A marine shore power supply system and its control method based on matrix control

Abstract

The invention relates to a marine shore power source system based on matrix control and a control method thereof. The system comprises a power conversion unit, a power unit driver, a unit controller, a central controller and a filtering device, wherein the power conversion unit is used for receiving a trigger signal of the power unit driver to realize input rectification and inverting control for a shore power source; the power unit driver is used for receiving a PWM control command transmitted by the unit controller to realize unified PWM trigger control for the power conversion unit; the unit controller is used for collecting signal conditioning and control protection action trigger of the signal and transmitting the PWM command of the central controller to the power unit driver; the central controller is used for realizing system control of the shore power source system, emitting the PWM control command through a control algorithm and transmitting to the unit controller through an optical fiber; the filtering device is used for carrying out filtering treatment on input or output of the shore power source to meet the requirement of the shore power source for power supply harmonic wave. Through the technical scheme of the invention, flexible configuration of the capacity of the shore power source is realized, and the power supply reliability of the power source is improved.

Description

[0001] Technical field: [0002] The invention relates to the technical field of power supply, and more specifically relates to a matrix control-based marine shore power supply system and a control method thereof. [0003] Background technique: [0004] With the rapid development of my country's economy and the rapid development of the shipping industry, the number and time of ships calling at the wharf have increased dramatically. However, existing ships usually use fuel oil products such as heavy oil and diesel to generate electricity when they are berthing to meet the electricity demand when they are berthing, which has caused huge pollution to the port environment. In order to effectively solve the increasingly prominent environmental problems and reduce the energy consumption and pollutant discharge of ships calling at ports, my country's ports have gradually used land-based shore power to supply power to ships calling at ports to meet the electricity demand of ships calli...

AI Technical Summary

Problems solved by technology

The traditional "high-high" power supply method or "high-low-high" power supply method cannot meet the flexible configuration requirements of shore power supply capacity, or choose a power supply with a larger capacity to meet all power supply capacity requirements and reduce power supply efficiency, or choose capacity Smaller power supplies meet power requirements within a specific range

In addition, the power supply reliability of these two power supplies is not high, and the damage of any power unit will lead to the derating of the entire power supply or the termination of power supply, which cannot guarantee the normal operation of ships in port

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