Experimental Study of Harmonic Influence on Electrical Energy Metering

Shklyarskiy, Yaroslav; Hanzelka, Zbigniew; Skamyin, Aleksandr

doi:10.3390/en13215536

Cited by 15 publications

(15 citation statements)

References 23 publications

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“…In turn, the optimization of modes of operation of equipment, especially for thermal power generation and the reduction of necessary maneuverability will allow for the reduction of specific operating costs (including fuel costs) and CO 2 emissions. In addition, this will extend the service life of existing equipment, while reducing the need to build new facilities [29]. In the case of network equipment, network losses will naturally be decreased by reducing the volume of overflows.…”

Section: Diffusion Of Ress Into Existing Energy System Through the Development Of Power Accumulatorsmentioning

confidence: 99%

Prospects and Obstacles for Green Hydrogen Production in Russia

et al. 2021

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Renewable energy is considered the one of the most promising solutions to meet sustainable development goals in terms of climate change mitigation. Today, we face the problem of further scaling up renewable energy infrastructure, which requires the creation of reliable energy storages, environmentally friendly carriers, like hydrogen, and competitive international markets. These issues provoke the involvement of resource-based countries in the energy transition, which is questionable in terms of economic efficiency, compared to conventional hydrocarbon resources. To shed a light on the possible efficiency of green hydrogen production in such countries, this study is aimed at: (1) comparing key Russian trends of green hydrogen development with global trends, (2) presenting strategic scenarios for the Russian energy sector development, (3) presenting a case study of Russian hydrogen energy project «Dyakov Ust-Srednekanskaya HPP» in Magadan region. We argue that without significant changes in strategic planning and without focus on sustainable solutions support, the further development of Russian power industry will be halted in a conservative scenario with the limited presence of innovative solutions in renewable energy industries. Our case study showed that despite the closeness to Japan hydrogen market, economic efficiency is on the edge of zero, with payback period around 17 years. The decrease in project capacity below 543.6 MW will immediately lead to a negative NPV. The key reason for that is the low average market price of hydrogen ($14/kg), which is only a bit higher than its production cost ($12.5/kg), while transportation requires about $0.96/kg more. Despite the discouraging results, it should be taken into account that such strategic projects are at the edge of energy development. We see them as an opportunity to lead transnational energy trade of green hydrogen, which could be competitive in the medium term, especially with state support.

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Section: Diffusion Of Ress Into Existing Energy System Through the Development Of Power Accumulatorsmentioning

confidence: 99%

Prospects and Obstacles for Green Hydrogen Production in Russia

et al. 2021

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“…In practice, such conditions are hard to achieve. It is worth noting that, in [24], the authors noticed the influence of harmonics on the operating of electrical energy meters in a network with nonlinear loads. It is shown that electronic static meters of active energy are tested in the presence of distortions, and electronic static meters of reactive energy accuracy requirements do not take into account the possible presence of harmonics.…”

Section: Gap In the Research Related To Influence Of Supply Voltage D...mentioning

confidence: 99%

“… Source of non-intentional emissions and propagation of supraharmonics, interaction between devices [16][17][18][19][20].  Potential problems with communication via the power grid [1,[20][21][22][23][24][25].…”

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confidence: 99%

The Impact of Supply Voltage Waveform Distortion on Non-Intentional Emission in the Frequency Range 2–150 kHz: An Experimental Study with Power-Line Communication and Selected End-User Equipment

et al. 2021

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Knowledge of the conducted emissions in the frequency range 2–150 kHz contains some gaps related to the impact of the harmonics in the supply voltage on the nature of these emissions. It can be noticed that the conducted emissions from non-sinusoidal power supplies have not been studied sufficiently, and that the impact of this distortion may be greater than the generally known results of emission tests carried out under standardized test conditions. This paper is aimed at investigating experimental cases of the influence of supply voltage waveform distortion on non-intentional emission in the range 2–150 kHz and the efficiency of power line communication based on selected PRIME (PoweRline Intelligent Metering Evolution) power line communication (PLC) technology. A series of experimental laboratory studies were investigated, representing the operation of the investigated PLC system with different types of end-user equipment (LED—Light Emitting Diode, CFL—Compact Fluorescent Lamp, induction motor with frequency converter) working under a distorted supply voltage condition obtained by the programmable power supply for different scenarios of the admissible harmonics contribution in the range 0–2 kHz. The scenarios included limits defined in standards EN 50160 and IEC 61000-4-13. The researchers used spectral analysis with a notation to emission limits, compatibility levels, and mains signalling, as well as statistics of the PLC communication. The obtained results provide important conclusions, which may be applied both in the development of the design of the appliances in question and the higher frequency emission testing methods.

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“…To provide proper reaction for power quality disturbances, the control systems of relay protection units and compensation devices must be capable of fast and accurate tracking of both voltages and currents parameters in the industrial power grids [36][37][38][39]. To achieve this, well-known algorithms based on space vector and instantaneous power estimation are used [36,40,41].…”

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confidence: 99%

“…Considering the remoteness of the dragline #2 and #3 from the transformer bus, the presented load profile will create a significant voltage drop in the cable lines, connecting the grid node with the substation bus, depending on the grid short-circuit impedance at the substation bus [57]. At the same time, dragline #3 will consume harmonic currents with arbitrary magnitude, depending on its load profile, therefore, introducing randomness to currents and voltages spectra at the PCC [38,58,59]. To maintain power quality within the acceptable limits, which are regulated according to GOST (acronym for State Standard or Governmental Standard in Russian) 32144-2013, the dynamic compensators are typical to be installed at the nodes depending on the grid and load configuration.…”

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confidence: 99%

Novel Approach to Collect and Process Power Quality Data in Medium-Voltage Distribution Grids

2021

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The paper is devoted to the development of the structure of a fast and flexible data collecting system based on the proposed approach to measure power quality indicators in three-phase medium-voltage distribution grids with an example of a Mikhailovsky mining and processing plant. The approach utilizes the properties of a space vector, obtained from grid currents and voltages with disturbed waveform, to allow faster extraction of the harmonic components compared to traditional approaches, based on the direct Fourier-transform applied to a line or phase values. During the study, the concept of a universal measurement device was introduced, which allows fast estimation of the following values at the grid node: magnitudes and phases of voltage and current harmonic components, active and reactive power of harmonics and fundamental components, positive and negative instantaneous powers. The structure of interconnected measurement and control units for the considered grid node with simultaneous operation of two active variable frequency drives with active rectifiers was proposed in accordance with a concept of the Internet of things. The benefits of the proposed solution are shown by the example of the model of the grid node with two operating draglines and nonlinear load, which was developed in MATLAB/Simulink software. The proposed approach was utilized to produce distributed references for control systems of grid inverters to compensate nonlinear currents, which allowed to significantly improve THDi of the grid node input power.

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Experimental Study of Harmonic Influence on Electrical Energy Metering

Cited by 15 publications

References 23 publications

Prospects and Obstacles for Green Hydrogen Production in Russia

Prospects and Obstacles for Green Hydrogen Production in Russia

The Impact of Supply Voltage Waveform Distortion on Non-Intentional Emission in the Frequency Range 2–150 kHz: An Experimental Study with Power-Line Communication and Selected End-User Equipment

Novel Approach to Collect and Process Power Quality Data in Medium-Voltage Distribution Grids

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