Deepwater blowout preventer set electric control system based on FPGAs (Field Programmable Gate Arrays)

Abstract

The invention belongs to the control field of deepwater drilling equipment and relates to a deepwater blowout preventer set electric control system based on FPGAs (Field Programmable Gate Arrays). The system comprises an overwater electric control system, an underwater electric control system and a transmission optical cable for connecting the overwater electric control system and the underwater electric control system. The overwater electric control system mainly comprises a central control unit, a driller control console and a captain control console. A working station, a database server, aVPN (Virtual Private Network) server and the like are arranged in the central control unit. The underwater electric control system comprises a blue-box electronic module and a yellow-box electronic module which are backed up mutually. The main parts of the underwater electronic modules are triple redundancy controllers based on the FPGAs, the controllers comprise three FPGAs and relevant peripheral circuits, and input signals and output signals need to be subjected to redundancy voting in redundancy voting modules of the controllers. The invention has the advantages that the underwater electronic modules have compact structure so that the size of an electronic sealing cabin is reduced; and due to the adoption of two triple redundancy controllers, the reliability of the system is greatly improved.

Description

technical field [0001] The invention belongs to the field of deepwater drilling equipment control, and relates to a deepwater blowout preventer group electric control system based on FPGA (Field-Programmable Gate Array, Field Programmable Gate Array). Background technique [0002] The deepwater blowout preventer group and control system have played a very important role in ensuring the safety of ultra-deepwater drilling operations. At present, foreign deepwater blowout preventer groups generally adopt PLC-based electronic control systems. The central processing unit module of the PLC is located in the central control unit on the platform, and a large number of input and output modules are located in the electronic sealed cabin of the underwater blue-yellow control box. . With the increase of deep-water drilling depth, the number of blowout preventer groups increases, the number of control objects increases, and the number of input and output modules also increases greatly, ...

AI Technical Summary

Problems solved by technology

With the increase of deep-water drilling depth, the number of blowout preventer groups increases, the number of control objects increases, and the number of input and output modules also increases greatly, which increases the volume of the blue-yellow electronic airtight cabin, increases the difficulty of manufacturing, and reduces the cost of the system. safety

In addition, since the central processor module is located in the central control unit, and the main part of the blue-yellow underwater electronic module is the input and output module, when the central processor fails, the system cannot normally control the various functions of the deepwater blowout preventer group

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