Abstract
There is an increasing focus on integrating flexible dc links for bulk power routing in medium voltage distribution grids. In such applications, the ac-dc Modular Multilevel Converter (MMC) devised for medium voltage and high-power ratings can be an interesting choice. This paper highlights some less explored design trade-offs arising due to the limitation on N in relation to modulation frequency and arm inductance. Specifically, the study intends to describe the interdependent influence of each degree of freedom on several aspects such as capacitor voltage balancing, circulating currents and harmonic performance. Finally, the importance of considering interhar-monies in the performance assessment of the MMC instead of the conventional interpretation of distortion calculation is highlighted.
| Original language | English |
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| Title of host publication | 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) |
| Publisher | IEEE |
| Pages | 197-204 |
| Number of pages | 8 |
| ISBN (Electronic) | 978-89-5708-313-0 |
| ISBN (Print) | 978-1-7281-1612-9 |
| Publication status | Published - 2019 |
| Event | 10th International Conference on Power Electronics - ECCE Asia, ICPE 2019 - ECCE Asia: 10th International Conference on Power Electronics - Busan, Korea, Republic of Duration: 27 May 2019 → 30 May 2019 Conference number: 10th |
Conference
| Conference | 10th International Conference on Power Electronics - ECCE Asia, ICPE 2019 - ECCE Asia |
|---|---|
| Country/Territory | Korea, Republic of |
| City | Busan |
| Period | 27/05/19 → 30/05/19 |
Keywords
- Capacitor voltage balancing
- Circulating current
- Design steps
- Grid-connected
- Harmonic performance
- Optimal submodules