1. Detailed and Averaged Models for a 401-Level MMC–HVDC System.
- Author
-
Peralta, Jaime, Saad, Hani, Dennetiere, Sébastien, Mahseredjian, Jean, and Nguefeu, Samuel
- Subjects
VOLTAGE-frequency converters ,HIGH-voltage direct current converters ,MATHEMATICAL models ,ELECTRIC power systems ,ELECTROMAGNETISM ,ELECTRIC potential ,ENERGY conversion - Abstract
Voltage-source-converter (VSC) technologies present a bright opportunity in a variety of fields within the power system industry. New modular multilevel converters (MMCs) are expected to supersede two- and three-level VSC-based technologies for HVDC applications due to their recognized advantages in terms of scalability, performance, and efficiency. The computational burden introduced by detailed modeling of MMC-HVDC systems in electromagnetic-transients (EMT)-type programs complicates the study of transients especially when these systems are integrated into a large network. This paper presents a novel average-value model (AVM) for efficient and accurate representation of a detailed MMC–HVDC system. It also develops a detailed 401-level MMC-HVDC model for validating the AVM and studies the performance of both models when integrated into a large 400-kV transmission system in Europe. The results show that the AVM is significantly more efficient while maintaining its accuracy for the dynamic response of the overall system. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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