Results 211 to 220 of about 219,549 (265)

Decentralized Sliding Mode voltage control in DC microgrids

2017 American Control Conference (ACC), 2017
The present paper deals with the design of a decentralized control scheme that relies on advanced control strategies of Sliding Mode (SM) type to regulate the voltage in islanded Direct Current (DC) microgrids. More specifically, the model of an islanded DC microgrid composed of several Distributed Generation units (DGus) interconnected according to an
Michele Cucuzzella, Simone Rosti, Alberto Cavallo, Antonella Ferrara   +3 more
openaire   +1 more source

Third order sliding mode voltage control in microgrids

2015 European Control Conference (ECC), 2015
In this paper, we propose a robust voltage control scheme for microgrids based on a suitable designed third-order sliding mode (3-SM) controller. The use of 3-SM allows to reject matched disturbances and unmodeled dynamics, due to the presence of a voltage-sourced-converter (VSC) as interface with the main grid.
Michele Cucuzzella, Gian Paolo Incremona, Antonella Ferrara   +2 more
openaire   +2 more sources

The electrothermal macromodel of voltage mode PWM controllers for SPICE

Microelectronics Journal, 2006
In the paper the problem of modelling PWM voltage mode controllers for SPICE is considered. SPICE library isothermal macromodel and a new form of the authors' electrothermal (including selfheating) macromodel of SG3525A controller are presented and compared. To illustrate the correctness and usefulness of these macromodels, some results of measurements
Janusz Zarebski, Krzysztof Górecki
openaire   +1 more source

Simple and Digital Implementation of PI Controller Used in Voltage-Mode Control

2018 10th International Conference on Electronics, Computers and Artificial Intelligence (ECAI), 2018
This paper contains a solution for a digital PI controller implemented in a synchronous Buck converter used in Constant Voltage configuration. In such applications, a digital PI controller can replace a traditional PI compensation network made with analog components.
Andrei Platon, Sergiu Oprea, Adriana Florescu, Stefan George Rosu   +3 more
openaire   +1 more source

Parabolic-Modulated Sliding-Mode Voltage Control of a Buck Converter

IEEE Transactions on Industrial Electronics, 2018
Conventional hysteresis-modulation-based sliding-mode (SM) controller exhibits a varying switching frequency. Existing SM controllers for achieving constant-switching-frequency operation often have complicated structures and/or are less straightforward to design to meet different steady state, transient, and loading requirements.
Wenlong Qi, Sinan Li, Siew-Chong Tan, S. Y. Ron Hui   +3 more
openaire   +3 more sources

INSTABILITIES IN DIGITALLY CONTROLLED VOLTAGE-MODE SYNCHRONOUS BUCK CONVERTER

International Journal of Bifurcation and Chaos, 2012
In this paper, instabilities and bifurcation behavior in a DC–DC digitally controlled voltage-mode synchronous buck converter (SBC) are studied. The bifurcation diagram of the system under a proportional-integral (PI) compensation is presented. Following the system mathematical description in the continuous time domain, the z-domain pulse transfer ...
Dongsheng, Yu, Herbert, H. C. Iu, Hao, Chen, Rodriguez, E., Alarcón Cot, Eduardo José, El Aroudi, Abdelali   +5 more
openaire   +2 more sources

"Bipolar-mode" transistors on a voltage-controlled scheme

IEEE Transactions on Electron Devices, 1981
A buried-gate vertical JFET (BVFET) operated under forward gate bias shows saturating or nonsaturating drain current characteristics simply by Changing the channel cross section area. BVFET with a proper channel cross section has similar characteristics to a "bipolar-mode" SIT (BSIT) or a depleted base transistor (DBT). A generalized picture is derived
T. Tamama, M. Sakaue, Y. Mizushima
openaire   +1 more source

The incremental voltage control mode for PWM regulators

PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference, 2003
The possibility of direct connections in parallel and inherent overload protection, which are typical advantages of current-controlled pulsewidth-modulated (PWM) regulators, are obtained by another control technique that is based on the sensing of the voltage waveform across a capacitor ( Delta V mode).
P. Maranesi, L. Pinola, V. Varoli
openaire   +1 more source

Design of a Robust Controller for a Voltage-mode Controlled Buck Converter

2020 IEEE 17th India Council International Conference (INDICON), 2020
Linear controller-based voltage-mode control finds widespread application in the power management industry due to its ease of control. A linear controller is designed based on the average small-signal model of the converter which ignores the effect of converter's parasitics, dead-time, etc.
Sayan Bhattacharya, Amit Kumar Singha, Aparajita Sengupta   +2 more
openaire   +1 more source

Sliding mode voltage control in current mode PWM inverters

PESC `92 Record. 23rd Annual IEEE Power Electronics Specialists Conference, 2003
The author discusses the application of sliding-mode control techniques to DC-AC converters, driven by dual current mode PWM modulators that maintain constant frequency operation and provide output current clipping facilities. Sliding-mode control is advantageous when the inverter is designed to perform as a switching power operational amplifier, or ...
openaire   +1 more source