The partial power processing (PPP) concept has been extensively employed in many two-port converters to achieve high efficiency and high-power density by modifying one of the original converter ports be connected series between input output. This is attractive but confined applications, how extend it multiport applications not clear. Hence, this article aims explore a generalized PPP scheme arr...

Abstract — This paper presents a mathematical modeling and simulation of a photovoltaic solar module. Mainly an accurate mathematical model for computing Maximum Power output of a photovoltaic PV module is presented. The model for PV panel is developed based on the single-diode photovoltaic model, found in the literature, including the effect of the series resistance. A typical 60 W photovoltai...

From the history of power electronics, the technology improvements in power semiconductors have been the driving force for this problem. Moving from bipolar to MOSFET technology has greatly increased switching speed. For current semiconductor technology, very fast devices are available. For the power MOSFET used in front end application, they could be switched with mega hertz frequency range. T...

A Coal Quality Detection Management System is developed in Visual C++ based on Client/Server mode, and the system combines several techniques, such as the open database connectivity, serial communication, and Excel object linking and embedding. The system is composed of three modules: a receipt/allocation module, a data acquisition module, and a detection data management module, and the modular...

Let R be a commutative ring with identity and M an R-module. In this paper, we associate a graph to M, sayΓ(RM), such that when M=R, Γ(RM) coincide with the zero-divisor graph of R. Many well-known results by D.F. Anderson and P.S. Livingston have been generalized for Γ(RM). We Will show that Γ(RM) is connected withdiam Γ(RM)≤ 3 and if Γ(RM) contains a cycle, then Γ(RM)≤4. We will also show tha...

A prototype concentrating photovoltaic (CPV) module was designed and constructed with a low concentrating dielectric compound parabolic concentrator (DiACPC) for outdoor characterisation. The designed concentrator has acceptance half angles of 0 & 55 with a concentration ratio of 2.8. This concentrator design is suitable for building facade integration in higher latitude (>55 ) locations. A sma...

Spectral correlation theory for cyclostationary time-series signals has been studied for decades. Explicit formulas of spectral correlation function for various types of analog-modulated and digital-modulated signals are already derived. In this paper, we investigate and exploit the cyclostationarity characteristics for two kinds of multicarrier modulated (MCM) signals: conventional OFDM and fi...

a r t i c l e i n f o a b s t r a c t Keywords: Valuation independence Generalized series fields Fields of Puiseux series Restricted exponential function We investigate valued fields which admit a valuation basis. Given a countable ordered abelian group G and a real closed or algebraically closed field F with subfield K , we give a sufficient condition for a valued subfield of the field of gene...