A Fast PV Power Tracking Control Algorithm With Reduced Power Mode

作者：Ahmed Ashraf; Ran Li; Moon Sol; Park Joung Hu^*

来源：IEEE Transactions on Energy Conversion, 2013, 28(3): 565-575.

DOI：10.1109/TEC.2013.2266343

• Hill climbing
• maximum power point tracking (MPPT)
• photovoltaic (PV) power
• reduced power mode (RPM)

This paper presents a fast maximum power point tracking (MPPT) control algorithm for the photovoltaic (PV) in a hybrid wind-PV system, in which the PV generator may also need to work in a reduced power mode (RPM) to avoid dynamic overloading. The two control modes, MPPT and RPM, are inherently compatible and can be readily implemented, without the need of a dumping load for the RPM. Following the establishment of a dynamic system model, the study develops the guidelines to determine the variables of a direct hill-climbing method for MPPT: the perturbation time intervals and the magnitudes of the applied perturbations. These results are then used to optimally set up a variable-step size incremental conductance (VSIC) algorithm along with adaptive RPM control. The power tracking performance and power limiting capability are verified by simulation and experiment.

• 出版日期2013-9
• 单位重庆大学