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At the design framework, in this Thesis s the modular multilevel converter (MMC) is analysed and proposed for connecting the power grids. In order to mathematically describe the converter behaviour, the linear time-varying model (LTV) is developed. The system is considered linear between two switching instants. Since the switching functions have a(More)
The problem of the connection of the voltage source converters to the network occurs when the converter transformer is energized from the converter side. This paper deals with the main problems of the transformer energizing, and proposes the procedure for the inrush elimination, simultaneously minimizing the connection period. When a transformer is(More)
Main subject of the reported investigation is the question in which way the acquisition of a conditional discrimination is modified on the one hand by the kind of objects presented, on the other hand by early experience. 40 newly hatched chickens grew up either with all the wooden eggs or cubes used for training and test, or without these objects, or in a(More)
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