The invention discloses an unmanned aerial vehicle hybrid power supply system energy management method based on fuzzy double closed-loop control in the technical field. An unmanned aerial vehicle hybrid power supply system comprises a hydrogen fuel cell, a lithium battery and a double active bridge circuit, and the hydrogen fuel cell and the lithium battery serve as energy sources of the hybrid power supply system; the dual-active bridge circuit is used for connecting a hydrogen fuel cell and a lithium battery and transmitting energy to an unmanned aerial vehicle load, the energy management method comprises a fuzzy power control outer ring and a fuzzy PI current control inner ring, the fuzzy power control outer ring dynamically distributes power according to a power signal required by the unmanned aerial vehicle load, a power error signal and a lithium battery charge state, and the fuzzy PI current control inner ring controls the power to be output. The fuzzy PI current control inner loop generates an accurate driving signal according to the battery power and the voltage ratio after fuzzy distribution, a switching device of the dual active bridge circuit is driven to be switched on, energy transmission is achieved, and the problems that in existing unmanned aerial vehicle energy management, the cruising ability is insufficient, and the energy utilization efficiency is low can be effectively solved.
本发明公开了技术领域内的一种基于模糊双闭环控制的无人机混合电源系统能量管理方法,无人机混合电源系统包括氢燃料电池、锂电池、双有源桥电路,氢燃料电池和锂电池作为混合电源系统的能量来源;双有源桥电路用于连接氢燃料电池和锂电池,并将能量传输至无人机负载,能量管理方法包括模糊功率控制外环和模糊PI电流控制内环,模糊功率控制外环根据无人机负载需求功率信号、功率误差信号以及锂电池荷电状态动态分配功率,模糊PI电流控制内环根据模糊分配后的电池功率和电压比值生成精确驱动信号,驱动双有源桥电路的开关器件导通,实现能量传输,本发明能够有效解决现有无人机能量管理中存在的续航能力不足和能量利用效率低下的问题。
Unmanned aerial vehicle hybrid power system energy management method based on fuzzy double closed-loop control
基于模糊双闭环控制的无人机混合电源系统能量管理方法
2025-04-29
Patent
Electronic Resource
Chinese
IPC: | B64U / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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