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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kai Zhang Jian Xiong Yong Kang Jian Chen |
| Copyright Year | 2005 |
| Description | Author affiliation: Huazhong Univ. of Sci. & Technol., Wuhan (Kai Zhang; Jian Xiong; Yong Kang; Jian Chen) |
| Abstract | Based on an in-depth analysis of the DC imbalance problem of UPS inverters, an observation is made that in most cases where instantaneous voltage feedback control is applied, the control algorithm itself is the most significant cause of DC imbalance since it inevitably generates DC bias in the output PWM gating signals. This situation becomes even worse when some integral action is included in the control algorithm, such as a PI/PID controller, or a repetitive controller, which is integral in nature. With this understanding, a simple DC-bias rejection algorithm is proposed, which needs no extra sensors, and can be seamlessly integrated into a repetitive controller. Experimental results verified its effectiveness. An alternative form of the algorithm is also provided for non-repetitive-control cases |
| Starting Page | 180 |
| Ending Page | 184 |
| File Size | 1660324 |
| Page Count | 5 |
| File Format | |
| ISBN | 0780392965 |
| DOI | 10.1109/PEDS.2005.1619682 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-11-28 |
| Publisher Place | Malaysia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Uninterruptible power systems Pulse width modulation inverters Voltage control Capacitors DC generators Signal analysis Algorithm design and analysis Feedback control Signal generators Three-term control repetitive control DC imbalance rejection UPS inverter |
| Content Type | Text |
| Resource Type | Article |
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