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.
This paper describes an energy management strategy for an electric vehicle (EV). The proposed EV architecture contains a pack of the batteries which presents the energy source and a pack of the supercapacitors (SC) used as power source. The pack of the batteries produces the necessary energy to move forward the vehicle while the pack of the SC produces the lacking power in acceleration and in braking...
A flexible DC micro-grid model is proposed, which is suitable for grid-connected renewable energy and energy storage. The complete circuit topology and its corresponding control strategy are given, which can make sure energy reliability, and can automatically achieve a reasonable power distribution. In addition, based on the theory of Virtual Generator (VG), a complete control strategy of each interface...
This paper presents the realization of wind turbine to test its characteristics at the laboratory level using separately excited direct current (DC) motor. The wind profile which almost imitates the actual wind speed during transients is applied to the developed Wind Turbine Emulator (WTE). The DC motor images the wind turbine characteristics in the transiet regio of wind by applying the controlled...
The hybridization of batteries and super-capacitors (SCs) is prevalent in the study of electrical powered vehicles. SCs, having high specific power, are able to afford large amount of energy in a short period, and thus have been used to satisfy transient load power demands and capture the braking power. In this paper, the SC, also able to afford large number of charge/discharge cycles, is used to...
This paper presents a single ended primary inductor converter (SEPIC) as a power factor correction (PFC) converter which is operated in voltage control mode for the speed control of a permanent magnet brushless DC motor (PMBLDCM) driven air-conditioner (Air-Con). The proposed converter combines the PFC and DC link voltage control in single stage and uses only one controller. The PFC controller uses...
The paper presents a control strategy for a wind energy conversion system (WECS) for an optimal extraction of power from the wind. The topology of the system consists of a permanent magnet synchronous generator (PMSG), a diode bridge rectifier, a hybrid dc-dc converter which lowers the dc voltage, a supercapacitor and an inverter. However, the grid side inverter is not subject to this paper research...
Renewable energy sources have focused a special attention in wind energy conversion systems, where the goal is maximal power extraction. This paper presents an evaluation of the linear controllers eigen structure assignment, linear quadratic regulator, and the robust loop shaping design procedure actuating on a small wind energy conversion system with a permanent magnet synchronous generator, the...
In this paper, a braking energy recovery system based on super-capacitor was presented. The method use super-capacitor and the conventional braking resistance constitute a new braking unit to realize the regenerative energy recovery, when braking, braking energy will be stored in the super-capacitor by a DC/DC converter. meanwhile, the conventional braking resistance still keep in system to ensure...
A dual-voltage 42 V/14 V Power-Net system of an ISG HEV is proposed, modeled and simulated in Simulink in this paper in order to analyze the change of the voltage of the dual-voltage power system, SOC of the battery and so on under some transient conditions as the engine starting, the transition from electric to generating mode for ISG motor and the sudden change of electrical loads when acceleration...
A fuzzy controller for closed loop control of DC drive fed by DC-DC converter (Chopper) is designed and presented in this paper. This system has been designed to have two loops with an inner ON/OFF current controller and an outer fuzzy speed controller. The later is used to change the duty cycle of the converter and thereby, the voltage fed to the DC series motor regulates its speed. The performance...
A fuzzy controller for various types of DC motor fed by DC/DC converter is designed and presented in this paper. The fuzzy controller is designed in such a way that it can be implemented in a micro-controller or DSP processor based embedded system. The system designed has two loops with an inner ON/OFF current controller and an outer fuzzy speed controller. The later is used to change the duty cycle...
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.