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驱动海洋推进和推进器

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海上的船只

卓越电力推进

基于电气的主推进为船舶设计提供了很大的自由度，并且由于机械限制，船舶的设计可以更有效地设计，而无需传统的设备布局限制。

电推进的好处：

  • 电源可以由任何数量的发电机提供，这可以使高冗余
  • 电机 +驱动组合仅在积极转动方位角推进器时才消耗能量
  • 环境受益于较低的燃油消耗和排气水平
  • 电推进是下一阶段开发 - 杂交的好平台。

一般而言，具有现代电动推进系统的船只的设计，即柴油电动，液化天然气电气甚至完全电动的船只，都可以很容易地转换为混合溶液。在最好的情况下，仅通过添加并行的电子存储系统，就可以使用电池电量来操作船只，例如达到峰值功率需求。在某些情况下，最佳解决方案是使用直流电源分布，而不是或与传统的交流电源分布一起使用。

Danfoss Drives针对海洋和海上行业的解决方案的班级数量最多类型批准来自九个当局：DNV-GL，ABS，局局Veritas，韩国登记册，CCS，Rina，Lloyds Register，RMRS和NK级。

在为海洋应用程序选择驱动器时，这为您提供了最佳的选择。

使用PTO/PTI的最佳推进器轴发生器

使用PTO/PTI的最佳推进器轴发生器

许多长途船只仍在使用直接柴油推进的情况下运行，根本没有电动推进系统。这些容器可以通过在螺旋桨和主发动机之间添加轴发电机/电动机来提高效率并优化主发动机负荷和排放。该解决方案，称为功率取出并输入功率（PTO/PTI），是一种电气附加组件，使这些容器更有效，甚至准备好杂交。在混合容器中，具有AC-DRIVE技术的轴发生器/电动机可以以各种速度控制推进机械，从而节省能量。

清洁混合动力推进

清洁混合动力推进

交流驱动器在杂交和整合中具有关键作用，并为海洋和离岸行业提供答案，这些行业正在寻找减少柴油消耗并最大程度减少排放的方法。朝着使用清洁燃料（例如液化天然气（LNG））的转变已经到位。未来将是朝着全电动容器运行的迈进。同时，造船厂和船东正在越来越多地投资于海洋混合动力系统，以提高设计和安装的灵活性，优化运营性能并最大程度地减少环境影响。从小型航天飞机到大型航空母舰的许多船只类型都可以利用杂交技术，以更高效，更清洁。

好处是明确的商业驱动力：

  • 提高了船只的性能
  • 排放减少
  • 由于燃料消耗降低而降低运营成本
  • 降低与柴油发动机有关的维护成本
  • 噪声水平降低
  • 提高电源系统的长期效率
杂交如何工作

杂交如何工作

杂交利用电源转换和网格转换器技术的形式利用交流驱动器。当发电机使用杂交能量生产时，Vacon®驱动器就位，并使用杂交负载，例如推进和起重机。

混合容器使用两个或多个电源源运行：主要发动机和发电机通常与电池或超级电容器形式的集成储能相结合。目的是首先杂交能量生产以简化主引擎优化，其次是杂交所有消耗能量以优化机器行为的机械。

海洋和海上行业认识到使用混合动力和创新推进系统的潜力。它们减少排放并改善燃油消耗，同时延长发动机维护间隔和发动机寿命。借助混合解决方案，甚至可以减少发动机的尺寸，节省投资成本和船上的空间。

在能源生产中，灵活性以“时间”的形式出现。能源存储给生成时间以最佳方式对加载条件的变化做出反应。在负载方面，加载行为不依赖于生成，并且是“时间”常数。

经过验证的反馈和设计杂种容器的设计目标表明，将多源能源解决方案用于动力容器可以将燃油消耗降低20–30％。您可以选择停止柴油发动机并在电池或较小的发电机上运行，​​或断开电池或发电机并重新启动发动机。

