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首页> 外文会议>IEEE Energy Conversion Congress and Exposition >Efficiency improvement of permanent-split capacitor motors in HVAC applications using a two-phase asymmetrical inverter
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Efficiency improvement of permanent-split capacitor motors in HVAC applications using a two-phase asymmetrical inverter

机译：使用双相不对称逆变器效率改进HVAC应用中的永久性电容器电动机

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摘要

Permanent Split Capacitor motors are widely used in HVAC fan and pump applications less than 5 hp. These motors operate at efficiencies from 20% to 65%. These efficiencies can be increased if the motor is operated from a variable-frequency, variable voltage supply. However, application of power electronic controllers to realize the benefits of variable speed operation of these motors has generally been impeded due to a perceived lack of cost advantage. This paper presents a novel power converter based variable speed drive topology for the PSC motor, with appropriate dynamic efficiency control and a detailed evaluation of efficiency improvements. Simulation results that compare prior art in line-operated efficiency, and drive-operated efficiency are presented, illustrating that the proposed approach can result in efficiencies from 65% to 75%. The paper presenta hardware demonstrations and simuation results.
机译：永久分离电容电机广泛用​​于HVAC风扇和泵应用小于5 HP。这些电机以20％至65％的效率运行。如果电动机由可变频率的可变电压供应操作，则可以增加这些效率。然而，由于感知缺乏成本优势，通常阻碍了电力电子控制器实现这些电动机的变速操作的益处。本文提出了一种基于PSC电机的新型电力转换器的可变速度驱动拓扑，具有适当的动态效率控制和效率改进的详细评估。展示现有技术以线路操作效率和驱动操作效率的仿真结果表明，所提出的方法可能导致效率为65％至75％。纸张存在硬件演示和模拟结果。

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