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In this paper the structure and principle work of electronic transformer scheme with intermediate elements of DC were discussed. Through simulation modeling time diagrams of this scheme were obtained. Assessment of the harmonic distortion input current and output voltage was held. Approximate calculation of the efficiency of the electronic transformer was carrying out.
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...
In this paper dynamic properties of resonant converter with ZCS (Zero Current Switching) were proposed. Closed-loop control system and “control action — output voltage” transfer function was obtained.
This paper presents the impact of sampling control signals and cross coupling compensation in the active rectifier converter. The relations describing the nature of the influence of the compensation effects considering the features of a digital implementation of the control system were derived. Frequently, in the many others studies a closed-loop system with the compensation of the cross coupling...
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...
The growth of power consumption of autonomous objects requires creation of new powerful and energy-efficient converters. This paper describes a new version of the autonomous power generation system alternating current and constant frequency with better energy-efficiency based on three-level converters. The results of computer simulation in the software package POWERSIM 9.0 are presented in the work...
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