SBIR Phase I: Compact High efficiency Multilevel Motor Drive

SBIR 第一阶段：紧凑型高效多级电机驱动

• 批准号: 1519745
• 负责人: David Leach
• 金额: $ 15万
• 依托单位: LCDrives Corp.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-07-01 至 2016-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1519745&HistoricalAwards=false
• 关键词: SBIR; Phase; Compact; efficiency; Multilevel

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) Phase I project will be in enabling a new class of smaller, more efficient, and cheaper motor drives to be built. Since the motors use 43% - 46% of the world's electricity, any improvement in efficiency has the potential to have one of the greatest impacts on overall electrical energy efficiency due to the shear amount of power this application uses. Motors using this technology will be variable speed enabling energy saving opportunities in many applications. A decade ago, there was a push for integrated drive and motor products, but this failed, at least in all but the smallest motors. The primary reasons were the drive was more expensive and often larger than the motor itself in high power applications. This created a situation where it did not make technical or commercial sense to integrate the drive and the motor. Since that point the cost and size of the drives has reduced significantly, but the opportunity for widespread integration cannot be realized until significant additional size and cost reduction is achieved. This proposal will show a path that this integration works for many applications in the 40-1000kW size range. The intellectual merit of this project includes a new approach to multilevel motor drives. This multilevel technology has not found commercial applications in lower power, lower voltage (1000V) applications, with traditional two level inverters dominating the market. This is driven by the abundance of established designs as well as the simplification and robustness of control. As control and semiconductor size and costs continue to reduce, the size and cost of these devices are dominated by filters and thermally driven packaging. With the advances in low size and cost digital control it now becomes possible to implement multilevel technologies at lower voltage and power levels. This implementation in a regenerative configuration will dramatically reduce the filter requirements as well as improve efficiency in both the drive and the motor. The efficiency improvement in conjunction with distributing the switch heat more widely will allow smaller more compact thermal solutions. Therefore, this approach will dramatically reduce the size and cost of the largest and most costly items at the expense of increasing the size and cost of the smallest and lowest cost items. This program will develop methodologies and designs that can achieve power densities that are 5-10 times higher than commercially available.

该小型企业创新研究 (SBIR) 第一阶段项目的更广泛影响/商业潜力将在于打造新型更小、更高效、更便宜的电机驱动器。由于电机使用了全球 43% - 46% 的电力，因此，由于该应用使用的功率剪切量，任何效率的提高都可能对整体电能效率产生最大的影响之一。使用该技术的电机将是可变速的，从而在许多应用中实现节能机会。十年前，人们曾推动集成驱动器和电机产品，但失败了，至少除了最小的电机之外的所有产品都是如此。主要原因是在高功率应用中驱动器更昂贵并且通常比电机本身更大。这就造成了将驱动器和电机集成起来没有技术或商业意义的情况。从那时起，驱动器的成本和尺寸已显着降低，但只有在尺寸和成本显着降低之前，才能实现广泛集成的机会。该提案将展示这种集成适用于 40-1000kW 尺寸范围内的许多应用的路径。该项目的智力优势包括一种多级电机驱动的新方法。 这种多电平技术尚未在较低功率、较低电压（1000V）应用中找到商业应用，传统的两电平逆变器在市场上占据主导地位。这是由丰富的既定设计以及控制的简化和稳健性推动的。随着控制和半导体尺寸和成本不断减小，这些器件的尺寸和成本主要由滤波器和热驱动封装决定。 随着小尺寸和成本数字控制的进步，现在可以在较低的电压和功率水平下实施多级技术。这种再生配置的实施将大大降低过滤器的要求，并提高驱动器和电机的效率。效率的提高以及更广泛地分配开关热量将允许更小、更紧凑的热解决方案。因此，这种方法将显着减小最大和最昂贵的物品的尺寸和成本，但代价是增加最小和成本最低的物品的尺寸和成本。 该计划将开发可实现比商用功率密度高 5-10 倍的功率密度的方法和设计。