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Security Cost Analysis with Linear Ramp Model using Contingency Constrained Optimal Power Flow
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 Title & Authors
Security Cost Analysis with Linear Ramp Model using Contingency Constrained Optimal Power Flow
Lyu, Jae-kun; Kim, Mun-Kyeom; Park, Jong-Keun;
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 Abstract
This paper proposes a novel technique for calculating the security costs that properly includes ramping constraints in the operation of a deregulated power system. The ramping process is modeled by a piecewise linear function with certain assumptions. During this process, a ramping cost is incurred if the permissible limits are exceeded. The optimal production costs of the power producers are calculated with the ramping cost included, considering a time horizon with N-1 contingency cases using contingency constrained optimal power flow (CCOPF), which is solved by the primal-dual interior point method (PDIPM). A contingency analysis is also performed taking into account the severity index of transmission line outages and its sensitivity analysis. The results from an illustrative case study based on the IEEE 30-bus system are analyzed. One attractive feature of the proposed approach is that an optimal solution is more realistic than the conventional approach because it satisfies physical constraints, such as the ramping constraint.
 Keywords
security cost;piecewise linear ramping model;optimal power flow;interior point method;
 Language
English
 Cited by
1.
A new approach to security-constrained generation scheduling of large-scale power systems with a piecewise linear ramping model, International Journal of Electrical Power & Energy Systems, 2012, 34, 1, 121  crossref(new windwow)
2.
Total transfer capability computation using small signal stability-based security constrained optimal power flow, European Transactions on Electrical Power, 2011, 21, 1, 877  crossref(new windwow)
3.
Market-clearing for pricing system security based on voltage stability criteria, Energy, 2011, 36, 2, 1255  crossref(new windwow)
4.
Decomposition–coordination strategy to improve power transfer capability of interconnected systems, International Journal of Electrical Power & Energy Systems, 2011, 33, 10, 1638  crossref(new windwow)
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