Open AccessLow‐cost post power switch open‐circuit fault operation approach for an IPMSM drive
Author(s) -
Li Wei,
Xuan Shenxiexian,
Gao Qiang,
Cai Xu
Publication year - 2018
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.0022
Subject(s) - control reconfiguration , fault (geology) , computer science , power (physics) , inverter , electromagnetic coil , control theory (sociology) , voltage , engineering , electrical engineering , control (management) , embedded system , physics , quantum mechanics , artificial intelligence , seismology , geology
This study proposes an approach for the fault‐tolerant control of an interior permanent magnet synchronous motor (IPMSM) drive when a power switch open‐circuit fault occurs without addition of any extra hardware or reconfiguration to the inverter. With this approach, the IPMSM's operation effectively alternates between the three‐phase mode and the two‐phase mode. Thus, the electric power is evenly distributed between three‐phase windings as much as possible, and the remaining healthy power devices are all utilised. The post‐fault drive performance is analysed. A simulation model has been built to verify the proposed principle. Finally, the approach has been implemented on an IPMSM test rig. Both the simulation and experimental results confirm the feasibility of the method.