Abstract
Estimation-based indirect dc-voltage control in MMCs interacts with circulating current control methods. This paper proposes an estimation-based indirect dc-voltage control method for MMC-HVDC systems and analyzes its performance compared to alternative estimations. The interactions between estimation-based indirect dc-voltage control and circulating current control methods, active/reactive power regulation are also investigated. The proposed method delivers similar performance to measurement-based direct dc-voltage control, regardless of the circulating current control method. Steady-state and transient performance is demonstrated using a benchmark MMC-HVDC transmission system, implemented in a real-time digital simulator. The results verify the theoretical evaluations and illustrate the operation and performance of the proposed indirect dc-voltage control method.
| Original language | English |
|---|---|
| Pages (from-to) | 829-838 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Power Systems |
| Volume | 33 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2018 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2017 IEEE.
ASJC Scopus Subject Areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Keywords
- Dc-voltage control
- Dc-voltage estimation
- High voltage direct current
- Modular multilevel converter
- Real-time digital simulator