DocumentCode :
2807561
Title :
The low-cost single-stage grid connected photovoltaic system with a modified MPPT method
Author :
Phan Quoc Dzung ; Nguyen Truong Dan Vu ; Nguyen Bao Anh ; Le Minh Phuong ; Le Chi Hiep ; Hong-Hee Lee
Author_Institution :
Sch. of Electr. Eng., Univ. of Ulsan, Ulsan, South Korea
fYear :
2012
fDate :
Oct. 30 2012-Nov. 2 2012
Firstpage :
1
Lastpage :
6
Abstract :
Single-stage topology and the maximum power point tracking (MPPT) algorithm have advantages such as simple configuration and high efficiency in grid-connected photovoltaic (PV) systems. However, in conventional systems, current and voltage sensors of PV system are normally used for MPPT. This paper presents a low-cost single-stage grid- connected PV system without PV current sensor with a modified MPPT method. This method is not derived from complex state equations and is not dependent on any circuit parameters. It simply calculates the output power of the inverter to replace the input power of the PV systems in the MPPT algorithm. The new algorithm is simulated by using Matlab/Simulink software and implemented in the experimental prototype. With the one-stage configuration and PV current sensorless method, the prototype is suitable for lowcost implementation in the practice.
Keywords :
invertors; maximum power point trackers; photovoltaic power systems; power grids; Matlab-Simulink software; PV current sensorless method; grid-connected PV systems; inverter; low-cost single-stage grid-connected photovoltaic system; maximum power point tracking algorithm; modified MPPT method; one-stage configuration; voltage sensors; Educational institutions; Hysteresis; Integrated circuits; Inverters; Sensor systems; Maximum power point tracking (MPPT); maximum power point tracker (MPPTer); photovoltaic (PV); single-stage (OS);
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power System Technology (POWERCON), 2012 IEEE International Conference on
Conference_Location :
Auckland
Print_ISBN :
978-1-4673-2868-5
Type :
conf
DOI :
10.1109/PowerCon.2012.6401321
Filename :
6401321
Link To Document :
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