Title :
New optimization in photovoltaic installations with energy balance with the three-phase utility
Author :
Alfonso-Gil, J.C. ; Gimeno-Sales, F.J. ; Segui-Chilet, S. ; Orts, S. ; Calvo, J. ; Fuster, Vte
Author_Institution :
Inst. de Tecnologia Electr., Universidad Politecnica de Valencia, Spain
Abstract :
The paper propose a new maximum power point tracking (MPPT) system built in the control block, useful for three-phase (4 wires) photovoltaic (PV) generators connected to the utility. The system can be connected directly to the PV panels, avoiding the use of DC/DC converters. The number of sensors is reduced. The MPPT algorithm establishes an energy balance between the DC and AC sides through the DC bus voltage control. The three-phase inverter output currents are controlled using a hysteresis-band control. The simulated results show the control loop dynamic response and stability against the most typical perturbations. The PV panel model used in the simulation is described.
Keywords :
DC-DC power convertors; electric current control; invertors; photovoltaic power systems; voltage control; DC bus voltage control; DC-DC converters; control loop dynamic response; energy balance; hysteresis-band control; maximum power point tracking system; photovoltaic installations; three-phase inverter; three-phase photovoltaic generators; Control systems; DC-DC power converters; Hysteresis; Inverters; Photovoltaic systems; Power generation; Solar power generation; Stability; Voltage control; Wires;
Conference_Titel :
Industrial Electronics, 2005. ISIE 2005. Proceedings of the IEEE International Symposium on
Conference_Location :
Dubrovnik, Croatia
Print_ISBN :
0-7803-8738-4
DOI :
10.1109/ISIE.2005.1529057
