Journal ArticleDOI
Recent Developments in Digital Control Strategies for DC/DC Switching Power Converters
TLDR
In this article, an overview of recent advances in digital control of low-to medium-power dc/dc switching converters is presented, including applications such as online efficiency optimization, controller autotuning and specialized nonlinear control.Abstract:
In this paper, an overview of recent advances in digital control of low- to medium-power dc/dc switching converters is presented. Traditionally, such dc/dc converters have been almost exclusively controlled through analog electronics methods. However, with the steadily decreasing cost of ICs, the feasibility of digitally controlled dc/dc switching converters has increased significantly. This paper outlines some of the existing design challenges related to digital control and reviews a sample of recently proposed solutions. In addition, present-day research pertaining to applications such as online efficiency optimization, controller autotuning, and specialized nonlinear control is presented. Such applications demonstrate the true advantages and potential of digital control as their complexity prevents practical implementation in the analog domain.read more
Citations
More filters
Journal ArticleDOI
Analysis, Modeling, and Implementation of a Multidevice Interleaved DC/DC Converter for Fuel Cell Hybrid Electric Vehicles
TL;DR: In this paper, a multidevice structure with interleaved control is proposed to reduce the input current ripples, the output voltage ripples and the size of passive components with high efficiency compared with the other topologies.
Journal ArticleDOI
Reliability of Candidate Photovoltaic Module-Integrated-Inverter (PV-MII) Topologies—A Usage Model Approach
Souhib Harb,Robert S. Balog +1 more
TL;DR: In this article, the authors proposed a new methodology for calculating the mean time between failure (MTBF) of a photovoltaic module-integrated inverter (PV-MII).
Journal ArticleDOI
Design and Implementation of Three-Phase Two-Stage Grid-Connected Module Integrated Converter
TL;DR: In this paper, a three-phase dc-ac converter with two-stage zero voltage switching (ZVS) operation for grid-tied PV system is proposed which will reduce cost per watt, improve reliability, and increase scalability of MW-class solar farms through the development of new solar farm system architectures.
Journal ArticleDOI
Power Flow Stabilization and Control of Microgrid with Wind Generation by Superconducting Magnetic Energy Storage
Marcelo G. Molina,P.E. Mercado +1 more
TL;DR: In this paper, the authors proposed the use of an improved superconducting magnetic energy storage (SMES) controller for the stabilization and control of the power flow of wind-hybrid MGs.
Journal ArticleDOI
Microcontroller-Based Peak Current Mode Control Using Digital Slope Compensation
TL;DR: In this article, a discrete time controller with digital slope compensation was proposed to achieve peak current mode control of a buck converter using only a single-chip microcontroller to achieve desirable cycle-by-cycle peak current limiting.
References
More filters
Journal ArticleDOI
Quantization resolution and limit cycling in digitally controlled PWM converters
TL;DR: In this paper, the presence of steady-state limit cycles in digitally controlled PWM converters is discussed, and conditions on the control law and quantization resolution for their elimination are suggested.
Journal ArticleDOI
High-frequency digital PWM controller IC for DC-DC converters
TL;DR: In this paper, a complete PWM controller IC for high-frequency switching converters is described, including an A/D converter, compensator, and digital pulse-width modulator.
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
Architecture and IC implementation of a digital VRM controller
TL;DR: The architecture and IC implementation of a digital PWM (DPWM) generation module, using a ring-oscillator-multiplexer scheme, is discussed and experimental results from a prototype VRM and a partial controller IC implementation are presented.
Journal ArticleDOI
Modeling of Quantization Effects in Digitally Controlled DC–DC Converters
TL;DR: In this paper, the authors derived both static and dynamic models that include quantization effects and used them to explain the origins of limit-cycle oscillations in dc-dc converters with a single voltage feedback loop.