Investigations on active front-end and active filter based LVAC power architectures of diesel electric propulsion system for diving support vessels

Reddy, B. Dastagiri; Chai, Merlin; Sobrayen, Lingeshwaren; Kamala, Srinivasa Rao; Chuhan, P. J.; Panda, Sanjib Kumar; Wu, Dehong; Chen, Qing

doi:10.1109/iecon.2016.7793142

Cited by 1 publication

(1 citation statement)

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“…Further, the typical 12pulse transformer fed diode bridge rectifier configuration in the conventional LVAC architecture occupies large space and pollutes the bus voltage by drawing non-linear current, which may lead to instability of voltage and frequency control loops. To keep the harmonics within the recommended distortion limits, additional measures such as harmonic filters are employed [2].…”

Section: Introductionmentioning

confidence: 99%

Methodology to qualify marine electrical propulsion system architectures for platform supply vessels

Kamala

Chauhan

Panda

et al. 2018

IET Electrical Systems in Transportation

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Conventional diesel-electric propulsion systems in platform supply vessels (PSVs) use low-voltage AC (LVAC) supply-based architecture with multiple diesel-generators feeding busbars at 690 V, 60 Hz. The busbars distribute power to thruster motor drives via multi-pulse transformers and diode bridge rectifiers. Advancements in electrical power conversion and distribution technologies offer possibilities of AC or DC distribution at low/medium voltage (LV/MV) for reduced fuel consumption (FC), emissions, and equipment footprint. This study presents methodology to qualify propulsion system architecture for PSV application. Potential architectures, besides conventional one, are active front end (AFE) converter-based LVAC (690 V), MVAC (3.3 kV), LVDC (1000 V), and MVDC (5000 V). Performances of these architectures are assessed quantitatively based on FC, emissions, weight, volume, efficiency, and reliability. FC is estimated based on brake-specific FC data of diesel engine. NO x , SO 2 , and CO 2 emissions are assessed based on their emission factors. The weight, volume, and efficiency are estimated based on parameters of individual components. Reliability is assessed based on component failure data using DIgSILENT Power Factory. The architectures are ranked based on performance parameters using a Pugh matrix. The most suitable architecture for the target PSV is LVDC, followed by MVDC, LVAC with AFE, MVAC, and conventional LVAC. reduction in efficiency. MV components have higher efficiency. Cable losses are lower.

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Section: Introductionmentioning

confidence: 99%