A nonlinear control strategy for three-phase seven-level Shunt Active Power Filter

Haddad, Mohamed; Ktata, S.; Rahmani, S.; Al‐Haddad, Kamal

doi:10.1109/sta.2015.7505198

Cited by 4 publications

(4 citation statements)

References 18 publications

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“…Figure (6) shows the simulated waveforms of the source current and corresponding source voltage before compensation (1/10 of vsa (t)).…”

Section: Current Harmonics Compensationmentioning

confidence: 99%

“…The conventional structure used is the voltage source inverter (VSI). But this topology is limited for low power applications [6]. Several multilevel inverter topologies are being used for shunt active filter applications, but some practical problems like power circuit packaging, switching circuit complexity and dynamic voltage stress have restricted the number of inverter levels to 3 or 5 [7].…”

Section: Introductionmentioning

confidence: 99%

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Control Scheme Influence on the Performance of Shunt Active Power Filter based on Five-level NPC Inverter in Steady and Transient Conditions

CHENNAI

2024

AJSS

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This paper presents an investigation on the performance of shunt active power filter (Shunt APF) systems based on five-level neural point clamped (NPC) inverter in steady and transient conditions adopting a fuzzy control scheme. The shunt APF is operated as a current source connected in parallel with the non-linear loads to inject compensates current harmonics into the AC source. The multi-level inverters have gained considerable interests in last year’s. Five-level inverter is recommended in medium and high voltage applications; their advantages are low harmonic distortions, low switching losses, low electromagnetic interference, low voltage stress of power semiconductors and low acoustic noise. Secondly fuzzy logic has been widely used in various industrial applications. To benefit from these advantages a shunt active power filter based on five-level (NPC) inverter using fuzzy control scheme is presented in this work. To identify the reference currents, synchronous detection method (SMD) is adopted. Proportional integral voltage controller is used to maintain the dc voltage across capacitor constant and reduce inverter losses. The simulation is performed using MATLAB-Simulink software and SIMPOWERSYSTEM toolbox. The obtained results in steady and transient states illustrate the performances and the effectiveness of the proposed shunt APF system.

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“…Figure (6) shows the simulated waveforms of the source current and corresponding source voltage before compensation (1/10 of vsa (t)).…”

Section: Current Harmonics Compensationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Control Scheme Influence on the Performance of Shunt Active Power Filter based on Five-level NPC Inverter in Steady and Transient Conditions

CHENNAI

2024

AJSS

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“…The comparative study between the proposed topology and some previous topologies [28]- [30] is presented in Table 2. The comparison shows that a nine level inverter can be realized with ten IGBT transistors for each phase.…”

Section: Comparative Analysis With Previous Studiesmentioning

confidence: 99%

A New Structure of the Nine Level Inverter Used as Active Power Filter with a Reduced Number of Swiches

Chouaf

Saad

2018

IJPEDS

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In the scope of this work, a new structure of the nine level inverter is proposed using a reduced number of power switches. This inverter is used as a shunt active power filter to compensate harmonic currents and the reactive power. The modeling and simulation of the proposed model were carried out in Matlab/Simulink environment. The simulation results show that the filtering performances were achieved despite the reduction of the switches number. It was found that the current waveform becomes purely sinusoidal with a reduction in the harmonic distortion rate (THD) to 2.68%. This implies good compensation of both harmonics and reactive power with a power factor closer to unity. Reducing the switches number allows reducing the switching losses and lowering the duration of the applied voltage supported by the semiconductors. The proposed topology also allows to get simple structure of the inverter with a reduced cost.

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“…The most power structures used in APF is the traditional two levels converters. The use of this topology is limited in low power applications, due to the power handling ability of semiconductors [6]. Several multilevel inverter topologies are being used for shunt active filter applications, but some practical problems like power circuit packaging, switching circuit complexity and dynamic voltage stress have restricted the number of inverter levels to 3 or 5 [7].…”

Section: Introductionmentioning

confidence: 99%

Impact of Converter Topology on the Shunt Active Power Filter Systems Efficiency

CHENNAI

2023

AJSS

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This paper presents the performance of shunt active power filters (Shunt APFs) which can compensate harmonic currents generated by no-linear load based on five and seven-level neural point clamped (NPC) inverters. Multilevel inverters are currently being investigated and used in several industrial applications. Their advantages include the capability to reduce the harmonic content and decrease the voltage or current ratings of the semiconductors. On the other side, fuzzy techniques are successfully employed in various industrial applications; they represent a good alternative to traditional control systems. To benefit of all these advantages an efficient control scheme for five and seven-level Shunt APF based on multi-carrier pulse width modulation (MC-PWM) and fuzzy control approaches are adopted in this work. The fuzzy controller is designed to improve compensation capability of shunt APF by adjusting the error using a fuzzy rule. The control strategy to identify the current reference uses synchronous detection method (SMD), this technique is easy to implement and achieves good performances. The numerical simulation results carried with MATLAB-Simulink and SimPowerSystems Toolbox show the effectiveness of the proposed systems and confirm the superiority of the seven-level shunt APF compared to five-level configuration system.

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A nonlinear control strategy for three-phase seven-level Shunt Active Power Filter

Cited by 4 publications

References 18 publications

Control Scheme Influence on the Performance of Shunt Active Power Filter based on Five-level NPC Inverter in Steady and Transient Conditions

Control Scheme Influence on the Performance of Shunt Active Power Filter based on Five-level NPC Inverter in Steady and Transient Conditions

A New Structure of the Nine Level Inverter Used as Active Power Filter with a Reduced Number of Swiches

Impact of Converter Topology on the Shunt Active Power Filter Systems Efficiency

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