Design and Analysis of a Three-Phase Grid-Connected Solar PV Inverter with Proportional-Integral Controller

Lumei, Kemoh

doi:10.1109/inocon50539.2020.9298348

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…Proportional-integral controllers have the merits of easy design as well as structural simplicity. Many literatures have been reported regarding the control of solar energy system [3][4][5][6][7][8][9][10][11][12][13][14][15]. However, solar energy systems governed by proportional-integral controllers may be affected with uncertainties, like partial shading problem.…”

Section: Introductionmentioning

confidence: 99%

Grey prediction-based proportional-integral controller applied to solar energy systems

Chang,

Wu,

Tsai

et al. 2023

J. Phys.: Conf. Ser.

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Proportional-integral (PI) controller with simple architecture as well as convenient design makes it widely adopted in the control of solar energy systems. Due to partial shading as well as fault influence, the solar panels tend to be trapped at regional extremely values, attenuating the dynamic and steady-state response. For the sake of strengthening the system control effectiveness, this paper employs a grey prediction-based PI controller to attain a global maximization of the wattage pointed following in sun power plate, providing a pure sine waveform with lower percentage of total harmonic distortion, in addition to fast transience of the solar energy system output voltage. The PI performs tracking control and simultaneously the grey prediction uses a logistic grey model to accurately predict the system state as well as to adjust the PI control parameters for establishing robust system response. The results reveal that the output of the solar system can produce fast dynamics and high efficient steady-state performance, thereby supporting the theoretical validity.

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