|Table of Contents|

Model-free adaptive vector control method of SSP propulsion motor for ship pod(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2014年06期
Page:
59-66
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Model-free adaptive vector control method of SSP propulsion motor for ship pod
Author(s):
YAO Wen-long1;  ZHANG Jun-dong1;  CHI Rong-hu2;  ZHANG Gui-chen3;  SHI Zhen-hua4
1. School of Marine Engineering, Dalian Maritime University, Dalian 116026, Liaoning, China; 2. School of Automation and Electronic Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China; 3. School of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China; 4. Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge 02139, Massachusetts, USA
Keywords:
marine engineering;  ship pod;  SSP propulsion motor;  model-free adaptive vector control;  self-adjusting PI vector control
PACS:
U665.11
DOI:
-
Abstract:
Considering the control problems of propulsion motor of ship SSP(siemens schottel propulsor)system under uncertain dynamic state, load change and sea condition disturbance, a model-free adaptive vector control method was proposed. The dynamic linearization equations of propulsion motor were derived. A model-free adaptive vector controller was designed based on the speed tracking error and its convergence was proved. The pseudo-partial-derivative was online adjusted to ensure the tracking error of propulsion motor control system uniformly bounded. The control performances of model-free adaptive vector controller and self-adjusting PI vector controller were compared. Computed result shows that based on model-free adaptive vector control, the speed average oscillations are within 6 r·min-1 and 7 r·min-1 in rough sea and maneuverable navigation, respectively, and the torque average oscillations are 8.20×104 N·m and 1.08×105 N·m, respectively. But based on self-adjusting PI vector control, the average speed oscillations reach 13 r·min-1and 12 r·min-1, respectively, and the torque average oscillations are 2.13×105 N·m and 2.81×105 N·m, respectively. Obviously, the model-free adaptive vector control system has lower speed and torque fluctuations and smaller static error of steady state operation, so its dynamic responses are better. 6 figs, 21 refs.

References:

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Last Update: 2014-12-20