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The timing and the locational values of operating reserves (ORs) need to be rewarded to improve reserve deliverability and adequate incentive for flexible generating resources in a transmission network. An enhanced deterministic unit commitment model incorporated with hourly updated zonal operating reserve demand curves (Z-ORDCs) is proposed in this paper. Reserve zones are defined by the approach...
Higher variable renewable generation penetrations are occurring throughout the world on different power systems. These resources increase the variability and uncertainty on the system which must be accommodated by an increase in the flexibility of the system resources in order to maintain reliability. Many scheduling strategies have been discussed and introduced to ensure that this flexibility is...
A Regional Transmission Organization must operate the system in a fashion that allows it to maintain the power balance in a cost effective fashion. It must be able to respond to variations and uncertainty in demand and in supplies from moment to moment. Operating reserves have traditionally been used for this purpose. Given the increasing penetration of renewable generation resources such as wind,...
In this paper it is presented a formulation for the DC optimal power flow problem considering load and generation cost uncertainties and the corresponding solution algorithms. The paper also details the algorithms implemented to allow the integration of losses on the results as well the algorithm developed to compute the nodal marginal price in the presence of such uncertainties. Since loads and generation...
Marginal prices have been recognized as the core approach to the economic evaluation of generation and transmission services in an electricity market environment. In this context, this paper presents the new fuzzy optimal power flow algorithm as a model to addresses the impact of load and generation cost uncertainties in nodal marginal prices. Since loads and generation costs are represented by fuzzy...
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