Experimental analysis of a prototype voltage stabilizer using an optoelectronic proximity voltage relay

This article discusses the issues of experimental analysis of power quality indicators when using a voltage stabilizer using an optoelectronic proximity voltage relay. Where, the booster voltage stabilizer, the magnetizing windings of which are switched using non-contact voltage relays made on the basis of semiconductor devices, as well as the duration of the transient process when switching active and active-inductive loads connected to the output of the stabilizer. In addition, the article provides information regarding the performance of the developed prototype voltage stabilizer using an optoelectronic contactless voltage relay and verification of an experimental study of the operation of installations with their use. Also presented is material on the experimental study of a prototype voltage stabilizer using an optoelectronic contactless voltage relay in various operating modes. Summarizing the results of experimental studies of a prototype voltage stabilizer using an optoelectronic contactless voltage relay, it can be stated that it fully meets the requirements for such devices and can ensure reliable operation of the power supply network of household electrical consumers.

Analysis and study of energy efficiency by the operation of a voltage stabilizer

This article discusses the analysis and study of the energy efficiency of the operation of a voltage stabilizer using a non-contact voltage relay. In addition, the calculation of the energy efficiency from the use of the stabilizer is presented on the example of the enterprise of the Baysun district power supply of the Surkhandarya region. Summarizing the results of the analyzed and investigated energy efficiency of the prototype of the stabilizer, it can be stated that it fully meets the requirements for such devices and can ensure reliable operation of the power supply network of household electrical receivers with a voltage of 0.4 kV.

Bifurcation processes in pulse voltage regulator

Analysis of a pulse voltage regulator from the point of view of transition to an unstable position and possible bifurcation states. Calculation of the stability condition when changing the parameters of the system. Obtaining the pulse voltage regulator stability surface. This voltage stabilizer can have the basic intrinsic parameters of the system, such as, for example, the load resistance, the value of which can change over time according to unknown laws. In the course of the work, the stability limits for static and dynamic bifurcations were obtained with respect to many parameters of the system, including with respect to the value of the load conductivity. To obtain numerical results, a system with the following main parameters was used: U = 4,1 V, d0 = 0,4, C = 600 F, L = 2 mH, f1 = 0,8 Ohm, G = 0,5 V1, RL = 2 Ohm.

Optimisation of Electromagnetic Components of a Parametrical Voltage Stabilizer with Magnetic Communications between the Nonlinear Coil and a Ballast Element

Optimisation of electromagnetic components of a parametrical voltage stabilizer with magnetic connections between the nonlinear coil and a ballast element on the minimum volume of an electromagnetic element Is resulted. Suitability for optimisation of criterion of equality of losses in core and device windings is considered. Analytical expressions for restrictions in the form of density of a current and an admissible overheat are received. The comparative estimation of use of active materials in the given device and the optimum transformer is made. KEYWORDS: a ferromagnetic element, approximation, core volume, current density, a magnetic induction, an overheat, losses in core, losses in the windings, full electromagnetic power, criterion function, restrictions, thermal balance.