Redundancy support method for fast ethernet system based on dp3 drilling ship
A drilling ship, DP3 technology, applied in the direction of electrical program control, comprehensive factory control, etc., can solve the problems that the system cannot realize automatic control, single controller control, low system reliability, etc., and achieve reasonable cost control, efficient configuration, and system The effect of concise structure
Active Publication Date: 2017-03-29
上海中远船务工程有限公司
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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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Embodiment 1
[0025] Embodiment 1: as attached figure 1As shown, the power system is an 11KV medium-voltage system. The power system of the entire ship is composed of 3 sets of medium-voltage generators. Each set of 2 medium-voltage generators of 7370KW is respectively installed in the three engine rooms of the A60 fire compartment. The three main power lines The system adopts A60 fire separation, from the corresponding medium-voltage power distribution system to the transformer and then to the 440V low-voltage power distribution board are completely A60 fire-proof separation from each other; the propellers corresponding to the three medium-voltage power distribution boards are left front propeller T2 and Left rear thruster T5, front middle thruster T1 and rear middle thruster T4, right front thruster T3 and right rear thruster T6, from 11KV medium pressure system to bow thrusters T1, T2 and T3 adopt A60 fire separation; , T4, T5 and T6 stern thrusters are used for navigation, and the guara...
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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 dynamic positioning, 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 appeared. DP2 basically has two sets of all systems, but only one set of cab and power propulsion system; but DP3 goes further, not only all systems are double sets, but also Even the driver's cabs are double-set, and the two sets of driver's cabs are located at both ends of the bridge, and the middle is separated by A60 including the fire door system; any set of systems or equipment, even dynami...
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IPC IPC(8): G05B19/418
Inventor 汪达丁海郑志峰万洁曾国咏段陟杨巍巍
Owner 上海中远船务工程有限公司