Abstract
This paper proposes a preliminary design tool for active power filters’ (APFs) solutions to be applied in offshore oil and gas platforms, where power quality indices are typically low, and reactive power compensation and current harmonic mitigation are often desired. The proposed approach considers that APF selection and rating is a trade-off between performance and size, and that both component and system aspects need to be optimized to achieve a well-tailored solution. As size and weight are critical constraints in offshore applications, possible benefits of using Silicon Carbide (SiC) switches for the APF implementation are investigated. Moreover, different compensation strategies are compared, varying the connection point of the APF between two different voltage levels and assigning the APFs different compensation goals. Improvements in power quality indices, as well as APFs rating, number of components, power losses, and filter size, have been considered for both SiC and Silicon-based solutions to identify the best trade-offs suitable for the considered, energy intensive industrial application.
Highlights
In spite of the development of the renewable energy sector, gas and oil are determined to remain the two head energy assets until 2050 and beyond
It includes the gas turbines—synchronous generators (2 × 25 MVA), two 5 MW drilling motors controlled by 6-pulse rectifier-based variable speed drive (VSD)—nonlinear loads, a 4 MW gas compressor, and a 4 MW water pump-induction motor (IM) directly connected to the medium voltage 1 (MV1) bus
The electrical power system of an offshore oil and gas installation is characterized by high energy consumption but with constrained physical space and weight
Summary
In spite of the development of the renewable energy sector, gas and oil are determined to remain the two head energy assets until 2050 and beyond. References [25,26] present the design, performance analysis, and experimental results of high-speed motor drives that are usually required in the O&G industries that use SiC Mosfet technology Based on these trends and needs of the O&G sector, the core contribution of the paper is to provide a SAPF pre-selection tool to orient the O&G platform designer. Pumps, and compressors are the main loads powered by electric motors They usually reflect 75–80% of the overall electric load on the platform and, as their individual power consumption is in the multi-MW range (up to several dozens MW), they are typically connected to the MV2 bus.
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