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Proceedings ArticleDOI

Adaptive Sliding mode based Loss Free resistor for Power Factor Correction Application

TL;DR: A novel notion of Adaptive Sliding mode based loss free resistor (ASLFR) is proposed, to achieve the dual purpose of power factor correction and voltage regulation and results have been demonstrated to support the theoretical claims.
Abstract: This paper proposes a novel notion of Adaptive Sliding mode based loss free resistor (ASLFR), to achieve the dual purpose of power factor correction and voltage regulation. The scheme serves itself as an efficient solution for single-stage PFC circuits applications. The work also provides a qualitative analysis to establish the expediency of the proposed ASLFR over the existing SLFR technique. A boost topology is chosen for implementation, to showcase the effectiveness of the scheme. Relevant results have been demonstrated to support the theoretical claims.
Citations
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Journal ArticleDOI
TL;DR: This paper provides a comprehensive review of the control approaches and the power-decoupling topologies to mitigate the ripple problem in the single-phase inverters, its solutions, and discusses open challenges yet to be addressed.
Abstract: This paper provides a comprehensive review of the control approaches and the power-decoupling topologies to mitigate 2ω-ripple problem in the single-phase inverters, its solutions, and discusses open challenges yet to be addressed. The cause and effects of 2ω-ripple problem and its solution based on the passive and active power-decoupling techniques are discussed. A subcategory of the active power-decoupling technique nominated as the control-oriented compensation technique is reviewed in detail, this technique can achieve the ripple-mitigation at the source through the control but not necessarily adds extra circuit or active filter to the system. The control-oriented compensation techniques can be applied in the two-stage DC-DC-AC converters and the single-stage inverters having a front-end control capability with the H-bridge such as in the quasi-switched-boost inverters. The merits and associated challenges of these techniques are listed and summarized in a tabular form. Finally, a conclusive discussion with open challenges is presented.

39 citations


Cites background from "Adaptive Sliding mode based Loss Fr..."

  • ...The ripple also reflects in AC-DC power conversion [3]....

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Journal ArticleDOI
28 Feb 2020
TL;DR: The modular three-phase ac–dc converter using single-phase isolated Ćuk rectifier modules for charging of electric vehicles is discussed, and the adopted topology serves as a fitting single-stage solution for balanced three- phase systems.
Abstract: In this article, the modular three-phase ac–dc converter using single-phase isolated C uk rectifier modules for charging of electric vehicles is discussed. The converters are designed and analyzed for the continuous conduction mode (CCM). This article is based on a new concept of adaptive sliding-mode-based loss-free resistor (ASLFR). ASLFR is a control scheme, which allows dual aim of power factor correction along with tight voltage regulation; hence, the adopted topology serves as a fitting single-stage solution for balanced three-phase systems. Complete theory is developed for the application, and the effectiveness of the scheme is well-established. Various studies to confirm the robustness of the system to any load and line variation are carried out. Moreover, a qualitative analysis is also made to show the expediency of the proposed ASLFR. Simulation as well as experimental studies are claimed theoretically.

8 citations


Cites methods from "Adaptive Sliding mode based Loss Fr..."

  • ...[26] for single-phase, class D converters, is presented for the modular three-phase PFC application using Ćuk converters....

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Journal ArticleDOI
TL;DR: The ASLFR is used to achieve the dual purpose of harmonics-free rectification along with excellent system response under load and line transients and is illustrated for power-factor correction (PFC) applications.
Abstract: The emulation of virtual resistance finds various applications in the power processing industry. This paper proposes a novel notion of adaptive sliding mode based loss free resistor (ASLFR). This is achieved by allowing the input power of the power-out power-in ( POPI ) system to vary, in order to accommodate the load demands. In this paper, the concept is illustrated for power-factor correction (PFC) applications. The ASLFR is used to achieve the dual purpose of harmonics-free rectification along with excellent system response under load and line transients. The scheme serves itself as an efficient single-stage PFC solution. A generic mathematical formulation of the scheme is presented, which can be used for different converters. Then on, a boost topology, operating in continuous conduction mode, is chosen to demonstrate theoretical developments and to showcase the effectiveness of the scheme. The robustness of the proposed controller to any line or load variation is established. A fast voltage recovery with almost no undershoot/overshoot is achieved at transients by using the proposed controller. Additionally, a qualitative analysis is provided to demonstrate the expediency of the proposed ASLFR. The theoretical claims are well supported by simulation as well as experimental results.

7 citations


Cites background from "Adaptive Sliding mode based Loss Fr..."

  • ...The preliminary result of the paper has been presented in [22]....

