Decentralized Interleaving of Paralleled Dc-Dc Buck Converters
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- University of Minnesota
- University of California at Berkeley
We present a decentralized control strategy that yields switch interleaving among parallel-connected dc-dc buck converters. The proposed method is based on the digital implementation of the dynamics of a nonlinear oscillator circuit as the controller. Each controller is fully decentralized, i.e., it only requires the locally measured output current to synthesize the pulse width modulation (PWM) carrier waveform and no communication between different controllers is needed. By virtue of the intrinsic electrical coupling between converters, the nonlinear oscillator-based controllers converge to an interleaved state with uniform phase-spacing across PWM carriers. To the knowledge of the authors, this work presents the first fully decentralized strategy for switch interleaving in paralleled dc-dc buck converters.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1399842
- Report Number(s):
- NREL/CP-5D00-70299
- Resource Relation:
- Conference: Presented at the 2017 IEEE 18th Workshop on Control and Modeling for Power Electronics (COMPEL), 9-12 July 2017, Stanford, California
- Country of Publication:
- United States
- Language:
- English
Similar Records
Decentralized Interleaving of Parallel-Connected Buck Converters
A Novel Decentralized PWM Interleaving Technique for Ripple Minimization in Series-Stacked DC-DC Converters