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In this paper, the energy conservation law in physics is introduced into the control prototype of boost converters. Firstly, the input and output energy and the energy changes in the reactive components in each switching cycle are analysed. Then an energy balance control (EBC) method is designed based on the energy conservation law, which is independent of converter work modes, continuous conduction...
In this paper, a novel predictive direct power control (PDPC) strategy is proposed for three-phase AC/DC converters, which is based on a straightforward regulation of instantaneous active and reactive power. The converter controlled by the proposed strategy realizes operations without line-side voltage sensors by introducing the virtual flux (VF) concept and a grid voltage estimation method based...
Analog-to-digital conversion plays an essential role in all kinds of electronics systems, including signal processing, communications and storage. In particular, interpolated flash ADC has been widely used in high-speed systems requiring very high sampling speed. Obviously, practical ADC design is very challenging, which has been dominated by experiences and trial-and-error skills. This is true to...
A new combined AC/DC-coupled output averaging technique for input amplifier design of flash analog-to-digital converters (ADC) is presented. The new offset averaging design technique takes full advantages of traditional DC-coupled resistance averaging and AC-coupled capacitance averaging techniques to minimize offset-induced ADC nonlinearities. Circuit analysis allows selection of optimum resistance...
An accurate model for a permanent magnet synchronous generator (PMSG) is important for the design of a high-performance PMSG control system. The performance of such control systems is influenced by PMSG parameter variations under real operation conditions. In this paper, the electrical parameters of a PMSG (the phase resistance, the phase inductance and the rotor permanent magnet (PM) flux linkage)...
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