Design and evaluation of a hybrid passive/active ripple filter with voltage injection
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Active ripple filters can substantially attenuate power converter ripple, allowing considerable reduction in passive filter component size. Investigated here is a hybrid passive/active filter topology that achieves ripple reduction by injecting a compensating voltage ripple across a series filter element. Both ripple feedforward and feedback are employed. The design of sensor, amplifier, and injector circuitry for this application is explored. The experimental results demonstrate the feasibility and high performance of the new approach, and illustrate its potential benefits. It is demonstrated that the proposed approach is most effective in cases where it is desirable to minimize the amount of capacitance in the filter.
Date issued
2003-04Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Laboratory for Electromagnetic and Electronic SystemsJournal
IEEE Transactions on Aerospace and Electronic Systems
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Chow, A.C., and D.J. Perreault. “Design and Evaluation of a Hybrid Passive/active Ripple Filter with Voltage Injection.” IEEE Transactions on Aerospace and Electronic Systems 39, no. 2 (April 2003): 471–480. © 2003 IEEE
Version: Final published version
ISSN
0018-9251