Future trends of electrical propulsion and implications to ship design h. Developments in electric and green marine ships mdpi. Hybrid propulsion is a type of propulsion in which 2 types of propulsion are combined to propel a ship or car or whatever is using the propulsion. Rms qm queen mary was a steamer cruise of 29 pax, built in 1936 and retired in 1967. Electrical plants and electric propulsion on ships. Dieselelectric propulsion plants guideline 20120731. In passenger ships, one or more gas turbines are used for fast cruising. Since the time man started using ships, various types of propulsion systems have been used depending on the ships requirement. The integration process uses a methodical system for developing tailored configurations for the range of ship applications. Fully electric propulsion on a passenger ship becomes possible. Request pdf modelization and multimodel control of ship electric propulsion system the ship propulsion system is a nonlinear and uncertain system.
Find materials for this course in the pages linked along the. The latter powers deep space 1, nasas successful ion propulsion vehicle, which now cruises the solar system 7 million miles 220 million kilometers from earth, testing inspace hardware and electric propulsion capabilities. And in the last two decades of the present time, the marine vessel community has witnessed the development of the. Electric machines, power electronics, electric propulsion system for ships. Design and control of hybrid power and propulsion systems for. This article covers the two main types of electrical drive systems currently in use frequency controlled a. What is hybrid propulsion, and what types of hybrid propulsion exist.
The electric propulsion system used on merchant ships is categorized into twotypes depending upon type of prime mover attached to it. Dieselelectric drive takes less space than the equivalent directdrive twostroke engine allowing the aft section to be slimmer and giving better flow over the propeller. Recent renewed interest in diesel electric marine propulsion creates a need for more understanding of how the systems work and how they are laid out. Kerrebrock and subsequently adapted by manuel martinezsanchez. All main ac swbds and transformers are however no longer needed and you have the most flexible power and propulsion system to date. Other devices, such as magnetoplasmadynamic thrusters, vasimr and pulsed induction thrusters, may offer future primary. Dieselelectric propulsion systems are used on ships with special operational requirements. Dieselelectric propulsion systems are used on ships with special operational.
Electricity shifts the currents of ship propulsion. Differential evolution, electric propulsion system, electric boat, facility. Military usage has been limited to auxiliary ships such as tugboats mostly because of size and weight 7. Ion and hall thrusters march 2008 the research described in this publication was carried out at the jet propulsion laboratory, california institute of technology, under a contract with the national aeronautics and space administration. In ships with integrated electric drive, the electricity produced by the engines and generators is sent by cable to an electric switchboard that divides the. Oleson national aeronautics and space administration glenn research center cleveland, ohio 445 abstract this paper provides an overview of nasas activities in the area of electric propulsion with an emphasis on project. Marine electric propulsion marine propulsion is the mechanism or system used to generate thrust to move a ship or boat across water. These baselines anticipated the product line approach to technology development. Hybrid power systems can combine different power sources with.
He wrote in the new york herald, in february 25, 1917. The diesels provide reliable redundancy and an efficient source of electricity when in port, at anchor, or drifting. A medium speed diesel engine has a low fuel consumption at the optimum operation point. Pdf the main objective of this paper is to present an analysis on diesel electric.
Onboard dc grid the step forward in power generation and. Ieee proceedings 2015 1 the marine vessels electrical. Past and present use of electric ships in the energy industry. Diesel electric propulsion systems are used on ships with special operational requirements. Jan 04, 2017 fully electric propulsion on a passenger ship becomes possible posted on january 4, 2017 january 4, 2017 by news hound the norwegian explorer cruise line, hurtigruten, is to build its two new expedition ships using a new and environmentally sustainable hybrid, electric propulsion technology from rollsroyce. The distribution system consists of switchboards, transformers and frequency converters. Integrated full electric propulsion system for tanker ships.
Integrated full electric propulsion system for tanker. Electrothermal propulsion, wherein the propellant is heated by some electrical process, then expanded through a suitable nozzle 2. Pestana head of ship design, abb marine, billingstad, norway this abstract. Pdf a diagnostic of dieselelectric propulsion for ships. As an example of changing times in marine propulsion, consider the two cruisers.
