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This paper proposes an energy storage unit integrated dual input PV system with distributed maximum power point tracking (MPPT). Through applying a symmetrical configuration, the proposed PV system has a single stage structure to implement voltage boosting and inversion, which contributes to the advantages such as compact size and high power conversion efficiency. The design of the control strategy...
The article describes using of power semiconductor converters in the area of accumulation of electrical energy in the Technology Centre Ostrava (TCO). Further discloses design of the power semiconductor converters, its internal structure, utilization of energy and the main parameters and focuses on the issues of the capacitor bank — determine the power loss of capacitors, determine the lifetime, determination...
Recently, vehicles such as hybrid electric vehicle (HEV) and electric vehicle (EV) are actively researched. This paper focuses on EV with a DC-DC converter. EV is inefficient as the battery supplies all power through the DC-DC converter all the time. This paper proposes a high efficient energy conversion system (HEECS) using two batteries: a main battery and a sub battery. The main battery supplies...
In the absence of an overhead line in maintenance workshops, there is a requirement to power the train from a shore supply in order to provide a DC Bus for the train inverters and battery chargers during maintenance activities. In this paper we describe a new way to supply the DC Bus, using the industrial 3 phase voltage supply, without any extra active components. With this method we respect all...
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