New Approach for Design of Shunt Active Power Filter for Power Quality Improvement in a Three Phase Three Wire System

Bett, Nelson K.; Maina, Christopher C.; Hinga, Peterson K.

doi:10.1109/powerafrica49420.2020.9219889

Cited by 5 publications

(3 citation statements)

References 6 publications

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“…(2) Current tracking control module: A deadbeat current tracking control based on hybrid prediction is adopted in this study. (3) The driver module is responsible for driving insulated grid bipolar transistor (IGBT) switching devices with over-current and over-voltage protection logic. (4) A voltage-source three-phase bridge inverter circuit is adopted for producing the harmonic compensation current.…”

Section: Principle and Improvement Of A Deadbeat Control A Principle ...mentioning

confidence: 99%

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Hybrid Prediction-Based Deadbeat Control for a High-Performance Shunt Active Power Filter

Zhou

Jia

et al. 2023

IEEE Access

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This paper proposes a hybrid current predictive deadbeat tracking control method to address the problem that a conventional deadbeat current tracking control has evolved into a deadbeat control in the digital implementation process. First, the reference current prediction link provides in advance the harmonic compensation reference current at two sampling periods by adopting adaptive forward linear prediction and repetitive prediction algorithms. It realizes the switching between the two current prediction algorithms by setting load dynamic occurrence discriminant conditions. Second, the inverter output current historical and harmonic compensation reference current data is used to predict the output current of the inverter. It can effectively predict the output current of the inverter while considering measurement noise suppression. The problems of the deadbeat control method are its strong mathematics model dependence and weak ability to resist high-frequency interference. Therefore, this study analyzes the robust stability of the control system under the uncertainties of the output filter inductor and equivalent resistance parameters of the active power filter and the measurement noise transmission in the system. Finally, the simulation and experimental results indicate that the proposed method based on hybrid current prediction has a high steady-state compensation accuracy and a fast dynamic response speed under steady-state and load mutation conditions. Thus, the proposed method can still effectively compensate the harmonic current under the condition of uncertain output filter inductor and its equivalent resistance parameters.

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Section: Principle and Improvement Of A Deadbeat Control A Principle ...mentioning

confidence: 99%

“…power supply and distribution system and other types of equipment become severely threatened [3]. Active power filters (APFs) have aroused considerable interest in harmonic control and reactive power compensation in a power grid owing to APFs' good dynamic response speed and steadystate compensation accuracy [4], [5], [6].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Prediction-Based Deadbeat Control for a High-Performance Shunt Active Power Filter

Zhou

Jia

et al. 2023

IEEE Access

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“…On the one hand, this has made the transformation and application of electric energy convenient; on the other hand, serious power quality problems are caused. The active power filter (APF) will be one of the most important devices to improve the power quality in the future [1,2]. Compared with the passive power filter, the APF can achieve fast and flexible compensation, does not influence the system impedance, and does not produce resonance with the grid impedance.…”

Section: Introductionmentioning

confidence: 99%

A Novel Multilevel Controller

et al. 2021

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Active power filter is an important means to improve power quality, and power topology is an important part of active power filter. Therefore, the research on power topology has important practical value. This paper proposes a simple-structure topology that employs eight switching power devices, two capacitors, and eight diodes to realize nine-level voltage output. The proposed topology can effectively reduce the volume and weight of the device and achieve multilevel output. Simultaneously, a compound control strategy, consisting of integrated phase voltage control and cell capacitance voltage control, is proposed for unit voltage equalization control. Finally, taking the three-phase active power filter as the research object, simulation and experimental verification are carried out with the proposed topology. The results show that the proposed topology and control scheme are feasible, and in the case of sudden load change, the fluctuation of capacitor voltage V1 is less than 3 V, the fluctuation of capacitor voltage V2 is less than 1 V, and the THD (Total Harmonic Distortion) of the phase current is well suppressed to 3.84%.

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