The invention discloses a power output control device for a hydrogen fuel cell power system. The power output control device comprises a DC/DC converter, wherein the DC/DC converter is used for converting a first voltage power supply output by a hydrogen fuel cell into a second voltage power supply as an output power supply of the hydrogen fuel cell power system; an isolation sampling module monitors electric signals of the first voltage power supply and the second voltage power supply to obtain first power supply sampling data and second power supply sampling data; a reference power calculation module acquires real-time reference power of the hydrogen fuel cell power system at the maximum efficiency point according to the first power supply sampling data and the second power supply sampling data; and a DSP control module sends a power output electric signal to the isolation MOS driving module according to the real-time reference power; and the isolation MOS driving module outputs a PWM signal to the DC/DC converter in response to the power output electric signal so as to control the DC/DC converter to output the second voltage power supply according to the real-time reference power. As the DC/DC converter is kept working at the maximum efficiency point, the conversion efficiency of the hydrogen fuel cell power system is higher, and more energy is saved.
用于氢燃料电池动力系统的功率输出控制装置,包括:DC/DC变换器用于将氢燃料电池输出的第一电压电源转化为第二电压电源作为氢燃料电池动力系统的输出电源,隔离采样模块监测第一电压电源和第二电压电源的电信号以获取第一电源采样数据和第二电源采样数据,参考功率计算模块依据第一电源采样数据和第二电源采样数据获取氢燃料电池动力系统在最大效率点时的实时参考功率,DSP控制模块依据实时参考功率向隔离MOS驱动模块发送功率输出电信号,隔离MOS驱动模块响应功率输出电信号输出PWM信号给DC/DC变换器,以控制DC/DC变换器按实时参考功率输出第二电压电源。由于保持DC/DC变换器工作在最大效率点,使得氢燃料电池动力系统的转换效率更高、更节能。
Power output control device and method for hydrogen fuel cell power system
用于氢燃料电池动力系统的功率输出控制装置和方法
2020-11-24
Patent
Electronic Resource
Chinese
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / 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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