NDLI: Maximising power conversion for heaving point absorbers using a reference-based control technique

Content Provider	IET Digital Library
Author	Wahyudie, Addy Saeed, Omsalama Jama, Mohammed Noura, Hassan Harib, Khalifa
Abstract	This study considers maximising conversion between the mechanical and electrical powers for heaving point absorbers (HPAs). The objective is implemented by generating the buoy's velocity reference by designing the intrinsic resistance. The authors designed the intrinsic resistance using a rapid procedure involving the mechanical and electrical models of HPAs. The electrical power conversion can be improved by tuning a weighting constant with the constraints on the maximum value of the control force and the power take-off utilisation index. The value of the intrinsic resistance is varied based on irregular sea states, which are characterised by their significant heights and peak angular frequencies. A simple robust proportional-integral-derivative (PID) controller is utilised in the servo feedback control system to follow the velocity reference. The PID controller is designed using the complex polynomial stabilisation to convert the robust performance into a set of linear programming problems. A set of admissible PID controller is obtained to satisfy the robust performance specifications. The authors tested the proposed method in various nominal and perturbation scenarios, and its performance was compared with existing reference and non-reference based HPA control strategies.
Starting Page	271
Ending Page	280
Page Count	10
ISSN	17521416
Volume Number	11
e-ISSN	17521424
Issue Number	Issue 3, Feb (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/11/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2016.0255
Journal	IET Renewable Power Generation
Publisher Date	2016-09-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	A.C. Machine Actuating And Final Control Device Algebra Buoy Velocity Reference Control Force Value Control of Electric Power System Control System Analysis Control System Synthesis Electrical Power Conversion Electrical Powers Feedback Heaving Point Absorbers HPA Intrinsic Resistance Design Irregular Sea State Linear Machine Linear Programming Marine System Marine System Control Mechanical Powers Nominal Scenario Optimisation Technique Permanent Magnet Generator Permanent Magnet Linear Generator Perturbation Scenario Perturbation Technique PID Controller Design Polynomial Polynomial Stabilisation Power Conversion Power Conversion Maximisation Power Converter Power Supplies to Apparatus Power Take-off Utilisation Index Reference-based Control Technique Robust Control Robust Proportional-integral-derivative Controller Servo Feedback Control System Servomechanisms Synthesis Method Three-term Control Wave Power Wave Power Generation Weighting Constant Tuning
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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