Selective Compensation of Distortion, Unbalanced and Reactive Power of a Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF)

2018 ◽  
pp. 181-203
Author(s):  
Lei Wang ◽  
Man-Chung Wong ◽  
Chi-Seng Lam
Keyword(s):  
Reactive Power ◽  
Active Power Filter ◽  
Active Power ◽  
Power Filter ◽  
Hybrid Active Power Filter

scholarly journals Improved p-q Harmonic Detection Method for Hybrid Active Power Filter

2018 ◽  
Vol 8 (5) ◽  
pp. 2910 ◽  
Author(s):  
Chau Minh Thuyen
Keyword(s):  
Dynamic Response ◽  
Reactive Power ◽  
Detection Method ◽  
Active Power Filter ◽  
Active Power ◽  
Harmonic Detection ◽  
Harmonic Current ◽  
Transient Time ◽  
Power Filter ◽  
Hybrid Active Power Filter

<p>The accuratedetermination of the load harmonic current is one of the important factors, it decides to effect of harmonic filtering and reactive power compensation for Hybrid Active Power Filter. The p-q harmonic detection method has been widely used in determining the harmonic currents of Hybrid Active Power Filter. However, when using this method, the dynamic response of Hybrid Active Power Filter in the transient period will have a large transient time and overshoot whenever the load changes abruptly. Therefore, in this paper an improved p-q harmonic current detection method based on fuzzy logic is proposed, which aims to reduce the overshoot and transient time in transient duration of Hybrid Active Power Filter. In order to compare the dynamic response of conventional and improved p-q harmonic detection methods, simulation results have demonstrated that: the proposed method has a shorter response time, the magnitude of the supply current in the transient time is smaller and the overshoot of the fundamental active and reactive power components is very small. This has a practical significance that contributes to the stability of the Hybrid Active Power Filter system</p>

Research on New Hybrid Active Power Filter

2011 ◽  
Vol 201-203 ◽  
pp. 1512-1516
Author(s):  
Jing Jie Peng ◽  
Xiao Ping Fan ◽  
Gang Li
Keyword(s):  
High Voltage ◽  
Reactive Power ◽  
Active Power Filter ◽  
Active Power ◽  
Direct Control ◽  
Pass Filter ◽  
Power Filter ◽  
Hybrid Active Power Filter ◽  
Harmonic Currents ◽  
High Voltage System

A new hybrid active power filter (NHAPF) and its corresponding controlling method are proposed in the paper, which can be applied in high voltage system. The topology structure of NHAPF is given and its compensating principle is described. The corresponding controlling method is a power direct control, which need not the lower pass filter and improve the performance of detecting precision and velocity. Simulating results show that the feasibility and validity of the compensated system. Harmonic currents and reactive power are compensated well.

THREE-PHASE FOUR-WIRE PV-BASED SERIES HYBRID ACTIVE POWER FILTER FOR POWER QUALITY IMPROVEMENT

2014 ◽  
Vol 23 (10) ◽  
pp. 1450144 ◽  
Author(s):  
M. VIJAYAKUMAR ◽  
S. VIJAYAN
Keyword(s):  
Reactive Power ◽  
Experimental Studies ◽  
Active Power Filter ◽  
Boost Converter ◽  
Active Power ◽  
Solar Irradiation ◽  
Voltage Source ◽  
Power Filter ◽  
Hybrid Active Power Filter ◽  
Three Phase

This paper proposes a photovoltaic (PV)-based three-phase four-wire (3P4W) series hybrid active power filter (SHAPF) it comprises of a series active power filter (SAPF) and an LC shunt passive filter. The proposed system eliminates both the current and voltage harmonics and compensates reactive power, neutral current and voltage interruption. A SAPF demands a source of energy for compensating the voltage sag/swell. This system introduces a new topology for SHAPF utilizes the PV with DC–DC boost converter as a source of DC power for SAPF. The compensation current reference evaluation is based on the twin formulation of the vectorial theory of electrical power theorem with fuzzy logic controller (FLC). The PV array/battery managed DC–DC boost converter is employed to step up the voltage to meet the DC bus voltage requirement of the three-leg voltage source inverter (VSI). The foremost benefit of the proposed system is that, it will provide uninterrupted compensation for the whole day. This system utilizes the renewable energy accordingly saves the energy and shares the load during the solar irradiation available. The simulation and experimental studies are carried out to validate the effectiveness of the proposed PV-SHAPF.

