Predispatch Linear System Solution With Preconditioned Iterative Methods

Primal-dual interior point method is used to minimize the predispatch generation costs and transmission losses on short-term operation planning of hydrothermal power systems with previously scheduled maneuvers and ramp rate constraints. Despite the efficiency shown by interior point methods for very...

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Bibliographic Details
Published in:Journal of control, automation & electrical systems automation & electrical systems, 2021-02, Vol.32 (1), p.145-152
Main Authors: Carvalho, Silvia M. S., Oliveira, Aurelio R. L., Coelho, Mayk. V.
Format: Article
Language:English
Subjects:
Control
Control and Systems Theory
Electrical Engineering
Engineering
Mechatronics
Robotics
Robotics and Automation
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Summary:Primal-dual interior point method is used to minimize the predispatch generation costs and transmission losses on short-term operation planning of hydrothermal power systems with previously scheduled maneuvers and ramp rate constraints. Despite the efficiency shown by interior point methods for very large-scale problems, they generally perform only reasonably when applied to multiple-dimensional flow problems, the new specialized interior point algorithm performed here, overcomes this disadvantage. This specialization uses the preconditioned conjugated gradient method with an incomplete Cholesky factorization to solve a linear system in each iteration of the algorithm. The preconditioner developed exploring the structure of the problem is fundamental to ensure the efficiency of the method.
ISSN:2195-3880
2195-3899
DOI:10.1007/s40313-020-00659-9