| Autor: |
Vladimir Mitrovic, Rolando Burgos, J. Verhulst, Bo Wen, Dushan Boroyevich, M. Belkhayat, Sizhan Zhou, Yu Rong |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
2021 IEEE Applied Power Electronics Conference and Exposition (APEC). |
| DOI: |
10.1109/apec42165.2021.9487098 |
| Popis: |
Small-signal stability assessment using measured terminal impedances is getting popular in power-electronic-based power systems. This paper discusses the design of an impedance measurement unit (IMU) with a reconfigurable, modular, and scalable structure for both source and load impedance measurement. The IMU can be configured as a cascaded H-bridge converter and works as a line-to-line current injector when characterizing source impedance. For characterizing load impedance, the IMU can be connected as an interleaved converter with three H-bridges and works as a series voltage injector. The IMU power stage was built with SiC MOSFET-based power electronics building blocks (PEBBs), and a distributed control scheme and communication system was developed for the control implementation. Based on the modular design and distributed control, the unit can be easily scaled to a medium voltage high power IMU. Experimental results are shown to validate the design and control implementation. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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