The Experts below are selected from a list of 5424 Experts worldwide ranked by ideXlab platform
Christof Gutscher - One of the best experts on this subject based on the ideXlab platform.
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Åsgard Subsea Gas Compression—Technology Qualification Testing With High-Speed VSD and Very Long Step-Out Cable
IEEE Transactions on Industry Applications, 2014Co-Authors: Bjarne Monsen, Knut S. Rongve, Torstein Lægreid, Christof GutscherAbstract:The power system, including variable-speed drives (VSDs), transformers, and long subsea power cables, is one of the main building blocks in the development of subsea gas compression. This paper presents results from full-scale technology qualification testing of a power system onshore where the VSD is controlling a 188-Hz 7.8-MW gas compressor motor over a simulated distance of 47 km. The extensive testing shows that it is possible to control the compressor/motor speed from start-up throughout the whole load envelope without the need for motor voltage and current feedback. By the use of estimator-based control, it is also possible to provide motor overcurrent protection. This paper shows how resonances in the long cable system can be handled by the use of optimization of the geneRated voltage waveform instead of using a VSD sine filter. The successful technology qualification shows applicability for subsea compressors with a Rated Frequency of up to 200 Hz, at least 8-MW shaft power, and a step-out distance of at least 50 km.
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Åsgard subsea gas compression - Technology qualification testing with high-speed VSD and very long step-out cable
2012 Petroleum and Chemical Industry Conference (PCIC), 2012Co-Authors: Bjarne Monsen, Knut S. Rongve, Torstein Lægreid, Christof GutscherAbstract:The power system including Variable Speed Drives, transformers and long subsea power cables is one of the main building blocks in the development of subsea gas compression. This paper presents results from full scale technology qualification testing of a power system onshore where the Variable Speed Drive is controlling a 188 Hz, 7.8 MW gas compressor motor over a simulated distance of 47 km. The extensive testing shows that it is possible to control the compressor/motor speed from start-up throughout the whole load envelope without need for motor voltage and current feedback. By use of estimator-based control it is also possible to provide motor overcurrent protection. The paper shows how resonances in the long cable system can be handled by use of optimization of the geneRated voltage waveform instead of using Variable Speed Drive sine filter. The successful technology qualification shows applicability for subsea compressors with a Rated Frequency of up to 200 Hz, at least 8 MW shaft power and a step-out distance of at least 50 km.
Bjarne Monsen - One of the best experts on this subject based on the ideXlab platform.
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Åsgard Subsea Gas Compression—Technology Qualification Testing With High-Speed VSD and Very Long Step-Out Cable
IEEE Transactions on Industry Applications, 2014Co-Authors: Bjarne Monsen, Knut S. Rongve, Torstein Lægreid, Christof GutscherAbstract:The power system, including variable-speed drives (VSDs), transformers, and long subsea power cables, is one of the main building blocks in the development of subsea gas compression. This paper presents results from full-scale technology qualification testing of a power system onshore where the VSD is controlling a 188-Hz 7.8-MW gas compressor motor over a simulated distance of 47 km. The extensive testing shows that it is possible to control the compressor/motor speed from start-up throughout the whole load envelope without the need for motor voltage and current feedback. By the use of estimator-based control, it is also possible to provide motor overcurrent protection. This paper shows how resonances in the long cable system can be handled by the use of optimization of the geneRated voltage waveform instead of using a VSD sine filter. The successful technology qualification shows applicability for subsea compressors with a Rated Frequency of up to 200 Hz, at least 8-MW shaft power, and a step-out distance of at least 50 km.
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Åsgard subsea gas compression - Technology qualification testing with high-speed VSD and very long step-out cable
2012 Petroleum and Chemical Industry Conference (PCIC), 2012Co-Authors: Bjarne Monsen, Knut S. Rongve, Torstein Lægreid, Christof GutscherAbstract:The power system including Variable Speed Drives, transformers and long subsea power cables is one of the main building blocks in the development of subsea gas compression. This paper presents results from full scale technology qualification testing of a power system onshore where the Variable Speed Drive is controlling a 188 Hz, 7.8 MW gas compressor motor over a simulated distance of 47 km. The extensive testing shows that it is possible to control the compressor/motor speed from start-up throughout the whole load envelope without need for motor voltage and current feedback. By use of estimator-based control it is also possible to provide motor overcurrent protection. The paper shows how resonances in the long cable system can be handled by use of optimization of the geneRated voltage waveform instead of using Variable Speed Drive sine filter. The successful technology qualification shows applicability for subsea compressors with a Rated Frequency of up to 200 Hz, at least 8 MW shaft power and a step-out distance of at least 50 km.
Y.g. Dessouky - One of the best experts on this subject based on the ideXlab platform.
