新型摆式直驱高功率密度海洋波浪能磁阻发电机研究

Among all marine energy sources, marine wave energy is a follow up to the tidal energy in terms of rapid development as well as extensive utilization. Marine wave energy has wide ranging distribution and features high power density, which is around 50 times of wind energy and 200 times of solar energy. Moreover, the exploiting technology of marine wave energy is usually micro-miniatured and distributed compared to other marine renewable sources. Therefore, the utilization of marine wave energy has less influence upon the ocean ecological environment in practical development, thus make a contribution to the coastal construction and ocean sources exploitation. Since the direct drive marine wave energy plant can dispense with the transmission device relating to rotary-to-linear motion compared to the existing marine wave energy plant, the dynamic response characteristics and energy conversion efficiency can be well enhanced.. The purpose of this project is to propose and investigate a novel high power density tubular reluctance generator for direct drive marine wave energy power plant. The translator of the proposed generator consists of series of round type ferrite core which are magnetically isolated with each other, eliminating the translator yoke and improving the utilization of the magnetic circuit. It has been found that the proposed machine exhibits high power density and low moment of inertia for wave pendulum, thus substantially improve the energy capture efficiency of the generating device. Also, the proposed generator features high reliability and stability due to its rugged translator structure, being very advantageous in harsh environment such as marine wave energy power plant. This project aims to intensively investigate the basic principle, modeling methodology, operation mode and control strategy of direct drive marine wave energy tubular generator as well as the converter and controller for marine energy power plant. We intend to optimize the topology and design parameters of the machine taking into account of the specific requirements of direct drive operation condition for marine wave energy plant using various algorithms. Then the control strategy of the proposed machine, aiming to meet the requirements of direct drive marine wave energy plant will be extensively investigated, providing a firm and credible technical reference for high performance and reliable marine wave energy plant.

波浪能是继潮汐能之后发展利用速度最快的海洋能种，波浪能能流密度高（是风能的50倍，太阳能的200倍），开采技术易于小型化，对海洋生态影响小。直线直驱型波浪能发电系统省去了机械转换装置，可显著提高系统对波浪能流的动态响应能力和能量转换效率。.项目旨在提出并研究一种适用于摆式直驱波浪能发电系统的高功率密度直线磁阻发电机，该电机动子由相互没有磁联系的导磁环组成，省去了动子轭部，提高了磁路利用率，兼有功率密度高和动子质量轻的优点，应用于波浪能直驱发电系统优势明显。项目以提出的摆式直驱波浪能直线磁阻发电机为研究对象，结合波浪能直驱发电系统的特殊工况要求，拟对其基本理论、建模分析方法、稳态和动态性能计算、波浪能直驱发电运行工况及控制策略进行系统深入研究，对电机拓扑结构和电磁参数进行最优设计，寻找最佳控制策略，探索该电机应用于波浪能直驱发电系统的一般规律，为实现高性能波浪能直驱发电系统提供可靠技术保证。

项目提出并研究了一种适用于摆式直驱波浪能发电系统的高功率密度直线磁阻发电机，该电机动子由相互没有磁联系的导磁环组成，省去了动子轭部，提高了磁路利用率，兼有功率密度高和动子质量轻的优点，应用于波浪能直驱发电系统优势明显。项目以提出的摆式直驱波浪能直线磁阻发电机为研究对象，结合波浪能直驱发电系统的特殊工况要求，对其基本理论、建模分析方法、稳态和动态性能计算、波浪能直驱发电运行工况及控制策略进行了系统深入研究，对电机拓扑结构和电磁参数进行最优设计，寻找最佳控制策略，探索了该电机应用于波浪能直驱发电系统的一般规律，为实现高性能波浪能直驱发电系统提供可靠技术保证。