CN-122001080-A - Ship greenhouse gas emission reduction offshore test verification system based on energy efficiency management and control

CN122001080ACN 122001080 ACN122001080 ACN 122001080ACN-122001080-A

Abstract

The invention discloses an energy efficiency management-based marine greenhouse gas emission reduction test verification system, which relates to the technical field of ship engineering and marine equipment and comprises a central data server, wherein the central data server is in communication connection with an energy source multi-element integrated platform which is used for constructing a direct-current distribution board energy management system, and integrating and coupling various power sources carried by a ship with a safe storage system covering an LNG (liquefied natural gas) dual-fuel generator set to form a multi-energy marine test mother platform. According to the invention, the ship direct-current distribution board energy management system is constructed, heterogeneous power sources of the ship battery, the fuel cell, the internal combustion engine and the fuel gas supply system are integrated on the same platform, the platform has a plug and play function, and can synchronously develop independent or parallel operation tests of various power sources, so that a unified test environment is provided for stability and economy evaluation of a novel emission reduction technology, and the systematicness and comparability of offshore verification are improved.

Inventors

DIAO FENG
YAO WEN
LIU TIANYU
Lv jiang
ZHAO ZHIWEN
ZHANG SHAN
ZHENG JIAJUN
HUANG ZHEN
TENG YAO
YANG EN

Assignees

深海技术科学太湖实验室连云港中心

Dates

Publication Date: 20260508
Application Date: 20260114

Claims (10)

