Заглавие:Възможности за разширение на диапазона на регулиране на скоростта при импулсно управление на асинхронни електродвигатели
Автор:Божилов, Ганчо Йорданов; Bojilov, Gantcho YordanovДата:1998Резюме:A possibility for extending the speed control range of conventional induction motors under pulse control is treated. This is obtained by connecting capacitors in series to each phase of the motor. As a results, the short circuit reactance will he decreased, the critical slip will be increased and the control range will be extended. Both the ...Библиотека:
Заглавие:Краткосрочно прогнозиране на активните товари в основните възли на електроенергийната система
Автор:Николов, Димитър Александров; Nikolov, Dimitar AlexandrovДата:1995Резюме:The consummation of active power in the main nodes of the electrical power system (e.p.s) is forecasted on the base of the retrospective information about this power for a given period of time. The mathematical model for the forecast of the loads in the nodes takes into account the seasonal trend, the week, the 24 hour regularity and the ...Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие:Управление качеството на светлинната среда в система на комбинирано осветление
Автор:Матев, Димитър Пенчев; Matev, Dimitar PenchevДата:1995Резюме:The article presents control possibilities of the resultant CRF in a system for combined lighting by means of components activity level dozing and no restriction of their number.
The axioms formulated guarantee high quality light milieu and energy effectiveness of the system by the components activity changing.Библиотека: