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The objective of this paper is to propose the development of a multiinput dc–dc converter (MIC) family, which is composed of isolated and/or nonisolated dc–dc converters. By analyzing five basic isolated dc–dc converters, four isolated pulsating voltage source cells and three isolated pulsating current source cells are generated. Moreover, a semiisolated multiinput converter (S-MIC) for hybrid PV/wind...
A breadboard model of the store of kinetic energy with an asynchronized electric machine and a cascade frequency converter in a rotor circuit is created. The converter is executed on the basis of a single-phase blocks connected to the network through transformers and connected from the rotor consistently in each phase. Transformation blocks contain single-phase active rectifiers and voltage inverters...
The paper presents the topology and functioning of the model-based laboratory system to study the power electronic converters structure and execution and to evaluate their different duty modes of operation. Detailed description of the models of ac/dc, dc/ac, ac/ac and dc/dc virtual power converters and their auxiliary circuits are given. Learning possibilities and restrictions of the described software...
Simulation tools for learning power electronics are grounded aimed to study the circuit structure and execution and to evaluate the working possibilities in different duty modes of operation. The power converter estimation factors, features and characteristics are evaluated. Detailed explanation of the models of AC/DC, DC/AC, AC/AC AND DC/DC power converters and their control circuits is given. The...
According to high power factor and accurate outputs DC voltage which are requirements of three-phase rectifier control as known, the research establishment of one outer voltage loop and two inner current loops as double-loop control system. The outer voltage loop could resist disturbance to achieve accurate output; the inner current loop based on space vector control to achieve high power factor....
A nonlinear load is a factor which effects inverterpsilas output voltage waveform in single-phase inverter system. Considering nonlinear characteristic, the load with uncontrollable single-phase rectifier with capacitor filter was modeled. The nonlinear model of the inverter system was obtained based on that. The model was tested to be correct through simulation analysis. Fuzzy control was applied...
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