Journal ArticleDOI
A Simple Method to Improve the Dynamic Response of Single-Phase PWM Rectifiers
R. Ghosh,G. Narayanan +1 more
TLDR
Low input current distortion, fast voltage-loop response, and improved dynamic response against line and load disturbances are demonstrated experimentally on a 300-W digitally controlled boost rectifier operating at a switching frequency of 100 kHz.Abstract:
A single-phase boost rectifier system with conventional low-bandwidth voltage loop exhibits poor dynamic response. A simple method is presented to improve the dynamic response of the rectifier without affecting its steady-state performance. A fast voltage controller is used to improve the dynamic response of the rectifier. The increased low-frequency ripple at the output of the voltage controller is filtered out using a new filter. Design methodology for the voltage loop is presented. The filter is simple enough for analog and digital implementations. Low input current distortion, fast voltage-loop response, and improved dynamic response against line and load disturbances are demonstrated experimentally on a 300-W digitally controlled boost rectifier operating at a switching frequency of 100 kHz.read more
Citations
More filters
Journal ArticleDOI
A Novel PCCM Boost PFC Converter With Fast Dynamic Response
Fei Zhang,Jianping Xu +1 more
TL;DR: A novel pseudo-continuous conduction mode (PCCM) boost power-factor-correction (PFC) converter and its corresponding control strategy are proposed and the results show that the dynamic response of the PCCM boost PFC converter is significantly faster than the existing boost P FC converter.
Journal ArticleDOI
Steady-State Analysis and Modeling of Power Factor Correctors With Appreciable Voltage Ripple in the Output-Voltage Feedback Loop to Achieve Fast Transient Response
TL;DR: In this article, the effect of the amplitude of the relative voltage ripple on the control signal and its phase lag angle on the output of an active power factor corrector (PFC) was studied.
Journal ArticleDOI
Unity-Power-Factor Control Based on Precise Ripple Cancellation for Fast-Response PFC Preregulator
TL;DR: In this paper, a ripple estimation/cancellation network consisting of an amplitude tuner and a phase shifter based on switched-resistor circuits is proposed and verified experimentally on a 200-W boost power-factor preregulator.
Journal ArticleDOI
Pulse Train Control Strategy for CCM Boost PFC Converter With Improved Dynamic Response and Unity Power Factor
TL;DR: Pulse train (PT) control strategy for the boost power factor correction (PFC) converter operating in the continuous conduction mode (CCM) is proposed and studied and the dynamic response is significantly improved.
Journal ArticleDOI
Stability Analysis of AC–DC Full-Bridge Converters With Reduced DC-Link Capacitance
TL;DR: In this paper, the authors show that the conventional linear time-invariant (LTI) model may not represent the real converter behavior for reduced capacitance and/or faster controllers, leading to poor system performance or even instability.
References
More filters
Journal ArticleDOI
State-of-the-art, single-phase, active power-factor-correction techniques for high-power applications - an overview
Milan M. Jovanovic,Yungtaek Jang +1 more
TL;DR: The merits and limitations of several PFC techniques used in today's network-server and telecom power supplies to maximize their conversion efficiencies are discussed, and the effect of recent advancements in semiconductor technology on the performance and design considerations of PFC converters is discussed.
Journal ArticleDOI
Simple digital control improving dynamic performance of power factor preregulators
TL;DR: In this article, the authors present the practical implementation of a fully digital control for boost power factor preregulators (PFPs), which is simple and fast and provides a significant improvement in the system's dynamic performance compared to the usual analog control techniques.
Journal ArticleDOI
A family of continuous-conduction-mode power-factor-correction controllers based on the general pulse-width modulator
Zheren Lai,Keyue Smedley +1 more
TL;DR: In this article, a family of constant-switching-frequency pulse-width-modulated controllers for single-phase power-factor-correction (PFC) circuits that operate at continuous-conduction mode (CCM) is presented.
Journal ArticleDOI
Digitally controlled boost power-factor-correction converters operating in both continuous and discontinuous conduction mode
TL;DR: The reduction of the harmonic distortion of the input current and the increase of the power factor are demonstrated by experiments on a 1-kW boost PFC converter.
Proceedings ArticleDOI
Design of feedback loop in unity power factor AC to DC converter
TL;DR: In this paper, a nonlinear regulation-band circuit that has a favorable combination of properties is presented, including their tradeoffs as to power factor, output voltage transient regulation, and cost of implementation.