Conversion to electric propulsion is hence a natural step. Most modern ships are propelled by mechanical systems consisting of a motor or engine turning a propeller. Background and issues for congress summary the navy in january 2000 selected electricdrive propulsion technology for use on its planned nextgeneration dd21 landattack destroyer and is considering it for use on other kinds of navy ships as well. This whole system, along with other vital machineries is known as the ship propulsion system. The type of propulsion system used in a ship depends on several factors such as speed, power, ship type etc. Electric propulsion the acceleration of gases for propulsion by electric heating andor by electric and magnetic body forces. Pdf full electric ship propulsion based on a flying capacitor. Modern electric drive ships make use of integrated power plants with multiple ac generators supplying both propulsion and ship service power from the same bus. Advances in power and propulsion systems and energy.
Dieselelectric marine propulsion marine diesel engine. In 1893, one of the first electric boats electricity carried passengers on the river thames in england. Nov 20, 2007 tote had decided to build two new ships to replace its fleet of three aging steam propulsion ships used on the tacoma, wash. An overview of electric propulsion activities at nasa. Fully electric propulsion on a passenger ship becomes possible posted on january 4, 2017 january 4, 2017 by news hound the norwegian explorer cruise line, hurtigruten, is to build its two new expedition ships using a new and environmentally sustainable hybrid, electric propulsion technology from. Reference herein to any specific commercial product, process, or service. This section includes select lecture notes for the course excluding lessons on aircraft propulsion and jet engine rotordynamics. Spacecraft powered by typical electric propulsion systems may eject propellant at up to 20 times the speed of conventional chemical systems, delivering a much higher specific impulse, or the amount of thrust obtained for the weight of fuel burned. The usage of electric propulsion is quite common these days onboard commercial cruise ships. Electric propulsion systems are designed according to the power station. Diesel electric propulsion systems are used on ships with special requirements.
Next, we propose a technique for modeling the electric propulsion system of a ship and. Review of allelectric and hybridelectric propulsion. An electrical system in a vessel with electric propulsion normally consists of an electricity generation power plant, a distribution system and a motor for propulsion. Ieee proceedings 2015 1 the marine vessels electrical power. Classifies mechanical, electrical and hybrid propulsion for ships. While paddles and sails are still used on some smaller boats, most modern ships are propelled by mechanical systems consisting a motor or engine turning a propeller, or less frequently, in jet drives, an impeller. Review of allelectric and hybridelectric propulsion technology for small vessels march 2015 1 1. Power accounting for ship electric propulsion valery vodovozov and tonu lehtla tallinn university of technology estonia valery. Dimensioning of electric propulsion motors for warships. History and recent advancements of electric propulsion and. The first aircraft carrier to be built under the cvn 21 program will have a newly designed nuclear power plant, and the navys amphibious replacement ship, lha 6, will utilize a combined gas turbine and electric propulsion system instead of the steam propulsion systems now used in many amphibious warfare ships. Since the 1990s electric propulsion has been revaluated with increased interest and development in the naval sector. Voltage stability in an electric propulsion system for ships.
A dieselelectric system is an integrated electric propulsion system in which no gas turbines are used and all of the engines are diesel. Dieselelectric propulsion pushes ahead professional. Diesel electric marine propulsion compared to direct diesel drives, diesel electric propulsion systems are technically and operationally superior in virtually all applications. Ship manoeuvrability is improved by high torque at low speed navigation. Gao propulsion systems for navy ships and submarines. The general classes of systems for electric propulsion are. Optimized design of electric propulsion system for small crafts. Electric propulsion systems, electric drive systems. Next in gard news nonmariners guide to ship construction and operation is a basic guide to marine propulsion systems, which produce the thrust to push a ship across water. Renewed interest in dieselelectric marine propulsion.