Research on the Hybrid Active Power Filter

2011 ◽  
Vol 383-390 ◽  
pp. 610-614
Author(s):  
Wang Fang ◽  
Xiao Dan Cui ◽  
Jing Wang
Keyword(s):  
Power System ◽  
Reactive Power ◽  
Active Power Filter ◽  
Reactive Power Compensation ◽  
Active Power ◽  
Power Filter ◽  
Hybrid Active Power Filter ◽  
Source Impedance ◽  
Passive Power ◽  
Simulation Results

Passive power filter (PF) has problems that source impedance may strongly affect the filtering characteristics and cause system resonance in power system applications. Hybrid active power filter (HAPF) can improve the performance of passive filter and realize harmonics restraint and reactive power compensation in big power situation. In this paper, the principle of HAPF is analyzed, the model of HAPF is established, and the simulation results are discussed.

scholarly journals Investigation on the Work Efficiency of the LC Passive Harmonic Filter Chosen Topologies

Electronics ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 896
Author(s):  
Chamberlin Stéphane Azebaze Mboving
Keyword(s):  
Reactive Power ◽  
Active Power Filter ◽  
Active Power ◽  
Work Efficiency ◽  
Electrical System ◽  
Shunt Active Power Filter ◽  
Case Examples ◽  
Power Filter ◽  
Hybrid Active Power Filter ◽  
Harmonic Filter

The use of passive harmonic filters (PHFs) in an electrical system is in most cases for the fundamental harmonic reactive power compensation and harmonics mitigation. In comparison to other filters applied to improve the power quality, such as the shunt active power filter or hybrid active power filter, their main advantages are the low investment costs and easy applicability in low-, medium-, and high-voltage electrical systems. However, their installation demands a deep analysis of the electrical system as well as a thorough knowledge of the topology to be installed. Their work efficiency is influenced by the parameters of the electrical system (grid, load, and filter itself) which must be well-known before installation. The aim of this paper is to present an investigation on the work efficiency of the LC passive harmonic filter chosen topologies. The PHFs are investigated in the frequency domain through their impedance versus frequency characteristics as well as in the time domain through an electrical system. A comparative study between filters is also considered. The investigations on the case examples of PHFs are based on simulations and some laboratory studies are also presented.

scholarly journals Modeling and Analysis of a Multilevel Parallel Hybrid Active Power Filter

2016 ◽  
Vol 6 (3) ◽  
pp. 976-981 ◽  
Author(s):  
T. Demirdelen ◽  
R. I. Kayaalp ◽  
M. Tumay
Keyword(s):  
Reactive Power ◽  
Control Method ◽  
Active Power Filter ◽  
Active Power ◽  
Harmonic Compensation ◽  
Modeling And Analysis ◽  
Control Approach ◽  
Power Filter ◽  
Hybrid Active Power Filter ◽  
Parallel Hybrid

This paper introduces a new control approach for the Multilevel Parallel Hybrid Active Power Filter (M-PHAPF) which can compensate harmonics and variable reactive power demand of loads by controlling the DC link voltage adaptively in medium voltage applications. By the means of this novel control method, M-PHAPF obtains a better and more efficient performance in the compensation of harmonics and reactive power compared to when using conventional control methods. The performance and stability of the proposed method are verified with a simulation model realized in PSCAD/EMTDC with different case studies. The simulation results demonstrate that harmonic compensation performance meets the requirements of the IEEE-519 standard.

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