Study on power distribution strategy of multi-stack fuel cell system based on particle swarm optimization threshold

Table 1. Parameters of hybrid propulsion system
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Table 1. Parameters of hybrid propulsion system
部件额定功率/ kW 数量
PEMFC 132 3组
蓄电池 72 1组
单向DC/DC 80 （800 V/100 A） 1台
双向DC/DC 160 （ 800 V/200 A） 3台
电机最大负载 280 /
常规最大负载 72 /
负载总功率 352 /

Table 2. Rules of the fuzzy controller
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Table 2. Rules of the fuzzy controller
SOC 比值系数 K隶属度
P_load=VL P_load=L P_load=M P_load=H P_load=VH
L VH VH VH VH VH
M L M VH VH VH
H L S H H H

Table 3. Main parameters of hybrid propulsion system
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Table 3. Main parameters of hybrid propulsion system
参数名称数值
变换器电感/ mH 1
母线电容/μF 2 000
母线电压/ V 600
单组PEMFC额定功率/ kW 120

Table 4. Two control strategies comparison result when SOC = 0.5
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Table 4. Two control strategies comparison result when SOC = 0.5
控制策略系统氢气消耗质量/g 直流母线电压最大波动/%
功率等额均分策略 58.64 3.83
本文能量控制策略 47.52 2.48

Table 5. Comparison of control strategies before and after optimization
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Table 5. Comparison of control strategies before and after optimization
控制策略氢气消耗量/g 优化比/%
优化阈值后控制策略 40.18 31.48
优化阈值前控制策略 47.52 18.96
功率等额均分策略 58.64

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Ji LUO, Weibo LI, Zhongtian ZHANG, Hongming HU, Wenbin SU. Study on power distribution strategy of multi-stack fuel cell system based on particle swarm optimization threshold[J]. Chinese Journal of Ship Research, 2023, 18(5): 224

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