As the market and shipowners strive to achieve green energy saving, optimize operation and increase the demand for ship high-tech added value, how to build a high-tech green energy-saving ship is the direction that all the shipping enterprises in the downturn need to work hard. The reliability is directly related to the safety and economy of the ship. Safe and reliable ship automation and power distribution system solutions can effectively control energy consumption and improve the overall operation efficiency of the ship.
As a global specialist in energy efficiency management and automation, Schneider Electric has more than 90 years of experience in the global maritime business. It provides design concepts, design consultants, design and coordination of the entire energy management system, product supply, manufacturing and Project management and after-sales service in the course of operation of the ship, and is devoted to promoting the shipbuilding and shipping enterprises through constant product and technological innovation, continuously improving its competitive strength and accelerating the transition to green high-end business. Eight 3,800TEU refrigerated container ship project is Schneider Electric in the shipbuilding industry is another important practice.
Yangtze River Shipbuilding is the largest privately owned shipyards in China and the largest ship-to-hand shipping company. The eight 3,800 TEU refrigerated container ships for the ship management in South Hamburg, Germany, Peter-D'Or, Germany and Gossmir Greece meet IRCC-SP classification Requirements, the application of intelligent ship technology, can be called "medium-sized container ship Rolls-Royce." Yangtze River Shipbuilding that China should achieve the strategic goal of building a maritime power, the shipbuilding industry must upgrade and adjust the industrial structure, the company more Will take the lead, will go to capacity in the end, through innovative products and technologies, to achieve industrial restructuring and upgrading.
However, the road to success is full of thorns.As a new Panamax ultra-high-end refrigerated container ship, 3800 TEU container ships can be loaded with 870FEU + 130TEU refrigerated containers, generator power total capacity of 16MW, more than ten thousand boxes of ships level. Its distribution system will be very complex, the ship's power distribution scheme layout must take full account of the entire ship all the refrigerated containers and deck the possibility of the project as the project requires all of the nacelle and hold the fan are used in variable frequency control scheme, the number of inverter The temperature of the installation environment is very high, meanwhile, the intelligent monitoring system, the energy consumption control, the stability of the power consumption and the ability of harmonic treatment have all become the technical challenges which are urgently needed to be solved in the Yangtze River shipping industry.
In addition, the owner for the cargo hold frequency conversion, but also proposed a new control concept 'cargo tank frequency conversion system and control philosophy' requires that all systems accurately in accordance with the location information of refrigerated containers automatic control; and based on the existing refrigeration distribution power monitoring system As well as the cargo tank frequency conversion system control, put forward the 'best power control' requirements.These two energy-saving control concepts are the first in the world shipbuilding industry, requires large data acquisition support and very complex software programming analysis, and involves a large amount of preparatory work Technical difficulty is very large.
After rigorous technical inspection, the Yangtze River Shipyard Schneider Electric eventually selected as a partner. Yangtze River Shipbuilding Group, Lu Jianwei, deputy general manager, said: "Schneider Electric in the global maritime business has more than 90 years of history, to provide ship design concepts , Design consultants, design and coordination of the entire energy management system, complete solutions for product supply, production and project management, and after-sales service in the course of shipping operations, etc. We believe that with many years of accumulated experience in the maritime field around the world, Schneider Electric They can bring them more forward-looking and customized technologies and services. '
In response to the specific needs of the Yangtze River shipping industry, Schneider Electric provides shipbuilding solutions and related analysis services including power distribution equipment, frequency conversion automatic control system and power quality management system. Based on the interconnection of EcoStruxure distribution Products and solutions that provide strong support to Yangtze River Shipbuilding in structural de-capacity and green-friendly environment-friendly vessels in the transformation of high-end smart ships.
Du Xiaoliang, Technical Leader of 3800TEU Project of Yangtze River Shipyards INTRODUCTION: Schneider Electric has configured the 3800TEU container ship with cabin seawater and cabin fan frequency conversion system which can automatically adjust seawater and power according to the seawater temperature and the working status of the host / auxiliary machine , More conventional control system, the annual total savings of 30 to 40% of the energy consumption.
In order to realize the best power control of the project, Schneider Electric is also equipped with a cargo fan frequency conversion system and a refrigerating power distribution system, which combine power balance and optimal power control, and can automatically adjust the temperature according to the ambient temperature and refrigerated Container loading, automatic control of the ambient temperature of the cold box to achieve energy-saving effect, the more conventional systems, annual total savings of 30% energy consumption.
For the harmonic problem, Schneider Electric adopted a central active filter control program, the program fully consider the power distribution board about the distribution of the state, according to a variety of complex conditions for automatic harmonic control and improve the stability of the system And safety.After trial flight, with all the frequency conversion turned on, the variable frequency power reached 1,415 kilowatts, the total harmonic content was controlled within 3%, and the standard requirement was 8%, it is gratifying.
In the current direction of the development of smart ships and green ships, the refrigerating distribution power monitoring system initiated by the electrical system of the 3800 TEU container ship project and the first two world shipbuilding circles that control the "best power control" of the cargo tank frequency conversion system can be very intuitive Effectively saving fuel for shipping operations, reducing the environmental pollution caused by carbon dioxide and sulfide, and saving objective costs for shipowners will have a far-reaching impact on the future of refrigerated container ships.
In addition, Schneider Electric's 7-day, 24-hour service network around the world also solves the worries of ship owners for maintenance and repairs.
The cooperation between Yangtze River Shipyard and Schneider Electric is undoubtedly a warm current in the shipbuilding market in the midst of economic hardship and thanks to Schneider Electric's expertise in energy efficiency management and automation, Electrical safety and reliability, as well as digital operation and management. This has not only promoted the pace of manufacturing itself towards high-end vessels, but also led the industry to transform itself into a green, modern and environmentally friendly shipbuilding industry, attracting more and more qualified customers , To meet the market demand for innovation through long-term strategic cooperation, both in helping China's shipbuilding industry to achieve a win-win intelligent manufacturing, but also for the development of the shipping market to add a warmth, so that employees, owners and more People can enjoy the beautiful and convenient life brought by the green intelligent vessel.