Hybrid Graphical Filter Design for Reflected Wave Phenomenon in Long-Cable-Fed Motor Drives
- Resource Type
- Conference
- Authors
- Hijikata, Masayuki; Choksi, Kushan; Wu, Yuxuan; Singh, Deepi; Luo, Fang
- Source
- 2023 IEEE Energy Conversion Congress and Exposition (ECCE) Energy Conversion Congress and Exposition (ECCE), 2023 IEEE. :4911-4917 Oct, 2023
- Subject
- Components, Circuits, Devices and Systems
Power, Energy and Industry Applications
Transportation
Matched filters
Motor drives
Inductance
Transfer functions
RLC circuits
Voltage
Pulse width modulation
RWP
reflected wave
voltage overshoot
over-voltages
PWM signals
Smith chart
motor drive
damping filter
dV/dt filter
- Language
- ISSN
- 2329-3748
A hybrid Smith chart-based dV/dt filter design method is presented to mitigate voltage reflections in long-cable-fed motor drives. This method overcomes the challenge of applying PWM signals (or non-singular frequency signals) onto a Smith chart and enables its impedance-matching philosophy without involving complex transfer functions. The approach starts with 1st-order damping filters to ensure the accuracy of the proposed method compared to the conventional transfer function approach. It then extends to the widely adopted 2nd-order RLC dV/dt filter topology to derive the optimum filter coefficient values. Additionally, the reconfiguration circuit technique is presented to perform filter and load parasitic analyses, providing new insights into filter topologies.