Invention Grant
- Patent Title: System, method and device for reflected wave cancellation
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Application No.: US16692222Application Date: 2019-11-22
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Publication No.: US11114972B2Publication Date: 2021-09-07
- Inventor: Hui Li , Yu Zhang , Yanjun Shi
- Applicant: The Florida State University Research Foundation, Inc.
- Applicant Address: US FL Tallahassee
- Assignee: The Florida State University Research Foundation, Inc.
- Current Assignee: The Florida State University Research Foundation, Inc.
- Current Assignee Address: US FL Tallahassee
- Agency: Meunier Carlin & Curfman LLC
- Main IPC: H02P29/024
- IPC: H02P29/024 ; H02M1/32 ; H02M7/5387 ; H02P27/08

Abstract:
An active reflected wave canceller (ARWC, or RWC) can attached to each phase at the output of a motor drive (i.e., inverter). The reflected wave canceller is generally comprised of a pulse generator and a power inductor. The power inductor is used to by-pass the load current, so it doesn't flow through the pulse generator. The pulse generator injects an accurately controlled nanoseconds narrow-width pulse into the system. The injected narrow pulse breaks the rising and falling edge of the inverter output voltage into two steps, which generates two traveling waves along the cable that cancel each other at the motor terminals.
Public/Granted literature
- US20200266750A1 SYSTEM, METHOD AND DEVICE FOR REFLECTED WAVE CANCELLATION Public/Granted day:2020-08-20
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