Title :
Verification test results of 2nd stage in Hokuto mega-solar system
Author :
Konishi, Hiroo ; Iwato, Takeshi ; Kudou, Mitsuru
Author_Institution :
NTT Facilities Inc., Tokyo, Japan
Abstract :
About 2MW PV system has been constructed in Hokuto to verify grid stabilization with a large-scale PV system. The 400 kW large-scale power conditioner (LS-PCS) has been developed to connect it to an existing extra-high voltage AC grid effectively and to operate stably. A modification of maximum power tracking (MPPT) control in the LS-PCS was performed to the voltage control from current control in order to get PV generation power with high efficiency even in frequent solar radiation changes. In this paper, project outlines were introduced first and verification test results on grid stabilization R&D of 2nd stage were shown and discussed.
Keywords :
electric current control; maximum power point trackers; photovoltaic power systems; power grids; power system control; voltage control; Hokuto mega-solar system; PV generation power; current control; extra-high voltage AC grid; grid stabilization; large-scale PV system; large-scale power conditioner; maximum power tracking control; power 2 MW; power 400 kW; solar radiation changes; verification test results; voltage control; Current control; Current measurement; Power generation; Power measurement; Radiation effects; Voltage control; Voltage measurement;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2011 37th IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-9966-3
DOI :
10.1109/PVSC.2011.6186428
