感应电机驱动的效率问题:建模和损耗最小化技术

2015 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) Pub Date : 2015-03-26 DOI:10.1109/WEMDCD.2015.7194526

M. C. Di Piazza, M. Pucci

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引用次数: 4

摘要

本文提出了一种逆变式感应电机驱动的效率分析方法，该方法结合了逆变器的D-PWM开关损耗最小化和电机的ELMT开关损耗最小化。目标是评估所选PWM和ELMT策略对驱动器总损耗的贡献。为此，在Matlab-Simulink环境中建立并实现了驱动系统的完整动态模型，使其能够在数值模拟中评估效率，并适当地分离每个损失项。实验结果表明，在低负载转矩下，D-PWM和ELMT的集成使用可以将感应电机额定功率的总功率损耗降低到6%。相应的，驱动效率在低负载下可提高约30%，在高负载下可提高约5%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Efficiency issues in induction motor drives: Modelling and losses minimization techniques

This paper presents an efficiency analysis on an inverter-fed induction motor drive integrating both switching losses minimization by D-PWM for the inverter and an ELMT for the motor. The target is the evaluation of the contribution of both the chosen PWM and ELMT strategies on the total losses of the drive. To this aim, a complete dynamic model of the drive system has been developed and implemented in Matlab-Simulink environment permitting efficiency to be evaluated in numerical simulation, properly suitably separating each loss term. Experimental results show that the integrated use of D-PWM and ELMT permits a reduction of the overall power loss up to 6% of the induction machine rated power at low load torques. Correspondingly, the drive efficiency can be increased up to about 30% at low loads and up to about 5% at high loads.

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2015 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)

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