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 use of adaptive estimator based on the flux linkage algorithm gives an opportunity to eliminate the speed sensor and rotor position sensor and to reduce the mass and dimensions parameters of the drive. Estimator provides the actual values of back electromotive force of the synchronous machine and that makes it possible to apply permanent magnet synchronous machine efficiently. The article presents...
This paper considers scheme of primary AC power supply system for autonomous objects. As well this paper presents the characteristic features of power supply system, its structural model and the simulation results are given.
This paper is devoted to analysis of the state-of-the-art in electronic component base of class Space. The review covers integrated circuits for designing digital semiconductor converter control system with a high-frequency PWM control. For this purpose modern chip digital controllers, digital signal processors, field programmable gate arrays, PWM controllers, base matrix crystals (BMC) and ASIC were...
This paper considers spectral mathematical model of the AC-AC converter scheme realized by switching functions method. Simulation results in steady state operation mode are presented in this paper.
This paper considers scheme of primary power generation system with low output voltage. Total power of this system is 3.5 kW. Paper also presents configuration and experimental results for one channel of power generation system.
Growth of a number of different electrical equipment on board of autonomous objects requires the creation of new high reliability power supply systems operating even in an emergency case. This paper presents a new version of implementation of the uninterruptible power system (UPS) based on parallel operation of AC/DC and DC/DC converters. Such structure allows to supply the system from two independent...
This paper considers one of the methods for controlling the current source inverter, which uses previously generated control signals for the voltage source inverter. Describes the instructional method for converting these signals with minimization of switching losses. Analysis results are verified with simulation modeling of control systems in the software PowerSIM, as well as experimental investigations...
This paper considers an example of a control system for semiconductor converters with pulse-width modulation (PWM). Also the structure of the control system and an example of the proposed system implementation for a DC/DC converter are outlined.
The advances of digital control systems require a new approach for design and development of power electronics devices. Modern simulation methods allow creating control systems of power converters based on their real microprocessor implementation. Thus, a digital control algorithm of device can be completely recreated, debugged and verified in the model. This paper proposes the control algorithm for...
In this paper detailed analysis of the electromagnetic processes in the new multizone current source inverter was carried out, resulting in the analytical ratios for the qualitative evaluation of the load currents, depending on the relative resistance of the load, as well as an external characteristics of converter by using the method of differential equations algebraization was obtained [1]. The...
This paper considers spectral mathematical model of the AC-AC converter scheme realized by switching functions method. Simulation results in steady state operation mode are presented.
This paper considers scheme of the AC — AC converter and briefly describes its control system. In this paper also presents the results of mathematical modeling of the system.
This paper proposes a novel inverter for four-wire systems. The number of used transistors is reduced in a Z-source inverter with neutral point as compared with known schemes of Z-source inverter for four-wire systems. It increases reliability and efficiency. The scheme operation is verified by simulation.
This paper considers scheme of the AC - AC converter and briefly describes its power management features. Simulation results are presented in order to prove the effectiveness of the proposed system.
The Dual Z-Source inverter scheme with improved quality of the produced voltages is considered. Simulation results of the converter as a part of the aircraft variable-speed/ constant frequency power generation system are presented. The considered scheme is compared to that consisting of a Pulse-Width Modulated (PWM) voltage source inverter and a dc-dc boost converter.
This paper touches the problem of development modern semiconductor converter of the electrical energy for mining electrical equipment supply. The converteris builtin line with multilevel topology. It is be able to overcome fundamental disadvantages of the existing systems. Also, the paper presents experimental results.
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.