期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 27, 期 8, 页码 3782-3794出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2012.2187073
关键词
Constant-current (CC) charging; constant-voltage (CV) charging DSP; phase-shift full-bridge (PSFB); power factor correction (PFC); probabilistic fuzzy neural network (PFNN)
资金
- National Science Council of Taiwan [NSC 99-2218-E-008-003]
A DSP-based probabilistic fuzzy neural network (PFNN) controller to control a two-stage ac-dc charger is proposed in this study. The charger is composed of an ac-dc boost converter with power factor correction and a phase-shift full-bridge dc-dc converter. Moreover, the designed charger adopts a constant-current and constant-voltage (CC-CV) charging strategy to charge lithium-ion battery packs. To improve the transient of voltage regulation during load variation, a PFNN controller is proposed to replace the traditional proportional-integral controller. Furthermore, the discontinuous charging voltage and current during the transition between the CC and CV charging modes can also be reduced significantly using the proposed PFNN controller. The network structure and the online learning algorithms of the PFNN controller are introduced in detail. In addition, the control performances of the proposed PFNN control system for CC-CV charging are evaluated by experimental results.
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