Abstract
This paper proposes an adaptive model of modular multilevel converter (MMC) for electromagnetic transient (EMT) simulations. The model is applicable to MMCs with arbitrary numbers of half-bridge and full-bridge submodules. The proposed design includes average value model, arm equivalent model, and detailed equivalent model. It allows smoothly transitioning from one model to another during time-domain simulations depending on the desired accuracy and execution time constraints. Modifications required in conventional MMC models to achieve smooth transitions are presented in the paper. Time-domain initialization methods are developed for each constituting model, including initialization of the appropriate control system blocks. Validity and effectiveness of the proposed adaptive model is demonstrated using EMT simulations of 401-level MMC-HVDC system.
Original language | English |
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Article number | 9090314 |
Pages (from-to) | 803-813 |
Number of pages | 11 |
Journal | IEEE Transactions on Power Delivery |
Volume | 36 |
Issue number | 2 |
DOIs | |
Publication status | Published - Apr 2021 |
Keywords
- Adaptive model
- Arm equivalent
- Average value model
- Detailed equivalent
- High-Voltage Direct Current
- Model switching
- Modular multilevel converter
- Simulation
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering