Time-Varying Compensation for Peak Current-Controlled PFC Boost Converter

Wei, Cheng; Song, Jiuxu; Li, Hong; Guo, Youguang

doi:10.1109/tpel.2014.2334296

Cited by 45 publications

(15 citation statements)

References 23 publications

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“…Hence, a self-compensation technique was proposed in [27], which can provide a more accurate current limiting capacity and does not require an external slope generator. In [28], a time-varying ramp compensation technique was presented to eliminate the fast-scale instability of a PCM-controlled power factor correction (PFC) boost converter. In [29], adaptive ramp compensation was proposed to improve the robustness of the conventional ramp compensation technique.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Stability in a PCM-Controlled Boost Converter with the Target Period Orbit-Tracking Method

et al. 2019

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Thee peak-current-mode (PCM) control strategy is widely adopted in pulse width-modulated (PWM) DC-DC converters. However, the converters always involve a sub-harmonic oscillating state or chaotic state if the active duty ratio is beyond a certain range. Hence, an extra slope signal in the inductor-current loop is used to stabilize the operation of the converter. This paper presents a new technique for enlarging the stable range of PCM-controlled DC-DC converters, in which the concept of utilizing unstable period-1 orbit (UPO-1) of DC-DC converters is proposed and an implementation scenario based on the parameter-perturbation method is presented. With the proposed technique, perturbations are introduced to the reference current of the control loop, and the converters operating in a chaotic state can be tracked, and thus be stabilized to the target UPO-1. Therefore, the stable operating range of the converters is extended. Based on an example of a PCM-controlled boost converter, simulations are presented as a guide to a detailed implementation process of the proposed technique, and comparisons between the proposed technique and techniques in terms of ramp compensation are provided to show the differentiation in the performance of the converter. Experimental results in the work confirm the effectiveness of the proposed technique.

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Section: Introductionmentioning

confidence: 99%

Improvement of Stability in a PCM-Controlled Boost Converter with the Target Period Orbit-Tracking Method

et al. 2019

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“…On the other hand, the converter may operate in the discontinuous conduction mode (DCM) due to variation in onload parameter, which is discussed in [6], [7]. Due to this DCM feature during reduced loading, dead-zone arises close to the zero-current crossing and this results crossover distortion and fast scale instability [8]. Furthermore, this restrains property execrably sluggish dynamic response in converter system.…”

Section: Introductionmentioning

confidence: 99%

“…Henceforth, many control techniques have been developed in recent years to limit the dead-zone close to the zero-crossing region, however, the dynamic performance of the converter under load fluctuation is not apparently deliberated. A timevarying compensation approach with the peak current control scheme is suggested in [8] to resolve fast scale instability due to zero-current dead-zone, whereas, transient loading state isnt considered in this to examine the dynamic performance of the system. Again, Sliding Mode Control (SMC) scheme is implemented to interleaved boost PFC system in [9] and a better solution is achieved to resolve the issue concerned to load variation, but the performance under light loading scenario is not evaluated.…”

Section: Introductionmentioning

confidence: 99%

“…On the contrary, a time-demolishing trial-and-error regulation practice is required in fuzzy-logic systems, and furthermore, its design is purely heuristic [36]. Again, the research on performance improvement of the PFC converter system in the current decade [3], [8], [9], [10] is most encouraging and motivating, which have been deliberated earlier.…”

Section: Introductionmentioning

confidence: 99%

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Fixed-Frequency Sliding-Mode Control Scheme Based on Current Control Manifold for Improved Dynamic Performance of Boost PFC Converter

Mohanty

Panda

2017

IEEE J. Emerg. Sel. Topics Power Electron.

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This paper deals with the switching regulation of Boost PFC converter under large and quick load fluctuation to ensure tight output voltage regulation and unity power factor (UPF) at line side. In this sense, Sliding Mode Control (SMC) technique based on current controlled manifold is proposed. Input current distortion is limited even during light loading condition. Also, the dead-zone issue related to light load near to the crossover of input current is resolved in this paper. To execute the proposed SMC algorithm, equivalent control approach is used for the selection of sliding coefficients, ensuring the system stability. The control operation manipulates both inner SM current controller to frame input current and an outer PI controller to maintain desired regulated output voltage. For experimental validation, a 500W, 390V/DC boost PFC prototype, controlled by dSPACE 1104 signal processor is framed. The presented simulation and experimental results infer that the proposed converter controller offers UPF, tight output voltage regulation and %THD (Total Harmonic Distortion) standard even under fluctuating load behaviour. In this paper, the performance of the proposed control scheme is experimentally verified with different load behaviour and external references, which explains the robustness and effectiveness of the proposed system.

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“…Usually, the boost converter is commonly used in PFC applications [1]- [9]. For low power applications, the discontinuous conduction mode (DCM) and critical mode (CRM) operations are commonly used because of their zero current switching (ZCS) characteristic and easy implementation [10]- [20].…”

Section: Introductionmentioning

confidence: 99%

Line Current Distortion Compensation for DCM/CRM Boost PFC Converters

Chen

2016

IEEE Trans. Power Electron.

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This paper proposes a line current distortion compensation method, which is a fusion of the conventional variable on-time (VOT) control and the average current mode (ACM) control, for DCM/CRM boost PFC converter with zero current switching (ZCS)/ zero voltage switching (ZVS)/ valley switching (VS)/ switching frequency limitation (SFL) functions. In this paper, the mathematical analyses of the line current distortion for the DCM/CRM boost PFC converter with ZCS/ZVS/VS/SFL functions are also derived to explain the causes of the line current distortion. In order to increase efficiency, the ZVS/VS/SFL functions are needed but the line current will be further distorted. To compensate the distorted line current, the ACM-based VOT (ABVOT) control for the DCM/CRM boost PFC converter is proposed. In addition, the constant-on-time-based noise-immunity S/H method is proposed to replace the multiplier, which is always needed for the conventional ACM-based control. The performance of the proposed ABVOT control with S/H method will be demonstrated by simulation and experiment results.Index terms -power factor correction (PFC), variable on-time (VOT), average current mode (ACM), multiplierless.

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Time-Varying Compensation for Peak Current-Controlled PFC Boost Converter

Cited by 45 publications

References 23 publications

Improvement of Stability in a PCM-Controlled Boost Converter with the Target Period Orbit-Tracking Method

Improvement of Stability in a PCM-Controlled Boost Converter with the Target Period Orbit-Tracking Method

Fixed-Frequency Sliding-Mode Control Scheme Based on Current Control Manifold for Improved Dynamic Performance of Boost PFC Converter

Line Current Distortion Compensation for DCM/CRM Boost PFC Converters

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