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YASIN KHAN1, MUHAMMAD HAFEEZ ABBASI1, ABDULHAMEED AL-OHALY1
- Department of Electrical Engineering, King Saud University, Riyadh, Kingdom of Saudi Arabia
Photovoltaic (PV) inverter is the basic unit for low voltage ride through (LVRT) to determine dynamics of grid tied PV plant. There are various control methods for PV inverter. In this paper two methods i.e. Taguchi and Ziegler-Nicholas are used to tune and control the proportional–integral (PI) controller for PV inverter. Based on the study of modeling and simulation by PSCAD/EMTDC, it was analyzed and proved that feasibility and effectiveness of grid tied PV model under controlled environment. For this purpose a detail model grid tied PV model is designed in PSCAD. Cascaded control scheme is used for grid-tied PV inverter. Cascade controller using PI controllers are fine-tuned using Taguchi Approach and ZieglerNicholas method. Simulation results indicate the capability of the PV system to ride through the faults determined by low voltage ride through (LVRT) under Taguchi tuning method is better than Ziegler-Nicholas Method..
Photovoltaic, LVRT, grid Integration, Taguchi approach, Ziegler-Nicholas, PSCAD, MPPT.
Submitted at: Nov. 3, 2015
Accepted at: June 9, 2016
YASIN KHAN, MUHAMMAD HAFEEZ ABBASI, ABDULHAMEED AL-OHALY, Dynamic analysis for grid tied PV inverter under controlled environment, Journal of Optoelectronics and Advanced Materials Vol. 18, Iss. 5-6, pp. 490-497 (2016)
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