Many-Valued and Fuzzy Logics

2015 ◽  
pp. 7-29 ◽  
Author(s):  
Siegfried Gottwald
Keyword(s):  
Fuzzy Logics

Modeling and Solution Techniques Used for Hydro Generation Scheduling

Water ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1392 ◽  
Author(s):  
Iram Parvez ◽  
JianJian Shen ◽  
Mehran Khan ◽  
Chuntian Cheng
Keyword(s):  
Genetic Algorithm ◽  
Dynamic Programming ◽  
Stochastic Programming ◽  
Short Interval ◽  
Optimization Techniques ◽  
Mixed Integer ◽  
Fuzzy Logics ◽  
Spinning Reserve ◽  
Lagrange Relaxation ◽  
Generation Scheduling

The hydro generation scheduling problem has a unit commitment sub-problem which deals with start-up/shut-down costs related hydropower units. Hydro power is the only renewable energy source for many countries, so there is a need to find better methods which give optimal hydro scheduling. In this paper, the different optimization techniques like lagrange relaxation, augmented lagrange relaxation, mixed integer programming methods, heuristic methods like genetic algorithm, fuzzy logics, nonlinear approach, stochastic programming and dynamic programming techniques are discussed. The lagrange relaxation approach deals with constraints of pumped storage hydro plants and gives efficient results. Dynamic programming handles simple constraints and it is easily adaptable but its major drawback is curse of dimensionality. However, the mixed integer nonlinear programming, mixed integer linear programming, sequential lagrange and non-linear approach deals with network constraints and head sensitive cascaded hydropower plants. The stochastic programming, fuzzy logics and simulated annealing is helpful in satisfying the ramping rate, spinning reserve and power balance constraints. Genetic algorithm has the ability to obtain the results in a short interval. Fuzzy logic never needs a mathematical formulation but it is very complex. Future work is also suggested.

scholarly journals Generalized continuous and left-continuous t-norms arising from algebraic semantics for fuzzy logics

2010 ◽  
Vol 180 (8) ◽  
pp. 1354-1372 ◽  
Author(s):  
Carles Noguera ◽  
Francesc Esteva ◽  
Lluís Godo
Keyword(s):  
Algebraic Semantics ◽  
Fuzzy Logics

scholarly journals Exploring Paraconsistency in Degree-Preserving Fuzzy Logics

2013 ◽  
Author(s):  
Rodolfo Ertola ◽  
Francesc Esteva ◽  
Tommaso Flaminio ◽  
Lluis Godo ◽  
Carles Noguera
Keyword(s):  
Fuzzy Logics

A Note on Saturated Models for Many-Valued Logics

2015 ◽  
Vol 65 (4) ◽  
Author(s):  
Tommaso Flaminio ◽  
Matteo Bianchi
Keyword(s):  
Representation Theorem ◽  
Amalgamation Property ◽  
Short Paper ◽  
Fuzzy Logics ◽  
Saturated Models ◽  
Joint Embedding ◽  
Joint Embedding Property

AbstractIn this short paper we will discuss on saturated and κ-saturated models of many-valued (t-norm based fuzzy) logics. Using these peculiar structures we show a representation theorem à la Di Nola for several classes of algebras including MV, Gödel, product, BL, NM and WNM-algebras. Then, still using (κ)-saturated algebras, we finally show that some relevant subclasses of algebras related to many-valued logics also enjoy the joint embedding property and the amalgamation property.

Many-Valued Logics, Fuzzy Logics and Graded Consequence: A Comparative Appraisal

2013 ◽  
pp. 197-209 ◽  
Author(s):  
Soma Dutta ◽  
Sanjukta Basu ◽  
Mihir Kr. Chakraborty
Keyword(s):  
Fuzzy Logics
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