Implementation of output impedance in single‐phase inverters with repetitive control and droop control

Astrada, Juan Carlos; Angelo, Cristian H. De

doi:10.1049/iet-pel.2020.0165

Cited by 7 publications

(2 citation statements)

References 50 publications

(128 reference statements)

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“…The SAPF main circuit is usually connected in parallel between the power source and the load. The functions of each part are as follows: first, the command current operation circuit extracts the harmonic component in the nonlinear load current through the harmonic current detection algorithm based on the instantaneous reactive power theory to form a command signal and transmit the command signal to the control chip (Juan and Cristian, 2020). The isolation and drive circuit generates the drive signals of the power switching devices of the main circuit to control the turn-on or turn-off of the switching devices of each bridge arm of the inverter to generate the actual compensation current to offset the harmonic current in the power grid (Li et al, 2020).…”

Section: Related Workmentioning

confidence: 99%

Immunity of shunt active power filter based on improved LADRC

Yin

2023

Transactions of the Institute of Measurement and Control

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To improve the dynamic response speed and performance of active power filter controller, and improve the robustness, tracking ability, and disturbance rejection ability of linear active disturbance rejection controller (ADRC), an improved linear ADRC (LADRC) is proposed. First, a new error adjustment total disturbance is introduced into the linear expansion state observer to adjust the total disturbance of the linear expansion state observer. Then, on the premise of system stability, the controller is applied to the voltage outer loop of shunt active power filter (SAPF), and the mathematical model of active power filter is deduced, and it is controlled according to the first-order linear active disturbance rejection controller. Finally, through frequency domain analysis, the stability, noise immunity, and tracking performance of the improved LADRC are analyzed. Using MATLAB and Simulink simulation platform, the current stability and tracking performance of SAPF under improved LADRC control are simulated and verified, and compared with traditional methods. The simulation results show that the waveform fluctuation of A-phase voltage on the grid side of this method is relatively smooth, and the voltage on the grid side is always kept at ±50 V; the voltage curve of SAPF DC side is kept between the actual set values, about 820 V; the waveform fluctuation of A-phase current on the load side is small, which is ±220 A; the harmonic distortion rate is 4%. It is verified that this method has good tracking effect and anti-interference characteristics, which is of great significance to improve the control performance of active power filter.

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Section: Related Workmentioning

confidence: 99%

Immunity of shunt active power filter based on improved LADRC

Yin

2023

Transactions of the Institute of Measurement and Control

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“…Essas restrições implicam, do ponto de vista de controle, no seguimento da referência senoidal e na rejeição de distúrbios harmônicos causados pelas cargas não lineares. Devido a isso, geralmente são empregados controladores baseados no princípio do modelo interno (PMI) como, por exemplo, os controladores ressonantes (Lorenzini et al ( 2020)) e repetitivos (Astrada and de Angelo (2020)).…”

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Análise da Influência do Controlador Múltiplo-Ressonante no Paralelismo de UPSs via Droop

Keiel

Flores

Pereira

2021

Procedings Do XV Simpósio Brasileiro De Automação Inteligente

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This paper presents the main effects of the multiple-resonant voltage controller on the parallelism of uninterruptible power supplies (UPSs) with droop control. Assuming a finite gain multiple-resonant controller, it is evidenced the influence of its damping coefficients in the UPS output impedance and on the design of the droop gains via root locus. It is also shown that these coefficients can emulate the effect of a virtual resistance, usually applied in the droop control. Simulation results illustrate the proposed analysis. Resumo: Este artigo apresenta os principais efeitos do controlador de tensão múltiplo-ressonante no paralelismo de fontes ininterruptas de energia (UPSs) via controle droop. Assumindo um controlador múltiplo-ressonante de ganho finito, é evidenciada a influência dos coeficientes de amortecimento deste controlador na impedância de saída da UPS e no projeto dos ganhos de droop via lugar das raízes. Também é mostrado que estes coeficientes podem emular o efeito de uma resistência virtual, usualmente empregada no controle droop. Resultados de simulação ilustram a análise proposta.

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Continuous switching sliding mode controller design for single-phase UPS inverter circuit

Yan

2024

Electr Eng

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Implementation of output impedance in single‐phase inverters with repetitive control and droop control

Cited by 7 publications

References 50 publications

Immunity of shunt active power filter based on improved LADRC

Immunity of shunt active power filter based on improved LADRC

Análise da Influência do Controlador Múltiplo-Ressonante no Paralelismo de UPSs via Droop

Continuous switching sliding mode controller design for single-phase UPS inverter circuit

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