Justifying the name, the shaft from prime mover is used to turn the propeller by either with the help of high speed motor or by reduction gear or directly by a slow speed motor. Electrostatic propulsion devices electrothermal propulsion devices electromagnetic propulsion devices. While paddles and sails are still used on some smaller boats, most modern ships are propelled by mechanical systems consisting of an electric motor or engine turning a propeller, or less frequently, in pumpjets, an impeller. These systems are based on the principle of speed controlled ac or dc motors driving the propeller directly or by gearing. Welcome to the propulsion systems analysis branch at nasa glenn research center in cleveland, ohio. Manager, ecology engineering group, engineering division, ihi marine united inc. Pdf modern ship propulsion systems are looking towards to high efficiency electric drive systems. Electric propulsion systems for ships topics yoshifumi ajioka kiyoshi ohno increasing use of electric propulsion systems on ships as is the case with general automobiles that are driven on land, the main type of engine used on ships is the internal combustion engine motors such as diesel engines and gas turbines. As a result of that, queen elizabeth ii was inaugurated in 1987 with the. Tote had decided to build two new ships to replace its fleet of three aging steampropulsion ships used on the tacoma, wash. Arrangement of equipment can be designed freely allowing for a wide cargo space. United states government accountability office washington, dc. Powering the future with the integrated power system 268 may 1996 naval engineers journal figure 1. In this sense it is proposed to study the electric propulsion of ships as well as its composition.
The most reliable and low noise design is the direct drive. Introduction propulsion systems are those that are required to propel the vehicles to which they are attached. C motors and gives you a clear picture on the layout of the diesel electric marine propulsion systems. Recent developments in electric systems, power electronics, control strategies and electrical machines have all contributed to increase the viability of electric ship propulsion systems. Future trends of electrical propulsion and implications to. Energy saving technology of the dieselelectric propulsion system for japanese coastal vessels yamada hideki. A diesel electric system is an integrated electric propulsion system in which no gas turbines are used and all of the engines are diesel. Dieselelectric marine propulsion compared to direct diesel drives, diesel electric propulsion systems are technically and operationally superior in virtually all applications. An electrical system in a vessel with electric propulsion normally consists of an. These systems are based on the principle of speed controlled ac motors driving the propeller directly or by gearing.
Electric propulsion with diesels used as prime movers. Marine full electric propulsion power system matlab. Electric drive poses issues for congress concerning its costs, benefits and risks, and how the. Microgrids in the terrestrial grid often combine fossilfuel. The concept of electric propulsion is over 100 years old with batterypowered vessels recorded in russia and germany around 1870. Electrostatic propulsion, wherein the propellant is.
An overview of electric propulsion activities at nasa john w. This superiority has been a major reason for the steadily growing demand for dieselelectric main drives in marine engineering applications. Electric propulsion systems are designed according to. Over the last 10 years the electrical propulsion fleet grew three times faster than the world fleet.
Marine full electric propulsion power system open script this example shows a representative marine halfship electrical power system with base load, hotel load, bow thrusters and electric propulsion. For the purpose of analysis, the propulsion system has been separated. United states government accountability office washington. All hybrid propulsion systems that exist at this moment combine a conventional propulsion system combustion engine, turbine. At the start of construction, a nassco statement noted the innovative designs of the new 24knot vessels would make them the first ships in the u.
By this definition, propulsion systems are many and varied, starting from our muscles using which we propel ourselves in walking, running, swimming, and so on. Wartsilas extensive portfolio of dieselelectric propulsion solutions allows us to select the ideal. Electric propulsion system for ships the marine express. Electricity shifts the currents of ship propulsion signal.
Note that integrated power plants were not practical for many years because of the need to vary generator speed and output frequency in order to control propulsion motor speed. Review of all electric and hybrid electric propulsion technology for small vessels march 2015 1 1. Marine propulsion is the mechanism or system used to generate thrust to move a ship or boat across water. Powering the future with the integrated power system. Electric propulsion 127 historically, conceptually, and pragmatically, this. Navys amphibious assault ship uss makin island features the best of ges power and propulsion technology. Energy saving technology of the dieselelectric propulsion. Nikola tesla was an early proponent of electric propulsion for ships. The ideal simplicity of the induction motor, its perfect reversibility and other unique qualities render it eminently suitable for ship propulsion, and ever since i brought my system of power. Ips architecture and modules of electrical power for both ship service and electric propulsion loads. Electric marine propulsion systems ge power conversion. Oct 08, 20 electrical plants and electric propulsion on ships giuffrida, marco on.