Generating method of three-level harmonic-trapping width-modulation pulse and pulse generator |
Title： |
| Generating method of three-level harmonic-trapping width-modulation pulse and pulse generator |
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Application Number： |
02121111 |
Application Date： |
2002/06/07 |
Announcement Date： |
2002/12/11 |
Pub. Date： |
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Publication Number： |
1384592 |
Announcement Number： |
1159834 |
Grant Date： |
2004-7-28 |
Granted Pub. Date： |
2004-7-28 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H02M 7/521, H02M 7/525, H02M 7/527 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Xie Xiaorong, Zhang Xinqiang, Chen Yuanhua |
Key Words： |
Generating method, three-level, harmonic-trapping width-modulation pulse, pulse generator |
Abstract： |
The present invention relates to AC/DC/AC frequency-varying speed regulating technology. The present invention includes the steps of: generating switching pulse sequence in required format based on the required switching function modulation ratio and pulse frequency, receiving and judging the control command word of monitoring host computer, generating and sending six channel pulse sequence for normal control based on the required modulation ratio and pulse frequency and other steps. Then, is proposed three-level harmonic-trapping modulation pulse generator based digital signal processor. The present invention is suitable for high and middle voltage frequency-varying speed regulator and can elimiante high order harmonics, reduce switching loss, prolong the life of switching device and ensure enough output power. |
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 Relevancy information |
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| Last Update |
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2008-4-17 |
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Selected patents owned by Tsinghua University filed in 2005 are loaded. |
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2008-3-31 |
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Selected patents owned by Tsinghua University filed in 2006 and 2007 are load. |
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