Novel control design algorithm for a PV sun tracking mechanism

8th International Conference on Advanced Concepts in Mechanical Engineering

Marcu, A.^1 ; Alexandru, C.^1

Product Design, Mechatronics and Environment Department, Transilvania University of Braov, Romania^1

关键词: Design for control;    Generalized reduced gradient algorithms;    Input and outputs;    Mechanical device;    Software environments;    Software solution;    Sun tracking mechanism;    Tracking accuracy;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/444/5/052005/pdf
DOI  :  10.1088/1757-899X/444/5/052005

来源: IOP

【 摘 要 】

In this work, a mechatronic solar tracker used for increasing the efficiency of the PV systems is approached in the modern trend of concurrent engineering, the study being focused on the optimal design of the control device, which is a mono-loop system with feedback based on PID controller. The mechanical device of the solar tracker, which corresponds to a dual-axis azimuthal mechanism, is defined as a multi-body system (MBS) those modeling is carried out by using the MBS software environment ADAMS. The control system block diagram is then developed in the DFC (Design for Control) software solution EASY5, the communication (link) between the two models (MBS & DFC) being managed through the input and output control plants. The optimization of the control system aims to determine the optimal values of the tuning factors of the PID controller so that to minimize the tracking accuracy, which is expressed as the difference between the imposed and measured values of the PV panel angles (daily and elevation). A generalized reduced gradient (GRG) algorithm was used to find the optimal design.