Static Reactive Power Compensator Design, Based on Three-Phase Voltage Converter

Manuel Ayala-Chauvin,Jorge Buele,José Varela-Aldás,Bahodurjon S. Kavrakov

doi:10.3390/en14082198

Abstract

At present, electrical network stability is of the utmost importance because of the increase in electric demand and the integration of distributed generation deriving from renewable energy. In this paper, we proposed a static reactive power compensator model with common direct current voltage sources. Converter parameters were calculated and designed to fulfill specifications. In order to ascertain the device response for different operating modes as reactive power consumer and generator, we developed the model’s power and control circuits in Matlab Simulink. Simulations were performed for different conditions, and as a result, the current and voltage waveforms and the circular power chart were obtained. This paper has theoretically proven it is possible to achieve the consumption or generation of purely active or reactive power by implementing a static reactive power compensator with common DC voltage sources.

Highlights

Worldwide changes have constituted the electric power production and transmission management in an increasingly profitable business. This is thanks to the managing of power systems through a deregulated model, which has been reproduced in several countries [5]
The STATCOM is connected to the AC grid through P1 reactors that are charge that are in charge of limiting phase currents andharmonic diminishing higherensuring harmonic of limiting the phase currents andthe diminishing higher currents, thecurrents, ensuring the electromagnetic compatibility between converter and grid
The STATCOM presented in this research is a VSC-based device, where the reactive power generated at the terminals depends on the amplitude of the voltage source

Summary

Introduction

Worldwide changes have constituted the electric power production and transmission management in an increasingly profitable business. This is thanks to the managing of power systems through a deregulated model, which has been reproduced in several countries [5]. As mentioned above, has produced that electrical power systems (EPS) in certain regions work over or below their real capacity. This can result in poorly damped or unstable electromechanical oscillations, causing high operating costs and network elements’ gradual wear

Methods

Results

Discussion

Conclusion