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DOI
TL;DR: In this paper , a model-free control (MFC) strategy of single-phase ac/dc converters is proposed to realize power factor correction and output voltage regulation of single phase converters, and the closed-loop performance of MFC systems is analyzed in frequency domain via classical linear control theory.
Abstract: Conventionally, the benchmark proportional-integral control method is implemented to realize power factor correction and output voltage regulation of single-phase ac/dc converters. However, the performance is deteriorated due to the influence of uncertainties and disturbances, e.g., periodic input voltage and load variation. Concerning this problem, this article proposes a model-free control (MFC) strategy of single-phase ac/dc converters. The MFC principle is revisited and a frequency response analysis is presented for the algebraic estimators of uncertainties and disturbances. Consequently, the closed-loop performance of MFC systems is allowed to be analyzed in frequency domain via classical linear control theory. Based on the theoretical results, the model-free current and voltage control systems are synthesized in detail to achieve control objectives of the converter. Simulation results demonstrate the performance of MFC systems in reference tracking and disturbance rejection. The feasibility and validity of the presented MFC strategy for single-phase boost ac/dc converters is also confirmed experimentally as compared to the benchmark scheme.
References
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Journal ArticleDOI
TL;DR: In this article, the fundamental power processing properties of switching converter circuits are modeled using generalized power-conservative (POPI) networks, and the application of the gyrator to network two voltage sources and the use of the loss-free resistor as a unity power factor rectifier are described.
Abstract: The fundamental power-processing properties of switching converter circuits are modeled using generalized power-conservative (POPI) networks. Depending on the application, it may be most appropriate to model the first-order converter properties as those of an ideal transformer, gyrator, loss-free resistor, or other POPI network. These basic functions can be obtained either through selection of a topology that naturally possesses the desired characteristics or by addition of a suitable control network. Some well-known converter topologies are shown to behave naturally as gyrators, loss-free resistors, and constant power networks. The application of the gyrator to network two voltage sources and the use of the loss-free resistor as a unity power factor rectifier are described. >

131 citations


"Adaptive Sliding mode based Loss Fr..." refers methods in this paper

  • ...Following the similar principle, a seminal concept of the Loss Free Resistor (LFR) was firstly introduced in [1], [2] and a mathematical model of the same as a two-port switching network, whose input port consists of a purely resistive impedance and it transfers, ideally, all the power, absorbed at the input, to the output, was presented in [3]....

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Journal ArticleDOI
TL;DR: In this article, the realization of loss-free elements with resistive I-V characteristics is achieved by controlling the parameters of loss free two-ports that have a transformer or gyrator matrix.
Abstract: The realization of loss-free elements with resistive I-V characteristics is presented. The realization is achieved by controlling the parameters of loss-free two-ports that have a transformer or gyrator matrix. The power absorbed by the element is transferred to the source, so that, in principle, no losses occur. The use of such elements is expected to be of importance in power electronics, power conversion systems, gas discharge devices, control systems, robotics, and microwave circuits. Such an element was realized using a switched-mode circuit technique. It was applied to the stabilization of a gas laser system. The circuit replaced a conventional resistor that dissipated power up to 40 W. The replacement circuit dissipated only 10 W (equivalent to a conversion efficiency of 75%). >

92 citations


"Adaptive Sliding mode based Loss Fr..." refers methods in this paper

  • ...Following the similar principle, a seminal concept of the Loss Free Resistor (LFR) was firstly introduced in [1], [2] and a mathematical model of the same as a two-port switching network, whose input port consists of a purely resistive impedance and it transfers, ideally, all the power, absorbed at the input, to the output, was presented in [3]....

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Journal ArticleDOI
26 Jun 1989
TL;DR: In this paper, the synthesis of a loss-free element with resistive characteristics in power processing systems is discussed, based on the control of a two port which has a transformer or gyrator matrix.
Abstract: Applications of loss-free elements with resistive characteristics in power processing systems are discussed. The synthesis of this kind of element is based on the control of a two port which has a transformer or gyrator matrix. Both of the controlled two ports can be realized by means of switched-mode circuits. The loss-free resistor can be applied to the stabilization of unstable systems, for damping oscillatory waveforms, and for balancing of power flow in AC-DC conversion systems. This kind of element has been applied to the stabilization of a gas laser system. It replaced a conventional resistive element which was applied for this purpose. >

74 citations

Journal ArticleDOI
TL;DR: In this article, a systematic procedure to synthesize loss-free resistors (LFRs) based on slidingmode control (SMC) of DC-DC switching converters is presented.

61 citations


"Adaptive Sliding mode based Loss Fr..." refers background or methods in this paper

  • ...The presented work draws its inspiration from the concept of Sliding mode based LFR (SLFR) which was introduced in [8] and then on extended in [9]....

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  • ...As pointed out in [8], generally LFRs are achieved leveraging the inherent nature of buck-boost and its derived family of converters operating in DCM....

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  • ...This section gives a brief overview of the synthesis of the Sliding mode based Loss-free resistor (SLFR), adopted in the referred work [8]....

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  • ...The authors in [8], have proposed boost based SLFR for shaping the input current to follow the input voltage....

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Proceedings ArticleDOI
21 Oct 2010
TL;DR: The method of the equivalent control is illustrated in the design of a two-loop control for the voltage regulation of a buck-boost converter by means of PSIM simulations.
Abstract: A review of the state of the art in the sliding-mode control of DC-to-DC switching converters is presented. The method of the equivalent control is illustrated in the design of a two-loop control for the voltage regulation of a buck-boost converter. The theoretical predictions are validated by means of PSIM simulations. Prospective applications of the method reported are also discussed.

50 citations


"Adaptive Sliding mode based Loss Fr..." refers methods in this paper

  • ...The application of SMC reduces the order of the system to first order and ensures the over all stability of the system at the same time [11]....

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