Motivation towards energy saving by means of IoT personal energy manager platform

Zhukovskiy, Y. L.; Batueva, Daria Evgenievna; Buldysko, Aleksandra; Shabalov, M.

doi:10.1088/1742-6596/1333/6/062033

Cited by 23 publications

(16 citation statements)

References 18 publications

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“…The main technological changes in the electric power industry will be aimed at the formation of a new "post-industrial" power industry, the market of services, and in the future, the market of technologies [40]. A noticeable niche in these markets will be occupied by companies that collect and analyze data, provide services for energy supply and saving [41].…”

Section: Vision Of Russian Energy Scenariosmentioning

confidence: 99%

“…The technological base of this scenario includes virtual and augmented reality technologies, micro grids and "smart power systems," energy storage systems, robotic devices, Building Information Modeling (BIM) technologies, computing technologies for data analysis, "flexible" power generation technologies, fuel cell generators, the Internet of Things [41,42]. One of the most important technologies is electric transport, the large-scale development of which will require significant investments in the relevant infrastructure.…”

Section: Vision Of Russian Energy Scenariosmentioning

confidence: 99%

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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: Vision Of Russian Energy Scenariosmentioning

confidence: 99%

Section: Vision Of Russian Energy Scenariosmentioning

confidence: 99%

Prospects and Obstacles for Green Hydrogen Production in Russia

et al. 2021

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“…The modern concept of improvement of relay protection of electrical complexes and distribution networks, developed by scientific schools of Russia, is focused mainly on the development of simple and reliable current protections, as well as solving problems of detection of complex emergencies and protection of long-range redundancy [12][13][14]. The focus is on protection against single-phase earth faults [15], and the trend toward power generation close to the consumer, which requires consideration of a wider and more complex range of tasks, is practically ignored [16].…”

Section: Problem Statementmentioning

confidence: 99%

Adaptive current protection in electrical complexes with small power plants

Смирнов

Shklyarskiy

2021

E3S Web Conf.

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The article considers electrical complexes with power plants of small capacity. The influence of power generation sources on short-circuit current distribution has been investigated. Reduced sensitivity of back-up current protection and dependence of current distribution on power plant capacity are revealed. Recommendations for minimizing false operation of short-circuit protection in networks with distributed power generation are proposed. An algorithm for adaptive current protection, which uses graph theory to determine the stages of selectivity of relay protection based on finding the shortest Dijkstra path and calculation of equivalent resistance in networks with multiple sources of power generation, which provides selec-tivity and sensitivity of current protection when changing the generated power of generators and the structure of the distribution network is pre-sented. The algorithm uses communication lines with a central control unit to monitor the distribution network and update the current triggering of the relay protection in accordance with changes in the structure of the power grid. The proposed system is designed so that it can respond to dynamic changes in the structure of the network and the state of operation of power plants. Simulation modeling in the Matlab/Simulink software package was performed and the results of the algorithm are presented.

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“…The Internet of things (IoT) in the industry and the number of connected devices, and the amount of investment in IoT devices and infrastructure is growing at a tremendous pace [1][2][3]. According to Rostech, the global industrial IoT market will grow at an average annual rate of more than 14%, and by 2023, its volume will amount to US$ 700.38 billion [4].…”

Section: Introductionmentioning

confidence: 99%

“…Otherwise is set to . When window length is set, the consequent Fourier transform is performed for every odd harmonics to extract sine and cosine Fourier coefficients of each harmonic according to (3). Then magnitude and phase of each component are calculated from coefficients according to (2).…”

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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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Motivation towards energy saving by means of IoT personal energy manager platform

Cited by 23 publications

References 18 publications

Prospects and Obstacles for Green Hydrogen Production in Russia

Prospects and Obstacles for Green Hydrogen Production in Russia

Adaptive current protection in electrical complexes with small power plants

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

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