Abstract
This paper introduces the notion of minimum distortion point tracking (MDPT): a control paradigm for input- or output-parallel connected dc-dc converters where switching waveforms are optimally phase shifted to minimize the total dc-bus ripple power. In a sense, MDPT generalizes the ubiquitous concept of interleaving in balanced multiphase dc-dc converters to a broad class of asymmetric input- or output-parallel connected dc-dc converters. Realizing power-quality improvement with control design implies that a drastic reduction in passive input or output filters can be achieved. This paper presents the mathematical characterization of the minimum distortion point (MDP) and a technique for MDPT. An experimental case study for three 600 W dc-dc converters demonstrates a 3× reduction in the bus voltage ripple, convergence to a static MDP in 40 ms, and the ability to dynamically track a time-varying MDP.
Original language | English (US) |
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Title of host publication | 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Print) | 9781538655412 |
DOIs | |
State | Published - Sep 10 2018 |
Event | 19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018 - Padova, Italy Duration: Jun 25 2018 → Jun 28 2018 |
Publication series
Name | 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018 |
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Other
Other | 19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018 |
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Country/Territory | Italy |
City | Padova |
Period | 6/25/18 → 6/28/18 |
Bibliographical note
Publisher Copyright:© 2018 IEEE.