Title :
Design of single phase photovoltaic grid-connected inverter based on DSP&ARM
Author :
Feng Zhang ; Jing Hui ; Lei Wu
Author_Institution :
Key Lab. of Adv. Process Control for Light Ind., Jiangnan Univ., Wuxi, China
Abstract :
Grid-connected inverter is a key electrical unit for photovoltaic generation system. In this paper, the architecture and its advantages of a single phase photovoltaic grid-connected inverter based on DSP + ARM dual-core control are studied. The novel maximum power point tracking (MPPT) control based on extremum seeking control (ESC) algorithm is used in the proposed system, and the speediness and stability of MPPT are improved. By using efficient, reliable second-order generalized integral phase locked loop (SOGI-OSG PLL) control, the output current and the voltage frequency synchronism are realized well.
Keywords :
electric current control; invertors; maximum power point trackers; phase locked loops; photovoltaic power systems; power grids; DSP + ARM dual-core control; MPPT; SOGI-OSG PLL control; electrical unit; extremum seeking control algorithm; maximum power point tracking; output current; photovoltaic generation system; second-order generalized integral phase locked loop; single phase photovoltaic grid-connected inverter; voltage frequency synchronism; Digital signal processing; Ground penetrating radar; Inverters; Maximum power point trackers; Phase locked loops; Photovoltaic systems; Voltage control; DSP+ARM; extremum seeking control; second-order generalized; single-phase inverter;
Conference_Titel :
Electronics and Application Conference and Exposition (PEAC), 2014 International
Conference_Location :
Shanghai
DOI :
10.1109/PEAC.2014.7038057
