Three level buck converter with improved dynamic performance using linear-non linear control
نویسندگان
چکیده
Dynamic response of a converter plays an important role in many applications which change load in a rapid manner, especially in PoL(Point of load)applicat ions. Here a new method for improving the dynamic response of a converter is presented. Here separate control schemes are implemented during steady state as well as transient load conditions. A three level buck converter topology with fast transient response is discussed here. This topology does not require a soft start up circuitry for three level buck converter. Simulation model is done in Matlab/Simulink and the result shows a great improvement in dynamic response of the system.
منابع مشابه
High performance Cuk converter considering non-linear inductors for photovoltaic system applications
The Cúk converter, which has voltage buck and boost ability, offers high flexibility as an interface device for solar panels. In addition, current ripple can be more reduced because of two input and output inductors at both sides. This paper presents a new application of current-variable inductors in a Cúk converter that reduces the size and capacity of storage elements. Because of two inductor...
متن کاملNonlinear Controller Design of Reducing Converter and Minor Changes to Load
In this paper, some Contents are presented to simulate the nonlinear converter of the Buck converter. In general, the Buck converter and studies done on it and a control method to obtain the average output voltage for equality with an optimum level, Provided control method includes a series of advantages and disadvantages. To improve disadvantages And also a better result on the output The line...
متن کاملA New Non-linear Control of the Four-Leg Inverter with Decoupled Model and Fast Dynamic Response for PV Generation Systems
Distributed generation (DG) will play an important role in future power generation systems, especially in stand-alone applications. Three phase four-leg inverter is a well-known topology which can be used as an interface power converter for DGs. Thanks to the fourth leg to provide the neutral path, the four-leg inverter is able to supply balanced loads as well as unbalanced loads. In this paper...
متن کاملModel Reduction-Based Control of the Buck Converter Using Linear Matrix Inequality and Neural Networks
A new method to control the Buck converter using new small signal model of the pulse width modulation (PWM) switch is introduced. The new method uses recurrent supervised neural network to estimate certain parameters of the transformed system matrix [ A~ ]. Then, linear matrix inequality (LMI) optimization is used to obtain the permutation matrix [P] so that system transformation {[ B~ ], [ C~ ...
متن کاملAn Improved Control Method Based on Modified Delta-Sigma Modulator for Buck Converter
This paper proposes an improved control method based on modified Delta-Sigma Modulator (DSM) to enhance transient response and improve harmonic contents of buck DC-DC converter. The main advantages of the proposed method are improving the output voltage frequency spectrum, correction of the output voltage harmonic contents and sideband harmonics, reduction of switching noise peaks at the output...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2014