Patent ID: 11971457
Assignee: TONGJI UNIVERSITY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. The method for measuring AC impedance of a battery in a composite power supply power system according to claim 1, wherein in said step S3, the real-time demand power Ploaddemand is calculated by the formula:

Ploaddemand=PDCDC-out+Plithiumbattery 

PDCDC-out=ηPDCDC-in 

PDCDC-in=Pfuelcell 

where Ploaddemand is the real-time demand power of the load, PDCDC-out is an output power of the DC/DC voltage converter, Plithiumbattery is an output power of the lithium battery, η is a conversion efficiency of the DC/DC voltage converter, PDCDC-in is an input power of the DC/DC voltage converter, and Pfuelcell is an output power of the fuel cell.