The power system envisioned for new ships in the period supports a modular approach. The differences are largely due to the added flexibility that an integrated power system ips can provide the ship designer. Jul, 2017 currently, epis have found an application in all types of ships. Propulsion and electric power systems have always had to satisfy speed and ship service power requirements. Flexible ship electric power system design seminar report. Power electronic converters for ship propulsion electric motors damir radan marine cyberneticsenergy management systems part of the ntnu project all electric ship department of marine technology, ntnu 1. This experience suggested there might be other people much like myselfoutside the power industry, but vitally concerned with it. Recent developments in power electronics and machines also allow an integrated electric shipboard power system design. Dec 04, 2017 we have recently reported on several large ferries going all electric and now a massive cargo ship in china has been officially launched with a battery powertrain. The electricpower systems of electrically driven modern ships are constructed as unified electricpower systems uepss ensuring power supply both of epis and the many power consumers on a ship. Read here to learn about the main power distribution system onboard a ship. Its important that the naval architect take advantage of these opportunities, otherwise a suboptimized ips ship design may not outperform an optimized conventional mechanical drive ship design.
It has already been pointed out that for transmission of electric power, 3phase, 3wire a. Flexible test bed for mvdc and hfac electric ship power system architectures for navy ships. Power on ships is supplied through circuit breakers to large auxiliary machinery at high voltage. This naval power systems nps technology development roadmap tdr aligns. The system consisted of a single dynamo supplying current to 247 lamps at a voltage of 10 volts d. These models are critical in the overall design process and depend on the circuit model to specify components and their interconnections. Introduction the predominant type of prime movers for dp propulsion plants is the electric drive. Focused on the trend toward electrification to power commercial shipping, naval, and passenger vessels, this book helps new or experienced engineers master cuttingedge methods for power system design, control, protection, and economic use of power. Electric ship power and energy system architectures dr. Electric power is essential to a modern naval ship s. The defkalionthalis and dcship projects abstract this paper provides an overview of the research efforts in progress to investigate the performance of the ship electric grids at the early design stage as well as during operation. Crafts, and supplement sa, marine power convertersinverters and power converterinverter systems, need not meet ul 1236 as referenced in abyc a20, battery charging devices. Have a pictorial view of a typical shipboard distribution system with its associated services. Predictive control for energy management in ship power systems.
Electric warship design process the generalized design process for designing electric warships is fundamentally the same as for conventional ship design. Power monitoring systems electric utility requirements trends in systems design there are many new factors to consider in the design of power distribution systems. Flexible ship electric power system design, seminar reports. There are numerous issues involved in the design of power. A study of electric power distribution architectures in. With these developments, modern ship electrical power systems have. In this paper the operation of a ship power system.
Foreword dnv is a global provider of knowledge for managing risk. It was during world war i that 230 volt, 60 hertz power systems were seriously introduced into naval vessels. The emergency power supply ensures that the essential machinery systems continue to operate the ship. Feb 12, 2016 get flexible ship electric power system design seminar report and ppt in pdf and doc. Get flexible ship electric power system design seminar report and ppt in pdf and doc.
The integrated power system provides the naval architect with many opportunities to optimize ship design. Hybrid similar to the t23 frigate, where mechanical drive and electric drive systems are combined. Flexible ship electric power system design seminar. The ships ventilating system is divided into six differ ent classes of fans, each designed to operate only under specific ship material conditions. Explore flexible ship electric power system design with free download of seminar report and ppt in pdf and doc format. Onship power management and voyage planning interaction. Toda y, safe and responsible business conduct is both a license to operate and a competitive advantage. Ieee ests 2017 august 612017 approved for public release 1. However, there are some large installations wherein the voltage is as high as 6600v. Electric ship power and energy system architectures. With the aid of detailed weather predictions it is now possible to decide a route that is optimized with respect to some criterion. In any case, an ess for onboard integration must be assessed taking into account technical and economic requirements during design phase and also its capability to ensure maximum ship power system reliability and redundancy. Synchronous, induction, and switched reluctance machines are competing candidates for vscf startergenerator systems. As the ips architecture allows more flexibility in ship design, reduction in.
Abstractseveral power architectures have been considered for. The electric power system is composed of the electric power generation and distribution system including generators, cables, switchboards, protective devices,converters and regulators up to the interface. Understand the essential and nonessential services, feeder and load side classifications, and main bus bar construction. In case of failure of the ship s main power generation system, an emergency power system or a standby system is used. Ship electrical power system optimal operation with. User equipment is any system or component installed in the ship which uses dc electric power as. This paper also introduces new approaches for designing ship power systems by using several new technologies. Electrical power system equipment section of the ships. Gattozzi the university of texas at austin center for electromechanics abstract advanced weapons and sensors increase demand on the electric power systems of navy surface combatants. Federal and state legislation has been introduced to reduce the output of carbon emissions into the environment. Flexible test bed for mvdc and hfac electric ship power. Electric power system concepts for integration of advanced sensor and pulsed loads in the ddg51 class ships j. Naval dcs electric propulsion systems are integral designed and matched to your vessels requirements and duty cycle.
Naval power systems technology roadmap defense innovation. Pdf studying ship electric energy systems with shaft generator. Batteries or an emergency generator or even both can supply emergency power on ships. Electric power trains elevate gun turrets and missile launchers. The shipboard power system supplies energy to electric equipment on ships. This phenomenon can cause problems to electronic equipment that use zero crossings for frequency or time calculation. Onship power management and voyage planning interaction by mikael frisk voyage planning methods have advanced signi. Iep where a common power source is utilised for both ship services and propulsion system, with the propulsion being purely electric. Studying ship electric energy systems with shaft generator.
Massachusetts institute of technology ship design and system modeling. Electric power is essential to a modern naval ships. Electric power system concepts for integration of advanced. Flexible ship electric power system design, seminar. This manual is intended as a guide for electrical engineers and designers hereafter referred as the ae for the planning and design of the electrical power distribution and related systems. The most obvious element in the system is the main switchboard. Naval ship propulsion and electric power systems selection. Flexible ship electric power system design semantic scholar. Have you ever wondered how shipboard electrical systems are networked.
History and recent advancements of electric propulsion and. Solas, require at least two generators for a ship s main electrical power system. In such a system, propulsion motors, power conversion and distribution networks, service and hospitality loads in addition to mission loads are supplied by an integrated electric shipboard power system 1. Within the integrated electric system ips, the electric plants provide power to all ship loads including propulsion and shipboard service loads. Until the 1914 to 1917 period, the early electrical power systems were principally d. Newbuildings machinery and systems main class electrical. Since world war ii the ship s electrical systems have continued to improve, including the use of 4,160 volt power systems and the introduction of electronic solidstate protective devices. The first electrical power system was installed on the uss trenton in 1883 ykema 1988. Design of propulsion and electric power generation systems. Shipboard electrical power systems addresses new developments in this growing field. We approach every project from a naval architecture perspective in order to achieve the highest overall system efficiency possible from the solar array to the propeller. Index termsmarine vessel electrical power system, propulsion system, steam turbine, dieselelectric propulsion, variable speed drives, power electronics i.
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