A Generic and Unified Global-Gyrator Model of Switched-Resonator Converters

Cervera, Alon; Peretz, Mor Mordechai; Ben‐Yaakov, S.

doi:10.1109/tpel.2017.2694858

Cited by 7 publications

(1 citation statement)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…, the same operation will sill transfer the energy from B 4 + B 3 + B 2 to B 1 , which obviously violates the spirit of equalization. Moreover, its balancing efficiency is as low as about 33% because the conversion efficiency of SCC is strictly equal to the ratio of output voltage to input voltage [39,40], and its balancing power will decrease dramatically when the voltage gap is low. The HBLCC equalizer proposed adds an inductor (see Figure 4a) to realize zero-current switching (ZCS), which helps to reduce the switching loss and the electromagnetic interference (EMI), has a very similar operation principle and performance with the SCC based equalizer.…”

Section: Introductionmentioning

confidence: 99%

An Enhanced Multicell-to-Multicell Battery Equalizer Based on Bipolar-Resonant LC Converter

Luo

Kang

et al. 2021

Electronics

View full text Add to dashboard Cite

In a battery management system (BMS), battery equalizer is used to achieve voltage consistency between series connected battery cells. Recently, serious inconsistency has been founded to exist in retired batteries, and traditional equalizers are slow or inefficient to handle the situation. The multicell-to-multicell (MC2MC) topology, which can directly transfer energy from consecutive strong cells to consecutive weak cells, is promising to solve the problem, but its performance is limited by the existing converter. Therefore, this paper proposes an enhanced MC2MC equalizer based on a novel bipolar-resonant LC converter (BRLCC), which supports flexible and efficient operation modes with stable balancing power, can greatly improve the balancing speed without much sacrificing the efficiency. Mathematical analysis and comparison with typical equalizers are provided to illustrate its high balancing speed and good efficiency. An experimental prototype for 8 cells is built, and the balancing powers under different operation modes are from 1.426 W to 12.559 W with balancing efficiencies from 84.84% to 91.68%.

show abstract

Section: Introductionmentioning

confidence: 99%