however, the switching devices are not self-commutated devices but line-commutated thyristors, and the converter is operated not with the pulse width modulation but with the six-pulse phase-control. The converter provides a bidirectional dc-side current capability, the dc-side voltage can be regulated at its desired value, and the reactive power and harmonics are small, so that the converter can be useful as a utility interface converter especially in high-power voltage source inverter motor drive systems with regenerative braking. |
