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Output impedance of PWM UPS inverter-feedback vs. filters

youthb 添加于 2011-3-7 15:07 | 4558 次阅读 | 0 个评论

作者
Kusko A, Galler D, Medora N
摘要
The output impedance of an uninterruptible power supply (UPS), which determines the voltage distortion caused by switchmode power supplies, rectifiers, and other nonlinear loads, is reviewed. Step-wave inverters that use shunt filter traps to attenuate the voltage harmonics and thereby present a low impedance to the harmonic load currents of the same order are discussed. Another approach to reducing the output impedance of pulse-width modulation (PWM) inverters, using the negative-feedback technique of the amplifier, is also discussed. Conclusions concerning the use of filters and feedback in the design of PWMs for UPSs are summarized
详细资料
- 文献种类:会议
- 会议: Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting
- 期卷页: 1990年 1044-1048页
- 出版社: IEEE
- 位置: Seattle, WA, USA
- ISBN: 0-87942-553-9
标签

Output impedance PWM UPS inverter feedback filters
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