PV Power System With Multi-Mode Operation and Low-Voltage Ride-Through Capability
Journal
IEEE Transactions on Industrial Electronics
Journal Volume
62
Journal Issue
12
Pages
7524--7533
Date Issued
2015-12
Author(s)
Abstract
A multi-mode operation for the three-phase photovoltaic (PV) power system with low-voltage ride-through (LVRT) capability is proposed. With the proposed multi-mode control strategy, the active power from the PV arrays can be continuously extracted by the interleaved boost converter during LVRT, whereas the maximum power point tracking operation can be quickly achieved after the grid fault clearance. In addition, the multi-channel boost converter with interleaved operation can increase power conversion efficiency while decreasing the input current ripple. On the other hand, the current amplitude limitation control of the three-phase inverter can provide maximum reactive power under rated current amplitude during the voltage sag period and output the demanded reactive/rated current ratio to meet different LVRT codes. A three-phase 5-kVA prototype PV converter is built and tested to verify the performance of the proposed multi-mode operation strategy and the LVRT capability. © 1982-2012 IEEE.
Subjects
Inverters; Maximum power point trackers; Power system stability; Reactive power; Voltage fluctuations
SDGs
Other Subjects
DC-DC converters; Electric inverters; Electric power system control; Maximum power point trackers; Photovoltaic cells; Reactive power; System stability; Interleaved boost converters; Interleaved operations; Low-voltage ride-through; Maximum Power Point Tracking; Photovoltaic power systems; Power conversion efficiencies; Power system stability; Voltage fluctuations; Power converters
Type
journal article