GOALI: Fully Superconducting Electrical Machines for Renewable Energy

本项目提出了一种基于静止超导磁场线圈和超导双电枢转子的新型超导电机的开发。这种配置与低热泄漏结构和减少电枢中交流损耗的方法相结合，使完全超导机器能够基于发展良好、成本效益高的当前可用的超导材料实现最高的单位质量功率。智能优点：拟议的研究具有变革性：它提出了(I)具有前所未有的能量密度的低速、高扭矩电机的新设计，(Ii)磁场和电枢都是超导的拓扑结构，(Iii)能够开发无铁铁心的旋转机械的线圈配置(允许场密度增加几倍)，(Iv)减少电机电枢处的热泄漏和交流损耗的方法，使得能够使用可靠、廉价、具有合理制冷要求的低温超导体。这将使下一代电机的设计具有无与伦比的功率密度、失超安全性、可靠性和电气性能。更广泛的影响：(I)高扭矩密度电机有可能成为下一代发电系统，适用于对最佳功率质量比至关重要、需要轻便、可靠、高效的电机的应用，如风力涡轮机、船舶推进电机和陆地车辆推进电机。(Ii)对最新技术的贡献：介绍了超导电机的新线圈和电机拓扑，以及设计、分析和模拟的新方法。

This project proposes the development of a new type of superconducting electrical machines based on a stationary superconducting field coil and a superconducting dual armature rotor. This configuration, combined with a low heat leak construction and a method for reducing AC losses in the armature enables a fully superconducting machine that can achieve the highest power per unit mass based on well developed, cost effective, currently available superconducting materials. Intellectual Merit: The proposed research is transformative: it proposes (i) A novel design for low speed, high torque electrical machines with unprecedented energy density, (ii) A topology where both field and armature are superconducting, (iii) a coil configuration that enables development of rotating machinery with iron-free core (allowing a several fold increase in field density), (iv) a method of reducing heat leak and AC losses in the armature of the machine, enabling the use of reliable, inexpensive, low temperature superconductors with reasonable refrigeration requirements. This will enable the design of next-generation electrical machinery with unparalleled power density, quench safety, reliability, and electrical performance. Broader Impacts: (i) High torque density electrical machines have the potential to become the next generation power generation systems for applications where optimal power to mass ratio is critical, and lightweight, reliable, efficient electrical machinery is required, such as wind turbine generators, marine propulsion motors, and land vehicle propulsion motors. (ii) Contribution to the state of the art: new coil and machine topologies, and new approaches for design, analysis and simulation of superconducting machines are presented.