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Cell-Level Power Supply for High-Voltage Modular Multilevel Converters
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| Author(s) |
Andrei BLINOV |
| Abstract |
Focus is on the design and development of an auxiliary power supply converter for HVDC and FACTS applications, utilising integrated gate-commutated thyristors. Due to relatively high requirements for gate drive power and operating voltage of 2.8~kV, special measures have to be considered when designing such systems. The tapped-inductor buck converter topology was chosen as the first non-isolated conversion stage to perform step-down and regulation functions. The main focus of this study is on the design and operation of autonomous high-voltage switch with increased operating frequency that consists of eight MOSFETs connected in series. Various converter design constrains associated with inductor design and start-up sequences are analysed as well. The results are verified with a 150~W prototype converter. |
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| Filename: | 0643-epe2017-full-10524927.pdf |
| Filesize: | 2.627 MB |
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| Type |
Members Only |
| Date |
Last modified 2018-04-17 by System |
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