A novel PFC controller and selective harmonics suppression

Liu, Bin; Jia, Wu; Li, Jun; Dai, Ji Yang

doi:10.1016/j.ijepes.2012.07.044

Cited by 14 publications

(8 citation statements)

References 6 publications

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“…Consequently, the obtained controllers are generally not backed by formal stability analysis and their performances are derived from simulations results. The second category of methods is limited to linear controllers [5,6]. As a matter of fact, optimal performances are not guaranteed with linear controller, on a wide range variation of the operation point, due to the nonlinear nature of the controlled system.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Saturation Impact on Three-Phase Shunt Active Power Filters

Chihab¹,

Ouadi²

2024

RE&PQJ

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The problem of controlling three-phase shunt active power filters (SAPF) is addressed in presence of nonlinear loads. Previous works generally design control for SAPF based on standard models that assume the involved magnetic coil to be linear. In reality, the magnetic characteristics of these components are nonlinear (especially in the presence of large magnetic flux density in the ferromagnetic core). In this paper, a new oriented control model for SAPF-load system, taking into account for the nonlinearity of coil characteristics, is developed. The control objective is twofold: (i) compensating for the current harmonics and the reactive power absorbed by the nonlinear load; (ii) regulating the inverter DC capacitor voltage. To this end, based on the new model, a nonlinear controller is developed, using the backstepping technical design. It is therefore able to ensure good performances over a wide range of variation of the load current. The performances of the proposed adaptive controller are formally analyzed using tools from the Lyapunov stability and the averaging theory. The performances of the proposed controller is illustrated through simulation

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Section: Introductionmentioning

confidence: 99%

Magnetic Saturation Impact on Three-Phase Shunt Active Power Filters

Chihab¹,

Ouadi²

2024

RE&PQJ

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“…These rectifiers operate based on power switches and have one or more closed-loop control systems [9]. Controlled rectifiers can regulate PF, reduce THD i and control DC voltage at the load [8,10,11].…”

Section: Introductionmentioning

confidence: 99%

Modeling and development of a bridgeless PFC Boost rectifier

Mejía-Ruiz

Muñóz-Galeano

López-Lezama

2017

Rev. Fac. Ing. Univ. Antioquia

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ABSTRACT:This paper proposes a model of the bridgeless PFC (Power Factor Correction) boost rectifier for control purposes based on an averaged small-signal analysis. From circuital laws, four operation modes are defined and explained, ensuring a relationship of physical variables in the converter. Based on the proposed model, two-loop cascade control structures composed of Proportional-Integral (PI) lineal controllers are proposed. Design consideration for dimensioning reactive elements is included, providing minimum values for their inductance and capacitance. Implementation of a laboratory prototype of 900 W and experimental results are presented to validate and reaffirm the proposed model. Experimental results demonstrate that the use of the bridgeless PFC boost converter model allows the Power Factor (PF) to be elevated up to 0.99, to reduce the THD i (Total Harmonic Distortion of the Current) to 3.9% and to control the DC voltage level on output. Compliance of standards of power quality EN 61000-3-2 (IEC 1000-3-2) are experimentally verified.

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“…The other application is PFC circuits. In these circuits, the proposed technique can be included in the internal current control loop to effectively suppress the specific current harmonics [34]. In this paper, only brief information is provided for HCAs.…”

Section: Introductionmentioning

confidence: 99%

Application of the harmonic control arrays technique to single‐phase stand‐alone inverters

Karbasforooshan

Monfared

Dogruel

2016

IET Power Electronics

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This study proposes the adaption of the harmonic control array (HCA) technique to control a single-phase standalone inverter system. The HCA method is recently proposed as an efficient scheme to control the systems with periodic references or disturbances. The HCA appropriately adjusts the harmonic components of the control signal to obtain a zero steady-state error. Since the signals and parameters involved in this method are complex valued, a discrete time implementation is presented for applying the method through a digital platform. The design procedure of the controller parameters are also presented by details. To confirm the theoretical achievements, experimental results for the prototype system are presented in this study. The results demonstrate the effectiveness of the proposed control scheme. Inverter modelThe power and control circuits of a single-phase voltage-source stand-alone inverter are shown in Fig. 1. According to this figure, the power circuit consists of a full-bridge inverter, a LC-type IET Power ElectronicsResearch Article

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A novel PFC controller and selective harmonics suppression

Cited by 14 publications

References 6 publications

Magnetic Saturation Impact on Three-Phase Shunt Active Power Filters

Magnetic Saturation Impact on Three-Phase Shunt Active Power Filters

Modeling and development of a bridgeless PFC Boost rectifier

Application of the harmonic control arrays technique to single‐phase stand‐alone inverters

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