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X-Type Current Source Converters
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DOI：10.1109/TPEL.2021.3082032.png)
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摘要
En 中文
In this article, a novel topology generalization of a current source converter (CSC) that allows controlling of multiple single-phase ac converters independently sharing the same dc-bus, with the advantage of having a reduced number of conducting switches and a lower dc-bus current, is presented. A conventional n-output/port single-phase CSC that uses the same dc-bus needs to have n H-bridge converters connected in series, which means that it always has 2n conducting switches. The new topology allows generating any n ac output currents always having only (n + 1) conducting switches in a switching period. This represents (1 - 1/n). 50% less conduction losses when compared with the equivalent conventional multiport single-phase CSC. A scalar pulsewidth modulation to control the converters with switching optimization and its generalization is also presented. Details of topology, control strategy, and modulation are presented. Simulation and experimental results are provided to validate the theoretical approach.
Keyword:
Boost inverter
buck rectifier
conduction losses reduction
current source
reduced active switch count
scalar PWM
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期刊
IF:
6.5
论文数:
1.7W
被引数:
8.3W
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