Design and lifetime analysis of a DSCC-MMC STATCOM

Farias, João Victor Matos; Cupertino, Allan Fagner; Ferreira, Victor; Seleme, Seleme I.; Pereira, Heverton A.; Teodorescu, Remus

doi:10.1109/cobep.2017.8257312

Cited by 8 publications

(3 citation statements)

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“…The complete control strategy used is based on reference [9], which employs the following controls: grid current control, circulating current control and individual balancing control. The grid current control is responsible for controlling the reactive power injected by the converter into the grid.…”

Section: A Mmc-statcom Designmentioning

confidence: 99%

“…In this approach a well detailed design is conducted, aiming at reducing the wear-out failure probability of power devices. Some research efforts focused on the estimation of the MMC lifetime are identified in the literature [6]- [9]. Reference [6] presents a lifetime estimation procedure for MMC power modules based on physics of failure (PoF) models and mission profile, considering a 18 MW HVDC station.…”

Section: Introductionmentioning

confidence: 99%

“…In [8], the most commonly-used analytical lifetime models of insulated-gate bipolar transistor (IGBT) devices are compared, considering a 30 MW MMC-HVDC application with 6.5 kV IGBT modules. Reference [9] addresses the estimation of lifetime that compares two IGBT solutions with differently rated current levels. The results indicate a lower temperature in devices with higher current capability, increasing the converter lifetime.…”

Section: Introductionmentioning

confidence: 99%

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Reliability-Oriented Design of Modular Multilevel Converters for Medium-Voltage STATCOM

Farias

Cupertino

Ferreira

et al. 2020

IEEE Trans. Ind. Electron.

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Modular Multilevel Converters (MMC) are complex systems, composed of many elements, and exposed to critical load demands in some cases. Thereby, a detailed design of its components is of preeminent importance to achieve a high system-level reliability. However, the high number of devices challenges the trade-off between cost and reliability. This work, introduces a reliability-oriented design methodology, based on the cost to achieve a predefined unreliability level (Ux). A flowchart presents the main steps of the process, including the mission profile definition, selection of power devices, thermal modeling, reliability modeling and the reliability-oriented selection. To evaluate the proposed methodology, a case study considering 17 MVA/13.8kV MMC-STATCOM with a real mission profile data is conducted. A Ux − cost map is introduced to compare various design solutions, based on power devices of different voltage classes and current capabilities.

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Section: A Mmc-statcom Designmentioning

confidence: 99%