The creation of a decentralized low-carbon energy infrastructure is the main trend in development electric power industry many countries. Distributed generation facilities (DGs) based on gas reciprocating units (GRUs) are often built by industrial entities for efficient utilization secondary resources order to minimize environmental impact. Modern GRUs have some advantages, but they design features that should be factored when connecting them internal systems entities. Incorrect...

Modern gas-turbine units (GTUs) and gas-reciprocating (GRUs) have found a wide use at power plants, including distributed generation facilities, running on gaseous fuel. The design features of these generating considerable effect the nature parameters transient processes due to emergency disturbances in adjacent network. study shows that single-shaft do not allow even short-term frequency drops. These schemes operating conditions arise active shortages when connection between plant system...

Gas-fired reciprocating engine plants (GREPs) are widely used in power supply systems of industrial facilities, which allows for ensuring the operation electrical loads case accidents system. Operating experience attests to fact that during islanded operations, GREPs shut down by process protections or protective relays event severe disturbances. This leads complete load shedding, is accompanied losses and damage facilities. Severe disturbances include following ones: large surges on due one...

Power consumption management is crucial to maintaining the reliable operation of power grids, especially in context decarbonization electric industry. Managing industrial enterprises by personnel proved ineffective, which required development and implementation automatic energy systems. Optimization behavior requires comprehensive information on parameters technological processes an enterprise. The paper explores specific features non-stationary conditions output production assesses...

The energy transition is accompanied by developing a digital decentralized low-carbon infrastructure with renewable-based generating plants as its main elements. In 2020, 15 photovoltaic power (PVPs) an installed capacity of 364 MW were commissioned in Russia, which 21.08% the total PVP Russia. findings analysis Russia’s current regulatory and technical documents (RTD) concerning frequency active flow control are presented. They indicate that all PVPs must participate general primary (GPFC)....

Mass-scale integration of renewable power stations into distribution networks is a main trend industry development aimed at its decarbonation. All solar photovoltaic (SPVS) and wind (WPS) are connected to the existing medium- high-voltage networks, excluding large capacity photoelectric fields. Modern SPVS WPS integrated energy systems with use inverters/converters which control algorithms for output protection have be included. Critical deviations electric quality indicator (EPQI) from...

The research team has analyzed the requirements of effective standards applicable to automated undervoltage protection (AUVP) devices. paper generalizes design approaches algorithmizing and configuring AUVP It summarizes undervoltage-related processes in industrial power districts that cause system use fail prevent voltage collapse certain circuitries under parameters. is shown performance can be improved by adopting an adaptive algorithm used not only for control, but also monitoring...

The tendencies and perspective directions of development modern digital devices relay protection automation (RPA) are considered. One the promising ways to develop control systems is fundamentally new algorithms for recognizing emergency modes. They work in accordance with triggering rule, which formed after processing results model experiments. These able simultaneously a large number features or mode parameters (current, voltage, resistance, phase, etc.). Thus, multidimensional. This...

The high energy and environmental performance of renewable power stations (RPS) contributes to their widespread introduction in many countries. A trend towards decentralization generating capacities an increase the share RPS structure brings about multifactorial features that affect reliability systems. These factors can result a failure unnecessary or false operation intelligent digital devices systems perform protection automatic control functions. Digital substations using IEC 61850...

This paper analyzes the key defining features of modern electric power distribution networks industrial enterprises. It is shown that requirements set by enterprises with respect to quality parameters (PQPs) at points their connection external utilities have been becoming increasingly strict in recent years. justified high sensitivity critical electrical loads and distributed generation facilities distortions currents voltages from a pure sine wave. Significant deviations PQPs lead...

Fault location on overhead power lines achieved with the highest possible accuracy can reduce time to locate faults. This contributes ensuring stability of systems, as well reliability supply consumers. There are a number known mathematical techniques based different physical principles that used in fault and whose errors vary. uses estimation emergency state parameters, which referred distance-to-fault widely used. They employed digital protection relay terminals power-line locators....

The features of the dielectric rod defects and rod-electrod polymer insulators were investigated by using developed complex method contactless remote diagnostics high-voltage health, which includes initial detection local areas with elevated electric field gradients as well measurement a set partial discharges characteristics. radiation extra-large was detected investigated. According to results, diagram constructed for electro-physical processes that accompany emission discharges; reasons...

Electric power grids are evolving towards intellectualization such as Smart Grids or active-adaptive networks. Intelligent network implies usage of sensors, smart meters, electronic devices and sophisticated communication network. This leads to a strong dependence on information networking that prone threats cyberattacks, which challenges system reliability efficiency. Thus, significant attention should be paid the security. Recently, it has been proven False Data Injection Attacks (FDIA)...

The complication of the structure, topology and composition future electrical networks is characterized by difficult-to-recognize circuit-mode situations requires modern methods for analyzing information parameters. growing trend digitizing signals in substations use IEC 61850 standard results a huge amount new data available at nodes network. development analysis detecting recognizing modes (normal emergency) are topical research issues. article explores approach to faulted section an...

Deviations of power quality indices (PQI) from standard values in supply systems industrial consumers lead to defective products, complete shutdown production processes, and significant damage. At the same time, PQI requirements vary depending on consumer, which is due different kinds, types, composition essential electrical loads. To ensure their reliable operation, it crucial introduce automatic control devices, evaluate extent distortion sinusoidal voltage waveform a three-phase system....

The intellectualization of an electrical power system (EPS) creates a required infrastructure for the efficient transmission, distribution and consumption energy, is based on integration EPS with information networks. Significant disadvantages such are related to problems cyber security which have become particularly important in recent times. Currently, applied methods taken from technology no way connected specifics systems. purpose this article develop algorithm detect cyber-attacks...

The trend towards the decentralization and decarbonization of energy sector stimulates adoption generation facilities based on renewable sources (RES) distributed (DG) that utilize secondary resources. Operation features DG facilities, such as a high speed electromechanical transient processes significant deviations power quality indicators from standard values, require improvement an increase in automation devices. Modern electroautomatic devices must determine operating regions (normal...

At the present stage of electric power industry development, special attention is being paid to development and research new efficient energy sources. The use hydrogen fuel cells promising for remote autonomous supply systems. authors paper have developed structure determined optimal composition a hybrid generation system based on battery storage conducted studies its operating modes consumers’ efficiency. A simulation electromagnetic processes was carried out check operability proposed...

Development of Smart Grid and technology "Digital substation" makes increased requirements for automation relay protection devices. They become more complicated, expensive less reliable. New, inexpensive technologies fault location in intelligent networks are required. A new approach to the single-ended on transmission line is considered, based recognition electromagnetic traveling wave process occurring moment fault. The algorithm determining used. It uses mathematical apparatus correlation...