Abstract
As international regulations on greenhouse gas emissions are becoming stricter, the development of eco-friendly main engines is required for ocean-going ships. To use cryogenic LNG as a fuel for marine engines, it has to be converted to gas. This processing device is called an LNG regasification system. This paper presents a DS-based PID controller for glycol temperature control of a regasification system for LNG-fueled marine engines. In controller design, linear PID controllers have something of a catch-22 relationship: Fast response requires a large gain, which results in a large overshoot. To solve this problem, a DS-based 2-DOF PID controller is considered, which consists of a PID controller to reject disturbances in regulatory response and a set-point filter to reduce overshoot in servo response. The controller design focuses on improving disturbance rejection performance. The DS method is based on comparing the desired closed-loop characteristic equation with the closed-loop characteristic equation consisting of a control object and PID controller. The proposed controller is applied to the glycol temperature control of the regasification system for LNG-fuel marine engines, and its performance is compared with existing methods to show its effectiveness and applicability.
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
