Neuro‐fuzzy controller for battery equalisation in serially connected lithium battery pack

Nguyen, Thi Thu Ngoc; Yoo, Hyon-Gi; Oruganti, Sai Kiran; Bien, Franklin

doi:10.1049/iet-pel.2013.0657

Cited by 28 publications

(20 citation statements)

References 21 publications

(39 reference statements)

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“…Hence, a more efficient and rapid balance can be realised. Generally, passive elements such as inductors [11][12][13][14][15], capacitors [16][17][18][19][20], transformers [21][22][23][24][25][26][27][28][29], and their combinations [30,31] are required to achieve the energy transfer. More information on the mathematical model and control of battery equalisation systems is summarised in [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Single‐magnetic equaliser without any sensors for series‐connected battery strings

Liu

Zou

et al. 2019

IET Power Electronics

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This study proposes an automatic cell-to-cell equaliser to balance the battery voltages in series-connected battery strings. In the proposed equaliser, each cell needs only one MOSFET, and the adjacent cells share the transformer winding. The voltage balance is automatically realised by using a pair of complementary control signals with a fixed duty cycle. What's more, no sensing circuit is required. Consequently, the proposed equaliser is cost-effective and easy-to-realise. The circuit topology and operating principles are firstly presented. Then the voltage balance analysis is given in detail. Moreover, a design guide is also given by considering four lithium-ion cells. Finally, the validity of the proposed equaliser is verified by experimental results.

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Section: Introductionmentioning

confidence: 99%

Single‐magnetic equaliser without any sensors for series‐connected battery strings

Liu

Zou

et al. 2019

IET Power Electronics

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“…Many non-dissipative schemes for higher efficiency were proposed in literature [1,2,3,4,5,6,8,9,10,11,12,13,14]. However, in most of the schemes, the costs are relatively high because each battery cell needs two or more electrical switches [2,5,7,9,10,11,13].…”

Section: Introductionmentioning

confidence: 99%

A low cost battery equalizing scheme with buck-boost and series LC converter using synchronous phase-shift controller

Weigui

Ran

Yuan

et al. 2017

IEICE Electron. Express

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This paper presents a modularized buck-boost and series LC converter (BBSLCC) circuit for series battery equalizers. The proposed topology has numerous advantages. First, the number of switches in the equalizer is equal to the number of the battery cells needs to be balanced in the string. This is so called one-switch-per-cell, which is a great advantage over the traditional buck-boost converter, since it requires almost twoswitch-per-cell to balance. Second, unlike many other existing one-switchper-cell equalizers, the proposed circuit has the advantage in the modularization design and low voltage stress requirement on the switches. Third, the peak current of the balancing capacitor are suppressed by the synchronous phase-shift controller (SPSC) which can be easily implemented by sensing the zero crossing of the LC resonant current. By using the proposed controller, the speed of the battery equalizing process is also accelerated. In this paper, the proposed topology is first presented, and the operating principle is illustrated. Afterwards, the phase-shift time and the transferred energy of the BBSLCC circuit are calculated to demonstrate the proposed control strategy details. The relationships between the phase-shift time and other circuit parameters such as the inductance and the capacitance are also analyzed. The simulation results and the experimental results are finally demonstrated and verified the theoretical analysis on the performance of the proposed BBSLCC circuit.

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“…Owing to its advantages, supercapacitors have been employed in various applications such as electric, hybrid electric, and fuel cell vehicles [4][5][6], public transportation [7,8], heavy machinery [9,10], subwatt energy harvester [11], battery hybridisation [3,12,13] etc. Researchers in the field of wireless sensor networks have also proposed using supercapacitors as energy buffers [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Supercapacitor charge redistribution analysis for power management of wireless sensor networks

Chai

Ying

Zhang

2017

IET power electron.

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To support many power management applications in wireless sensor networks, a previously developed model is modified to predict the terminal behavior of a supercapacitor under a dynamic charging/discharging power profile. In addition, a robust model parameter identification method based on the Genetic algorithm is developed to determine the model parameters using a dynamic test and a self-discharge experiment. Based on the supercapacitor power input model, charge redistribution related figures of merit are derived and used to evaluate the significance of charge redistribution for supercapacitors with various rated capacitance. The results show that supercapacitors with different sizes share similar charge redistribution phenomenon. Furthermore, the charge redistribution significance is studied from several perspectives to provide guidelines for designing power management techniques that can achieve full potential of the energy stored in the supercapacitors.

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Neuro‐fuzzy controller for battery equalisation in serially connected lithium battery pack

Cited by 28 publications

References 21 publications

Single‐magnetic equaliser without any sensors for series‐connected battery strings

Single‐magnetic equaliser without any sensors for series‐connected battery strings

A low cost battery equalizing scheme with buck-boost and series LC converter using synchronous phase-shift controller

Supercapacitor charge redistribution analysis for power management of wireless sensor networks

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