Untitled Document
Untitled Document
You may need to enable or update / install Adobe Flash Player Plug-in to display JPE e-Book in your device properly. If you use Google Chrome, please find information here
> Archives > Current Issues
JPE, Vol. 18, No. 3, May 2018
EMI Noise Reduction with New Active Zero State PWM for Integrated Dynamic Brake Systems
Jae-Hyuk Baik, Sang-Won Yun, Dong-Sik Kim, Chun-Ki Kwon, and Ji-Yoon Yoo
Area Other Applications
Abstract Based on the application of an integrated dynamic brake (IDB) system that uses a PWM inverter fed-AC motor drive to operate the piston, a new active zero state PWM (AZSPWM) is proposed to improve the stability and reliability of the IDB system by suppressing the conducted electro-magnetic interference (EMI) noise under a wide range of load torque. The new AZSPWM reduces common-mode voltage (CMV) by one-third when compared to that of the conventional space vector PWM (CSVPWM). Although this method slightly increases the output current ripple by reducing the CMV, like the CSVPWM, it can be used within the full range of the load torque. Further, unlike other reduced common-mode voltage (RCMV) PWMs, it does not increase the switching power loss. A theoretical analysis is presented and experiments are performed to demonstrate the effectiveness of this method.
Keyword Active zero state PWM (AZSPWM),Common-mode current (CMC),Common-mode voltage (CMV),Electromagnetic interference (EMI),Integrated dynamic brake (IDB),Reduced common-mode voltage PWM (RCMV-PWM)
Untitled Document