| 发明名称 |
Pulse width modulation control for a multilevel converter |
| 摘要 |
A method for controlling a switching device of a multilevel converter includes dynamically selecting a carrier and generating a switching signal to effect a switching event of the switching device based on a comparison of the dynamically selected carrier with a reference signal. The carrier is dynamically selected from a multiple carriers, each corresponding to one of multiple contiguous bands into which range of a waveform of the reference signal is divided. The carriers corresponding to different bands have differing waveform shapes. The dynamically selected carrier corresponds to the band instantaneously occupied by the reference signal. The dynamic selection is executed whereby whenever there is a transition of the reference signal from a first band to a second band, the carriers for the first and second bands are selected dependent on a slope of the reference signal waveform at the transition. |
| 申请公布号 |
US9184673(B2) |
申请公布日期 |
2015.11.10 |
| 申请号 |
US201414206019 |
申请日期 |
2014.03.12 |
| 申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
Mihalache Liviu |
| 分类号 |
H02P1/00;H02P1/28;H02P3/00;H02P7/06;H02P7/14;H02P23/00;H02P25/00;H02P27/00;H02M7/537;H02P27/14;A61B17/16;B26B19/06;B26B19/00 |
主分类号 |
H02P1/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for controlling a switching device of a multilevel converter, comprising:
dynamically selecting a carrier signal, and generating a pulse width modulation signal to effect a switching event of the switching device based on a comparison of the dynamically selected carrier signal with a reference signal, wherein the carrier signal is dynamically selected from a plurality of carrier signals, each of the plurality of carrier signals corresponding to one of a plurality of contiguous bands into which a range of a waveform of the reference signal is divided, the carrier signals corresponding to different bands having differing waveform shapes, and wherein the dynamically selected carrier signal corresponds to a band that is instantaneously occupied by the reference signal, the dynamic selection being carried out whereby whenever there is a transition of the reference signal from a first band to a second band, the carrier signals selected for the first band and the second band are dependent on a slope of the waveform of the reference signal at the transition. |
| 地址 |
München DE |
