An innovative hybrid insulation switch to enable/disable electrical loads without overvoltages

Abstract

Abstract. This article describes an innovative project for the design of a low voltage switch to enable/disable electrical devices from an AC source, which is characterised by the absence of arc ignition. When powered off, this device is a galvanically separated of the receiver from the power source. The proposed hybrid interaction has two switches: the insulating switch made of mechanical contacts and the current switch made of elements from power electronics. The absence of arc ignition increases the equipment uptime and improves the comfort-powered receiver and equipment located nearby.

Examination of Multivalent Diagnoses Developed by a Diagnostic Program with an Artificial Neural Network for Devices in the Electric Hybrid Power Supply System “House on Water”

“…As part of the configuration, the following are defined: the type of state logic and the range of their intervals; options for visual presentation in the state table; and RBF network parameters. The object states accepted for multi-valued logic were defined in Polish standards concerning the reliability and quality of service [6,[33][34][35][36][37][38][39] (Figures 8 and 9). Therefore, the classification stage in the diagnosis process determines a specific state for each basic element of the technical object examined.…”

“…At present, electric power systems using renewable energy (wind, solar etc.) are developing particularly intensively; this can be seen as regards the subject of publications [29][30][31][32][33][34][35][36][37][38]. A novelty in this article in the aspect of electric power supply systems is a presentation of the method of building and developing diagnostic knowledge bases for electric hybrid power supply systems for the HoW.…”

Taking decisions in the diagnostic intelligent systems on the basis information from an artificial neural network

“…The object's state is determined on the basis of an examination of the set of output (diagnostic) signals {X(e i,j )}(Tab 1) [4,5,7,9]. The set of its functional elements {e i,j } determined during a diagnostic study of the object constitutes the basis for the list included in the table of a set of diagnostic signals (Table 1).…”

Decomposition of the Voltages in a Three-Phase Asymmetrical Circuit with a Non-Sinusoidal Voltage Source

“…Recent improvements in this power theory [3,7,25,26] enable a complete mathematical description of the electrical quantities in real three-phase circuits. In addition, thanks to the distribution of the current into individual components, it is possible to analyze the circuit in various situations that occur in real systems [27][28][29][30]. Based on the CPC theory, power compensation methods have been developed [31][32][33] and special attention should be paid to [34][35][36].…”

“…For the correct assessment of electrical parameters before and after compensation, an appropriate method of power measurement [56][57][58][59] should be adopted. When the analysis takes into account the nonlinearity of the load [29,[60][61][62], additional analytical problems will appear. The appearance of many harmonics in current and voltage waveforms means that the compensator should be selected for all signal frequencies [63][64][65].…”