Ship electric propulsion monitoring device and method

Abstract

The invention relates to a ship electric power propulsion supervising device and method; the ship electric power propulsion supervising device comprises a monitoring device and a control device; powersupply system and electric power propulsion system equipment states are gathered, thus controlling the operations of the electric power propulsion system equipment; the monitoring device comprises anindustrial computer and an application program compiled by a high-grade language; the control device comprises a safety control unit and a main control unit; when the system runs, the safety controlunit gathers the important protection signals of the power supply system and electric power propulsion system equipment, thus determining the protection function of the system; the main control unit gathers equipment running signals, and controls the normal operation of the system according to control logics; the monitoring device gathers signals of the control device, and uses a friendly interface to display the data, alarms, forms and trends of the system; an interface playback function can assist crews to analyze abnormities. The monitoring and control functions are integrated, thus effectively improving the automation level of the power propulsion system; the safety control unit is arranged, thus effectively improving the safety and reliability of the system.

Description

technical field [0001] The invention relates to a ship automation technology, in particular to a ship electric propulsion monitoring device and method. Background technique [0002] With the rapid development of modern power electronic equipment and the propulsion requirements of special engineering ships, the electric propulsion method of the inverter controlling the motor to drive the propeller is more and more favored by the owners of engineering ships. Practice has fully proved that electric propulsion ships have excellent control Performance, low noise, flexible cabin arrangement and good economy. [0003] The ship electric propulsion control system is the core control system that controls the operation of electric propulsion equipment, and its reliability and stability will improve the safety performance of the ship. Since ships are special means of transportation, generally electric propulsion ships are equipped with two sets of electric propulsion systems and corres...

AI Technical Summary

Problems solved by technology

However, there is no fault-tolerant mechanism in this redundant configuration. The two sets of controllers collect signals separately. Once the collected signals are inconsistent, the calculation results of the controllers are inconsistent, which may lead to control errors.

Moreover, the cost of this method is very high, generally more than twice the price of traditional solutions

[0008] 3. The existing ship electric propulsion control system is not equipped with a dedicated monitoring system, only a touch screen or indicator board is configured as an extended display of the electric propulsion control system

If there is a complex fault associated with it, it will be difficult for the crew to analyze the fault

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