Control of grid-connected fuel cell power plant for transient stability enhancement

“…A few other papers [23], [24] present the experimental study of control strategies, which include parameter estimation and diagnostics. Control and stability enhancement of fuel cells systems [25], [26] is considered by several researchers; in particular investigation of the effect of fuel cells on stability of distribution system is a major research topic in these studies. Reference in [27] describe a simplified fuel-cell model and explains the effect of the mix between fuel cell and gas turbine generation on system stability.…”

Section: Controller Designmentioning

confidence: 99%

Model based controller design for hydrogen fuel cell systems

Thanapalan¹,

Premier²,

Guwy³

2011

REPQJ

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In this paper, fuel cell system modelling alongside controller development for performance improvements, are investigated. Essentially and in general terms there are two approaches to modelling; black box modelling and detailed dynamic modelling. This work addresses both modelling approaches. These models are then used for hydrogen fuel cell (FC) controller development for improved system performance. A fuzzy-PID hybrid controller has been designed and tested and the results indicate that the fuzzy-PID hybrid control strategy can improve the system's performance significantly.

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“…Conversion Alliance (SECA) program [3] is targeting solid oxide fuel cell (SOFC) modules in the 3-10 kW range to be made available for residential applications [4][5][6]. In addition to residential use, these modules are expected to be used in high power applications such as apartment buildings, hospitals, schools, etc.…”

Section: Us Department Of Energy's Solid-state Energymentioning

confidence: 99%

Optimum fuel cell utilization with multilevel inverters

Ozpineci¹,

Tolbert²,

Zhang

2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551)

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Abstract-Static characteristics of fuel cells show more than a 30% difference in the output voltage between no-load to full-load conditions. This inevitable decrease, which is caused by internal losses, reduces the utilization factor of the fuel cells at low loads. Additionally, the converters fed by these fuel cells have to be derated to accommodate higher input voltages at low currents. To increase the utilization of fuel cells and to avoid derating of semiconductors, this paper proposes a level reduction control using a multilevel DC-DC converter. Level reduction is done by inhibiting a certain number of fuel cells when the load current decreases. The inhibited fuel cells can be used in other applications such as charging batteries to further increase their utilization and the efficiency of the system.

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Control of grid-connected fuel cell power plant for transient stability enhancement

Cited by 48 publications

References 6 publications

Fuel cell/back-up battery hybrid energy conversion systems: Dynamic modeling and harmonic considerations

Fuel cell/back-up battery hybrid energy conversion systems: Dynamic modeling and harmonic considerations

Model based controller design for hydrogen fuel cell systems

Optimum fuel cell utilization with multilevel inverters

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