Patent · US Active

Power supply system using a fuel cell, controller for the same and control method

US9979203B2 · kind B2 · utility

0Cited by

1References

16Claims

0Family size

Assignee

PHILIPS LIGHTING HOLDING B.V. · NL

Inventors

BJORN CHRISTIAAN WOUTER KAAG · Heerlen, NL
Rainer Hilbig · Aachen, DE
Mareike Klee · Straelen, DE

Key dates

Filing date	Jun 3, 2014
Grant date	May 22, 2018
Priority date	—
Expiry date	Nov 24, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P90/40
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A power supply system comprises a fuel cell and a battery, each for supplying electrical power to a load. The system is controlled to use the fuel cell for a first period of time (82) to supply electrical power to the load, wherein the power demand is constant over a first time period (82). The battery is used simultaneously with the fuel cell for a second supply time of electrical power to the load, wherein the power varies (84). In this way, fluctuating output is provided by the battery, and the fuel cell output is maintained as constant as possible to prolong the lifetime. During the second supply time, the power to the load (80) can be provided as a constant contribution from the fuel cell and a variable contribution from the battery.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.