Robust Primary Protection Device for Weight-Optimized PEM Fuel Cell Systems in High-Voltage DC Power Systems of Aircraft

Grumm, Florian; Storjohann, Jens; Lucken, A.; Meyer, Marc Florian; Schulz, Detlef

doi:10.1109/tie.2018.2886808

Cited by 10 publications

(4 citation statements)

References 28 publications

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“…As a consequence of the limited short circuit current, existing grid protection mechanisms have to be adapted [32][33][34] for single fuel cell systems. The analysis of additional short circuit current flow indicates that an overcurrent protection is not satisfactory.…”

Section: Discussionmentioning

confidence: 99%

Short Circuit Characteristics of PEM Fuel Cells for Grid Integration Applications

et al. 2020

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The reduction of greenhouse gas and pollutant emissions is a major issue in modern society. Therefore, environmentally friendly technologies like fuel cells should replace conventional energy generation plants. Today, fuel cells are used in households for CHP (combined heat and power) applications, for emergency power supply in many stationary applications and for the power supply of cars, buses and ships and emergency power supply of aircrafts. A significant challenge is the optimal electrical grid integration and selection of the appropriate grid protection mechanism for fuel cell applications. For this, the short circuit capability and behavior needs to be known. This paper gives a mathematical estimation of the short circuit behavior of fuel cells. Five main transient and dynamic phenomena are investigated. The impact of the main transient effect for the provision of additional short circuit energy is simulated, and the simulation is experimentally validated. For this purpose, a 25 c m 2 single cell consisting of a NafionTM 212 membrane and carbon cloth electrodes with a catalyst loading of 0 . 5 m g / c m 2 Pt is analyzed. The magnitude of the transient short circuit current depends on the operating point right before the short circuit occurs, whereas the stationary short circuit current of fuel cells is invariably about twice the operational current. Based on these results, a novel fuel cell model for the estimation of the short circuit behavior is proposed.

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Section: Discussionmentioning

confidence: 99%

Short Circuit Characteristics of PEM Fuel Cells for Grid Integration Applications

et al. 2020

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“…Table I summarizes the most significant parameters of the PMSM drive and the IP controller designed to regulate the machine mechanical speed. A DC-link voltage of 270 V has been considered as in a real EMA application [35].…”

Section: Experimental Validationmentioning

confidence: 99%

Enhanced DC-Link Voltage Utilization for Sliding-Mode-Controlled PMSM Drives

Repecho

Sierra-Gonzalez

Ibarra

et al. 2021

IEEE J. Emerg. Sel. Topics Power Electron.

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Sliding mode control (SMC) can be considered for torque regulation of permanent magnet synchronous machines (PMSM) when fast transient response and/or robustness under parameter uncertainties are required. In some particular applications, a voltage harmonic injection technique that enhances the DC-link voltage utilization should be incorporated into the controller to operate at high speeds. Although this is straightforward for pulse width modulated (PWM) drives, a convenient definition of the sliding surfaces and an appropriate injection procedure must be implemented when using SMC. In this work, a novel approach to generate zero sequence voltage harmonic injection in surface mounted (SM) PMSM drives controlled by a fixed switching frequency first order SMC is proposed. A theoretical analysis is provided verifying the sliding mode existence and demonstrating the system stability when the sliding mode is reached. Finally, experimentation is carried out in an off-the-shelf PMSM drive, where two voltage injection patterns are tested. In both cases, the DC-link voltage utilization is extended by a 15 %, confirming the validity of the proposal.

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“…However, the design of capacitor bank is difficult by considering the tradeoff between the on-state losses and total time constant. Moreover, a robust primary protection device was developed in [114] for a weight-optimized fuel system in the HVDC power system of MEA. A detailed description of the protection design process was included.…”

Section: B System Reliabilitymentioning

confidence: 99%

Electrical and Electronic Technologies in More-Electric Aircraft: A Review

Liu

Mei

et al. 2019

IEEE Access

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This paper presents a review of the electrical and electronic technologies investigated in moreelectric aircraft (MEA). In order to change the current situation of low power efficiency, serious pollution, and high operating cost in conventional aircraft, the concept of MEA is proposed. By converting some hydraulic, mechanical, and pneumatic power sources into electrical ones, the overall power efficiency is greatly increased, and more flexible power regulation is achieved. The main components in an MEA power system are electrical machines and power electronics devices. The design and control methods for electrical machines and various topologies and control strategies for power electronic converters have been widely researched. Besides, several studies are carried out regarding energy management strategies that intend to optimize the operation of MEA power distribution systems. Furthermore, it is necessary to investigate the system stability and reliability issues in an MEA, since they are directly related to the safety of passengers. In terms of machine technologies, power electronics techniques, energy management strategies, and the system stability and reliability, a review is carried out for the contributions in the literature to MEA. INDEX TERMS More-electric aircraft, machine technologies, power electronics techniques, energy management strategies, system stability and reliability.

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Robust Primary Protection Device for Weight-Optimized PEM Fuel Cell Systems in High-Voltage DC Power Systems of Aircraft

Cited by 10 publications

References 28 publications

Short Circuit Characteristics of PEM Fuel Cells for Grid Integration Applications

Short Circuit Characteristics of PEM Fuel Cells for Grid Integration Applications

Enhanced DC-Link Voltage Utilization for Sliding-Mode-Controlled PMSM Drives

Electrical and Electronic Technologies in More-Electric Aircraft: A Review

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