Optimal configuration method of hadal large-scale semi-submersible drilling platform power distribution system

Abstract

The invention discloses an optimal configuration method of a hadal large-scale semi-submersible drilling platform power distribution system. As the design and the layout of a power distribution system directly influence the normal operation of a drilling platform, the optimal configuration method of the invention strengthens a regional power supply principle by optimizing a main single diagram ofa whole ship power supply system, regulates a power distribution system scheme according to system and region principles, optimizes a DP3 (Dynamic Positioning 3) main cable path and ensures that the whole power distribution system is more reasonable by optimizing the configuration of a drilling power distribution system and carrying out load and balance calculations of a power supply system, thereby reducing the construction difficulty and saving the cable cost and the labor cost. The invention has the advantages of strong operability and wide operation range and solves the design and layout difficulties of the ship power distribution system.

Description

technical field [0001] The invention relates to the technical field of installation of marine engineering equipment, in particular to an optimal configuration method for a power distribution system of an ultra-deep sea large semi-submersible drilling platform. Background technique [0002] The design and layout of the power distribution system of the semi-submersible drilling platform has always been the key to the design and manufacture of the semi-submersible drilling platform. The centralized power supply takes a main switchboard as the core and is directly connected to the electrical equipment. The centralized power supply mode is easy to operate and easy to control Realization, regional power supply refers to the arrangement of power generation systems near users in a small-scale and decentralized manner. Compared with the centralized power supply mode, regional power supply has the following advantages: no or very low transmission and distribution losses; increased tran...

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Problems solved by technology

[0002] The design and layout of the power distribution system of the semi-submersible drilling platform has always been the key to the design and manufacture of the semi-submersible drilling platform. The centralized power supply takes a main switchboard as the core and is directly connected to the electrical equipment. The centralized power supply mode is easy to operate and easy to control Realization, regional power supply refers to the arrangement of power generation systems near users in a small-scale and decentralized manner. Compared with the centralized power supply mode, regional power supply has the following advantages: no or very low transmission and distribution losses; increased transmission and distribution can be avoided or delayed Power distribution costs; suitable for changes in various heat-to-electricity ratios, allowing the system to be adjusted according to heat or electricity requirements to increase annual equipment utilization hours; low civil engineering and installation costs; each power station is independent of each other, users can control it in vain, and there will be no accidents Large-scale power supply accidents, high reliability of power supply; remote control and monitoring of regional power quality and performance; greatly reduced environmental protection pressure, but the current centralized power distribution mode adopted by the semi-submersible drilling platform power distribution system is likely to cause cable laying distance Too long leads to a waste of cable resources; local cables are too concentrated, which seriously conflicts with the ventilation of the piping system, and it is extremely difficult to coordinate among specialties, making on-site construction difficult

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