A three-phase isolated AC-DC-DC power supply is widely used in the industrial field due to its attractive features such as high-power density, modularity for easy expansion and electrical isolation. In application scenarios, it can be realized by multiple modules with Input-Parallel Output-Parallel (IPOP) mode. However, has problems of slow output voltage response large ripple some special appl...

The difficulty of developing reliable parallel software is generating interest in deterministic environments, where a given program and input can yield only one possible result. Languages or type systems can enforce determinism in new code, and runtime systems can impose synthetic schedules on legacy parallel code. To parallelize existing serial code, however, we would like a programming model ...

In this paper we propose a parallel structure of I-P-D (Integral minus Proportional minus Derivative) type fuzzy controller based on the conventional PID control theory, used to control the speed of DC motor. The conventional PID controller exhibit poor performance when applied to DC motor, it fails to perform satisfactory under parameter variation or load changes. The parallel I-P-D type fuzzy...

The thermoelectric transfer difference of Thermal Converters (TCs) can be evaluated in both current mode and voltage mode, using a fast-reversed dc (FRDC) source. Some types of TCs show differences in the thermoelectric transfer difference between voltage and current mode as large as some parts in 10. In order to investigate the origin of the discrepancy, the change of the thermoelectric transf...

background: consumption of dark chocolate has been often hypothesized to have a role in the prevention of chronic diseases. the objective of this study was to investigate the effects of consumption of dark chocolate (dc) on serum oxidative stress and blood pressure in patients with metabolic syndrome (mets). methods: an 8-week parallel randomized clinical trial involving 114 patients with mets ...

Wind energy is a good alternative to fossil fuels, as the use of fuels has seriously exacerbated emission greenhouse gases such carbon dioxide and greatly affected environment. Conventional AC wind farms transmission systems inevitably face problems involving reactive currents overvoltage in context large-scale, large-capacity, long-distance transmission. However, all-DC turbines, together with...

This paper addresses the problem of designing a robust control law for uncertain switched affine systems. In order to cope with model uncertainties, dynamic controller is introduced. Local asymptotic stability closed-loop system as well zero steady state error on controlled output are proven. A constructive method based LMI conditions given. It delivers parameters and an estimation domain attra...

A single stage single switch AC/DC converter is an integration of input current shaper and a DC/DC cell with a shared controller and one active switch. The converter is applicable for digital input power supply with high input power factor and tight output voltage regulation. The focus of the topology is to reduce the DC bus voltage at light load without compromising with input power factor and...