1. The marine greenhouse gas emission reduction test verification system based on energy efficiency management and control comprises a central data server, and is characterized in that the central data server is in communication connection with the following modules: the energy multi-element integrated platform is used for building a direct-current distribution board energy management system, and integrating and coupling various power sources carried by a ship with a safe storage system covering an LNG (liquefied natural gas) dual-fuel generator set to form a multi-energy offshore test mother platform; the intelligent electric drive control center station is used for constructing a direct-current regional power grid by taking a 1000V direct-current distribution board as a core, and forming a uniform electric drive link through cooperation of an inversion converter and a permanent magnet motor; the full-ship energy consumption monitoring module is used for acquiring energy consumption data of each system of the power generation, propulsion and auxiliary machines through a sensor network distributed over each energy conversion and consumption node of the full-ship, and constructing a full-range energy flow panoramic view; The emission tracing module is used for deploying a gas concentration sensor at a key position of the exhaust pipeline and monitoring the concentration and total amount of emissions in different power modes; And the intelligent test control module dynamically optimizes the load distribution and start-stop strategy of each heterogeneous power source based on the energy consumption, the emission, the working condition and the navigation task information, and automatically guides the system to operate in the high-efficiency interval of each power device.
2. The marine greenhouse gas emission reduction test verification system based on energy efficiency control according to claim 1, wherein the energy source multi-element integrated platform comprises a multi-fuel power test unit and a fuel gas supply, storage and control unit; the multi-fuel power test unit is used for integrating heterogeneous power sources comprising a marine battery, a fuel cell, an internal combustion engine and a fuel gas supply system by using a direct-current distribution board energy management system built on the basis of a standardized physical interface and an electrical grid-connected protocol, realizing plug and play through the standardized interface, and constructing an integrated test platform of multi-energy hybrid power; the fuel gas supply and storage management and control unit is used for constructing a safe supply and storage system covering the LNG and liquefied natural gas dual-fuel generator set, and is physically integrated with various power sources and coupled with a system level through the direct-current distribution board energy management system.
3. The marine greenhouse gas emission reduction test verification system based on energy efficiency control according to claim 2, wherein the multi-fuel power test unit comprises the following steps: based on a standardized physical interface and an electric grid-connected protocol, a direct-current distribution board energy management system is built, and four types of heterogeneous power sources including a marine battery, a fuel cell, an internal combustion engine and a fuel gas supply system are electrically integrated; The four types of power sources are connected into the direct-current distribution board energy management system through the standardized interface to form a plug-and-play modularized test interface; Under dynamic sea conditions, the output power, voltage, current and operation stability parameters of four types of power sources are synchronously collected, and joint debugging test and performance evaluation of the multi-energy system under the condition of ship load change are carried out.
4. The marine greenhouse gas emission reduction marine experiment verification system based on energy efficiency control according to claim 2, wherein the gas supply, storage and control unit comprises the following steps: Constructing a safe storage system covering the LNG storage tank and the liquefied natural gas dual-fuel generator set, and configuring pressure, flow and temperature sensors to perform full-link monitoring on the fuel conveying process; The safe power supply and storage system is coupled with a marine battery, a fuel battery, an internal combustion engine and a fuel gas supply system in a system level through a direct current distribution board energy management system, and the fuel supply and the power output are cooperatively controlled; An emergency cut-off and evaporated gas recovery mechanism is established, an air supply pipeline is automatically isolated when pressure abnormality or leakage is detected, and a safety protection program is started.
5. The marine greenhouse gas emission reduction marine test verification system based on energy efficiency control according to claim 2, wherein the electric drive intelligent control center station comprises a direct current networking power distribution unit and a propulsion energy efficiency optimization unit; The direct current networking power distribution unit is used for constructing a ship direct current regional power grid framework of a multi-energy-shared bus by taking a 1000V direct current power distribution board as a core, and integrating solid-state circuit breakers to perform grid connection management and intelligent allocation of different voltage classes and characteristic power supplies; The propulsion energy efficiency optimizing unit is used for constructing an electric propulsion system by taking the permanent magnet motor as a core propeller and matching with a high-performance inverter converter to perform intelligent cooperation and energy efficiency optimal control of double paddles and multiple modes.
6. The marine greenhouse gas emission reduction marine experiment verification system based on energy efficiency management and control according to claim 5, wherein the implementation steps of the DC networking power distribution unit are as follows: a 1000V direct-current distribution board is used as a core, a direct-current regional power grid framework of a multi-energy-shared bus is constructed, and multiple types of power supplies including marine batteries, fuel cells and liquefied natural gas dual-fuel generator sets are connected; Solid state circuit breakers are configured on each power supply branch circuit to carry out grid-connected management, fault isolation and intelligent power allocation of power supplies with different voltage classes and output characteristics; and the output power of each power supply is regulated through monitoring the voltage and the current of the direct current bus, so that the stable operation of the power grid is maintained.
7. The marine greenhouse gas emission reduction marine experiment verification system based on energy efficiency management and control according to claim 5, wherein the propulsion energy efficiency optimization unit comprises the following steps: The permanent magnet motor is used as a main propeller, and the electric energy of the direct current bus is converted into alternating current through the inverter converter to drive the permanent magnet motor to operate; According to the ship navigation state and the load demand, the output frequency and the voltage of the inverter converter are dynamically regulated, and the permanent magnet motor is efficiently operated under different working conditions; based on a double-oar cooperative control strategy, the power distribution of the left propeller and the right propeller of the ship is optimized, so that the propulsion system can perform energy efficiency optimal control under various navigational speeds and sea conditions.
8. The marine greenhouse gas emission reduction marine experiment verification system based on energy efficiency management and control according to claim 5, wherein the whole ship energy consumption monitoring module comprises the following implementation steps: A sensor network covering a flowmeter, a power sensor and a temperature sensor is deployed at each energy conversion and consumption node of the whole ship comprising a fuel storage, a generator set, a propulsion system and an auxiliary machine system, and a whole ship energy consumption monitoring network is constructed; acquiring power generation power, propulsion power, auxiliary power consumption and fuel consumption data based on a sensor network, and forming a full range energy flow panoramic view through data fusion; and (3) based on the energy flow data in the full range energy flow panoramic view, carrying out accurate metering and energy consumption distribution analysis of multiple types of energy consumption of oil, electricity and gas.
9. The marine greenhouse gas emission reduction marine experiment verification system based on energy efficiency control according to claim 8, wherein the emission tracing module comprises the following implementation steps: a gas concentration sensor comprising CO 2 , NOx and SOx is arranged on an exhaust pipeline of the liquefied natural gas dual-fuel generator set and an exhaust pipeline of the internal combustion engine, so that the emission concentration of the generator set in actual operation is obtained; Collecting emission concentration data in different power modes based on deployed gas concentration sensors, and performing time stamp correlation with fuel consumption and power output data at corresponding moments; And calculating the total emission amount and the emission intensity of each power source under a specific working condition based on the associated data to form an accurate mapping relation of emission-operation working conditions.
10. The marine greenhouse gas emission reduction marine test verification system based on energy efficiency control according to claim 9, wherein the test intelligent control module comprises the following steps: Acquiring energy consumption data, emission data and ship navigation condition information output by a full-ship energy consumption monitoring module and an emission tracing module; Dynamically optimizing load distribution and start-stop sequences of the marine battery, the fuel cell and the liquefied natural gas dual-fuel generator set based on energy consumption, emission and working condition information; According to the high-efficiency operation interval of each power equipment, the operation mode is automatically adjusted, and the comprehensive energy efficiency optimal control of the whole ship is realized on the premise of meeting the power supply safety and propulsion requirements.

