Affiliation:
1. College of Physics and Information Engineering the Optoelectronic Materials and Device Application Industry Technological Development Base of Fujian Province and the Key Laboratory of Light Field Manipulation and System Integration Applications in Fujian Province Minnan Normal University Zhangzhou China
Abstract
AbstractA new adaptive‐linear‐neuron‐ (ADALINE‐) based dead‐time compensation method is presented for permanent magnet synchronous motor (PMSM) drives. It is proposed to suppress the sixth current harmonics adaptively in the synchronous reference frame due to dead‐time effects. In order to extract the sixth current harmonics, two ADALINE‐based extractors are used without taking into account the electrical lead angle. An improved ADALINE algorithm is used to calculate compensation voltages, taking into account the phase shift of impedance. The proposed method is capable of operating not only at low speed but also at medium and rated speeds in contrast to the traditional compensation method of ADALINE only at low speed. The new method is effective in steady, load dynamic and speed dynamic states with no needs for any extra hardware to detect phase current polarity. The effectiveness of the proposed compensation method is verified on a 780 W PMSM drive through experiments.
Funder
Natural Science Foundation of Fujian Province
Publisher
Institution of Engineering and Technology (IET)