Proceedings ArticleDOI
A fast algorithm for the time-domain simulation of switched-mode piecewise-linear systems
Ronald C. Wong,Harry A. Owen,Thomas G. Wilson +2 more
- pp 281-296
TLDR
An algorithm is presented for the efficient and accurate simulation of switched-mode piecewise-li near systems, a subclass of which includes regulated energy-storage dc-to-dc converters that leads to significant improvements in computational efficiency and accuracy.Abstract:
An algorithm is presented for the efficient and accurate simulation of switched-mode piecewise-li near systems, a subclass of which includes regulated energy-storage dc-to-dc converters. Three key features of the new algorithm that lead to significant improvements in computational efficiency and accuracy are: (1) a state-transition-matrix table-lookup scheme to solve differential equations describing the system, (2) a modified binary-search strategy to obtain an initial estimate of the instant at which the system topology switches, and (3) a quadratic extrapolation for the accurate final determination of the switching instant. The computational efficiency of a program using the new algorithm is demonstrated by comparing its execution time with that of a program employing a standard fixed-step-size integration algorithm. The accuracy of the new algorithm is verified by comparing results obtained from the simulations with results obtained analytically, and by comparing data from the simulation of two different regulated converters with data measured experimentally.read more
Citations
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Journal ArticleDOI
Simulation of power electronic and motion control systems-an overview
TL;DR: In this article, the authors present a user's perspective of simulation in power electronic and motion control systems and provide a brief overview of the widely used simulation programs along with the challenges in modeling the semiconductor devices.
Proceedings ArticleDOI
Circuit-oriented discrete-time modeling and simulation for switching converters 1
TL;DR: A generalized discrete-time modeling and simulation program, applicable to any PWM, resonant or quasi-resonant converter, has been developed and performs time-domain simulation by using state-transition equations with a fast-convergence algorithm for topological changes.
Journal ArticleDOI
A unified discrete-time state-space model for switching converters
Jose M. Burdio,A. Martinez +1 more
TL;DR: In this article, a unified nonlinear state-space model for arbitrary switching converters is presented, which uses discrete-time modeling of switches and is valid for any electric circuit composed of ideal switches (externally or internally controlled), RLC elements and energy sources.
Journal ArticleDOI
A fast-decoupled method for time-domain simulation of power converters
TL;DR: In this article, the authors present a new method for calculating switching time from an accurate and explicit form of the switching condition, hence the step-by-step search for the switching instant can be greatly simplified.
Journal ArticleDOI
Large-signal modeling and simulation of switching DC-DC converters
TL;DR: In this paper, a nonlinear continuous formulation procedure for large-signal analysis of switching DC-DC converters is presented, which can be applied in either of the two conduction modes, and it is easily programmed for computer-aided analysis with small simulation time.
References
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Journal ArticleDOI
Low-Frequency Characterization of Switched dc-dc Converters
G. W. Wester,R.D. Middlebrook +1 more
TL;DR: Novel conclusions include the dependence of effective circuit component values upon switch duty ratio and the existence of a real positive zero in certain transfer functions.
Book
Linear Control System Analysis and Design: Conventional and Modern
John D'Azzo,Constantine Houpis +1 more
TL;DR: This book instills the basic principles of feedback control essential to all specialty areas of engineering and provides thorough coverage of root locus, frequency response and state feedback techniques.
Proceedings ArticleDOI
Sampled-data modeling of switching regulators
Arthur R. Brown,R.D. Middlebrook +1 more
TL;DR: A new linear, small-signal modeling technique, called sampled-data modeling, succeeds, where state-space averaging fails, in predicting the subharmonic instability in current-programmed regulators, and is shown to be of significant usefulness in the design of high-performance switching regulators.
Proceedings ArticleDOI
Low-frequency characterization of switched DC-DC converters
G. W. Wester,R.D. Middlebrook +1 more
TL;DR: In this paper, the buck, boost, and buck-boost types of switched dc-dc converters are represented by approximate continuous models and simple analytical expressions in terms of the circuit components are derived for the characteristic transient and frequency responses of timeaveraged (continuous) power-stage models for use in designing and understanding the behavior of corresponding switched power stages.
Proceedings ArticleDOI
Large-signal modelling and analysis of switching regulators
TL;DR: A large-signal switching regulator model is derived, and prominent features of the transient response are determined, and computer-generated transient waveforms are obtained.