Åsgard Subsea Gas Compression—Technology Qualification Testing With High-Speed VSD and Very Long Step-Out Cable

Monsen, Bjarne; Rongve, Knut S.; Laegreid, Torstein; Gutscher, Christof

doi:10.1109/tia.2013.2293912

Cited by 13 publications

(6 citation statements)

References 3 publications

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“…Primarily, all projects produce a 'Subsea Qualification Strategy' addressing qualification and also gather the evidence to support Subsea qualification, as early as practicable in the project life cycle [22]. The success of the proposed qualification strategy relies on capturing the product requirements explicitly in the master requirements document, which drives the product development and qualification at a later stage of the TQP life cycle.…”

Section: Novel Technology Qualification Life Cyclementioning

confidence: 99%

Comprehensive Technology Qualification Process for Subsea Electronics Assemblies

Arif¹,

Rehman-Shaikh²,

Evangelou

2021

IEEE Trans. Ind. Electron.

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Subsea production systems technologies are being developed steadily to address the technological issues associated with the deep-sea environment, primarily pressure and temperature. To ensure the reliable operation of electrical/electronic systems for at least 25-years on the seabed, a comprehensive technology qualification program is proposed in this paper. In relation to this, Technology Readiness Level of the Subsea electrical/electronics assembly is achieved after conducting devised environmental stress tests compliant to the internationally recognized standards, e.g. API, ISO, IEC and IEEE. The comprehensive tests methods of the qualification program are explained to achieve the technology readiness level 3 of the Subsea printed circuit board and sub-assemblies. Finally, experimental test results of a standalone Subsea Ethernet Switch and also functional verification with 100 meters of electrical flying lead undergoing the prescribed test methods show that the Subsea electronics comply with the international standards and is fit for use in the Subsea environment.

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Section: Novel Technology Qualification Life Cyclementioning

confidence: 99%

Comprehensive Technology Qualification Process for Subsea Electronics Assemblies

Arif¹,

Rehman-Shaikh²,

Evangelou

2021

IEEE Trans. Ind. Electron.

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“…For the power loads, it is considered that the majority are driven by a Variable Speed Drive (VSD) fed by the dc distribution lines. The later removes the need for a rectification stage commonly found in VSDs and, ideally, avoid the energy quality problems related to the ac lines, such as resonances and harmonics circulation [6]. For such a scenario, this paper address a power electronic converter topology that enables the connection between the ac power line and the dc loads (ac-dc block in Fig.…”

Section: Introductionmentioning

confidence: 99%

A Unidirectional Insulated AC–DC Converter Based on the Hexverter and Multipulse-Rectifier

Lambert

Costabeber

Wheeler

et al. 2020

IEEE Trans. Power Electron.

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This paper proposes an insulated two-stage ac-dc converter to be applied in unidirectional power flow systems. The two-stage structure is the combination of a Hexverter and a series-type 12 pulse rectifier. The key features of the proposed structure are inherited from the modular multilevel converter concept such as modularity, scalability, and expandability. Besides the topology, this article presents a complete control strategy based on the output (dc) voltage regulation and Hexverter's stored energy. In particular, an unusual method to regulate the Hexverter's branch energy unbalances is proposed. All currents in the Hexverter are controlled which increases the robustness for operation in harsh environments such as subsea systems. Mathematical analysis of the control loops is carried out to develop the necessary control-oriented models for each control loop. The converter and the control strategy are verified through experiments in a 24 cells Hexverter and a current-fed series-type 12-pulse rectifier.

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“…A concepção e o desenvolvimento de sistemas elétricos voltados para instalações em mar aberto, tais como parques eólicos [1] e plataformas de extração de petróleo e gás [2], envolve o uso de linhas de transmissão compostas por cabos submarinos. Estes cabos possuem uma estrutura complexa, composta por várias camadas condutoras, revestimentos isolantes e blindagens, apresentando elevada capacitância entre as fases e, por consequência, ressonâncias em frequências relativamente baixas [3].…”

Section: Introductionunclassified

“…Estes cabos possuem uma estrutura complexa, composta por várias camadas condutoras, revestimentos isolantes e blindagens, apresentando elevada capacitância entre as fases e, por consequência, ressonâncias em frequências relativamente baixas [3]. Portanto, os desafios encontrados na transmissão de energia elétrica ou no controle de máquinas e dispositivos submersos interligados por cabos longos, tem levado ao desenvolvimento de laboratórios e equipamentos específicos para realização de testes prévios de controle e acionamento antes da instalação final [2], [4].…”

Section: Introductionunclassified

“…Um dos desafios consiste em emular cabos de potência em laboratório, com interesse particular para aplicações de acionamento de máquinas, que operam tipicamente com tensão na ordem de 6 kV e correntes de até 300 A [2]. Na literatura são encontradas algumas soluções para emular uma rede de cabos em baixa tensão, utilizando o conceito de Power Hardware-in-the-Loop, com inversores na configuração back-to-back -BTB [5], [6].…”

Section: Introductionunclassified

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Emulador de Resistência de Alto Desempenho Baseado em Conversor Multinível Bidirecional e Dispositivos GaN

Viglus¹,

Heldwein²

2020

Eletrônica de Potência

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Este trabalho apresenta um conversor multinível bidirecional destinado à emular resistências livres de perdas em um futuro emulador de cabos de potência de banda larga de frequência. O conversor proposto é composto por quatro estruturas Tipo-T intercaladas e acopladas através de dois transformadores de interfase (TMIF). Este sistema contribui para uma melhor distribuição de perdas e sintetiza uma tensão com até nove níveis na porta CA, o que reduz a necessidade de filtros. Desta forma, a topologia proposta tende a ser compacta, eficiente e capaz de reproduzir dinâmicas elétricas rápidas. Um protótipo de 400 W, comutado em 250 kHz construído com modernos dispositivos semicondutores de nitreto de gálio (GaN) para operar com correntes de até 29 A é apresentado, do qual resultados experimentais mostram que o conversor apresenta uma eficiência máxima de 98,5% em aproximadamente um quarto da carga e 97,1% em carga plena.

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Åsgard Subsea Gas Compression—Technology Qualification Testing With High-Speed VSD and Very Long Step-Out Cable

Cited by 13 publications

References 3 publications

Comprehensive Technology Qualification Process for Subsea Electronics Assemblies

Comprehensive Technology Qualification Process for Subsea Electronics Assemblies

A Unidirectional Insulated AC–DC Converter Based on the Hexverter and Multipulse-Rectifier

Emulador de Resistência de Alto Desempenho Baseado em Conversor Multinível Bidirecional e Dispositivos GaN

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