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Modeling and Frequency Analysis of a Dual H-bridge Current Flow Controller in Meshed HVDC systems
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| Author(s) |
Wei LIU |
| Abstract |
This paper investigates the modeling and operation of dual H-bridge current flow controllers (CFCs) in meshed high-voltage direct-current (HVDC) systems. Two operating modes of the CFC device, namely the `buck mode' and the `boost mode', are defined and analyzed. Small-signal models of the dual H-bridge CFC are derived in the s-domain for each operating mode. A frequency sweep procedure is carried out using PSIM to obtain frequency domain representations of the CFC to verify the validity and accuracy of the small-signal models. The dynamic performance of the dual H-bridge CFC is verified through time-domain simulations conducted in PSCAD/EMTDC. |
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| Filename: | 0175-epe2019-full-23010912.pdf |
| Filesize: | 387.7 KB |
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| Type |
Members Only |
| Date |
Last modified 2020-08-14 by System |
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