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The symmetrical compensation is widely used in inductive power transfer (IPT) system due to the advantages of achieving good coupling coefficient when the coils are perfectly aligned and easy to design. This paper investigates a general tuning method for voltage-fed symmetrical higher-order resonant networks for achieving load-independent transconductance. With the proposed tuning method, a resonant...
Energy balanced control method for converters with natural trajectory tracking is presented in this paper, and is visualized to show converters' energy conversion inside converters. This paper specially designs and analyzes a single-phase full-bridge inverter based on energy balance with natural trajectory tracking. Natural trajectory tracking introduces a better dynamic response than the conventional...
The load-balanced clustering is a most significant problem for WSNs with unequal load of the sensor nodes but it is known to be an NP-hard problem. This paper introduces a new model for the problem in which the objective function is to maximize the overall minimum lifetime of the cluster heads. To solve this model, we propose a novel estimation of distribution algorithm based dynamic clustering approach...
Basic. Generator control unit design plays a crucial role in the design of the aircraft power system, therefore it's necessary to model and simulate. The rapid development of aeronautical technology puts forward higher requirements to reliability and quality of power supply system, and traditional simulation software is unable to meet the demand. Since Dymola software designed by Sweden Dynasim AB...
In order to solve parallel algorithm of Petri net system with concurrent functions and implement parallel control and execution of Petri net, parallel programming model of Petri net based on multi-core clusters is put forward. First, P-invariant technology is used to do the functional division of Petri net system and the parallel analysis of Petri net process. Next, based on architecture of multi-core...
Electrical arcs are of great concern for power electronic systems. Modeling of arc faults to represent and predict arc characteristics and transient responses within the power system is now receiving considerable research attention. In this paper, a series DC arc fault demonstration rig is designed to generate series arcs by moving one electrode away from a stationary one with a stepper motor. Experimental...
With the rapid development of our country, the demands of steel, timber and other bulk goods are greatly increased, the transportation becomes even more important and complicated. For the difference of vehicles' loading capacity, in the process of transferring vehicles, it is likely to cause surplus. In this paper, we study on the handling of the surplus bulk goods due to the transferring vehicles...
Due to complexity, multiplicity and randomness of table tennis matches, it is necessary to develop some skill and tactic diagnostic models especially an efficient scoring model to get some skill and tactics data for table tennis matches. A scoring model is developed for table tennis matches based on video image processing technology. An input match video is used to analysis the skill and tactic of...
Based on mesomechanics of concrete, the big recycled aggregate-filled Concrete is regarded as a type of three-phase composite heterogenous material composed of big recycled aggregate, self-compacted concrete and interfacial transition zone(ITZ). Random aggregate model is employed to stand for microscopic structure of big recycled aggregate-filled concrete. Uniaxial compression process is simulated...
Based on the theory of non-convex interval goal programming and the discrete resources ideology, this paper constructs three basic storage resources allocation models, to illustrate the relationship between the aggregate requirement and the gross capability of storage in a group enterprise. Numerical results for the oil country tubular goods (OCTG) of 17 subcompanies of a group oil enterprise, verified...
PHP is one of the leading Web development languages, however, the development model of existing PHP organizes without a structure, which mixes the code of data access, the processing of business logic , and Web presentation layer together, as a relult, it brought about many problems in the Web applications , meanwhile, it could not meet the rapid development of Web apply any more. In this paper, a...
This paper presents a novel compact dual-band electromagnetic bandgap (EBG) structure utilizing cascaded mushroom-like structures with and without chip capacitors loading. Direct transmission method is used to determine the band-gap of the EBG structure. The effects of loading capacitors between the neighboring metal patches on the EBG properties are investigated. The units loaded with and without...
This paper discusses a new way to solve the vehicles routing problems of logistics distribution with the use of TSA (Tabu Search Algorithm). TSA is used to calculate the cost of the dealer or the company of all filiale, which is based on the actuality that there are distribution tasks among filiale (or distribution centers) in the cooperative distribution. A new way here is established considering...
In this paper, we expand previous work and present an accurate electricity load forecasting algorithm with back propagation neural networks. It contributes to short-term electricity load forecast methodology with neural network with weather feature such as max centigrade, min centigrade and weather types. The original electricity load is from shanghai district, which is composed of original every...
Ar K-shell Spectra were measured using an elliptical crystal spectrometer in gas-puff Z-pinch experiments performed on Yang Accelerator (peak current 800 kA, rise time 90 ns). To estimate from the spectra the electron temperature of the plasma, a collisional-radiative (CR) model was developed. By comparing the line ratio of Lyα and Hea derived from the experimental results with those predicted by...
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