发明授权
- 专利标题： Method for pulse width modulation synchronization in a parallel UPS system
- 专利标题（中）： 并行UPS系统脉宽调制同步方法
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申请号： US12038417申请日： 2008-02-27
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公开(公告)号： US07667351B2公开(公告)日： 2010-02-23
- 发明人: Mohammad Nanda Rahmana Marwali , Kevin Kim Eschhofen , Brian Paul Heber
- 申请人： Mohammad Nanda Rahmana Marwali , Kevin Kim Eschhofen , Brian Paul Heber
- 申请人地址： US OH Columbus
- 专利权人： Liebert Corporation
- 当前专利权人： Liebert Corporation
- 当前专利权人地址： US OH Columbus
- 代理机构： Locke, Lord, Bissell & Liddell LLP
- 主分类号： H02J1/00
- IPC分类号： H02J1/00
摘要：
A method for pulse width modulated pulse synchronization in a parallel UPS system uses the locally measured critical bus voltage to detect a zero crossing and adjust the PWM pulse to coincide with the zero crossing. No communication between the units is required to perform synchronization, and no “master” and “slave” relationship exists to thereby increase the total system reliability.
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