The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The high efficiency power management IC (PMIC) with switching device is presented in this paper. PMIC is controlled with PWM control method in order to have high power efficiency at high current level. Dynamic threshold voltage CMOS (DT-CMOS) with low on-resistance is designed to decrease conduction loss. The threshold voltage of DT-CMOS drops as the gate voltage increases, resulting in a much higher...
A system of 1-phase semi-converter fed battery charging circuit meant for being supplied from a self-excited induction generator is analysed with extinction angle control (EAC) scheme. Several modes of operation of this scheme with continuous as well as discontinuous load current have been identified and the input and output voltage and current wave forms for each one of them have been depicted. Starting...
A long transmission line needs controllable series as well as shunt compensation for power flow control and voltage regulation. This can be achieved by suitable combination of passive elements and active FACTS controllers. In this paper, series passive compensation and series active compensation provided by a static synchronous series compensator (SSSC) are considered. This paper presents investigation...
This article presents a new current-mode squarer based on MO-CCTA (multiple output current conveyor transconductance amplifier). The circuit description is very simple, its construction consists of merely 2 MO-CCTAs. Without external passive elements, the proposed circuit is then suitable for IC architecture. The PSPICE simulation and experimental results are depicted, and agree well with the theoretical...
A long transmission line needs controllable series as well as shunt compensation for power flow control and voltage regulation. This can be achieved by suitable combination of passive elements and active FACTS controllers. In this paper, series passive compensation and shunt active compensation provided by a static synchronous compensator (STATCOM) connected at the electrical center of the transmission...
In power electronics efficiency improvement is constantly being sought out through venues such as improved topologies or improved devices. Series loaded resonant (SLR) DC-DC converter is a type of soft-switching topology widely known for providing improved efficiency. This paper investigates the efficiency and transient performance of SLR when a new type of diode called Super Barrier RectifierTM is...
Isolation of a faulted segment, from either side of a fault, in a radial feeder that has several converter interfaced DGs is a challenging task when current sensing protective devices are employed. The protective device, even if it senses a downstream fault, may not operate if fault current level is low due to the current limiting operation of converters. In this paper, a new inverse type relay is...
An interleaved PV stand-alone dc bus system, equipping with incremental conductance (IC) derived MPPT and bi-directional dc-to-dc converter (BDC), manipulated by an energy management control (EMC) is proposed. The EMC can adaptively provide interleave control for pumping energy from PV panel without intermittence and maintain well load regulation through a bi-directional dc-to-dc converter (BDC).
Switched mode power supplies (SMPS) have become an indispensable part of modem electronic systems. In this paper, a generalized MATLAB/SIMULINK modeling techniques is presented. The proposed techniques have been successfully integrated into SMPS design course at Lunghua University, Taiwan. The main objective of the course is to teach final year undergraduate students and first year Master's students...
This paper presents of harmonics flow analysis with the 12-pulse converters of HVDC link which are harmonic voltage source converter (VSC) in the AC-DC systems. A new fast numerical technique is used with the harmonic domain algorithm to calculate the harmonic impedances of AC-DC converters. The VSC-based HVDC can be used to control terminal bus voltage and balance power exchange among the VSC converters...
As wind turbine (WT) generation has been explosively introduced worldwide, the problems in the wind farm has been brought up. In this paper any kind of wind farm configurations and connections, include AC transmission system and VSC based HVDC transmission system are considered and the general tendency in lightning overvoltage at wind farm and lightning overvoltages of valve in VSC based HVDC based...
This paper describes a digital proportional-integral-derivative (PID) controller technique applied to the DC-DC buck converter. The converter is modelled using a state space averaging technique. Due to the non-linear of the power converter, the PID controller is designed to simplify the compensation of the DC-DC converter. The control algorithm is implemented in digital signal processor (DSP) TMS320F2812...
This paper describes a fully digital controlled switching mode DC-DC converter based on digital V2 control algorithm. V2 control in analog or digital realization can provide faster transient response compare to the conventional voltage or current-mode control. However, the reported digital V2 control scheme suffers from steady state oscillation problem. In this paper, we proposed a new digital V2...
A flywheel energy storage system stores the electrical energy through a fast-spinning flywheel. When necessary, the kinetic energy of the flywheel is converted into the electrical energy by a power converter. In this paper, we present a design procedure of a micro flywheel energy storage system in which an effort is made to optimize not only the components but also the system. A power converter is...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.