Modulation Methods for Neutral-Point-Clamped Wind Power Converter Achieving Loss and Thermal Redistribution Under Low-Voltage Ride-Through

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

117 Citationer (Scopus)
2249 Downloads (Pure)

Abstrakt

The three-level neutral-point (NP)-clamped (3L-NPC) converter is a promising multilevel topology in the application of megawatt wind power generation systems. However, the growing requirements by grid codes may impose high stress and even give reliability problem to this converter topology. This paper investigates the loss and thermal performances of a 10-MW 3L-NPC wind power inverter undergoing low-voltage ride-through (LVRT) operation. A series of new space vector modulation methods is then proposed to relocate the thermal loading among the power switching devices. It is concluded that, with the proposed modulation methods, the thermal distribution in the 3L-NPC wind power inverter undergoing LVRT becomes more equal, and the junction temperature of the most stressed devices can be also relieved. Also, the control ability of the dc-bus NP potential, which is one of the crucial considerations for the 3L-NPC converter, is even more improved by the proposed modulation methods.
OriginalsprogEngelsk
TidsskriftI E E E Transactions on Industrial Electronics
Vol/bind61
Udgave nummer2
Sider (fra-til)835-845
Antal sider11
ISSN0278-0046
DOI
StatusUdgivet - feb. 2014

Emneord

  • Low-voltage ride-through (LVRT)
  • modulation
  • thermal
  • three-level neutral-point-clamped (3L-NPC)
  • wind power generation

Fingeraftryk Dyk ned i forskningsemnerne om 'Modulation Methods for Neutral-Point-Clamped Wind Power Converter Achieving Loss and Thermal Redistribution Under Low-Voltage Ride-Through'. Sammen danner de et unikt fingeraftryk.

Citationsformater