Proceedings ArticleDOI
Predictive Average Current Control Considering Non-Idealities for a Boost PFC Converter
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TLDR
A predictive average current control law based on triangular modulation considering the converter non-idealities, time variation of waveforms and computation delays is proposed and validated with simulation and experimental results.Abstract:
The design of the current control loop in a boost PFC converter plays a significant role due to the large signal variations in the input waveforms. A predictive average current control law based on triangular modulation considering the converter non-idealities, time variation of waveforms and computation delays is proposed and validated with simulation and experimental results. A digital method for the boost inductance value estimation is also proposed which could be used with predictive current control laws.read more
Citations
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Journal ArticleDOI
A Computationally Simple Predictive CCM Average Current Controller With Nearly Zero Tracking Error for Boost PFC Converter
TL;DR: A computationally simple predictive continuous conduction mode average current controller based on the concept of moving averages for the boost PFC converter and achieves nearly zero tracking error in the average inductor current is proposed.
Journal ArticleDOI
A Discrete Average Current Mode Control CCM Boost PFC Converter with Hybrid Pulse Train Modulation and Dual Edge Modulation
TL;DR: In this paper , a discrete average current mode (ACM) control method with hybrid modulation is proposed for boost power factor correction (PFC) converters operating in continuous conduction mode (CCM) to achieve both fast dynamic response and high power factor (PF).
Journal ArticleDOI
A predictive Algorithm for Boost PFC Operating in Mixed Conduction Mode
Junhao Niu,Hongtang Miao +1 more
TL;DR: In this paper , an optimized predictive current control is proposed, which calculates the duty cycle in CCM and DCM separately in advance, and then adopts the corresponding optimal duty cycle according to the detected inductor current conduction mode.
Journal ArticleDOI
A Discrete Average Current Mode Control CCM Boost PFC Converter With Hybrid Pulse Train Modulation and Dual Edge Modulation
TL;DR: In this article , a discrete average current mode (ACM) control method with hybrid modulation was proposed for boost power factor correction converters operating in continuous conduction mode to achieve both fast dynamic response and high power factor(PF).
References
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Journal ArticleDOI
Predictive digital current programmed control
TL;DR: In this paper, the authors explored predictive digital current programmed control for three basic converters: buck, boost, and buck-boost, and found that for each variable of interest (valley, peak or average current) there is a choice of the appropriate pulse-width modulation method to achieve predictive current control without oscillation problems.
Journal ArticleDOI
A digital power factor correction (PFC) control strategy optimized for DSP
TL;DR: In this paper, a predictive algorithm for digital control power factor correction (PFC) is presented, where all of the duty cycles required to achieve unity power factor in one half line period are calculated in advance by digital signal processors (DSP).
Journal ArticleDOI
Digital Average Current-Mode Control of PWM DC–DC Converters Without Current Sensors
Ying Qiu,Helen Liu,Xiyou Chen +2 more
TL;DR: A digital average current-mode control technique for pulsewidth modulation dc-dc converters which only rely on voltage sampling, based on a two-loop control structure to achieve an accurate voltage regulation and derived for three basic converters: buck, boost, and buck-boost.
Journal ArticleDOI
A Simple Digital DCM Control Scheme for Boost PFC Operating in Both CCM and DCM
Abstract: Digital average current controllers for boost power factor correctors (PFCs) are usually designed for continuous conduction mode (CCM). However, discontinuous conduction mode (DCM) appears in the inductor current near the zero crossings of the input current at light loads, resulting in input current distortion. It is caused by inaccurate average current values obtained in DCM and by the linear CCM PFC controller that is unable to ensure input current shaping in DCM whereby the converter exhibits nonlinear characteristic. This paper proposes a simple digital DCM control scheme that is achieved with minimal changes to the CCM average current control structure. It is mathematically and computationally simple. The result of all arithmetic operations in the proposed current control loop to obtain the desired control output can be achieved in a single clock cycle, whereas other DCM control schemes require multiple clock cycles. Good input current shaping is achieved in both CCM and DCM with the proposed CCM-DCM digital controller.
Proceedings ArticleDOI
Digital control with improved performance for boost power factor correction circuits
Stéphane Bibian,H. Jin +1 more
TL;DR: Results show that, even with a very low control rate, system specifications can be met using the proposed technique.