Asymmetrical Three-Level Inverter SiC-Based Topology for High Performance Shunt Active Power Filter

Iturra, Rodrigo Guzman; Thiemann, Peter

doi:10.3390/en13010141

Cited by 5 publications

(6 citation statements)

References 40 publications

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“…Since wide-bandgap semiconductors are a significant trend in power electronics, some papers are studying their impact on APFs. An asymmetrical three-level APF based on silicon carbide MOSFETs is proposed in [110]. For high-frequency operation, this topology exhibits higher efficiencies than those of conventional three-level converters, such as NPCs.…”

Section: Shunt Active Power Filter Topologiesmentioning

confidence: 99%

Trends in Power Quality, Harmonic Mitigation and Standards for Light and Heavy Industries: A Review

Lumbreras

Gálvez²,

Collado³

et al. 2020

Energies

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The power quality of electrical grids is becoming an important issue worldwide. The electrical grid has to deliver sinusoidal voltages and currents without frequency or amplitude variations. However, the connection of non-linear loads generates harmonics that degrade the grid quality. The presence of harmonics in the load currents has many negative consequences and can distort the voltage waveform at the point of common coupling (PCC). Thus, it is essential to mitigate the harmonics in order to maintain a suitable grid quality. This is a shared responsibility between energy suppliers, manufacturers of electric and electronic equipment, and users. In this context, this work presents, for each stakeholder, a comprehensive analysis of their responsibilities and the standards that they should meet. Additionally, this paper reviews the most common types of filters used to comply with the applicable standards in industrial applications. Finally, in order to prove that active power filters allow maintaining good power quality in all types of grid, commercially available active power filters were installed in three different grids contexts: an office building, a factory, and a stadium with a large number of LEDs. The experimental results obtained were used to evaluate the impact of active filters on grid quality. This review would help users to overcome their grid distortion problems.

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Section: Shunt Active Power Filter Topologiesmentioning

confidence: 99%

Trends in Power Quality, Harmonic Mitigation and Standards for Light and Heavy Industries: A Review

Lumbreras

Gálvez²,

Collado³

et al. 2020

Energies

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“…In order to suppress the harmonic pollution, SAPF (shunt active power filter) has been widely used in the last decade. And the main control strategies of SAPF have been extensively investigated, including load current detection strategy, grid current detection strategy, and voltage detection strategy [7–12]. Among these strategies, the load current detection strategy is most popular due to its excellent stability and performance [7, 8].…”

Section: Introductionmentioning

confidence: 99%

Harmonic oscillation analysis and stabilization method comparison of shunt active power filter in full compensation mode

Zhang,

Yi,

Zhuo

et al. 2023

IET Power Electronics

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The harmonic compensation of SAPF (shunt active power filter) may trigger harmonic oscillation due to the interaction with grid impedance and non‐linear loads, which distorts the power quality. In previous research, the relevant mechanism has been studied. However, the SAPF generally employs complex harmonic detection algorithm, which significantly increases the computational demands. The SAPF in full compensation mode can effectively solve this problem. But the modification of harmonic detection link may change the oscillation mechanism and previous stabilization methods need to be re‐evaluated. Therefore, this paper establishes the small signal model of the SAPF system in full compensation mode and investigates its oscillation mechanism. It is revealed that harmonic compensation and passive resonance collectively induce the harmonic oscillation. Based on the model, the working mechanism and application performance of the main stabilization methods proposed in the past (harmonic virtual admittance and harmonic compensation canceling) are analyzed and compared. However, neither of them can achieve effective stabilization without sacrificing the performance of compensation. Consequently, the harmonic phase compensation method is proposed to achieve the stabilization of the SAPF system in full compensation mode without affecting normal compensation. Finally, simulations and experiments are performed to verify the mechanism analysis and proposed methods.

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“…Another less common control strategy is based on the measurement of voltage in the PCC. The reference current, which is proportional to voltage harmonic components, ensures compensation of distortions regardless of whether they come from the load or the supply side [28,29].…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis of Shunt Active Power Filter with Predictive Closed-Loop Control of Supply Current

Bielecka

Wojciechowski

2021

Energies

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This paper presents a shunt active power filter connected to the grid via an LCL coupling circuit with implemented closed-loop control. The proposed control system allows selective harmonic currents compensation up to the 50th harmonic with the utilization of a model-based predictive current controller. As the system is fully predictive, it provides high effectiveness of the harmonic reduction, which is proved by waveforms achieved in performed tests. On the other hand, the control system is prone to loss of stability. Therefore, the paper is focused on the stability analysis of the discussed control system with the additional outer control loop of the supply current with predictive control of this current. The conducted stability analysis encompasses the assessment of system stability as a function of the coupling circuit parameter identification accuracy, whose values are implemented in the current controller, as well as parameters such as the sampling frequency and proportional-integral (PI) controller coefficients. The obtained results show that the ranges of the LCL circuit parameter identification accuracy for which the system remains stable are relatively wide. However, the most effective compensation of the supply current distortion is achieved for the parameters identified correctly, and the greatest impact on the compensation quality has the value of L1 inductance.

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Asymmetrical Three-Level Inverter SiC-Based Topology for High Performance Shunt Active Power Filter

Cited by 5 publications

References 40 publications

Trends in Power Quality, Harmonic Mitigation and Standards for Light and Heavy Industries: A Review

Trends in Power Quality, Harmonic Mitigation and Standards for Light and Heavy Industries: A Review

Harmonic oscillation analysis and stabilization method comparison of shunt active power filter in full compensation mode

Stability Analysis of Shunt Active Power Filter with Predictive Closed-Loop Control of Supply Current

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