FUZZY LOGIC CONTROL METHOD FOR GRID INDEPENDENT OPERATION OF FUEL CELL/BATTERY HYBRID SYSTEM, AND THE APPARATUS FOR IT

摘要

The present invention relates to a method for controlling an output of a fuel cell by fuzzy logic according to an external electric load and a state of charge of a battery in a complex system of a fuel cell and a battery capable of independent operation, and an apparatus for implementing the same.;According to the method of the present invention, the load sharing of the fuel cell and the battery is determined based on the output value of the fuel cell predicted and calculated by the fuzzy logic based on the state of charge (SoC) and the external load of the battery. There is a technical feature in controlling the process and the output, the non-MS to detect the state of charge of the battery; A fuzzy logic controller for calculating an output value of the fuel cell from the state of charge of the battery and the external load value; The fuel cell controller controls the process of the fuel cell based on the calculated value of the fuzzy logic controller and the fuel cell power controller controls the output of the DC / DC converter.;The method and apparatus of the present invention improve the operating efficiency of the entire system, increase the durability by operating the fuel cell and the storage battery in a stable range, and has the advantage that the system can quickly respond to external loads.