Design and evaluation of computer-based electrical power quality signal generator

Simić, Milan; Kokolanski, Živko; Denić, Dragan; Dimčev, Vladimir; Živanović, Dragan; Taskovski, Dimitar

doi:10.1016/j.measurement.2017.05.010

Cited by 15 publications

(10 citation statements)

References 9 publications

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“…In addition to such generation of test signal, similar to the one shown in [1], presented generator includes an array of commands to change any of the enumerated parameters, in defined time, with defined rising time, and goal value of parameter. That array of changes, present at the right side of the front panel in Fig.1., enables a more complex predefined test scenario during the generation process.…”

Section: Basic Configuration and Description Of Virtual Vq Signal Genmentioning

confidence: 99%

“…In order to provide the output signal level required for testing the instruments for VQ measurement, reference signals generated on the data acquisition board analog outputs must be amplified to the nominal power line voltage level of 230 V. For realization of signal amplifier several analog signal processing blocks were used: low pass antialiasing filter (to restrict the input signal bandwidth and eliminate noise), preamplifier (to amplify the input signal to the required given reference level), and power amplifier (to amplify the input signal to the nominal power line voltage level of 230 V). Design and implementation of this specific power quality (PQ) amplifier used for signal amplification are already described in recently published scientific papers [1], [13].…”

Section: Basic Configuration and Description Of Virtual Vq Signal Genmentioning

confidence: 99%

“…Virtual instrument, presented in the paper, is capable of reproducing long-time predefined complex test scenarios, including various combinations of standard VQ disturbances. This solution, easily adaptable to various practical requirements, random test sequence generation and upgrading, includes significant improvements of computer supported signal generator presented and described in the previously published paper [1]. It is suitable for testing the commercial instruments for detection of standard voltage quality disturbances.…”

Section: Introductionmentioning

confidence: 99%

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Generation of Long-time Complex Signals for Testing the Instruments for Detection of Voltage Quality Disturbances

Živanović

Simić

Kokolanski

et al. 2018

Measurement Science Review

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Software supported procedure for generation of long-time complex test sentences, suitable for testing the instruments for detection of standard voltage quality (VQ) disturbances is presented in this paper. This solution for test signal generation includes significant improvements of computer-based signal generator presented and described in the previously published paper [1]. The generator is based on virtual instrumentation software for defining the basic signal parameters, data acquisition card NI 6343, and power amplifier for amplification of output voltage level to the nominal RMS voltage value of 230 V. Definition of basic signal parameters in LabVIEW application software is supported using Script files, which allows simple repetition of specific test signals and combination of more different test sequences in the complex composite test waveform. The basic advantage of this generator compared to the similar solutions for signal generation is the possibility for long-time test sequence generation according to predefined complex test scenarios, including various combinations of VQ disturbances defined in accordance with the European standard EN50160. Experimental verification of the presented signal generator capability is performed by testing the commercial power quality analyzer Fluke 435 Series II. In this paper are shown some characteristic complex test signals with various disturbances and logged data obtained from the tested power quality analyzer.

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Section: Basic Configuration and Description Of Virtual Vq Signal Genmentioning

confidence: 99%

Section: Basic Configuration and Description Of Virtual Vq Signal Genmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Generation of Long-time Complex Signals for Testing the Instruments for Detection of Voltage Quality Disturbances

Živanović

Simić

Kokolanski

et al. 2018

Measurement Science Review

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“…A primary function is generation of reference voltage waveforms, including special functions for simulation of standard PQ network disturbances [5]. The main requirement was to provide the combining a number of disturbances in one complex sequence, but also to include certain level of noise, small voltage and frequency variations.…”

Section: Software Support Of Experimental Measurement Systemmentioning

confidence: 99%

Software Based Experimental System for Electrical Power Quality Measurement Using the Wireless Sensor Network Modules

et al. 2017

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“…It is proposed by a mathematical method for the analysis of waveforms resulting from PQ problems [9]. A Labview-based power quality signal generator has been proposed that can reproduce PQ disturbances that overlap with actual system data in another study [10]. One of the studies carried out, detection and classification of islanding and PQ disturbances were performed in a distributed generation (DG) based hybrid power system connected to the main grid [11].…”

Section: Introductionmentioning

confidence: 99%

Assesment of Power Quality Disturbances For Grid Integration of PV Power Plants

Bayrak

Yılmaz

2019

Sakarya University Journal of Science

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Power Quality problems, which have become an important consumer issue in recent years, are defined as changes in voltage, current, or frequency in the power system. Among the factors affecting energy quality in grid-connected PV systems are island mode operation, current and voltage harmonics, transients, flicker, interruption, DC offset, notches, frequency changes, voltage sag/swell, voltage imbalances in the system and power factor. Several transmission and distribution losses consist of both the consumers and the generators sides because of the power quality problems. The integration of PV power plants to the main grid will cause several power quality problems so a reliable operation of the grid with PV power plants is a significant issue for a distributed generation. Thus, the first step in preparing a reliable algorithm for detecting power quality events occurring in the current grid is to model a power system in which power quality impairments can be analyzed. In this study, the power quality disturbances that occur in the low-voltage grid that is fed through both the main grid and the gridconnected PV system are modeled and investigated. Developed electric power distribution model includes simulation of voltage sags caused by the three-phase fault, transformer energization and asynchronous motor switching, voltage swells caused by the three-phase fault, transients due to large capacitor bank switching, harmonics and notches caused by the load connected via the power converter. Examination of the power quality disturbances with simulation clearly revealed the resulting waveforms, the response of the electrical power system to the fault conditions. Another advantage of the realized study is that the developed model can be used to measure the performance of the PV connected distributed generation system in fault detection and classification studies.

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Design and evaluation of computer-based electrical power quality signal generator

Cited by 15 publications

References 9 publications

Generation of Long-time Complex Signals for Testing the Instruments for Detection of Voltage Quality Disturbances

Generation of Long-time Complex Signals for Testing the Instruments for Detection of Voltage Quality Disturbances

Software Based Experimental System for Electrical Power Quality Measurement Using the Wireless Sensor Network Modules

Assesment of Power Quality Disturbances For Grid Integration of PV Power Plants

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