Asymptotic Slow-Scale Stability Boundary of PFC AC–DC Power Converters: Theoretical Prediction and Experimental Validation

Aroudi, Abdelali El; Orabi, Mohamed; Haroun, Reham; Martínez-Salamero, L.

doi:10.1109/tie.2010.2090832

Cited by 45 publications

(24 citation statements)

References 22 publications

(26 reference statements)

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“…Equation (8) illustrates that the sampling gain uncompensated in continuous domain introduces a pair right half plane (RHP) conjugate zeros at half switching frequency, at where a resonance peak occurs in the current loop and results in harmonic oscillation. The slope compensation could weaken this resonance peak and stabilize the current loop.…”

Section: Slope Compensation Controlmentioning

confidence: 99%

“…(6) and (19), the system nonlinear model is built using Matlab. Utilizing stroboscopic sampling method, 8 the bifurcation diagram of Boost PFC converter is obtained. Assumed every parameter is consistent with that in Sec.…”

Section: Feed-forward Slope Compensation Controlmentioning

confidence: 99%

“…Even after recti¯cation, there are still various harmonics, bifurcation, chaos, and other nonlinear behaviors. [1][2][3] In recent years, the studies on nonlinear phenomena in power factor correction (PFC) converter are gradually increasing, but most of them are based on the existing research results of DC-DC converters, [4][5][6][7][8][9][10] and focus on the causes of bifurcation and chaos. In addition, most models use the simple open loop or monocyclic control, which limits their practical application.…”

Section: Introductionmentioning

confidence: 99%

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Feed-Forward Slope Compensated PFC for Chaos Control

Yang

Zhu

et al. 2015

J CIRCUIT SYST COMP

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Based on the dual-loop control peak current mode power factor correction (PFC) converter, a feed-forward slope compensation method is proposed, which could regulate the compensated slope real-time and suppress the loop perturbation, thus controlling chaos of the system for better stability. A dual-loop Boost PFC model with the feed-forward slope compensation is built to analyze the nonlinear phenomena in system, and the corresponding circuit structure is presented. The chaos control ability of the feed-forward slope compensation is studied theoretically, and the relation of compensated slope and feed-forward signal is deduced, as well as slope stability conditions. The simulation and measured results show that this method could e®ectively suppress system bifurcation and chaos phenomena, and improve the system working range and dynamic response speed, and eliminate the in°uence on system stability for without compensated, under compensated, and over compensated.input disturbance-rejection, as well as the fast response speed. So it is necessary and signi¯cant to study the dual-loop PFC converter to control its nonlinear phenomena. However, the nonlinear behaviors are di±cult to control for uncertain, which probably result in unpredictable system working state, and give rise to a high total harmonic distortion (THD) and poor power factor (PF). Now the proposed system chaos control methods include parameter perturbation control, feedback control, pole control, and so on. Although most are easy to realize, their complex control modes often restrict the application. The slope compensation control provides an e®ective solution. The reasonable compensation network could simplify the system to be¯rst-order, thus ameliorating the bifurcation and chaos phenomena. But the¯xed compensated slope existing probably causes over compensation or under compensation, and¯nally reduces the applicable working voltage range and transient response speed. To make up for the drawbacks above, a feedforward signal is introduced in the slope compensation, which regulates the loop gain according to real-time disturbance, and reduces the bandwidth requirements of feedback control loop, thereby decreasing or eliminating the noise interference,¯nally inhibiting chaos.Based on the dual-loop peak current mode Boost PFC, a feed-forward slope compensation circuit is proposed to control chaos, with the system model. The simulation and measured results verify the validity and feasibility of the proposed circuit. The feed-forward slope compensation provides PFC converter an e®ective way to control nonlinear phenomena and improve stability, as well as better working range and dynamic response.The rest of this paper is organized as follows. In Sec. 2, PFC model in dual-loop peak current mode with the slope compensation is presented. In Sec. 3, the feedforward slope compensation control is proposed, with the actual circuit. In Sec. 4, the simulation and measured results are performed to verify the e®ectiveness of this work. The conclusions and discussion a...

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Section: Slope Compensation Controlmentioning

confidence: 99%

Section: Feed-forward Slope Compensation Controlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Feed-Forward Slope Compensated PFC for Chaos Control

Yang

Zhu

et al. 2015

J CIRCUIT SYST COMP

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“…The output voltage is sensed for the outer voltage loop to regulate the output voltage. Sensing input voltage is also required for the generation of the desired current reference [3], [4] and the feedforward terms [5], [6]. In [7] and [8], some compensation loops are added to the multiloop control to improve the PFC performance for motor drive applications.…”

Section: Multiloop Interleaved Control For Three-level Switch-mode Rementioning

confidence: 99%

Multiloop Interleaved Control for Three-Level Switch-Mode Rectifier in AC/DC Applications

Chen

Liao

2014

IEEE Trans. Ind. Electron.

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In this paper, multiloop interleaved control (MIC) is proposed, and it is combined with conventional multiloop control and the interleaved pulsewidth modulation scheme. The average behavior of the interleaved three-level switch-mode rectifier (SMR) behaves similar to the conventional boost-type SMR even though two capacitor voltages are imbalanced. It implies that conventional multiloop control can be applied to the interleaved three-level SMRs to achieve the desired power factor correction function. The proposed MIC is digitally implemented and verified in a field-programmable-gate-array-based system. The provided results show that MIC stably works and the capacitor voltages are eventually balanced during the system operations.Index Terms-Interleaved control, three-level boost switchmode rectifier (SMR).

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“…Although the most of works are focused on analysis of the input current spectrum [4], [5] and dynamic processes in PFC [6], [7], unfortunately, there is quite limited amount of works devoted to the problems of PFC subharmonic stability [8], [9], [10]. In some articles these issues have not got enough attention [11].…”

Section: Introductionmentioning

confidence: 99%

A subharmonic stability of power factor correctors with dual-loop control system

Denisov

Stepenko

2015

2015 IEEE 35th International Conference on Electronics and Nanotechnology (ELNANO)

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This work is devoted to investigation of the power factor corrector's (PFC) dual-loop control systems. Two control systems of PFC with different structures were studied: with main voltage and main current feedbacks. A subharmonic stability analysis has been performed for PFC based on conventional boost converter. However, the expression for input current of the storage inductor can be used for PFC based on zero-current switching quasi-resonant boost converter. The stability condition at the main subharmonic frequency has been formulated. The calculation results of the voltage change rate at the current loop input and factor of pulsations have been presented. The PFC subharmonic stability margin has been assessed and condition for choosing the reference voltage amplitude has been proposed.

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Asymptotic Slow-Scale Stability Boundary of PFC AC–DC Power Converters: Theoretical Prediction and Experimental Validation

Cited by 45 publications

References 22 publications

Feed-Forward Slope Compensated PFC for Chaos Control

Feed-Forward Slope Compensated PFC for Chaos Control

Multiloop Interleaved Control for Three-Level Switch-Mode Rectifier in AC/DC Applications

A subharmonic stability of power factor correctors with dual-loop control system

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