Measured Savings of DC to AC Drive Retrofit in Plastic Extrusion

Measured Savings of DC to AC Drive Retrofit in Plastic Extrusion
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塑料挤出中从直流到交流驱动改造的实测节省

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发表时间：
2008
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通讯作者：
R. A. Sfeir
R. A. Sfeir
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文献类型：
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作者：
R. A. Sfeir

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本文介绍了利用变频驱动器（VFD）控制的交流（AC）电机代替直流（DC）电机驱动塑料挤出机的潜在电能效率的改进。沿着介绍了挤压工艺的简要背景以及典型的挤压机电气驱动性能要求。电机的性能特点和控制策略的交流和直流电机。以两台由直流电机和交流电机分别驱动的类似挤出机为例，进行了详细的电气测量。分析了电能、需求和成本节约。
This paper presents the potential electrical energy efficiency improvements for utilizing alternating current (AC) motors controlled by variable frequency drives (VFD) in place of direct current (DC) motors to drive plastic extrusion machines. A brief background on the extrusion process is presented along with typical extrusion machine electrical drive performance requirements. Motor performance characteristics and control strategies are described for both AC and DC machines. A case study is presented, where detailed electrical measurements were performed on two similar extrusion machines driven by a DC motor and an AC motor respectively. Electrical energy, demand, and cost savings are analyzed.