Results 291 to 300 of about 5,110,699 (336)

MULTILEVEL UNIT COMMITMENT IN SMART GRIDS

Proceedings of the 1st International Conference on Operations Research and Enterprise Systems, 2012
This paper focuses on the planning of electricity resources in the developing electricity infrastructure. First we model the existing infrastructure and extend this model to a smart grid infrastructure, where we focus on the large scale introduction of small electricity generators, leading to generation possibilities at both ends of the electricity ...
Bosman, M.G.C., Molderink, Albert, Bakker, Vincent, Smit, Gerardus Johannes Maria, Hurink, Johann L.   +4 more
openaire   +1 more source

Operation of a High Renewable Penetrated Power System With CSP Plants: A Look-Ahead Stochastic Unit Commitment Model

IEEE Transactions on Power Systems, 2019
The integration of variable renewable energy (VRE) generation, i.e., wind power and solar photovoltaic, brings significant uncertainty for the power system operation.
Ershun Du, Ning Zhang, B. Hodge, Qin Wang, Zongxiang Lu, C. Kang, B. Kroposki, Q. Xia   +7 more
semanticscholar   +1 more source

Security-Constrained Unit Commitment With Natural Gas Pipeline Transient Constraints

IEEE Transactions on Smart Grid, 2020
The interdependencies of power systems and natural gas networks have increased due to the additional installations of more environmental-friendly and fast-ramping natural gas power plants.
Sobhan Badakhshan, M. Ehsan, M. Shahidehpour, N. Hajibandeh, M. Shafie‐khah, J. Catalão   +5 more
semanticscholar   +1 more source

An Analytic Approach to Unit Commitment

IFAC Proceedings Volumes, 1987
Abstract Unit commitment in electric power systems is a mixed integer programming problem which because of its high complexity has been approached primarily through numerical methods. Few general analytic results exist which shed light on the manner in which units are committed.
F.D. Galiana, F. Zhuang, A. Meriched, R. Calderon   +3 more
openaire   +1 more source

A High-Efficiency Network-Constrained Clustered Unit Commitment Model for Power System Planning Studies

IEEE Transactions on Power Systems, 2019
The increasing complexity of power systems, particularly the high renewable energy penetration, raises the necessity of incorporating detailed power system operation models into long-term planning studies.
Ershun Du, Ning Zhang, C. Kang, Q. Xia
semanticscholar   +1 more source

Security Constrained Unit Commitment

IEEE Transactions on Power Apparatus and Systems, 1971
A method is described for determining the most economical generating utiit commitment policy and loading schedule for a day's operation of an electric utility system while maintaining a desired level of system reliability.
openaire   +1 more source

Unit Commitment With Ideal and Generic Energy Storage Units

IEEE Transactions on Power Systems, 2014
Intermittence and variability of renewable resources is often a barrier to their large scale integration into power systems. We propose a stochastic real-time unit commitment to deal with the stochasticity and intermittence of non-dispatchable renewable resources including ideal and generic energy storage devices.
Pozo, David, Contreras, J., Sauma Santis, Enzo Enrique   +2 more
openaire   +2 more sources

Unit commitment using stochastic optimization

Proceedings of International Conference on Intelligent System Application to Power Systems, 2002
This paper demonstrates how the simulated annealing algorithm and genetic algorithms can be used as means to solve the power system unit commitment problem. In addition, this paper presents parallel approaches to speed up the computational requirement of the simulated annealing algorithm. The algorithms were tested with two different problems.
T. Numnonda, U.D. Annakkage, N.C. Pahalawaththa   +2 more
openaire   +1 more source

Unit commitment by simulated annealing

IEEE Transactions on Power Systems, 1990
A general optimization method, known as simulated annealing, is applied to generation unit commitment. By exploiting the resemblance between a minimization process and the cooling of a molten metal, simulated annealing generates feasible solutions randomly and moves among these solutions using a strategy leading to a global minimum with high ...
F. Zhuang, F.D. Galiana
openaire   +1 more source

Unit commitment by genetic algorithms

IEEE PES Power Systems Conference and Exposition, 2004., 2005
This paper presents an application of the genetic algorithms (GA) method for the unit commitment problem. Genetic algorithms (GA's) are a general purpose optimization technique based on principle of natural selection and natural genetics. The Lagrangian relaxation (LR) method provides a fast solution but it may suffer from numerical convergence and ...
V. Shanthi, A.E. Jeyakmar
openaire   +1 more source