Dynamic Fuzzy Logic Elevator Group Control System for Energy Optimization

Abstract

High-rise buildings with a considerable number of elevators represent a major logistic problem concerning saving space and time due to economic reasons. For this reason, complex Elevator Group Control Systems are developed in order to manage the elevators properly. Furthermore, the subject of energy is acquiring more and more industrial relevance every day as far as sustainable development is concerned. In this paper, the first entirely dynamic Fuzzy Logic Elevator Group Control System to dispatch landing calls so as to minimize energy consumption, especially during interfloor traffic, is proposed. The fuzzy logic design described here constitutes not only an innovative solution that outperforms usual dispatchers but also an easy, cheap, feasible and reliable solution, which is possible to be implemented in real industry controllers.

Sensor and Dynamic Pricing Aware Vertical Transportation in Smart Buildings

“…Inter-floor happens when passengers randomly move between floors during the daytime and there is no peak traffic at this time. Our nonhomogeneous traffic includes up-peak (8:00-9:00), downpeak (17:00-18:00), up/down-peak (12:00-13:00), and interfloor patterns as is done in previous studies [9,47,54,55]. The arrival rate for the up-peak and down-peak is set to 30 passengers/minute and 15 passengers/minute, respectively.…”

Una revisión del estado del arte de los problemas asociados al transporte vertical mediante ascensores en edificios

“…No obstante, y pese al interés industrial, pocos trabajos han incluido la consideración de la energía en la literatura científica [13]. En esta línea de investigación hay que destacar los trabajos que consideran la instalación de resistores capaces de recuperar energía cuando el contrapeso del sistema de elevación ayuda al propio movimiento del mismo en la direc-ción deseada [13][14][15] o la de aquellos orientados a conseguir reducciones de energía modificando las velocidades de los ascensores en función de carga y distancias [16]. Nótese que los ascensores están usualmente diseñados para que se mantengan en equilibrio con una carga igual a la mitad de la máxima admisible (que coincide con el peso del contrapeso del sistema de elevación).…”

“…Enfoques de carácter estático se han ensayado en [49] mediante un enfoque tradicional. En [50] se implementa una función difusa que evalúa los tiempos de espera y los de ronda, mientras que, en [15], la función de decisión se asocia al consumo energético en lugar de a los tiempos de espera. Por otra parte, [51] recoge un enfoque híbrido que integra lógica difusa y redes neuronales.…”

A Survey of Elevator Group Control Systems for Vertical Transportation: A Look at Recent Literature

“…Technology has evolved, and new hoist elevator models allow a portion of the energy that the elevator employed while moving up to be regained. However, only a few studies [11]- [13] have incorporated this regain of energy in their research. Others have attempted to reduce energy consumption by modifying the speed of the elevators [14].…”