SBIR Phase I: Novel Low-Cost Electric Motors for Variable Speed Applications

这项SBIR第一阶段研究计划将分析、开发和展示一种采用并联磁路(PMC)技术的新型、优化、高功率密度和高效电机技术，能够高速运行。PMC技术是一项突破性的磁力控制技术，适用于任何电磁设备。不同？传统？电磁电机和执行器使用受最强大的单个磁体元件的力限制的串联磁路，PMC将来自多个永久磁铁和磁场线圈的磁通移动到连贯和附加的几何结构中，从而显著提高了效率和功率密度。建议的电机在很宽的运行速度范围内将具有大于90%的效率，峰值效率大于97%，以超过20000 rpm的速度运行，成本低于现有的同类永磁电机，并且在设计参数范围内运行时不需要主动液体冷却。与当前变速应用中使用的现有电机相比，这些发电机在数量和质量上都具有显著优势。它们更小的尺寸和在更宽的运行速度范围内更有效地运行的能力，以及它们的易于集成、安装和预计的可靠性，将极大地提高电动马达在商业市场的生存能力。这将大大提高电动列车的可行性，并加快采用高效和环境可持续的电动汽车。

This SBIR Phase I research proposal will analyze, develop, and demonstrate a novel, optimized, high power density and high efficiency electric motor technology capable of operating at high speeds using Parallel Magnetic Circuit (PMC) technology. PMC technology is a breakthrough magnetic force control technology that is applicable to any electromagnetic device. Unlike ?conventional? electro-magnetic motors and actuators, which use series magnetic circuits limited by the force of the most powerful single magnet element, PMC moves flux from multiple permanent magnets and field coils into a coherent and additive geometry - dramatically increasing both efficiency and power density. The proposed motor will have efficiency greater than 90 percent over a broad range of operating speeds with peak efficiency greater than 97 percent, operate at speeds in excess of 20,000 rpm, cost less than comparable existing permanent magnet motors, and require no active liquid cooling when operating within the designed parameters. These power generators have significant quantitative and qualitative advantages over the incumbent motors being used in the current variable speed applications. Their smaller size and ability to operate more efficiently over a wider range of operating speeds, as well as their ease of integration, installation, and projected reliability, would greatly increase electric motor viability in the commercial market. This would significantly increase the viability of electric drive trains and speed the adoption of efficient and environmentally sustainable electric vehicles.