Reliability optimization is an important step in industrial systems design. In order to develop a reliable system, designers may introduce different redundant technologies with the same functionality in parallel. In this paper, each technology is assumed to be composed of series components. The obtained configuration belongs to the series-parallel systems. The presented tool is for the design o...

using the riemann-liouville fractional differintegral operator, the lie theory is reformulated. the fractional poisson bracket over the fractional phase space as 3n state vector is defined to be the fractional lie derivative. its properties are outlined and proved. a theorem for the canonicity of the transformation using the exponential operator is proved. the conservation of its generator is p...

This paper investigates the effect of temperature on a hybrid energy storage system with various energy management systems. The hybrid energy storage system consists of a fuel cell, ultracapacitor and battery with associated DC/DC and DC/AC converters. The energy management strategies employed are the state machine control strategy, fuzzy frequency/logic decoupling strategy, minimization strate...

Series and parallel connections are usually first encountered in the study of electrical circuits. Our approach is to first examine a relevant class of partially ordered sets (posets) and then to define series-parallel networks by analogy [1]. Interesting asymptotic constants appear everywhere, similar to those associated with counting various species of trees [2]. We also talk briefly about th...

Cloud model has been used in the field of reliability evaluation successfully. It solves the problem of reliability evaluation under variable working conditions. In the past, most work was focused on the reliability evaluation of single product. For this reason, a hybrid method based on non-probabilistic cloud model and traditional probability statistics is proposed. It solves the reliability e...

A solar cell array is inherently a nonlinear device consisting of several solar cell modules connected in series-parallel combinations to provide the desired DC voltage and current. At a fixed insolation level, the terminal voltage decreases nonlinearly as the load current increases. Due to this nonlinearity, it is difficult to determine analytically the operating point at which the output powe...