Photoelectric Properties in Amorphous Chalcogenide Glassy Semiconductor As40Se30S30 Films

Bipolar photoconductivity and bipolar drift of charge carriers have been established in amorphous chalcogenide glassy semiconductors As40Se30S30 films, obtained by ion-plasma rf sputtering, in contrast to the films of these materials obtained by thermal evaporation. Observed results were due to the lack of deep traps for electrons in the spectrum of localized film states obtained by ion sputtering

Photo-Structural Transformations in Amorphous Chalcogenide Glassy Semiconductor Films

The absence of deep traps for electrons in the spectrum of As40Se30S30 localized states films obtained by ion sputtering was determined. Bipolar drift of charge carriers was found in amorphous As40Se30S30 films of chalcogenide glassy semiconductors, obtained by ion-plasma sputtering of high-frequency, unlike the films of these materials obtained by thermal evaporation

Optimization of electric networks modes under conditions of partial uncertainty of initial information

One of the problems of modern power systems management regimes associated with the probabilistic nature of the starting information. In such circumstances, the decision of relevant control tasks based on deterministic methods lead to unacceptable or non-optimal results. Therefore, this article questions optimization of energy systems based on functional limitations in terms of probability of the initial informatio

Mathematical models and algorithms of optimal load management of electrical consumers

The article investigated the static, dynamic and metrological characteristics of new magnetoelastic force sensors taking into account the distribution of Load profile smoothing based on optimal power management is considered to be one of the main ways to ensure efficient operation of energy systems in the short-term planning. Smoothing load profile with a view to reducing costs can be implemented on the ways in which consumers could be affected by administrative and economic measures. Administrative measures are associated with the forced restriction of consumer loads in certain intervals of the planning period. On the one hand, these measures provide benefits to the power system by smoothing load profile, and on the other hand, they cause damage to consumers. Ultimately, in some cases, the damage may be greater than the benefits as a whole to the power system. Therefore, it is advisable to use them in conditions of shortage of power and electricity in the power system. Optimal planning of short-term regimes of power systems according to received, after alignment, rigid load profile can be carried out by traditional methods. The solution of such a problem can be initially carried out under conditions of non-rigid load profile resulting from the directive use of administrative and economic measures carried out with the help of specially developed models. In this regard, the paper proposes a mathematical model of the problem of optimizing load profile of regulated electrical consumers with optimal planning of short-term power system modes, an algorithm for optimal planning of a short-term power system mode with optimizing load profile of regulated power consumers. And also, algorithms are proposed for accounting for simple and functional constraints in the form of equalities and inequalities when optimizing load profile. The effectiveness of the described algorithm for optimizing the short-term mode of the power system, taking into account the optimal load control of adjustable electric locomotives, has been studied using the example of optimal coverage of the load profile of power system, which contains two consumers with adjustable load profile, and two TPPs. Based on the calculated experimental studies computational qualities, it was determined that the proposed mathematical model of the problem is adequate, the developed algorithms for optimal planning of short-term power system modes with optimization of load profile of regulated electric consumers and taking into account various types of limitations have high computational qualities