Design of a Measuring System for Electricity Quality Monitoring within the SMART Street Lighting Test Polygon: Pilot Study on Adaptive Current Control Strategy for Three-Phase Shunt Active Power Filters.

Radek Martinek,Jan Baros,Radana Kahankova,Jindrich Brablik,Petr Bilik,He Wen,Rene Jaros,Jaroslav Rzidky,Lukas Danys

doi:10.3390/s20061718

Radek Martinek, Jan Baros + Show 7 more

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https://doi.org/10.3390/s20061718

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Abstract

This study focuses on the design of a measuring system for monitoring the power quality within the SMART street lighting test polygon at university campuses with relation to testing an adaptive current control strategy for three-phase shunt active power filters. Unlike conventional street lighting, SMART elements are powered 24/7. Due to the electronic character of the power part of such mass appliances, there are increased problems with the power quality of the electric energy. Compared to the current concept of street lighting, there is a significant increase in the content of higher current harmonic components, which cause several problems in the distribution system. The test polygon contains 16 luminaires made by various manufacturers and mounted with various SMART components. Using the polygon control and monitoring system, dynamic load scenarios were selected. These scenarios tested the possibilities of different adaptive current control strategies for three-phase shunt active power filters to improve the power quality of electricity. This study focuses on three adaptive algorithms that respond to dynamic changes of current harmonics level in real-time. The possibility of active filter control was tested using FPGA, mainly due to the low latency of the filter control part.

Highlights

IntroductionConventional light sources hitherto used for street lighting often operate without the possibility of regulation and illuminate at maximum intensity even when it is not necessary [2,3]
Street lighting is responsible for up to 15% of the national energy consumption [1]
The changes in Total Harmonic Distortion (THD) over time are caused by switching the LED luminaires on and off

Summary

Introduction

Conventional light sources hitherto used for street lighting often operate without the possibility of regulation and illuminate at maximum intensity even when it is not necessary [2,3]. They often emit light even when natural ambient light is fully sufficient for the operation of the infrastructure. This leads to unnecessarily higher operating costs [1,4]. There are several methods of reducing the losses. The most radical method of reducing losses is the general replacement of conventional lighting technology with modern technology [5]. Between 2020 and 2025, the existing conventional street lighting

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