Abstract
Static Synchronous Compensators (STATCOMs) have been applied for offshore wind power plants to satisfy the grid codes under both normal operation and grid fault conditions. This paper investigates the performances of two types of Modular Multilevel Cascade Converters (MMCC) for STATCOM applications, with the special focus on asymmetrical Low-Voltage-Ride-Through (LVRT) operation under grid faults. The design of an 80 MVar / 33 kV STATCOM is first presented. The electro-thermal stress of the power modules used in each type of MMCC is analyzed with voltage balancing control under grid faults. Finally, the reactive power compensation capability of the MMCC solutions is compared under different scenarios of grid faults, with considerations of the device temperature limits.
Original language | English |
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Title of host publication | Proceedings of the 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia) |
Number of pages | 5 |
Publisher | IEEE Press |
Publication date | Jun 2017 |
Pages | 326-331 |
ISBN (Print) | 978-1-5090-5157-1 |
DOIs | |
Publication status | Published - Jun 2017 |
Event | 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia) - Kaohsiung, Taiwan, Province of China Duration: 3 Jun 2017 → 7 Jun 2017 |
Conference
Conference | 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia) |
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Country/Territory | Taiwan, Province of China |
City | Kaohsiung |
Period | 03/06/2017 → 07/06/2017 |
Keywords
- MMCC
- STATCOM
- Asymmetrical grid faults
- LVRT
- Reactive power compensation capability
- Wind power plant