Comparative performance evaluation of phase-locked loop (PLL) algorithms for single-phase grid-connected converters

Lü, Chang; Zhou, Zhifeng; Jiang, Aiting; Luo, Mingyu; Shen, Pan; Han, Yi

doi:10.1109/ipemc.2016.7512406

Cited by 4 publications

(1 citation statement)

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“…The control block R i is responsible for obtaining the reference current and estimating its value to the second horizon. A Phase-Locked Loop (PLL) scheme has been used to obtain a high power factor, i.e., voltage and current in the grid are in phase [40]. The system model provides x k and u k in which they become input to the discrete model and, in turn, return the prediction of currents x k+2 to be used in the total cost function.…”

Section: Table I Switching States and Resulting Voltagesmentioning

confidence: 99%

Predictive Control for a Single-Phase to Three-Phase Converter with Two-Parallel Single-Phase Rectifiers

Ferreira,

Dias,

Rocha

et al. 2023

Eletrônica de Potência

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This paper presents a parallel single-phase to three-phase drive system, using two single-phase rectifiers. The rectifiers are not isolated from the grid by low-frequency transformers, so the reduction of the circulation current is an important objective for the control strategy. Modulated Model Predictive Control regulates the grid current and minimizes the circulation current between the parallel rectifiers. Furthermore, the analyzed predictive control consists of two strategies, where the first has the application of two vectors in a sampling period while the second has three vectors. The addition of a vector allows the reduction of the computational cost due to the reduction of tests performed in the predictive control and reduces the harmonic distortion in the electrical grid due to the greater application of vectors in a sampling period. Simulation and experimental results are presented in order to validate the control strategy.

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Section: Table I Switching States and Resulting Voltagesmentioning

confidence: 99%