发明名称 |
Modular static power converter connected in a multi-level, multi-phase, multi-circuit configuration |
摘要 |
In the particular embodiments described, an unlimited voltage static power converter includes an array of multi-level phase drivers consisting of a plurality of H-bridge power modules connected in series. The midpoint node of the series-connected power semiconductors is connected to corresponding midpoint nodes in adjacent H-bridges to achieve a desired high output voltage using available power switch ratings. A three-dimensional multi-level, multi-phase, multi-circuit array of H-bridges permits the use of the static power converter for high power applications, while providing a high degree of power quality. The power semiconductor switches are operated in accordance with a two-dimensional interleaved pulse width modulation algorithm which produces a waveform with a switching frequency that can be more than an order of magnitude higher than the switching frequency of a single power switch. PWM complementary triangle carrier waves are used for individual PWM control of each H-bridge in each multi-level phase driver, resulting in a two-dimensional interleaved control algorithm. Injection of harmonic or non-harmonic content into the PWM reference waveform further reduces harmonic and non-harmonic content of the output voltage waveforms. Part-load efficiency is increased using unique load partitioning methods, five of which are described herein.
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申请公布号 |
US5933339(A) |
申请公布日期 |
1999.08.03 |
申请号 |
US19980046076 |
申请日期 |
1998.03.23 |
申请人 |
ELECTRIC BOAT CORPORATION |
发明人 |
DUBA, GREG A.;THAXTON, EDGAR S.;WALTER, JOHN |
分类号 |
H02M7/48;H02M7/49;H02P27/16;(IPC1-7):H02M7/00 |
主分类号 |
H02M7/48 |
代理机构 |
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