Abstract
This paper proposes a new strategy for balancing the Capacitor Voltages (CVs) for Modular Multilevel Converters (MMCs). The balancing is one of the main challenges in MMC applications and it is usually solved by adopting a global arm control approach. For performing such an approach, a sorted list of the SubModules (SMs) according to their capacitor voltages is required. A common way to accomplish this task is to implement a sorting algorithm in the same controller used for the modulation technique. However, the execution time and the computational efforts of these kinds of algorithms increase very rapidly when the number of SMs grows. A novel idea is presented in this paper by using a mapping strategy that directly stores in a ranked list the SMs according to the measured CVs. Avoiding the use of sorting algorithms leads to a considerable reduction of the execution time as well as the computational efforts.
| Original language | English |
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| Title of host publication | Proceedings of 2016 IEEE Energy Conversion Congress and Exposition (ECCE) |
| Publisher | IEEE Press |
| Publication date | 2016 |
| ISBN (Electronic) | 978-1-5090-0737-0 |
| DOIs | |
| Publication status | Published - 2016 |
| Event | 8th Annual IEEE Energy Conversion Congress & Exposition: ECCE 2016 - Milwaukee, WI, United States Duration: 18 Sept 2016 → 22 Sept 2016 http://www.ieee-ecce.org/ |
Conference
| Conference | 8th Annual IEEE Energy Conversion Congress & Exposition |
|---|---|
| Country/Territory | United States |
| City | Milwaukee, WI |
| Period | 18/09/2016 → 22/09/2016 |
| Sponsor | IEEE, IEEE Industry Applications Society (IAS), IEEE Power Electronics and Industry Applications Societies (PELS) |
| Internet address |
Keywords
- Capacitor Voltage Balancing (CVB)
- Modular Multilevel Converters
- Converter Control
- Field Programmable Gate Array (FPGA)