Research and Development of the Utility Scale, Tocardo T4 Tidal Turbine

实用规模Tocardo T4潮汐发电机的研发

• 批准号: 2879087
• 金额: --
• 依托单位: University of Edinburgh
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2879087
• 关键词: Research; Development; Utility; Scale; Tocardo

QED Naval and Tocardo turbines have successfully deployed a small scale tidal energy device. Their Gen 01Subhub device has three generators and is designed for community scale projects (150 kW - 300 kW total), butthe ambition is to develop industrial scale (300 kW - 1.25 MW total), and utility scale (2 MW - 4 MW total).The utility scale device is expected to have multiple generators, each with a rated power of approximately 1 MW.This project concerns the development of this generator.Tocardo's experience is in Permanent Magnet Synchronous Machines (PMSMs), which matches the wideralignment of the wind and tidal industry. These machines are typically directly driven, and as such need todevelop high torques (so-called torque engines). Given the torque of a PMSM is linked to the current in statorwindings, thermal limits are usually the cause of torque limits in an electrical machine. As such, a machine thatcould deliver greater thermal performance would be able to develop a higher maximum torque, which for thisapplication may be able to improve energy capture before field weakening at higher flow rates.As such Tocardo has done preliminary design work for a so-called "open-core nacelle" topology, see Fig. 1. Thiswould replace the solid rotor shaft with a pipe, allowing sea water to flow freely through the turbine. This wouldcreate an extra surface for cooling, improving the thermal performance without the need for flooding the nacelle,or the installation of active cooling of the components. Both of the latter present operational challenges, whichin the tidal sector is something to be avoided.As such, the aim of this project is to assess the design of the electrical machine within such a topology, and toassess the effectiveness of the open-core nacelle topology through the use of thermal modelling. The aim is thatat the conclusion of the project a design for a MW scale tidal turbine will have been created. Depending on theoutcomes of the modelling this design may feature the open-core nacelle concept or may be a more conventionalPMSM optimised for the tidal environment. Finally, over the course of the project design tools and processeswill be assessed with the aim of improving Tocardo's design capabilities.

QED海军和托卡多涡轮机已经成功地部署了一种小型潮汐能装置。他们的01代分站装置有三台发电机，专为社区规模的项目(总计150千瓦-300千瓦)而设计，但其目标是发展工业规模(总计300 kW-1.25兆瓦)和实用规模(总计2兆瓦-4兆瓦)。实用规模装置预计将有多台发电机，每台额定功率约为1兆瓦。该项目涉及该发电机的开发。托卡多的经验是永磁同步电机(PMSM)，与风能和潮汐行业的更广泛走向相匹配。这些机器通常是直接驱动的，因此需要开发高扭矩(所谓的扭矩发动机)。由于永磁同步电机的扭矩与定子绕组中的电流有关，因此电机中的热限制通常是扭矩限制的原因。因此，能够提供更大热性能的机器将能够开发出更高的最大扭矩，对于这种应用，这可能能够在较高流速下的磁场减弱之前改善能量捕获。因此，托卡多已经为所谓的“开芯吊舱”拓扑结构做了初步设计工作，参见图1。这将用管道取代实心转子轴，允许海水自由通过涡轮机。这将创造一个额外的冷却表面，改善热性能，而不需要淹没机舱，或安装组件的主动冷却。后两种情况都带来了操作上的挑战，在潮汐领域应该避免这种挑战。因此，本项目的目的是评估这种拓扑结构中电机的设计，并通过使用热模型来评估开芯吊舱拓扑结构的有效性。其目的是在项目结束时完成兆瓦级潮汐涡轮机的设计。根据建模的结果，该设计可能采用开芯吊舱的概念，也可能是针对潮汐环境优化的更传统的永磁同步电机。最后，在项目过程中，将对设计工具和流程进行评估，目的是提高托卡多的设计能力。