Redundancy support method based on DP3 (Dynamic Positioning 3) drilling ship benefit fast Ethernet system

Abstract

The invention provides a redundancy support method based on a DP3 (Dynamic Positioning 3) drilling ship benefit fast Ethernet system. A network system is divided into a network A and a network B which are of A60 division, all NETWORK SWITCH BOXes are designed as groups A and B according to the network A and the network B, and all work stations are simultaneously connected to paths A and B; any one of the network A and the network B is simultaneously connected to all controllers and sensors in main DP and a standby DP; when any point on the network A has a fault, the system automatically judges and acquires data by virtue of the network B, and the reverse is true. A modular design is adopted, the redundancy support method completely conforms to the DPS3 (Data Processing Station 3) standard and can be used for realizing efficient allocation, management and scheduling of electrical energy of a drilling ship; the system structure is concise and clear, and the cost control is reasonable; the stability, security and reliability of the system can be obviously improved.

Description

technical field [0001] The invention relates to the general control or regulation system technology of G05B, especially the redundancy support method based on DP3 drilling ship aiding Fast Ethernet system. Background technique [0002] The dynamic positioning technology DP is DynamicPositioning, which has been widely used in marine engineering ships. Offshore engineering ships are generally operating ships far from the shore, and the cost of stopping production or returning to the factory for maintenance due to failure is very high. In order to reduce this possibility, DP2 and DP3 systems appeared; DP3 goes a step further and has a stronger tolerance to single point failures. The difference from DP2 is that 1) DP3 requires A60 division; 2) DP3 must have a DP backup control room 3) The biggest single point of failure of DP3 is a power compartment, such as an engine room or a medium-voltage switchboard room; any point or line failure, even a fire or flooding in the power comp...

AI Technical Summary

Problems solved by technology

[0006] However, there are key defects in the Ethernet-based common controllers in the prior art, that is, there is no backup redundancy, and the system reliability is low. Existing platform energy management systems are often controlled by a single controller. Once the controller fails, the system will not be able to Realize automatic control function, in some cases, may cause serious consequences, low system reliability

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