作者：
Kuznetsov, Andrey A.Volchanina, Maria A.Gorlov, Anton V.
Department 'Theoretical electrical engineering' Omsk Russia
Department 'Automation and control systems' Omsk Russia
'Theoretical electrical engineering' Omsk Russia
The article discusses the use of discrete wavelet transform in diagnosing power oil-filled transformers using automated acoustic monitoring tools. The article is based on the results of experiments using a simulator w...
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The future medium-voltage (MV) distribution system will see more Distributed Energy Resources (DERs) and a higher proliferation of multi-vendor Intelligent Electronic Devices (IEDs) for node monitoring and feeder prot...
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ISBN:
(纸本)9798350351293;9798350351286
The future medium-voltage (MV) distribution system will see more Distributed Energy Resources (DERs) and a higher proliferation of multi-vendor Intelligent Electronic Devices (IEDs) for node monitoring and feeder protection against faults. Recently, the IEC 61850 standard Generic Object Oriented Substation Event (GOOSE) protocol has been widely deployed for real-time monitoring, substation automation, and interoperability in power systems. However, the reliability of IEDs and GOOSE communication is critical due to evolving cyber-threats;this urgency stresses the importance of cyber-physical models to analyse the operational compatibility and vulnerabilities prior to deployment in the grid. This paper developed a Cyber-Physical Testbed that integrates a feeder protection relay (SEL-751) and Real-Time automation Controller (SEL-3350 RTAC) with a high-fidelity Real-Time Digital Simulator (RTDS) via the GOOSE protocol. The feasibility of the testbed is validated with the RTDS in benchmark CIGRE European MV network, and performance is evaluated in two operating scenarios: steady-state and bolted 3-phase fault;and subsequently, frequency, active power, voltage, current and circuit breaker status were monitored in RTAC. Upon successful validation, the testbed is fit for applications such as assessing cyber-threats, testing control algorithms and resiliency;it also serves as a foundation for researchers and automation engineers who are new to IEC 61850 GOOSE.
This paper focuses on the research of low-power consumption control for wireless sensor networks in coal mine roof and floor monitoring. Considering the characteristics of coal mine roof and floor sensors, which requi...
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In order to solve the problem of low control accuracy in traditional grasping operation path control methods, this paper proposes an automatic control method for mobile robotic arm grasping operation path based on Cos...
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Due to the increasing share of photovoltaic (PV) power generation in the power grid, the accuracy of PV power prediction can substantially affect the efficiency of power dispatch. In order to solve the problem of high...
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This paper presents a technique and method for the rapid digitization of models in the construction phase. Combining existing information about the power line attributes and model libraries, the paper utilizes laser p...
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Distribution network automation equipment has been widely installed and used in the power grid, which plays a very important role in improving the reliability and quality of power supply. However, due to the wide rang...
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Distribution network automation equipment has been widely installed and used in the power grid, which plays a very important role in improving the reliability and quality of power supply. However, due to the wide range of distribution network automation equipment points, poor operating environment, and a large workload of inspection and maintenance of operating units, it is urgent to take the initiative to find defects through technical means, so as to warn and eliminate equipment defects and hidden dangers in advance, and achieve rapid fault location and isolation. In order to meet the requirements of transforming electric power network into digital, networked and intelligent new power system, an intelligent operation, maintenance and communication device of distribution network is proposed. The device supports wireless 5G, wired Ethernet, Bluetooth and other communication modes, and has a variety of communication interfaces such as RJ45, RS485 and RS232. It can adapt to various external devices according to application scenarios. The software supports intelligent operation and maintenance functions such as distribution network device status data collection, device defect management and control, and device local Bluetooth operation and maintenance, and supports IPSec tunnel encryption mode, which meets the intelligent operation and maintenance and encrypted communication requirements of distribution network automation devices, and effectively improves the digitalization and intelligent features of distribution network automation devices. The device has been tested by the third party testing organization and has high operating stability.
In view of the situation that intermittent power sources such as photovoltaic and fan are used as the power supply for recovery of distribution system. Firstly, a criterion for the complementary joint operation of pow...
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This research study compares two optimization techniques for improving voltage stability in Radial Distribution Systems (RDS) through optimal capacitor allocation: the Fruit Fly Algorithm (FFA) and the innovative Ant ...
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In this paper, a new short-term forecasting model for wind power is proposed. Firstly, the wavelet threshold denoising method is used to process the data, and the optimal number of wavelet decomposition layers is dete...
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