Post-fault Operation of Onboard Integrated battery Charger via a Nine-Phase EV-Drive Train

Mahmoud S. Abdel-Majeed, Hisham Magdy Eldeeb, Mohamed Yehia Metwly, Ayman Samy Abdel-Khalik, Mostafa Hamad, Ragi Ali Hamdy, Shehab Ahmed

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents the operation of onboard integrated battery chargers tied to a nine-phase EV-drive train, shedding light on the charging performance during the post-fault operation, when one or more faulty inverter legs are disconnected. The objective in that case is to ensure balanced grid currents, while maintaining minimum machine losses at zero average torque production. The proposed concept requires a minimalistic change from a control structure perspective to switch between the pre and post-fault cases. Limitations and fault cases are discussed and corroborated with experimental tests on a 1.5 kW prototype. The derived concept is parameter independent and applicable to nine-phase drives, irrespective of the type of rotor used.
Original languageEnglish (US)
Pages (from-to)1-1
Number of pages1
JournalIEEE Transactions on Industrial Electronics
DOIs
StatePublished - 2020

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