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This paper provides a reformulation of the scenario-based two-stage unit commitment problem under uncertainty that allows finding unit-commitment plans that perform reasonably well both in expectation and for the worst case. The proposed reformulation is based on partitioning the sample space of the uncertain factors by clustering the scenarios that approximate their probability distributions. The...
Principal Component algorithms are widely used in active control applications, specially for applications of active vibration and noise cancellation in the aerospace industry. They are known to offer good adaptability characteristics and also provide a intuitive approach to deal with actuator saturation by limiting the control only to a significant number of modes. Existing stability results for such...
Owing to the massive deployment of renewable power production units over the last couple of decades, the use of stochastic optimization methods to solve the unit commitment problem has gained increasing attention. Solving stochastic unit commitment problems in large-scale power systems requires high computational power, as stochastic models are dramatically more complex than their deterministic counterparts...
The heat and power outputs of Combined Heat and Power (CHP) units are jointly constrained. Hence, the optimal management of systems including CHP units is a multi-commodity optimization problem. Problems of this type are stochastic, owing to the uncertainty inherent both in the demand for heat and in the electricity prices that owners of CHP units receive for the power they sell in the market. In...
A control feedback system with saturation nonlinearities is said to have robustness preserving characteristics if the constrained system is as robust as its linear counterpart. Such characteristics can be desirable. It has been proved for some special cases that the anti-windup version of the Internal Model Control architecture can offer such characteristics for first-order plants with delays against...
This panel presentation is based on paper “J. M. Morales, A. J. Conejo, J. Pérez-Ruiz, Short-Term Trading for a Wind Power Producer. IEEE Transactions on Power Systems, in press, 2010.” It presents a technique to derive the best offering strategy for a wind power producer in an electricity market that includes several trading floors. Uncertainty pertaining to wind availability, market prices at the...
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