Influence of voltage reserve on the parameters of parallel power active compensators in mining

Andrii Kolb,Oksana Petinova,Yuliya Pazynich,Adam Mirek,V Bondarenko,M Hardygora,I Kovalevska,F Cawood,O Malova,R Lysenko

doi:10.1051/e3sconf/202020101024

Abstract

The static and dynamic reserve of voltage in input of voltage autonomous inverter being a component of parallel power active compensator on the physical realizability of inactive current components with the determined response, pulsations amplitude and commutation frequency of invertor switches was considered. Invariance of closed system of automated power quality regulation with relay control to the parametric and external disturbances is provided by the dynamic voltage reserve calculated from the obtained expressions. Special attention is given to the possibility of using this system in mining. Proposed approaches also can be used in the training of engineers in the electrical and mining industries.

Highlights

A mining enterprise is a complex technical and technological system that depends on the consistency of its constituent elements
In addition to ensuring the efficiency of the enterprise, ventilation, and safety, it significantly affects the cost of mining [2, 4 – 8]
That is the reason for the issues of complex approach to the development and practical application of ways of energy saving and flexible management of traditional indicators of power quality using the means of industrial electric drive becoming of great importance

Summary

Introduction

A mining enterprise is a complex technical and technological system that depends on the consistency of its constituent elements. PPAC relay control for normalization of traditional quality indicators of power enables implementation of maximum permissible system response speed and high control accuracy resulting from forced influence on a controlled object This requires the system to have the needed power resource, namely static and dynamic reserve (storage) of voltage in DC link, which being inverted forms altering voltage of a needed value in power inputs of voltage autonomous inverter. The aim of the paper is to analyze the influence of static and dynamic voltage reserve in invertor input on physical realizability of compensation modes of inactive current components with the determined response, pulsations amplitude and commutation frequency of invertor switches depending on the location of the power consumer in the mine

Materials and research results

Conclusions