The invention discloses a main circuit of a hydrogen energy hybrid power machine, which is characterized in that a chopping module is additionally arranged in a traction converter to form a boost chopping discharge circuit and a buck chopping charge circuit on a power battery side together with an electric reactor, so that the voltage output to an intermediate direct current loop by a power battery is stabilized at DC1800V; meanwhile, the circuit safety of the power battery side is improved through the stable and controllable charging circuit; the hydrogen fuel power supply module directly obtains a starting power supply from the intermediate direct current loop through the bidirectional isolated voltage boosting/reducing module, and after the hydrogen fuel power supply module is started, the stability and timeliness of forward voltage boosting control of the voltage boosting/reducing module can be improved through the stable intermediate direct current loop voltage. According to the invention, consistency control of the intermediate voltage in different power supply modes is realized, and system faults caused by inconsistency of the intermediate voltage in the same main transmission system in different power supply modes are reduced. The invention further provides a railway vehicle.
本发明公开了一种氢能源混合动力机车主电路,所述主电路通过在牵引变流器内新增斩波模块,与电抗器组成动力电池侧的升压斩波放电电路和降压斩波充电电路,使得动力电池输出至中间直流回路的电压稳定在DC1800V,同时稳定可控的充电电路提升动力电池侧的电路安全;氢燃料供电模块通过双向隔离的升/降压模块直接从中间直流回路获得启动电源,氢燃料供电模块启动后,稳定的中间直流回路电压,可以提升升/降压模块正向升压控制的稳定性和时效性。本发明实现不同供电模式下的中间电压的一致性控制,降低不同供电模式下,同一主传动系统中间电压不一致性导致的系统故障。本发明还提供一种轨道车辆。
Main circuit of hydrogen energy hybrid power vehicle and rail vehicle
一种氢能源混合动力机车主电路及轨道车辆
2025-02-07
Patent
Electronic Resource
Chinese
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