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Series-connected self-excited synchronous generator: steady state and transient behaviors
IEEE Transactions on Energy Conversion, 1999Co-Authors: A.l. Mohamadein, H.a. Yousef, Y.g. DessoukyAbstract:Series connected synchronous generator (SCSG) is an induction machine with stator and rotor windings connected in series via excitation capacitors. This generator operates synchronously to produce sinusoidal output voltage with half Rated Frequency. This paper presents theoretical and experimental investigation for transient and steady state performances based on the d-q model as derived for a synchronously rotating frame. The minimum capacitor needed to cause self-excitation for a particular speed is calculated.
Torstein Lægreid - One of the best experts on this subject based on the ideXlab platform.
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Åsgard Subsea Gas Compression—Technology Qualification Testing With High-Speed VSD and Very Long Step-Out Cable
IEEE Transactions on Industry Applications, 2014Co-Authors: Bjarne Monsen, Knut S. Rongve, Torstein Lægreid, Christof GutscherAbstract:The power system, including variable-speed drives (VSDs), transformers, and long subsea power cables, is one of the main building blocks in the development of subsea gas compression. This paper presents results from full-scale technology qualification testing of a power system onshore where the VSD is controlling a 188-Hz 7.8-MW gas compressor motor over a simulated distance of 47 km. The extensive testing shows that it is possible to control the compressor/motor speed from start-up throughout the whole load envelope without the need for motor voltage and current feedback. By the use of estimator-based control, it is also possible to provide motor overcurrent protection. This paper shows how resonances in the long cable system can be handled by the use of optimization of the geneRated voltage waveform instead of using a VSD sine filter. The successful technology qualification shows applicability for subsea compressors with a Rated Frequency of up to 200 Hz, at least 8-MW shaft power, and a step-out distance of at least 50 km.
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Åsgard subsea gas compression - Technology qualification testing with high-speed VSD and very long step-out cable
2012 Petroleum and Chemical Industry Conference (PCIC), 2012Co-Authors: Bjarne Monsen, Knut S. Rongve, Torstein Lægreid, Christof GutscherAbstract:The power system including Variable Speed Drives, transformers and long subsea power cables is one of the main building blocks in the development of subsea gas compression. This paper presents results from full scale technology qualification testing of a power system onshore where the Variable Speed Drive is controlling a 188 Hz, 7.8 MW gas compressor motor over a simulated distance of 47 km. The extensive testing shows that it is possible to control the compressor/motor speed from start-up throughout the whole load envelope without need for motor voltage and current feedback. By use of estimator-based control it is also possible to provide motor overcurrent protection. The paper shows how resonances in the long cable system can be handled by use of optimization of the geneRated voltage waveform instead of using Variable Speed Drive sine filter. The successful technology qualification shows applicability for subsea compressors with a Rated Frequency of up to 200 Hz, at least 8 MW shaft power and a step-out distance of at least 50 km.
Knut S. Rongve - One of the best experts on this subject based on the ideXlab platform.
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Åsgard Subsea Gas Compression—Technology Qualification Testing With High-Speed VSD and Very Long Step-Out Cable
IEEE Transactions on Industry Applications, 2014Co-Authors: Bjarne Monsen, Knut S. Rongve, Torstein Lægreid, Christof GutscherAbstract:The power system, including variable-speed drives (VSDs), transformers, and long subsea power cables, is one of the main building blocks in the development of subsea gas compression. This paper presents results from full-scale technology qualification testing of a power system onshore where the VSD is controlling a 188-Hz 7.8-MW gas compressor motor over a simulated distance of 47 km. The extensive testing shows that it is possible to control the compressor/motor speed from start-up throughout the whole load envelope without the need for motor voltage and current feedback. By the use of estimator-based control, it is also possible to provide motor overcurrent protection. This paper shows how resonances in the long cable system can be handled by the use of optimization of the geneRated voltage waveform instead of using a VSD sine filter. The successful technology qualification shows applicability for subsea compressors with a Rated Frequency of up to 200 Hz, at least 8-MW shaft power, and a step-out distance of at least 50 km.
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Åsgard subsea gas compression - Technology qualification testing with high-speed VSD and very long step-out cable
2012 Petroleum and Chemical Industry Conference (PCIC), 2012Co-Authors: Bjarne Monsen, Knut S. Rongve, Torstein Lægreid, Christof GutscherAbstract:The power system including Variable Speed Drives, transformers and long subsea power cables is one of the main building blocks in the development of subsea gas compression. This paper presents results from full scale technology qualification testing of a power system onshore where the Variable Speed Drive is controlling a 188 Hz, 7.8 MW gas compressor motor over a simulated distance of 47 km. The extensive testing shows that it is possible to control the compressor/motor speed from start-up throughout the whole load envelope without need for motor voltage and current feedback. By use of estimator-based control it is also possible to provide motor overcurrent protection. The paper shows how resonances in the long cable system can be handled by use of optimization of the geneRated voltage waveform instead of using Variable Speed Drive sine filter. The successful technology qualification shows applicability for subsea compressors with a Rated Frequency of up to 200 Hz, at least 8 MW shaft power and a step-out distance of at least 50 km.
