Intelligent Load Shedding Scheme Research Articles

Modeling and Optimization of a Community Microgrid Components

The modeling and optimization of a community microgrid situated in an urban area is presented in this paper. Such communities include places like housing estates, large hospital complexes, large residential complexes, and universities of higher learning. The case study used in this work is a housing estate situated in Cape Town, South Africa. Distributed energy resources used in the study are diesel generators, rooftop solar photovoltaic system, and the electrical load that is segmented into critical and non-critical type. The segmentation of the load allows an intelligent load shedding scheme in order to maintain the stability of the overall system. HOMER modeling software environment is used to model and optimize the community microgrid component sizes for technical and economic feasibility. An optional grid-connected mode as a backup energy system is evaluated against the grid-forming mode of the community microgrid system. Simulation results are obtained and discussed. Conclusion of decision-making about using a grid-forming microgrid system or grid-connected-PV is presented.

The Existing Investigation and Prospect of Under-Frequency and Under-Voltage Load Shedding in Power Systems

Under-frequency load shedding (UFLS) and under-voltage load shedding (UVLS) as the last defense of the power system to maintain its stability are of great significance, especially for the current development of large-scale interconnected power system. At first, this paper presents the existing methods of load shedding and analyses their drawbacks. Then, a brief overview of the application of wide area measurement system (WAMS) in UFLS and UVLS is provided. Finally, a novel intelligent load shedding scheme which realizes load adjustment instead of load shedding based on the characteristics of smart grid and smart home is proposed.

Intelligent Load Shedding Using TCP/IP for Smart Grids

Computerized power management system with fast and optimal communication network overcomes all major discrepancies of undue or inadequate load relief that were present in old conventional systems. This paper presents the basic perception and methodology of modern and true intelligent load shedding scheme in micro grids topology by employing TCP/IP protocol for fast and intelligent switching. The network understudy performs load management and power distribution intelligently in a unified network. Generated power is efficiently distributed among local loads through fast communication system of server in the form of source and clients in the form of loads through TCP/IP. The efficient use of information between server and clients enables to astutely control the load shedding in a power system of micro grids system. The processing time of above stated system comes out to be 10 ms faster than others which ensure very less delay as compared to conventional methods. The Micro Grids system operating through TCP/IP control has been implemented in MATLAB/SIMULINK and results have been verified.