TY - GEN
T1 - Implementation of dithering digital ripple correlation control for PV maximum power point tracking
AU - Barth, Christopher
AU - Pilawa-Podgurski, Robert C.N.
PY - 2013/12/9
Y1 - 2013/12/9
N2 - This work demonstrates a method for rapid maximum power point tracking in photovoltaic applications using dithered PWM control. Constraints imposed by power consumption, cost and component size, limit the available PWM resolution of a power converter, and may in turn limit the MPP tracking efficiency of the PV system. PWM dithering can be used to improve average PWM resolution. However, additional tracking delays are also introduced. By applying digital dithering ripple correlation control to the ripple caused by PWM dithering it is possible to achieve high tracking speed in addition to high PWM resolution. We present a theoretical derivation of the principles behind DDRCC, as well as experimental results that show excellent tracking speed and accuracy with basic hardware requirements.
AB - This work demonstrates a method for rapid maximum power point tracking in photovoltaic applications using dithered PWM control. Constraints imposed by power consumption, cost and component size, limit the available PWM resolution of a power converter, and may in turn limit the MPP tracking efficiency of the PV system. PWM dithering can be used to improve average PWM resolution. However, additional tracking delays are also introduced. By applying digital dithering ripple correlation control to the ripple caused by PWM dithering it is possible to achieve high tracking speed in addition to high PWM resolution. We present a theoretical derivation of the principles behind DDRCC, as well as experimental results that show excellent tracking speed and accuracy with basic hardware requirements.
UR - http://www.scopus.com/inward/record.url?scp=84889008291&partnerID=8YFLogxK
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U2 - 10.1109/COMPEL.2013.6626397
DO - 10.1109/COMPEL.2013.6626397
M3 - Conference contribution
AN - SCOPUS:84889008291
SN - 9781467349161
T3 - 2013 IEEE 14th Workshop on Control and Modeling for Power Electronics, COMPEL 2013
BT - 2013 IEEE 14th Workshop on Control and Modeling for Power Electronics, COMPEL 2013
T2 - 2013 IEEE 14th Workshop on Control and Modeling for Power Electronics, COMPEL 2013
Y2 - 23 June 2013 through 26 June 2013
ER -