The embodiments of the present application provide a power control method and a fuel cell control system, said method comprising: a controller acquiring, in real time, the cell output voltage, cell output current and cell output power of a fuel cell, and the output voltage and output current of a DC-DC conversion circuit; calculating, in a dual-closed-loop nonlinear control unit, a target output voltage of the DC-DC conversion circuit, the cell output voltage, the cell output current, a calculation instruction value, and the output voltage and output current of the DC-DC conversion circuit, so as to obtain a control instruction value of a real-time pulse width modulation gate circuit; and the real-time pulse width modulation gate circuit regulating the output voltage and output current of the DC-DC conversion circuit on the basis of the control instruction value, so as to achieve cell output power within a preset power range. In this solution, the cell output power is controlled to be kept within the preset power range by means of data acquired in real time, improving the practicability, controllability and stability of the fuel cell control system.
POWER CONTROL METHOD AND FUEL CELL CONTROL SYSTEM
VERFAHREN ZUR LEISTUNGSSTEUERUNG UND SYSTEM ZUR STEUERUNG VON BRENNSTOFFZELLEN
PROCÉDÉ DE COMMANDE DE PUISSANCE ET SYSTÈME DE COMMANDE DE PILE À COMBUSTIBLE
2022-11-09
Patent
Elektronische Ressource
Englisch
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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 |
Fuel cell system, automobile and power supply control method of fuel cell system
Europäisches Patentamt | 2021
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