An Efficient Algorithm for Shakedown Analysis Based on Equality Constrained Sequential Quadratic Programming

2015 ◽  
pp. 177-197 ◽  
Author(s):  
Giovanni Garcea ◽  
Antonio Bilotta ◽  
Leonardo Leonetti
Keyword(s):  
Quadratic Programming ◽  
Efficient Algorithm ◽  
Sequential Quadratic Programming ◽  
Shakedown Analysis

VAR compensation by sequential quadratic programming

2003 ◽  
Vol 18 (1) ◽  
pp. 36-41 ◽  
Author(s):  
I. Perez Abril ◽  
J. Gonzelez Quintero
Keyword(s):  
Quadratic Programming ◽  
Sequential Quadratic Programming ◽  
Var Compensation

Design of evolutionary cubic spline intelligent solver for nonlinear Painlevé-I transcendent

2021 ◽  
Author(s):  
Sharafat Ali ◽  
Iftikhar Ahmad ◽  
Muhammad Asif Zahoor Raja ◽  
Siraj ul Islam Ahmad ◽  
Muhammad Shoaib
Keyword(s):  
Differential Equation ◽  
Ordinary Differential Equation ◽  
Genetic Algorithms ◽  
Statistical Analysis ◽  
Quadratic Programming ◽  
Sequential Quadratic Programming ◽  
Process Variation ◽  
Nonlinear Ordinary Differential Equation ◽  
Second Derivative ◽  
Search Technique

In this research paper, an innovative bio-inspired algorithm based on evolutionary cubic splines method (CSM) has been utilized to estimate the numerical results of nonlinear ordinary differential equation Painlevé-I. The computational mechanism is used to support the proposed technique CSM and optimize the obtained results with global search technique genetic algorithms (GAs) hybridized with sequential quadratic programming (SQP) for quick refinement. Painlevé-I is solved by the proposed technique CSM-GASQP. In this process, variation of splines is implemented for various scenarios. The CSM-GASQP produces an interpolated function that is continuous upto its second derivative. Also, splines proved to be stable than a single polynomial fitted to all points, and reduce wiggles between the tabulated points. This method provides a reliable and excellent procedure for adaptation of unknown coefficients of splines by searching globally exploiting the performance of GA-SQP algorithms. The convergence, exactness and accuracy of the proposed scheme are examined through the statistical analysis for the several independent runs.

Co-Optimization of Output and Reserve with Significant Penetration of Renewables

2013 ◽  
Vol 427-429 ◽  
pp. 341-345
Author(s):  
Xue Fei Chang ◽  
Zhe Yong Piao ◽  
Xiang Yu Lv ◽  
De Xin Li
Keyword(s):  
Quadratic Programming ◽  
Wind Power ◽  
Sequential Quadratic Programming ◽  
Renewable Generation ◽  
Renewable Sources ◽  
Reliability Level ◽  
Maximum Benefit ◽  
Proposed Model ◽  
Programming Techniques

Co-optimization of output and reserve is necessary in order to provide maximum benefit to both consumers and producers. Once renewable generation sources like wind or solar begin to make up a large proportion of the generation mix, this co-optimization becomes much more difficult since the output of renewable sources is not well-known in advance. In this paper, a uniform reliability level is used as a constraint in the process of output and reserve. The proposed model is tested on the modified 5-bus PJM system. The co-optimization is performed by sequential quadratic programming techniques. The results show that the co-optimization results are strongly related to the uncertainties of wind power, the reliability level of the system, and the reliability of generators when wind makes up a significant portion of the generation mix.

Sequential quadratic programming for non-linear elastic contact problems

1995 ◽  
Vol 38 (1) ◽  
pp. 137-165 ◽  
Author(s):  
Gunnar Björkman ◽  
Anders Klarbring ◽  
Björn Sjödin ◽  
Torbjörn Larsson ◽  
Mikael Rönnqvist
Keyword(s):  
Quadratic Programming ◽  
Sequential Quadratic Programming ◽  
Contact Problems ◽  
Elastic Contact ◽  
Linear Elastic ◽  
Non Linear
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