例如，对于拖船和支撑船等特殊船只，他们花费了很多服务时间来闲置运行并准备好响应的主要发动机，但实际上没有任何动力用于推进。借助混合解决方案，可以使用电池和较小的柴油发电机在空转，待机操作中为船只提供能量，同时进行操纵或过短距离。在开始/停止和计划的路线中运行的渡轮可以使用类似的过程。关于动态定位，可以使用电池为推进功率提供动力，直到启动额外的主发动机并加速以提供推进的长期功率为止。

推进器控制以进行精确操纵

推进器控制以进行精确操纵

在所有海洋中，您需要从推进器中获得的精确机动性，这就是Danfoss驱动器提供的，具有高扭矩功能和快速，准确的性能。

与固定速度可变螺旋螺旋桨相比，具有固定音高的Danfoss驱动器控制速度螺旋桨通常高20-30％，这些速度螺旋桨浪费了大约20％的功率。

频率控制的可变速度螺旋桨比液压可变速度螺旋桨使用的能量少50％。对特殊电机预热功能的需求消除了抗凝聚加热器。

与液压转向系统相比，电动变形的方位角推进器可提供更准确的控制和响应更快。始终使用至少两个平行电动机和驱动器。如果一个组合停止，则转向系统将继续运行。

转向装备

转向装备

通过可变速度控制，您可以实现准确的方向舵定位，从而实现精确的模拟控制系统。在带有可逆液压泵的旋转范围转向齿轮中，使用VLT®或Vacon®驱动器来改变速度和方向，从而在船只更换过程时仅通过运行来节省能量。

散装运输推进的混合效率

混合柴油电气推进改造已为这家干货物散装业务迅速获得了回报。

阅读案例研究

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The VLT® AutomationDrive FC301 / FC302 is designed for variable speed control of all asynchronous motors and permanent magnet motors. It comes in a standard version (FC301) and an advanced high dynamic version (FC302) with additional functionalities.

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Designed for a broad range of demanding applications, focusing on higher power sizes and system drives.

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Enables system integrators, machine builders and OEMs to design and build efficient industrial drives systems. Active Front-end (NXA), Non-regenerative Front-end (NXN), Brake Chopper (NXB) and Inverter (NXI) configurations are available. 

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VACON® NXP DCGuard™ delivers reliable short-circuit protection of DC grids for full selectivity between DC grids, and ensures fast disconnection in the event of a fault.

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Maximizes the energy yield in hybrid solutions and helps improve performance by bringing energy support close to the consumption.

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案例故事

CROATIA: Two fully-electric, solar-powered vessels powered by Danfoss drives ensure silent, sustainable tours through the waterways of the spectacular Krka National Park in Croatia

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A Danfoss medium-voltage drive solution boosts an inboard dredge pump and increases energy efficiency with a small footprint, minimum weight and low volume - while being robust enough to withstand the harsh marine environment.

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Leading Korean shipbuilders enhance their vessel performance with assistance from Danfoss for optimized operation, increased efficiency, improved quality, and greater customer satisfaction. Danfoss delivers innovative marine solutions introducing new standards for energy efficiency, expanding opportunities for the shipbuilding industry.

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Denmark’s shortest ferry route is now a pioneer of battery power.

","StartDate":null,"EndDate":null,"Location":null,"EventTypes":null,"HasErrors":false,"HasWarnings":false,"Errors":[],"Warnings":[]},{"Id":"https://danfoss-webex-umbraco-prodgreen.azurewebsites.net/en/service-and-support/case-stories/dds/38-fuel-savings-and-emission-reductions-for-cmal-ferries/","FormattedStartDate":null,"FormattedEndDate":null,"Link":{"NewWindow":false,"Url":"/en/service-and-support/case-stories/dds/38-fuel-savings-and-emission-reductions-for-cmal-ferries/"},"IsExternalLink":false,"Title":"38% fuel savings and emission reductions for CMAL ferries","Image":"/media/3237/marine_cs_cmal_vessel_1120x747.jpg","ImageAltText":"Caledonian Maritime Assets Limited (CMAL) ","Description":"

CMAL ferries use 38% less fuel than conventional vessels and emissions are reduced by a similar amount.

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The Telstar saves 20% on operating costs compared to traditional tugboats.

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