An adaptive protection system based on planed island for distribution system with DG

2006 ◽  
Author(s):  
Yuping Lu ◽  
Xia Lin ◽  
Shan Gao ◽  
Lidan Hua ◽  
Xinjia Wu
Keyword(s):  
Distribution System ◽  
Protection System ◽  
Adaptive Protection

Adaptive Protection System for Microgrids: Protection practices of a functional microgrid system.

2014 ◽  
Vol 2 (1) ◽  
pp. 66-80 ◽  
Author(s):  
Liang Che ◽  
Mohammad E. Khodayar ◽  
Mohammad Shahidehpour
Keyword(s):  
Protection System ◽  
Adaptive Protection

scholarly journals Laboratory Test Bed for Analyzing Fault-Detection Reaction Times of Protection Relays in Different Substation Topologies

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2482 ◽  
Author(s):  
Goran Jurišić ◽  
Juraj Havelka ◽  
Tomislav Capuder ◽  
Stjepan Sučić
Keyword(s):  
Distribution System ◽  
Information Exchange ◽  
Transition Period ◽  
Reaction Times ◽  
Energy Transition ◽  
Test System ◽  
Protection System ◽  
International Electrotechnical Commission ◽  
Test Bed ◽  
Iec 61850

Visions of energy transition focus on activating end users, meaning that numerous flexible-distribution network-level devices become active participants in power-system operations. This implies a fast, reliable, and secure exchange of data, enabling the distribution-system operators to maintain, or even improve, the quality and delivery of service. With the introduction of the International Electrotechnical Commission (IEC) 61850 standard, the path is set for a single communication topology covering all substation levels. The standard has the potential to change the way substations are designed, built, tested, and maintained. This means that the key segment of the substation, its protection system, will go through a transition period with the end goal of having a digitized substation where all information exchange is performed over an Ethernet communication bus. This paper analyzes the performance impact of the IEC 61850-9-2LE on the protection system. To do this, a laboratory hardware-in-the-loop test setup was developed representing traditional-, hybrid-, and digital-substation topology. The setup serves to simulate faults and create transient waveforms in an extended IEEE 123-node test system, which is then used to detect the reaction times of protection relay devices. To verify the results, a significant number of tests was performed clearly showing the benefits of digitalizing the distribution system.

Parameters formalization of adaptive protection system for automated communication control system

Trudy MAI ◽  
2020 ◽  
pp. 17-17
Author(s):  
Vladimir Filatov ◽  
Andrey Bonch-Bruevich ◽  
Evgeny Khokhlachev ◽  
Alexandra Borukaeva ◽  
Pavel Berdikov
Keyword(s):  
Control System ◽  
Protection System ◽  
Adaptive Protection ◽  
Communication Control

Application of harmonized fighting system against pomegranate orchard

2019 ◽  
Vol 8 ◽  
Author(s):  
Mirzaeva S.A ◽  
M.X Kambarova ◽  
M.U Irgashev ◽  
M.B Rasulova
Keyword(s):  
Protection System ◽  
Adaptive Protection ◽  
Pomegranate Fruit

 Pomegranate fruit is a monophage, and at the same time is also a typical carpophage, that is, the fruit is a moth. During the season, the pomegranate fruit develops from the 5th generation in full and in part from the 6th generation. In order to protect the pomegranate from pomegranate fruit, it is desirable to support all methods of the adaptive protection system (in particular: organizational-economic, agrotechnical, physico-mechanical, biological and chemical), bringing the number of pests to IZMM and below.

Protection Scheme for Distribution Network with Distributed Generation

2014 ◽  
Vol 960-961 ◽  
pp. 1376-1380
Author(s):  
Chong Xin Xu ◽  
Yan Jun Jiao
Keyword(s):  
Power Generation ◽  
Distributed Generation ◽  
Distribution System ◽  
Distribution Network ◽  
Protection System ◽  
Protection Scheme ◽  
Network Protection ◽  
New Energy ◽  
Comprehensive Judgment

Power generation becomes a main way of using new energy. However, the access of distributed generation(DG) causes the ordinary protection system develop a series of problems. In this paper, the structure of distribution network with DG is introduced firstly.Secondly,it is analysed that the effect that DG brings to distribution network protection, and then a new protection scheme of distribution network with DG is put forward. The segment I, II of direction three-current protection on the line which is at the upstream of DG, and the next line’s segment I, II consists of a simple communication unit. Through the comprehensive judgment of two protections’ action results, fault can be isolated in minimum range quickly and accurately. Finally, the correctness and feasibility of the new protection principle are verified by simulating a 10KV distribution system.

scholarly journals Sistem Proteksi Motor Induksi 3 Fasa Terhadap Bermacam Gangguan Menggunakan Mikrokontroller

2020 ◽  
Vol 10 (1) ◽  
pp. 9-17
Author(s):  
Darmawansyah Darmawansyah ◽  
M Khairul Amri Rosa ◽  
Ika Novia Anggraini
Keyword(s):  
Distribution System ◽  
Induction Motors ◽  
Electrical Equipment ◽  
Electric Power System ◽  
Protection System ◽  
Voltage Unbalance ◽  
Current Voltage ◽  
Three Phase ◽  
Unbalanced Voltage ◽  
Unbalance Voltage

ABSTRACTIn the current era of globalization, various human jobs depend on electrical equipment such as three-phase induction motors. Three-phase induction motors are very important to use according to their roles and functions. The occurrence of voltage variations in the electric power system is due to the magnitude of the voltages between the three phases which are not the same so that there are differences in the angle of the R, S and T phases, which causes an uneven load overload in the electrical distribution system. Among the disturbances that can occur are overvoltage, under voltage, unbalance voltage between phases, overload, and overheating. Based on these problems, a three-phase induction motor protection system was designed, the system uses current, voltage, temperature sensors, which functions to measure the value when a disturbance occurs, a magnetic contactor as a breaker and a liaison when the disturbance is given in accordance with the set point value given to the microcontroller. The results of the research for unbalanced voltage of V1 112 V, V2 114 V, V3 108 V, overvoltage of V1 228 V, V2 207 V, V3 264 V, over current of A1 104 A, A2 107 A, A3 0.77 A , the overload on the resistance source is 333 ?, 250 ?, 200 ?, 167 ?, and the overheating is 40.75 ºC at 6.5 minutes with tripping conditions in each test. The final results of this study indicate that the protection system which is designed is better used for three-phase induction motors.Keywords: unbalaced, disturbances, protection systems, sensors, magnetic contactor, microcontroller.

scholarly journals Adaptive Protection Algorithm for Overcurrent Relay in Distribution System with DG

2013 ◽  
Vol 8 (5) ◽  
pp. 1002-1011 ◽  
Author(s):  
Byung Chul Sung ◽  
Soo Hyoung Lee ◽  
Jung-Wook Park ◽  
A.P.S. Meliopoulos
Keyword(s):  
Distribution System ◽  
Adaptive Protection ◽  
Overcurrent Relay
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