Motor power simulating apparatus for fuel cell power module evaluation

Patent metadata

Field	Value
Publication number	US-9383398-B2
Application number	US-201213688137-A
Country	US
Kind code	B2
Filing date	Nov 28, 2012
Priority date	Aug 21, 2012
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

Disclosed is a motor power simulating apparatus for fuel cell power module evaluation that accurately reflects real world characteristics of a fuel cell vehicle. More particularly, the power simulating apparatus disclosed herein includes a fuel cell power module, a ripple current generator, and an electronic load device, the ripple current generator connected to the fuel cell power module and the electronic load device to accurately simulate power output from a fuel cell of a fuel cell vehicle under real world conditions.

First claim

What is claimed is:

1. A motor power simulating system for fuel cell power module evaluation, comprising:
a fuel cell power module;
a ripple current generator; and
an electronic load device for consuming the power generated by the fuel cell power module, wherein the ripple current generator is connected directly to the fuel cell power module and the electronic load device, and
wherein the ripple current generator consists of a switching variable resistor and a capacitor, and the switching variable resistor is connected to a positive terminal of the fuel cell power module such that the switching variable resistor changes its resistance while having a predetermined frequency to adjust the amplitude of a generated ripple current, thus simulating the ripple current normally found during operation of a fuel cell vehicle.

2. The apparatus of claim 1 , wherein the variable resistor has a frequency corresponding to white noise.

3. A fuel cell power module estimation method, comprising:
connecting a ripple current generator directly to the fuel cell power module and an electronic load device, the ripple current generator consisting of a switching variable resistor connected to a positive terminal of an output line coming from a fuel cell power module and a capacitor, in order to simulate power generation of a fuel cell vehicle;
changing a resistance of the switching variable resistor to adjust an amplitude of the generated ripple current, thus simulating the ripple current between the fuel cell power module and the electronic load device; and
evaluating performance of the fuel cell by using electric characteristics of the electronic load device.

4. A motor power simulating apparatus for fuel cell power module evaluation, comprising:
a ripple current generator consisting of a switching variable resistor and a capacitor, and the switching variable resistor is connected to a positive terminal of a fuel cell power module such that the switching variable resistor changes its resistance while having a predetermined frequency, or a frequency in a white noise form, to adjust the amplitude of a generated ripple current, thus simulating the ripple current normally found during normal operation of a fuel cell vehicle.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Choi Sung Bum
• Cho Ii Hee

Classifications

• Y02E60/50

  Fuel cells · CPC title

• G01R31/00 Primary

  Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere ({measuring superconductive properties G01R33/1238;} testing line transmission systems H04B3/46; testing or measuring semiconductors or solid state devices during manufacture {H10P74/00}) · CPC title

• H01M2250/40

  Combination of fuel cells with other energy production systems · CPC title

• H01M8/04298 Primary

  Processes for controlling fuel cells or fuel cell systems · CPC title

• Y02E60/56

  Cross-Sectional Technologies · mapped topic