scholarly journals Investigation of the Impact of Distributed Generation on Power System Protection

2021 ◽  
Vol 6 (2) ◽  
pp. 324-331
Author(s):  
Ayoade F. Agbetuyi ◽  
Owolabi Bango ◽  
Ademola Abdulkareem ◽  
Ayokunle Awelewa ◽  
Tobiloba Somefun ◽  
...  
Keyword(s):  
Power System ◽  
Distributed Generation ◽  
Power System Protection ◽  
System Protection ◽  
The Impact

scholarly journals The HTS Cable Under Fault Conditions in a Power System

10.29007/13mm ◽  
2018 ◽  
Author(s):  
Tarun Patel ◽  
Anuradha Deshpande
Keyword(s):  
Power System ◽  
Electric Power ◽  
Current Level ◽  
Fault Current ◽  
Power System Protection ◽  
Power Demand ◽  
System Protection ◽  
Different Types ◽  
Increasing Demand ◽  
The Impact

In today’s world electric power demand is increase steadily. In order to meet this increasing demand superconducting cable can be use instead of conventional AC cable in the power system. The Superconducting cable has some different characteristic than conventional AC cable. If this cable is installed in the power system, then there are some effects introduced on the fault current level. These effects on the fault current level can further have an impact on the power system protection. So there is a need to analyze the impact of a superconducting cable on power system protection and determine its impedance under a fault condition. This paper presents the impacts of the fault current level on a superconducting cable under fault condition in power system. Different types of fault are present in this paper like LG fault, LL fault, LLG fault, LLL fault.

scholarly journals Increment of Fault Current due to integration of Distributed Generation and its impact on Distribution Network Protection

2021 ◽  
Author(s):  
Haymanot Takele Mekonnen
Keyword(s):  
Power System ◽  
Distributed Generation ◽  
Distribution System ◽  
Distribution Network ◽  
Fault Current ◽  
Power System Protection ◽  
Power Distribution System ◽  
System Protection ◽  
Network Protection ◽  
Three Phase

Abstract BackgroundOne of the new technologies in generating power near the distribution system is called distributed generation which has supportive and destructive characteristics to the power system protection. One of the destructive characteristics of distributed generation is increasing the level of fault current to the protective equipment of the power system. In addition to increment of fault, it also alters the radial nature of the power distribution system and cause the power bidirectional rather than unidirectional. Integration of distributed generation to the distribution network causes increment of fault current effect, reliability drop, and affects security of protection system. The level of failure of protection be contingent on type, size, location and number of distributed generation. This fault current can cause a great damage to the electrical equipment with the miss operations of protective devices. The main aim of this paper is analysis of the fault current level to the protection of distribution network due to the integration of distributed generation which concerns on solar distributed generation, wind distributed generation and combination of solar and wind distributed generations at a time. This paper conducts the analysis for the increment of fault current by the integration of distributed generation and its impact on distribution network protection. ResultsThe analysis and the modeling are conducted on the 15KV distribution network of the radial feeder in Debre Markos town. This paper has covered the ling to ground, line to line and three phase fault analysis and their impact on the protection of distribution system for the wind and solar distributed generation types. After the integration of the distributed generation the fault current is increased by 0.529KA for three phase, 0.74KA for line to ground, 0.467KA for line to line and 0.523KA for line to line to ground. ConclusionsThis paper confirms designing distribution network without forecasting the future demand of electric power users give the protection equipment additional requirement. As the result, the fault current after the integration of distributed generation to the distribution network have great value in terms of power system protection.

scholarly journals Review dan Resetting Skema Overload Shadding Interbus Transformer 500/150 kV 1,3 Gandul dan 2 Kembangan

2020 ◽  
Vol 12 (1) ◽  
pp. 32-42
Author(s):  
Ibnu Hajar ◽  
Muhammad Ridho
Keyword(s):  
Power System ◽  
Qualitative Method ◽  
Load Shedding ◽  
Second Step ◽  
Power System Protection ◽  
System Protection ◽  
Initial Setting ◽  
The Impact ◽  
Secondary Side

Power system protection is one of the most important aspect in power system operation. Power system protection is an attempt to widely prevent the fault over the whole system. One of the power system protection schemes that have been applied by PT. PLN (Persero) to 150 kV Jawa Bali subsystem is Over Load Shedding of Interbus Transformer 500/150 kV. Over Load Shedding scheme has correctly to be set to prevent overload on secondary side of IBT 500/150 kV. Black Out occured on January 2, 2018 at 150 kV subsystem of 1,3 Gandul – 2 Kembangan – Muara Karang is one of the impact caused by incorrect-setting of Over Load Shedding scheme. The purposes of this research are to review the initial setting of Over Load Shedding scheme and to reset it as a follow-up of Black Out event occured in this subsystem. This research uses qualitative method by analyzing the overload points obtained by the simulation of DIgSILENT 14.3.1. This thesis results the new Over Load Scheme setting of IBT 500/150 kV 1 and 3 Gandul those are 3 seconds of pick-up times for the first step and 3,5 seconds of pick-up times for the second step wherein 410,98 MW is necessarily to be shed in 2 steps. Meanwhile, the new Over Load Shedding setting of IBT 500/150kV 2 Kembangan are 2 seconds of pick-up times for the first step and 2,5 seconds of pick-up times for the second step wherein 378,23 MW is necessarily to be shed in 2 steps.

PV based distributed generation power system protection: A review

2018 ◽  
Vol 24 ◽  
pp. 33-40 ◽  
Author(s):  
Hermanus L.R. van der Walt ◽  
Ramesh C. Bansal ◽  
Raj Naidoo
Keyword(s):  
Power System ◽  
Distributed Generation ◽  
Power System Protection ◽  
System Protection ◽  
Generation Power

Developments in Power-System Protection

IEE Review ◽  
1989 ◽  
Vol 35 (6) ◽  
pp. 220
Author(s):  
J.H. Naylor
Keyword(s):  
Power System ◽  
Power System Protection ◽  
System Protection
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