Open AccessProportional‐type performance recovery current tracking control algorithm for PMSM
Author(s) -
Kim SeokKyoon
Publication year - 2018
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
ISSN - 1751-8679
DOI - 10.1049/iet-epa.2017.0508
Subject(s) - control theory (sociology) , offset (computer science) , permanent magnet synchronous motor , exponential growth , current (fluid) , computer science , magnet , first order , engineering , control (management) , mathematics , electrical engineering , artificial intelligence , mechanical engineering , mathematical analysis , programming language
This study presents a proportional‐type non‐linear current control algorithm for permanent magnet synchronous motors (PMSMs) with performance recovery and offset‐free properties. The contribution falls into two parts. First, the disturbances from the model‐plant mismatch are exponentially estimated by the proposed first‐order convergent disturbance observers. Second, it is proven that the proposed algorithm guarantees the performance recovery and offset‐free properties, also stabilises the first‐order internal dynamics that arise from the PMSM speed dynamics. The closed‐loop performance was shown by the simulations and experiments by using a 5 kW interior PMSM.