Description

Ship greenhouse gas emission reduction offshore test verification system based on energy efficiency management and control Technical Field The invention relates to the technical field of ship engineering and marine equipment, in particular to an energy efficiency management and control-based marine greenhouse gas emission reduction test verification system. Background In order to cope with increasingly severe global climate change challenges and increasingly strict greenhouse gas emission reduction regulations of the International Maritime Organization (IMO), the shipping industry is accelerating to change to green low-carbon, however, various emerging emission reduction technologies (such as alternative fuels, carbon capture, wind boosting and the like) lack systematic and large-scale verification means under real marine environment before being applied to real ships, and the performance reliability, environmental adaptability and economic feasibility of the technology are difficult to fully evaluate, so that a specialized and open marine real ship test and verification platform is urgently required to be constructed, the iteration and standard formulation of the scientific and objective data support technology is adopted, the technical application risk is reduced, the emission reduction scheme meeting the future regulation requirements is promoted to be rapidly matured and commercialized, and the sustainable type goal is realized by the power-assisted shipping industry. In the prior art, the traditional ship has a single power structure, lacks an integrated platform and a grid-connected interface which are compatible with various heterogeneous energy sources such as LNG, hydrogen, ammonia, batteries and the like, is difficult to verify dynamic response, safety boundary and economy of a multi-energy hybrid power system under real sea conditions, and evaluates multi-dependence model calculation or land test data in a test process, and lacks full-chain energy efficiency and carbon emission means for synchronously and continuously monitoring energy input-power conversion-propulsion output-final emission in real ship navigation, so that technical effects are difficult to quantitatively evaluate, and the novel emission reduction technology has high marine test risk and complex working condition, is difficult to realize energy efficiency optimal dynamic scheduling, fault early warning and emergency autonomous response under multi-system cooperation, restricts quick and safe iteration of high-risk technologies (such as hydrogen/ammonia fuel), so that a ship greenhouse gas emission reduction offshore test verification system based on energy efficiency management and control is provided to solve the problems. Disclosure of Invention In order to solve the technical problems, the marine test verification system for reducing emission of greenhouse gases of ships based on energy efficiency management and control comprises a central data server, wherein the central data server is in communication connection with the following modules: the energy multi-element integrated platform is used for constructing a direct-current distribution board energy management system, and integrating and coupling various power sources carried by a ship with a safe storage system covering an LNG (liquefied natural gas) dual-fuel generator set to form a reconfigurable multi-energy offshore test mother platform; The intelligent electric drive control center station is used for constructing a direct current regional power grid by taking a 1000V direct current distribution board as a core, and forming a unified high-efficiency electric drive link through cooperation of an inversion converter and a permanent magnet motor so as to carry out grid-connected management, power high-quality conversion and intelligent distribution and optimization control of propulsion loads of different voltage grades and different characteristic power supplies; The full-ship energy consumption monitoring module is used for collecting energy consumption data of all systems of power generation, propulsion and auxiliary machines through a sensor network distributed over all energy conversion and consumption nodes of the full-ship, constructing a full-range energy flow panoramic view and realizing accurate metering and traceability analysis of multiple types of energy consumption of oil, electricity and gas of the ship; The emission tracing module is used for deploying gas concentration sensors comprising CO 2, NOx and SOx at key positions of the exhaust pipeline, monitoring the concentration and total amount of emissions in different power modes, and realizing the accurate association of emission, fuel consumption and operation conditions; The intelligent test management and control module dynamically optimizes the load distribution and start-stop strategy of each heterogeneous power source based on energy consumption, emission, working conditions and navigation task inf