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首页> 外文期刊>Journal of Scientific & Industrial Research >New method of Electromagnetic Interferences Reduction in AC-AC power converter fed Induction motor drive
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New method of Electromagnetic Interferences Reduction in AC-AC power converter fed Induction motor drive

机译：交流感应功率驱动交流-交流电源转换器中减少电磁干扰的新方法

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摘要

The aim of this paper is to study the effect of EMI in Switched mode PWM Inverter fed AC drive. This Switched mode PWM Inverter has an inherent noise source. This noise is mitigated by a New Active Common Mode Electro Magnetic Interference Filter (ACEF) which is proposed for switched mode power supply applications. The proposed filter is based on current sensing and a compensation circuit which utilizes fast acting transistor amplifier for current compensation. The amplifier is biased with an isolated low voltage DC power supply. Hence, it is possible to construct an active filter independent of the source voltage of the equipment. Thus, this filter can be used in any application regardless of working voltage. Results of Simulations and experiments indicate the effectiveness of the proposed Active Common mode EMI filter. It is also very effective in suppressing the noise due to EMI.
机译：本文的目的是研究EMI在开关模式PWM逆变器交流驱动器中的影响。该开关模式PWM逆变器具有固有的噪声源。新型有源共模电磁干扰滤波器（ACEF）可以缓解这种噪声，该滤波器被提议用于开关模式电源应用。提出的滤波器基于电流检测和补偿电路，该补偿电路利用快速作用的晶体管放大器进行电流补偿。放大器通过隔离的低压直流电源偏置。因此，有可能构造与设备的源电压无关的有源滤波器。因此，该滤波器可以在任何应用中使用，而与工作电压无关。仿真和实验结果表明了所提出的有源共模EMI滤波器的有效性。在抑制EMI引起的噪声方面也非常有效。

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