Abstract
This paper presents an integrated control strategy to achieve fast start-up and enable wide input frequency operation in a three-phase six-switch power factor correction (PFC) converter. Limiting the inrush current with simultaneously minimizing the start-up time is achieved by implementing a nonlinear compensator in the voltage control loop. In addition, the concerning issues regarding unity PFC operation with an accurate reference tracking in a system with wide input frequency variation (typical for more-electric-aircraft) are resolved by a second-order compensator integrated with a state-feedback controller in the current loop. For a proof-of-concept verification, a hardware prototype of 6 kW, three-phase six-switch PFC is developed and tested with the proposed integrated control strategy in a wide source frequency range (360–800 Hz) ac input that shows perfect unity power factor operation throughout. Both the start-up time and inrush current are reduced to <50% of their values in conventional PI compensation.
Original language | English (US) |
---|---|
Article number | 7964708 |
Pages (from-to) | 10841-10852 |
Number of pages | 12 |
Journal | IEEE Transactions on Vehicular Technology |
Volume | 66 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2017 |
Externally published | Yes |
Keywords
- Fast start-up
- Integrated control
- More electric aircrafts
- Power factor correction (PFC)
- Three-phase
ASJC Scopus subject areas
- Automotive Engineering
- Aerospace Engineering
- Electrical and Electronic Engineering
- Applied Mathematics