Voltage current based time inverse relay coordination for PV feed distribution systems

2016 ◽  
Author(s):  
Anubha Agrawal ◽  
Manohar Singh ◽  
M. V. Tejeswini
Keyword(s):  
Distribution Systems ◽  
Relay Coordination

Peer Review of Renewable Energy-based Adaptive Protection(s) & Relay Coordination Optimization Techniques

2020 ◽  
Vol 13 (8) ◽  
pp. 1190-1205
Author(s):  
Aayush Shrivastava ◽  
Devender K. Saini ◽  
Manjaree Pandit
Keyword(s):  
Power Systems ◽  
Comparative Study ◽  
Distribution Systems ◽  
Optimization Techniques ◽  
Environmental Benefits ◽  
Optimal Placement ◽  
Adaptive Techniques ◽  
Adaptive Protection ◽  
Power Loss Reduction ◽  
Relay Coordination

Background: Distributed Sustainable Energy Generation (DSEG) has become a leading trend in modern R&D to achieve practical, financial, and environmental benefits. With respect to the power system, the benefits are minimization of power failures, enhancement of energy quality & reliability, congestion relief, and smart/micro grid demand response. The widespread use of modern technologies encourages the use of DSEG for safe power production and power loss reduction. Besides, it also poses new challenges such as optimal placement of relays, protection device settings, and voltage control problems in power systems. : Among various solutions reported in the literature, a widely accepted solution seems to be the deployment of Fault Current Limiter (FCL) to minimize DSEG impacts. However, FCLs are an expensive option to restore relay coordination. The adaptive protection scheme provides benefits to the smart grid's advanced features and serves as an efficient solution to address new DSEG and FCL challenges. Objective: This paper presents an extensive review of the effect of DSEG on distribution systems from the safety point of view, different optimization techniques used for adaptive protections, optimal relay coordination, and merits & demerits of FCL. Methods: The paper discusses various recent optimization and hybrid optimization techniques used for solving the Optimal Relay Coordination model (ORC). Adaptive and FCL based non-adaptive techniques are also discussed to solve this model. An attempt has also been made to present a comparative study of various optimization techniques in tabular form, considering different bus models and their outcomes. Conclusion: Comparative study of these techniques shows that Water cycle optimization, hybrid whale-GWO and GSA-SQP algorithms give better results in solving the ORC problem. FCL based non-adaptive technique was found better as compared with adaptive techniques because a greater number of DGs can be integrated on a grid with less complexity.

Implementation of adaptive relay coordination in distribution systems including distributed generation

2016 ◽  
Vol 112 ◽  
pp. 2697-2705 ◽  
Author(s):  
Yavuz Ates ◽  
Mehmet Uzunoglu ◽  
Arif Karakas ◽  
Ali Rifat Boynuegri ◽  
Abdullah Nadar ◽  
...  
Keyword(s):  
Distributed Generation ◽  
Distribution Systems ◽  
Relay Coordination

scholarly journals Linear programming technique based optimal relay coordination in a radial distribution system

2018 ◽  
Vol 7 (1.8) ◽  
pp. 51
Author(s):  
G. V. Nagesh Kumar ◽  
B. Sravana Kumar ◽  
B. Venkateswara Rao ◽  
P. V. S. Sobhan ◽  
K. Appala Naidu
Keyword(s):  
Linear Programming ◽  
Radial Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Inequality Constraints ◽  
Programming Technique ◽  
Radial Distribution System ◽  
Dial Setting ◽  
Relay Coordination ◽  
Different Types

Now-a-days to ensure power continuity and system’s reliability the protection system is to be designed properly for distribution systems to handle the faults to avoiding the damage to the equipments and to the service engineers. Different types of relays with different working principles are used to detect different types of faults in the system. In order to avoid mal operation of relays, proper coordination is to be carried out. The objective of this paper is to maintain the relay coordination as well as to decrease the working time of relays by optimizing the values of time dial setting (TDS) using linear programming problem technique (LPP). The inequality constraints guarantee the coordination margin for each primary or backup relay pairs having a fault very close to the primary relay. Simulation is carried out on a IEEE 15 bus balanced radial distribution system with 3 different types of relays namely standard inverse, extremely inverse and very inverse relay and the results are presented and analyzed.

An Ontological Approach to Water Distribution Systems Management

WRPMD'99 ◽  
1999 ◽  
Author(s):  
P. Costa ◽  
A. Esposito ◽  
C. Gualtieri ◽  
D. Pianese ◽  
G. Pulci Doria ◽  
...  
Keyword(s):  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems ◽  
Systems Management ◽  
Ontological Approach
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