High bandwidth zero voltage injection method for sensorless control of PMSM
MetadataShow full item record
Abstract: High frequency signal injection is widely used in PMSM sensorless control system for low speed operations. The conventional voltage injection method often needs filters to obtain particular harmonic component in order to estimate the rotor position; or it requires several voltage pulses to be injected before the position may be estimated. In this paper, a single pulse zero voltage injection method is proposed. The rotor position is directly estimated from the current ripple at half of the switching frequency. No machine parameters are needed and using of filters is avoided. This results in a fast current regulation performance. Injection of zero voltage also minimizes the inverter voltage error effects caused by the dead-time.
Showing items related by title, author, creator and subject.
Alyan Nezhadi, M.; Zare, Firuz; Hassanpour, H. (2017)© 2016 IEEE. In this paper, a method is proposed for passive grid impedance estimation using several short-term low power signal injections. Impedance estimation is used in many applications such as designing filters and ...
Mohseni, Mansour (2011)A review of the latest international grid codes shows that large wind power plants are stipulated to not only ride-through various fault conditions, but also exhibit adequate active and reactive power responses during the ...
Fereidouni, Alireza; Masoum, M.; Moghbel, Moayed (2015)Among the four basic dynamic voltage restorer (DVR) topologies, the network-side shunt-connected DVR (NSSC-DVR) has a relatively poor performance and is investigated in this paper. A new configuration is proposed and ...