A current control strategy for three-phase PV power system with low-voltage ride-through
Journal
IET Conference Publications
Journal Volume
2012
Journal Issue
616 CP
Date Issued
2012
Author(s)
Wu, Y.-S.
Chang, C.-H.
Chen, Y.-M.
Liu, C.-W.
Chang, Y.-R.
Abstract
The objective of this paper is to propose a current amplitude limitation control (CALC) strategy for the threephase Photovoltaic (PV) power system with the low-voltage ride-through (LVRT) capability. The PV power system with the proposed CALC strategy can output both demanded active and reactive power depending on the output power condition of the PV arrays and the power rating of the PV inverter. Therefore, the PV power system is able to continuously extract power from the PV arrays. When the voltage sag is eliminated, the PV inverter can quickly achieve its maximum power output. In this paper, the operational principle and the analytical derivation of the proposed CALC for the three-phase PV power system will be introduced in detail. Then, computer simulations are shown to verify the performance of the PV power system with the proposed CALC.
Subjects
Current amplitude limitation control (CALC); Low-voltage ride-through (LVRT); Maximum power point tracking (MPPT); Three-phase Photovoltaic (PV) Power system
SDGs
Other Subjects
Computer simulation; Maximum power point trackers; Active and Reactive Power; Current amplitude; Current control strategy; Low-voltage ride-through; Maximum power output; Maximum Power Point Tracking; Operational principles; Photovoltaic power systems; Photovoltaic cells
Type
conference paper