Multicriteria transmission congestion management by load curtailment and generation redispatch in a deregulated power system

2008 ◽  
Vol 3 (5) ◽  
pp. 524-529 ◽  
Author(s):  
Aishah Mohd Isa ◽  
Takahide Niimura ◽  
Ryuichi Yokoyama
Keyword(s):  
Power System ◽  
Congestion Management ◽  
Transmission Congestion ◽  
Deregulated Power System ◽  
Load Curtailment

scholarly journals Transmission Congestion Management Considering Modeling of Solar Photovoltaic Distributed Generator in Deregulated Power System

2019 ◽  
Vol 8 (3) ◽  
pp. 2086-2093
Keyword(s):  
Power System ◽  
Electricity Market ◽  
Power Output ◽  
Solar Irradiance ◽  
Real Life ◽  
Congestion Management ◽  
Solar Photovoltaic ◽  
Transmission Congestion ◽  
Distributed Generator ◽  
Deregulated Power System

This paper presents an effective methodology for transmission congestion management (TCM) in deregulated power system considering random nature of solar photovoltaic distributed generator (SPVDG). Solar photovoltaic power generation has gained popularity worldwide. Its’ optimal sitting in the grid can provide congestion relief and reduce line losses etc. However, to maximize the potential benefits of this renewable energy source, its’ stochastic power output which mainly depends on solar irradiance needs due consideration. In this paper, seasonal variations of solar irradiance have been modeled using beta probability density function to determine expected power output of SPVDG over various seasons of one year. TCM problem has been formulated as a non-linear programming with the objective of social welfare maximization of electricity market subject to equality and inequality constraints incorporating seasonal load demand variations. The optimal siting of SPVDG integration in the grid has been discussed. The proposed methodology has been simulated by incorporating practical data of a real-life SPVDG in standard IEEE 30-bus, IEEE 118-bus and practical Indian Utility 62-bus systems. Simulation results show the benefits of proposed methodology on market indices. The effectiveness of proposed approach is also discussed in comparison with existing methodology of distributed generation modeling

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