| Abstract |
Multiphase motor drives are multi-dimensional
systems, so multiphase SVPWM must be implemented in a
multi-dimensional vector space to satisfy motor’s control
requirements. In this paper, a novel multi-dimensional
multiphase SVPWM strategy, which could synthesize the
required voltage vectors not only in d-q subspace but also in
other subspaces, is presented. Therefore, this strategy can
control all voltage and current harmonics which contribute
to the torque positively. Throughout this paper, a five-phase
permanent motor drive system is developed as an example,
and simulation and experimental results verify the validity
of the proposed method. For the purpose of comparison,
conventional SVPWM is also tested. |
