| Issue |
MATEC Web of Conferences
Volume 55, 2016
2016 Asia Conference on Power and Electrical Engineering (ACPEE 2016)
|
|
|---|---|---|
| Article Number | 01003 | |
| Number of page(s) | 7 | |
| Section | Power Converter Topologies and Control Strategy | |
| DOI | https://doi.org/10.1051/matecconf/20165501003 | |
| Published online | 25 April 2016 | |
Inductor Compensation in Three Phase PFC Control with Decoupling the Input Voltage and Bus Voltage
Huazhong University of Science and Technology, School of Mechanical Science and Engineering, 430074 Wuhan, China
a Corresponding author: andylaw_lg@qq.mail
As the nonlinear structure of the boost ac/dc topology, the PFC is difficult to be controlled. The average state space theory has revealed that the choke current is determined by duty-ratio coupled with input voltage and bus voltage, which makes the high-performance sine-wave current track control more challenging. To remove disturbing variables and reduce the zero-crossing distortion, the decoupling control strategy is presented. Also, it is shown in this paper that the variable inductance has a great influence on PFC and THDI. As the inductor in boost converter varies with the current, a compensating coefficient of current is also proposed. The decoupling strategy and the inductor compensation strategy are implemented on a UPS with three phase input voltage. Numerical simulation and experimental results has indicated the high-performance of these control strategy.
© Owned by the authors, published by EDP Sciences, 2016
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