title: Sensorless control of ship propulsion interior permanent magnet synchronous motor based on a new sliding mode observer.
abstract: This paper proposes a sensorless speed control strategy for ship propulsion interior permanent magnet synchronous motor (IPMSM) based on a new sliding-mode observer (SMO). In the SMO the low-pass filter and the method of arc-tangent calculation of extended electromotive force (EMF) or phase-locked loop (PLL) technique are not used. The calculation of the rotor speed is deduced from the Lyapunov function stability analysis. In order to reduce system chattering, sigmoid functions with switching gains being adaptively updated by fuzzy logic systems are innovatively incorporated into the SMO. Finally, simulation results for a 4.088 MW ship propulsion IPMSM and experimental results from a 7.5 kW IPMSM drive are provided to verify the effectiveness of the proposed SMO method.
authors.affiliation: Marine Engineering College, Dalian Maritime University, No. 1 Linghai Road, Dalian City 116026, Liaoning Province, China. Electronic address: rjjeer@126.com.
authors.forename: Jun-Jie
authors.initials: JJ
authors.lastname: Ren
authors.affiliation: Marine Engineering College, Dalian Maritime University, No. 1 Linghai Road, Dalian City 116026, Liaoning Province, China. Electronic address: liueer@126.com.
authors.forename: Yan-Cheng
authors.initials: YC
authors.lastname: Liu
authors.affiliation: Marine Engineering College, Dalian Maritime University, No. 1 Linghai Road, Dalian City 116026, Liaoning Province, China. Electronic address: n.wang.dmu.cn@gmail.com.
authors.forename: Ning
authors.initials: N
authors.lastname: Wang
authors.affiliation: Marine Engineering College, Dalian Maritime University, No. 1 Linghai Road, Dalian City 116026, Liaoning Province, China. Electronic address: losocy@163.com.
authors.forename: Si-Yuan
authors.initials: SY
authors.lastname: Liu
keywords: Propeller load characteristic; Sensorless control; Ship propulsion interior permanent magnet synchronous motor (IPMSM); Sigmoid function and fuzzy logic; Sliding-mode observer (SMO)