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DC-Side Impedance Modeling and Stability Assessment in Grid-Forming Modular Multilevel Converters
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| Author(s) |
Mehrdad NAHALPARVARI, Mohsen ASOODAR, Staffan NORRGA, Hans-Peter NEE |
| Abstract |
Incorporation of inverter-based resources is progressively increasing in modern power systems. The absence of inherent physical inertia in converter-based systems has resulted in a decrease in the total inertia of the grid. Grid-forming control of voltage source converters emulates the workings of a conventional synchronous generator through frequency droop control, allowing the converter to provide inertial support while contributing to the support of grid voltage. This paper presents a dc-side impedance model of a grid-forming modular multilevel converter. A control interaction between a grid-forming and a grid-following converter in a back-to-back structure is investigated and a stabilizing compensator is proposed. |
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| Filename: | 0253-epe2023-full-13145875.pdf |
| Filesize: | 1.566 MB |
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| Type |
Members Only |
| Date |
Last modified 2023-09-24 by System |
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