Double Half-Bridge Submodule-Based Modular Multilevel Converters With Reduced Voltage Sensors
نویسندگان
چکیده
The half-bridge (HB) submodule (SM) based MMC requires a large number of sensors to measure capacitor voltages. In this letter, double (DHB) SM-based is proposed, where each SM consists two HBs. But only one voltage sensor equipped in DHB-SM for the estimation, which connected between positive poles capacitors DHB-SM. A estimation method also can estimate voltages proposed with half comparison HB-SM-based MMCs. DHB-SM-based three-phase simulated power systems computer aided design/electromagnetic transients including DC (PSCAD/EMTDC) and single-phase prototype built laboratory. Both simulation experimental results confirm effectiveness method.
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ژورنال
عنوان ژورنال: IEEE Transactions on Power Electronics
سال: 2021
ISSN: ['1941-0107', '0885-8993']
DOI: https://doi.org/10.1109/tpel.2020.3026394