TY - GEN
T1 - Dithering digital ripple correlation control with digitally-assisted windowed sensing for solar photovoltaic MPPT
AU - Barth, Christopher B.
AU - Pilawa-Podgurski, Robert C.N.
PY - 2014
Y1 - 2014
N2 - This work demonstrates the use of windowed current and voltage measurements for high accuracy PV maximum power point tracking using dithering digital ripple correlation control (DDRCC) at voltage and current levels typical of PV panels. Prior work has demonstrated that DDRCC can be used to obtain high tracking accuracy at fast speeds in low-power applications, however the measurement resolution required for DDRCC is non-trivial at typical panel power levels. In this work a circuit configuration is demonstrated which allows high resolution measurements using a basic microcontroller and analog circuitry. Using this technique, we experimentally demonstrate a 3.5X reduction in tracking error compared to conventional perturb and observe on the same hardware.
AB - This work demonstrates the use of windowed current and voltage measurements for high accuracy PV maximum power point tracking using dithering digital ripple correlation control (DDRCC) at voltage and current levels typical of PV panels. Prior work has demonstrated that DDRCC can be used to obtain high tracking accuracy at fast speeds in low-power applications, however the measurement resolution required for DDRCC is non-trivial at typical panel power levels. In this work a circuit configuration is demonstrated which allows high resolution measurements using a basic microcontroller and analog circuitry. Using this technique, we experimentally demonstrate a 3.5X reduction in tracking error compared to conventional perturb and observe on the same hardware.
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U2 - 10.1109/APEC.2014.6803540
DO - 10.1109/APEC.2014.6803540
M3 - Conference contribution
AN - SCOPUS:84900419634
SN - 9781479923250
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1738
EP - 1746
BT - APEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
Y2 - 16 March 2014 through 20 March 2014
ER -