scholarly journals Load Shedding Application within a Microgrid to Assure Its Dynamic Performance during Its Transition to the Islanded Mode of Operation

2013 ◽  
Vol 05 (07) ◽  
pp. 437-445 ◽  
Author(s):  
Dorel Soares Ramos ◽  
Tesoro Elena Del Carpio-Huayllas ◽  
Ricardo Leon Vasquez-Arnez
Keyword(s):  
Dynamic Performance ◽  
Load Shedding ◽  
Mode Of Operation ◽  
Islanded Mode

scholarly journals Overvoltage Condition Assessment of a Microgrid Due to Faults Occurring in the Islanded Mode of Operation

2015 ◽  
Vol 07 (11) ◽  
pp. 525-534 ◽  
Author(s):  
Ricardo Leon Vasquez-Arnez ◽  
Dorel Soares Ramos ◽  
Tesoro Elena Del Carpio Huayllas
Keyword(s):  
Condition Assessment ◽  
Mode Of Operation ◽  
Islanded Mode

scholarly journals Load Shedding in Microgrids with Consideration of Voltage Quality Improvement

2021 ◽  
Vol 11 (1) ◽  
pp. 6680-6686
Author(s):  
T. Le ◽  
B. L. Nguyen Phung
Keyword(s):  
Energy Resource ◽  
Load Shedding ◽  
Power Sources ◽  
Voltage Quality ◽  
System Collapse ◽  
Core Ability ◽  
Load Curtailment ◽  
Islanded Mode ◽  
Sustainable Power

Microgrids have become more and more popular their usefulness as a renewable energy resource has been recognized. The core ability and promise of microgrids is addressing the environmental concerns due to climate change that have been growing during recent years. The innovation of microgrids is that they are designed to operate either in island mode or interconnected with the main grid system. However, when the microgrid operates in islanded mode, faults may occur which can cause system collapse or even blackout. Load curtailment schemes can be utilized to decrease the quantity of associated load to a level that can be securely supported by accessible generation in isolated mode. The main goal of this research is to evaluate the optimal amount of shedding power considering sustainable power sources, with the help of primary and secondary adjustments of the generator to restore the frequency to the allowed range. Particle Swarm Optimization algorithm is applied in this paper to determine the distributed shedding power on each demand load bus which can improve the voltage quality of the isolated microgrid system. The effectiveness of the proposed method is demonstrated through the simulation of IEEE 16- bus microgrid.

Enhancement of Voltage Stability of DC Smart Grid During Islanded Mode by Load Shedding Scheme

2015 ◽  
Vol 16 (5) ◽  
pp. 491-501 ◽  
Author(s):  
Thabit Salim Nassor ◽  
Tomonobu Senjyu ◽  
Atsushi Yona
Keyword(s):  
Smart Grid ◽  
Voltage Stability ◽  
Load Shedding ◽  
Resonant Converters ◽  
Renewable Energy Resources ◽  
Dual Active Bridge ◽  
Logic Control ◽  
Series Resonant ◽  
Islanded Mode ◽  
Grid Operation

Abstract This paper presents the voltage stability of a DC smart grid based on renewable energy resources during grid connected and isolated modes. During the islanded mode the load shedding, based on the state of charge of the battery and distribution line voltage, was proposed for voltage stability and reservation of critical load power. The analyzed power system comprises a wind turbine, a photovoltaic generator, storage battery as controllable load, DC loads, and power converters. A fuzzy logic control strategy was applied for power consumption control of controllable loads and the grid-connected dual active bridge series resonant converters. The proposed DC Smart Grid operation has been verified by simulation using MATLAB® and PLECS® Blockset. The obtained results show the effectiveness of the proposed method.

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