Digital Control and Phase Governing of Interleaved Multistage Hybrid Boost Capacitor Charger for Improved Efficiency and Power Density

Daniel Beniaminson, Bar Halivni, Michael Evzelman, Alon Kuperman, Mor Mordechai Peretz

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper introduces a digitally controlled multiphase multistage hybrid boost converter (MMHBC) for high voltage capacitor charging applications. Rapid capacitor charging control approach is presented, and topological variations to improve efficiency are examined. The controller provides tight output current regulation, while maintaining real-time current balancing capabilities for superior thermal distribution and converter efficiency. The MMHBC is capable of rapid capacitor bank charging to high voltage by forcing maximum output current at the first stage, which translates into maximal output power during the whole charging period. The controller includes a system governor unit which facilitates additional control aspects for multiphase operation such as phase shedding, soft-start mechanism, and system protection. SMPS operation, rapid capacitor charging, and topological improvements are validated experimentally on a four-phase 12V-to-300V multiphase prototype with a maximum output power of 250W and power density of 2.5kW/Liter.

Original languageAmerican English
Title of host publication2023 IEEE 24th Workshop on Control and Modeling for Power Electronics, COMPEL 2023
ISBN (Electronic)9798350316186
DOIs
StatePublished - 1 Jan 2023
Event24th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2023 - Ann Arbor, United States
Duration: 25 Jun 202328 Jun 2023

Publication series

Name2023 IEEE 24th Workshop on Control and Modeling for Power Electronics, COMPEL 2023

Conference

Conference24th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2023
Country/TerritoryUnited States
CityAnn Arbor
Period25/06/2328/06/23

Keywords

  • Capacitor Charger
  • Digital Control
  • Hybrid Boost
  • Multiphase

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Control and Optimization
  • Modelling and Simulation

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