Title :
An experimental system of power grid including photovoltaic system based on TMS320F28027
Author :
Lu, Huifen ; Gu, Yunjie ; Yu, Hongibin ; Li, Wuhua
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
The proposed experimental system uses TMS320F28027 as the control core to realize the functions of maximum power point tracking (MPPT), synchronizing of the output voltage with the given frequency and phase, under voltage and over current protection, under voltage recovery and others. The topology of the main circuit is a full bridge inverter controlled by the unipolar sinusoidal pulse-width-modulation (SPWM) strategy. The MPPT is implemented using the constant input voltage method. Phase tracking is achieved using a software phase lock loop (PLL). The tested results show that the system has perfect performances, such as high efficiency, low grid-connected total harmonic distortion (THD), excellent tracking performance, consummate over-current (OVC) and under-voltage protections (UVP).
Keywords :
PWM invertors; maximum power point trackers; overcurrent protection; phase locked loops; photovoltaic power systems; power generation protection; power grids; MPPT; PLL; SPWM strategy; TMS320F28027; constant input voltage method; full bridge inverter control; maximum power point tracking; output voltage synchronization; overcurrent protection; phase lock loop software; phase tracking; photovoltaic system; power grid; under-voltage protection; under-voltage recovery; unipolar sinusoidal pulse width modulation strategy; Inverters; Modulation; Phase locked loops; Photovoltaic systems; Presses; Transient response; Voltage control; C2000; Doubled frequency SPWM; MPPT; PLL; Photovoltaic grid connected inverter;
Conference_Titel :
Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011 2nd International Conference on
Conference_Location :
Deng Leng
Print_ISBN :
978-1-4577-0535-9
DOI :
10.1109/AIMSEC.2011.6010036
