Electric Drives Sample Clauses

Electric Drives. Today the large majority of inland and coastal vessels is equipped with internal combustion engines, the so-called diesel-direct propulsion. The engine torque most commonly is transmitted to the propeller via a gearbox or directly for slow-speed engines which can be reversed. These systems are technically mature, durable and cost-effective. Direct propulsion is also efficient for seagoing vessels travelling long distances with a largely constant operating point. Even if combustion engines with alternative fuels can be integrated analogue, x-electric drives are increasingly being used in inland and coastal shipping though the additional energy conversion brings additional losses. On the one hand, this is due to the complex operating profiles with very different power requirements, for example when sailing up and down rivers with fluctuation water depths. On the other hand, not all fuels and combustion processes are suitable for meeting the characteristics of the propeller in terms of rpm-dependent torque. In addi- tion, an appropriately designed x-electric drive system can be adapted more flexibly to future develop- ments in clean drives. For the deployment of electric drives on board, products from numerous manufacturers are available in the required power range of 500 kW – 1200 kW. If the individual technical requirements and boundary conditions of a ship cannot be covered by the manufacturer's portfolio, many manufacturers offer the option of having a customised drive built. In principle, DC motors or three-phase synchronous motors can be considered. The differences, advantages and disadvantages of the various motors are explained below.
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Related to Electric Drives

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