Abstract
Fuel-cell power systems comprising single-phase DC/AC inverters draw low-frequency AC ripple currents at twice the output frequency from the fuel cell. Such a 100/120 Hz ripple current may create instability in the fuel cell system, lowers its efficiency, and shortens the lifetime of fuel cell stack. This paper1 presents a waveform control method that can mitigate such a low-frequency ripple current from being drawn from the fuel cell while the fuel-cell system delivers AC power to the load through a differential inverter. Theoretical analysis, simulation, and experimental results are provided to explain the operation and showcase the performance of the approach. Results validate that the proposed solution can achieve significant mitigation of the current ripple as well as high quality output voltage without the need for extra hardware.
| Original language | English |
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| Title of host publication | 2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012 |
| Pages | 4457-4463 |
| Number of pages | 7 |
| DOIs | |
| Publication status | Published - 17 Dec 2012 |
| Event | 4th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2012 - Raleigh, NC, United States Duration: 15 Sept 2012 → 20 Sept 2012 |
Conference
| Conference | 4th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2012 |
|---|---|
| Country/Territory | United States |
| City | Raleigh, NC |
| Period | 15/09/12 → 20/09/12 |
Keywords
- active method
- decouple
- Fuel cell
- low-frequency current ripple
- pulsation power
- waveform control
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Fuel Technology