The Development of a 20MW PWM Driver for Advanced Fifteen-Phase Propulsion Induction Motors

Chi Sun; Sheng Ai; Liangdeng Hu; Yulin Chen

The Development of a 20MW PWM Driver for Advanced Fifteen-Phase Propulsion Induction Motors

Vol. 15, No. 1, pp. 146-159, Jan. 2015

10.6113/JPE.2015.15.1.146

20MW-level

Fifteen-phase

Hydraulic Dynamometer

Propulsion Motor

PWM Driver

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Abstract

Since the power capacity needed for the propulsion of large ships is very large, a multiphase AC induction propulsion mode isgenerally adopted to meet the higher requirements of reliability, redundancy and maintainability. This paper gives a detaileddescription of the development of a 20MW fifteen-phase PWM driver for advanced fifteen-phase propulsion induction motors with aspecial third-harmonic injection in terms of the main circuit hardware, control system design, experiments, etc. The adoption of themodular design method for the main circuit hardware design can make the enclosed mechanical structure simple and maintainable. Itcan also avoid the larger switch stresses caused by the multiple turn on of the IGBTs in conventional large-capacity convertersystems. The use of the distributed controller design method based on a high-speed fiber-optic ring net for the control system canovercome such disadvantages as the poor reliability and long maintenance times arising from the conventional centralized controllerwhich is designed according to point-to-point communication. Finally, the performance of the 20MW PWM driver is verified byexperimentation on a new fifteen-phase induction propulsion motor.

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Cite this article

[IEEE Style]

C. Sun, S. Ai, L. Hu, Y. Chen, "The Development of a 20MW PWM Driver for Advanced Fifteen-Phase Propulsion Induction Motors," Journal of Power Electronics, vol. 15, no. 1, pp. 146-159, 2015. DOI: 10.6113/JPE.2015.15.1.146.

[ACM Style]

Chi Sun, Sheng Ai, Liangdeng Hu, and Yulin Chen. 2015. The Development of a 20MW PWM Driver for Advanced Fifteen-Phase Propulsion Induction Motors. Journal of Power Electronics, 15, 1, (2015), 146-159. DOI: 10.6113/JPE.2015.15.1.146.