Title :
Study on SPLL of Grid-connected PV generation system
Author_Institution :
Sch. of Phys. & Electron. Eng., Leshan Normal Univ., Leshan, China
Abstract :
If there is a tiny frequency difference between Grid frequency and grid frequency, the grid electricity transmission can be influenced. To solve this problem, the grid phase locked loop technique principle was introduced. At the same time, the grid frequency tracking locking was realized by FPGA. Through the locking the frequency of DSP, SPWM wave was produced. Finally, the voltage from LC filtering was connected with grid. The 2 KVA prototype test verifies the feasibility of this method. And thus, the grid inverter can transmit the electricity stable and reliable.
Keywords :
digital signal processing chips; field programmable gate arrays; phase locked loops; photovoltaic power systems; power grids; DSP frequency locking; FPGA; LC filtering; SPLL; SPWM wave; apparent power 2 kVA; grid electricity transmission; grid frequency; grid frequency tracking locking; grid phase locked loop technique; grid-connected PV generation system; Digital signal processing; Field programmable gate arrays; Inverters; Phase locked loops; Photovoltaic systems; Vectors; DSP; FPGA; all digital phase lock; grid;
Conference_Titel :
Computational Problem-Solving (ICCP), 2012 International Conference on
Conference_Location :
Leshan
Print_ISBN :
978-1-4673-1696-5
Electronic_ISBN :
978-1-4673-1695-8
DOI :
10.1109/ICCPS.2012.6384296
