Power Control of a Nonpitchable PMSG-Based Marine Current Turbine at Overrated Current Speed With Flux-Weakening Strategy

Zhou, Zhibin; Scuiller, Franck; Charpentier, Jean-Frédéric; Benbouzid, Mohamed; Tang, Tianhao

doi:10.1109/joe.2014.2356936

Cited by 66 publications

(39 citation statements)

References 28 publications

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“…where, p is the number of pole pairs of the generator, and λ m is the magnetic flux linkage due to PM. On the other hand, flux weakening strategy is utilized if i d = 0 results in a higher terminal voltage than can be delivered by the converter [43]. The d-axis current i d , is obtained as follows,…”

Section: Generator Speed Controlmentioning

confidence: 99%

Lifetime Analysis of IGBT Power Modules in Passively Cooled Tidal Turbine Converters

et al. 2020

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Thermal cycling is one of the major reasons for failure in power electronic converters. For submerged tidal turbine converters investigating this failure mode is critical in improving the reliability, and minimizing the cost of energy from tidal turbines. This paper considers a submerged tidal turbine converter which is passively cooled by seawater, and where the turbine has fixed-pitch blades. In this respect, this study is different from similar studies on wind turbine converters, which are mostly cooled by active methods, and where turbines are mostly pitch controlled. The main goal is to quantify the impact of surface waves and turbulence in tidal stream velocity on the lifetime of the converter IGBT (insulated gate bipolar transistor) modules. The lifetime model of the IGBT modules is based on the accumulation of fatigue due to thermal cycling. Results indicate that turbulence and surface waves can have a significant impact on the lifetime of the IGBT modules. Furthermore, to accelerate the speed of the lifetime calculation, this paper uses a modified approach by dividing the thermal models into low and high frequency models. The final calculated lifetime values suggest that relying on passive cooling could be adequate for the tidal converters as far as thermal cycling is concerned.

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Section: Generator Speed Controlmentioning

confidence: 99%

Lifetime Analysis of IGBT Power Modules in Passively Cooled Tidal Turbine Converters

et al. 2020

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“…As it can be seen, OCAES will be quickly fully charged because of the high energy provided by the MCT farm. However, in this case, the MCT cannot be kept in MPPT operation when the OCAES charging power reaches its rated value at 2.69 h or 14.82 h; MCT control can limit the generated power to protect the OCAES from the over charge and maintain the stability of the grid [20]. When the OCAES is fully charged at 4.28 h or 16.81 h, the MCT limits the generated power to the load only.…”

Section: Higher or Lower Tide Speed Casesmentioning

confidence: 99%

Stand-alone island daily power management using a tidal turbine farm and an ocean compressed air energy storage system

et al. 2017

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Due to the high predictability and the high energy density, marine tidal resource has become an area of increasing interest with various academic and industrial projects around the world. In fact, several Marine Current Turbine (MCT) farm projects with multi-megawatt capacity are planned to be installed in the coming years. In this paper, a MCT farm is supposed to be the main energy supply for a stand-alone island. To compensate the MCT farm power variation relating to the tidal phenomenon, an Ocean Compressed Air Energy Storage (OCAES) system is considered to achieve the island power management. The novelty in this work is that conventional Diesel Generators (DGs) would only serve as a backup supply while the main island power supply will be fulfilled by the proposed hybrid MCT/OCAES system. A simplified OCAES model is built-up in this paper with cycle efficiency about 60.6%. Simulations under different working conditions are carried out to validate the feasibility of the hybrid power system. The obtained results show that the proposed system power management can greatly help to decrease DG fossil fuel consumption and CO 2 emission.

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“…However, HOSM controllers appear to have high frequency oscillations around the sliding mode creating a possible problem for the operation of the generator. The same controller designed in [38] is also used in [39] Other variations in controlling a PMSG are presented in [40] using passive rectifiers and in [41] using a fixed pitch blade tidal current turbine. Researchers in [42] perform dynamic stability analysis to a grid connected tidal current turbine with PMSG.…”

Section: Control Of Tidal Current Turbinesmentioning

confidence: 99%

“…However, the main disadvantage of this design is the previous knowledge of the resource that is required which is not always possible to acquire and may not be accurate. In [41] authors are trying to regulate the power of a non-pitchable tidal current turbine. In order to achieve power regulation they use a flux-weakening control strategy which is presented in Figure 2 The flux weakening control strategy can be controlled in two different modes.…”

Section: Control Of Tidal Current Turbinesmentioning

confidence: 99%

“…Novel generator designs have been proposed for tidal current turbines by a number of researchers. A generator design for tidal current turbines, which also led to start-up company Nautricity, is analysed in [41]. This design refers to two sets of contra-rotating blades which are driven by a PMSG directly (Figure 2.7a).…”

Section: Permanent Magnet Synchronous Generators In Tidal Current Sysmentioning

confidence: 99%

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Modelling, control and frequency domain analysis of a tidal current conversion system with onshore converters

Sousounis

Shek

Mueller

2016

IET Renewable Power Generation

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I would like to thank my supervisor Dr. Jonathan Shek for his close supervision, informative discussions, understanding of the problems I faced and advice throughout my PhD research. Also, I would like to thank my second supervisor, Markus Mueller, for the opportunity and the support to study and carry out research at the University of Edinburgh. His guidance and support at the initial, and at the same time difficult, stages of the PhD were crucial for the progress of the research. In addition, I would like to thank Andritz Hydro Hammerfest for the financial support as well as the information, data and advice received regarding my research. My research was also financially supported by the Institute for Energy Systems of the University of Edinburgh. Finally, I would like to thank all my friends and colleagues for the discussions we had, the different perspectives they gave me to approach problems and most importantly by making my everyday life during the last four years enjoyable.

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Power Control of a Nonpitchable PMSG-Based Marine Current Turbine at Overrated Current Speed With Flux-Weakening Strategy

Abstract: is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. Abstract-This

Cited by 66 publications

References 28 publications

Lifetime Analysis of IGBT Power Modules in Passively Cooled Tidal Turbine Converters

Lifetime Analysis of IGBT Power Modules in Passively Cooled Tidal Turbine Converters

Stand-alone island daily power management using a tidal turbine farm and an ocean compressed air energy storage system

Modelling, control and frequency domain analysis of a tidal current conversion system with onshore converters

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