Годишник, 2015, Том XXXII
Permanent URI for this collectionhttp://research.bfu.bg:4000/handle/123456789/1109
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Item ЗА РЕШАВАНЕ НА НЯКОИ ПРОБЛЕМИ ПРИ ВЕКТОРНО УПРАВЛЕНИЕ НА ТРИФАЗЕН АСИНХРОНЕН ДВИГАТЕЛ(Бургаски свободен университет, 2015) Георгиев, Гинко; Димитрова, Кремена; Лецковска, Силвия; Сейменлийски, КаменThe report presented the results of proposed structural scheme subject to regulation embodying the vector principle. It has been and analytical expressions, which is based on the conclusion of the transfer function of the system used for the model. There are also two control loop using PI regulator correction, as well as structure of the control loop with the reference model.Item ОСНОВНИ ПОЛОЖЕНИЯ ОТ ТЕОРИЯТА НА УПРАВЛЕНИЕТО НА АСИНХРОНЕН ДВИГАТЕЛ С ОРИЕНТАЦИЯ НА МАГНИТНОТО ПОЛЕ(Бургаски свободен университет, 2015) Лецковска, Силвия; Сиракова, Даря; Сейменлийски, КаменThe report clarifies starting theoretical points for projection of energy efficient system power part for regulation via magnetic field orientation. Graphic images of the oriented regulation system’s main dimensionsare attached. The application field of the results is indicated.Item ПРОИЗВОДСТВО НА ЕНЕРГИЯ С ИЗПОЛЗВАНЕ НА СЛЪНЧЕВО – ВОДОРОДНИ ЕНЕРГИЙНИ СИСТЕМИ(Бургаски свободен университет, 2015) Лецковска, Силвия; Сейменлийски, КаменIn this paper the possibilites to obtain the electricity from the sоlar - hydrogen system are discuced. Presented opportunities for the production of electricity using photovoltaic systems and fuel cells.Item ИЗСЛЕДВАНЕ ПОТЕНЦИАЛА НА ВЪЗОБНОВЯЕМ ЕНЕРГИЕН ИЗТОЧНИК ЗА ПРОИЗВОДСТВО НА ТОПЛА ВОДА(Бургаски свободен университет, 2015) Лецковска, Силвия; Сейменлийски, КаменIn this article the results of studies related to improving the energy efficiency of a building are shown. The study of the production of hot water for household needs using renewable energy source is done. Data showing correlation of the monthly heating load for a home with a certain number of inhabitants are discussed. The replacement ratio is part of the thermal capacity of the building, obtained from a renewable energy source is calculated.Item ПРОИЗВОДСТВО НА ЕНЕРГИЯ С ИЗПОЛЗВАНЕ НА СЛЪНЧЕВО – ВОДОРОДНИ ЕНЕРГИЙНИ СИСТЕМИ(Бургаски свободен университет, 2015) Лецковска, Силвия; Сейменлийски, КаменIn this paper the possibilites to obtain the electricity from the sоlar - hydrogen system are discuced. Presented opportunities for the production of electricity using photovoltaic systems and fuel cells.