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Research Papers

Fuzzy Control of Supercapacitor Current in Hybrid Diesel Generator/Fuel Cell Marine Power System

[+] Author and Article Information
Amin Hajizadeh

Department of Electrical Engineering,
University of Shahrood,
Shahrood 3619995161, Iran

Amir Hossein Shahirinia, David C. Yu

Department of Electrical Engineering
and Computer Applied Science,
University of Wisconsin–Milwaukee,
Milwaukee, WI 53212

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY. Manuscript received July 29, 2013; final manuscript received December 14, 2014; published online January 21, 2015. Assoc. Editor: Umberto Desideri.

J. Fuel Cell Sci. Technol 12(2), 021009 (Apr 01, 2015) (6 pages) Paper No: FC-13-1070; doi: 10.1115/1.4029394 History: Received July 29, 2013; Revised December 14, 2014; Online January 21, 2015

This paper presents a power control strategy for a marine power system made up of a hybrid diesel generator, a fuel cell, and an energy storage unit. For this purpose, a self-tuning fuzzy control is designed to manage the power generation between power sources during different maneuverings and voltage disturbances (both balanced and unbalanced) in an AC system. As a solution, a current control strategy using a voltage source converter is presented. Simulation results show the response of the whole system under a test driving cycle and this variety of voltage disturbance conditions. They illustrate the performance, including power flow control and voltage disturbance ride-through capability, of the proposed control strategy.

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Figures

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Fig. 1

Proposed structure of a hybrid diesel generator/fuel cell marine power system combined with an energy storage unit

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Fig. 2

Power flow in a hybrid marine power system

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Fig. 3

Block diagram of the self-tuning fuzzy controller

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Fig. 4

A test cycle for evaluation of the proposed power control strategy

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Fig. 5

Fuel cell power (kW)

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Fig. 6

Energy storage power (kW)

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Fig. 7

Variations of DC-link voltage during voltage disturbance

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Fig. 8

Generated power from the hybrid system during voltage disturbance (p.u.)

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Fig. 9

Variation of fuel cell power during voltage disturbance (p.u.)

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Fig. 10

Variation of energy storage power during voltage disturbance (p.u.)

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Fig. 11

Variation of energy storage voltage during voltage disturbance

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Fig. 12

Variation of fuel cell voltage (a) and hydrogen flow rate (b) during voltage disturbance

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