According to the hybrid power system energy management method based on fuel cell air supply condition optimization, a vehicle speed predictor based on bidirectional LSTM is designed, and accurate whole vehicle demand power in a future short-term time domain can be obtained; the optimal air supply condition is calculated in an off-line mode through the particle swarm optimization algorithm, and high system economy is achieved; the optimal air supply condition is considered in the updating calculation of the energy management strategy cost function, so that the energy management process can better conform to the real working condition of the fuel cell hybrid power system, multiple defects caused by the fact that the electric pile polarization characteristic and the hydrogen consumption characteristic are regarded as fixed forms in the prior art are overcome, and the practicability is higher. Based on the method, the future vehicle speed can be accurately predicted under various different working conditions, and the energy of the hybrid power source is reasonably distributed, so that the hydrogen fuel economy of the hybrid power system can be effectively optimized on the premise of ensuring the normal output of the fuel cell system.
本发明提供了一种基于燃料电池空气供给条件优化的混动系统能量管理方法,设计了基于双向LSTM的车速预测器,可得到较为准确的未来短期时域内整车需求功率;利用粒子群优化算法离线计算最佳空气供给条件,实现了较高的系统经济性;在能量管理策略成本函数的更新计算中考虑了最佳空气供给条件,能够使能量管理过程更符合燃料电池混动系统的真实工作情况,克服了现有技术中将电堆极化特性和氢气消耗特性视为固定形式所导致的诸多弊端,实用性更强。基于本发明可在多种不同工况下准确预测未来车速,并合理分配混合动力源能量,从而能在保证燃料电池系统正常输出的前提下,有效优化混合动力系统的氢燃料经济性。
Hybrid power system energy management method based on fuel cell air supply condition optimization
基于燃料电池空气供给条件优化的混动系统能量管理方法
2024-03-01
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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