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Incidence Matrix-based Security Constraint Unit Commitment considering Line and Unit Contingencies


Affiliations
1 Department of Economics, Islamic Azad University, Shoushtar Branch, Shoushtar, Iran, Islamic Republic of
2 Department of Electrical Engineering, Islamic Azad University, Shoushtar Branch, Shoushtar, Iran, Islamic Republic of
 

This paper presents a new approach for considering all possible contingencies in short-term power system operation. Based on this new approach, both generator and transmission line outages would be modelled in network-based power system analysis. Multi generator and also parallel transmission lines is modelled in this methodology. We also investigate this claim that feasibility and applicability of this approach is much more than the previous analytical methodologies. Security Constrained Unit commitment (SCUC) program which is carried out by Independent System Operator (ISO), is one of the complex problems which would be handled by this approach. In this paper, a DC-Optimal Power Flow (DCOPF) methodology has been considered for hourly Locational Marginal Price (LMP) calculations. This approach can be applied in market simulation and planning owing to its robustness and speed. Unlike, previous admittance based matrix methodologies, which solidly depended on the network topology, independency of network in the presented approach; it would be an effective tool for considering possible contingencies in the grid. The simulation results show that the presented method is both satisfactory and consistent with expectation.

Keywords

Incidence Matrix, Security Constrained Unit Commitment, Contingency Analysis, Independent System Operator
User

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  • Incidence Matrix-based Security Constraint Unit Commitment considering Line and Unit Contingencies

Abstract Views: 390  |  PDF Views: 93

Authors

Arash Jamalmanesh
Department of Economics, Islamic Azad University, Shoushtar Branch, Shoushtar, Iran, Islamic Republic of
Mohammad Sadegh Javadi
Department of Electrical Engineering, Islamic Azad University, Shoushtar Branch, Shoushtar, Iran, Islamic Republic of
Rahmat Azami
Department of Electrical Engineering, Islamic Azad University, Shoushtar Branch, Shoushtar, Iran, Islamic Republic of

Abstract


This paper presents a new approach for considering all possible contingencies in short-term power system operation. Based on this new approach, both generator and transmission line outages would be modelled in network-based power system analysis. Multi generator and also parallel transmission lines is modelled in this methodology. We also investigate this claim that feasibility and applicability of this approach is much more than the previous analytical methodologies. Security Constrained Unit commitment (SCUC) program which is carried out by Independent System Operator (ISO), is one of the complex problems which would be handled by this approach. In this paper, a DC-Optimal Power Flow (DCOPF) methodology has been considered for hourly Locational Marginal Price (LMP) calculations. This approach can be applied in market simulation and planning owing to its robustness and speed. Unlike, previous admittance based matrix methodologies, which solidly depended on the network topology, independency of network in the presented approach; it would be an effective tool for considering possible contingencies in the grid. The simulation results show that the presented method is both satisfactory and consistent with expectation.

Keywords


Incidence Matrix, Security Constrained Unit Commitment, Contingency Analysis, Independent System Operator

References





DOI: https://doi.org/10.17485/ijst%2F2012%2Fv5i2%2F30354