Title :
Hardware implementation of optimization technique based sensorless MPPT method for grid-connected PV generation system
Author :
Park, Sangsoo ; Kim, Sang-Yong ; Jang, Seong-Jae ; Kim, Gyeong-Hun ; Seo, Hyo-Ryong ; Park, Minwon ; Yu, In-Keun
Author_Institution :
Dept. of Electr. Eng., Changwon Nat. Univ., Changwon, South Korea
Abstract :
This paper describes hardware implementation of optimization technique based sensorless MPPT (maximum power point tracking) method for grid-connected PV (photovoltaic) generation system. A DC-DC converter has been used to step-up the PV system voltage. Optimization technique (Simplex) has been implemented to optimize the current and voltage controller gain parameters. Optimization of duty ratio increment is applied for the speed and stability of MPPT. Hardware implementation results revealed that the proposed control scheme has better response. The experimental results are compared to the simulation results and discussed in detail.
Keywords :
DC-DC power convertors; electric current control; optimisation; photovoltaic power systems; power generation control; stability; voltage control; DC-DC converter; current controller gain parameters; grid-connected photovoltaic generation system; optimization technique; sensorless maximum power point tracking method; stability; voltage controller gain parameters; DC-DC power converters; Hardware; Mesh generation; Optimization methods; Photovoltaic systems; Power generation; Sensorless control; Solar power generation; Stability; Voltage control; Boost converter; Current control; DC-AC converter; Grid connection; MPPT; Optimization; POS (PV Output Sensorless); PV (PhotoVoltaic);
Conference_Titel :
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5177-7
Electronic_ISBN :
978-4-88686-067-5
DOI :
10.1109/ICEMS.2009.5382689
