Multitasked maintenance crews to serve emergency scenarios in electric distribution utilities

Abstract

This paper proposes a mathematical model to handle emergency service requests in electric power distribution utilities. Given available maintenance crews and their already assigned service orders, a mathematical model based on mixed integer linear programming is developed to solve the dynamic vehicle routing problem related to the task of deciding which maintenance crew will complete each pending emergency service request. One key aspect refers to the real-time constraint, what means that computational system must be able to handle a solution to the emergency work order dispatch problem with response times in the order of milliseconds or even microseconds. First, the problem definition is presented, followed by preliminary results that have shown how suitable can be the proposed definition when addressing the referred problem and also by using Google Earth plataform. Finally, conclusions point out the main contributions of this work.

Evaluating multicriteria scenarios to schedule emergency orders in electric distribution utilities

“…This paper continues a previous work of Garcia et al [15] to discuss the consequences of considering not only the minimization of distance traveled or latency but also a tradeoff between them. With this assumption, first the emergency work order dispatch problem is re-defined, following the main conceptions of Garcia et al [15], followed by the computational results and conclusions.…”

“…Since this work represents a future work of that defined in Garcia et al [15], the same mathematical model was assumed, only incorporating three criteria included in a new objective function: the first, weighted by W 1 , corresponds to the latency cost of all emergency orders; the second, weighted by W 2 , includes the cost of all routes; the third, weighted by W 3 , aims to reduce the delay when considering the time when a commercial order i is completed and the end time of each route. Equation (1) has presented that new objective function.…”

“…Following the same directions of Garcia et al [15], one mathematical model was assumed for the case where there are a given set of crews with a previous known route, which includes services called commercial orders. Given an instant of time in that a certain number of emergency orders come up, it is assumed that they will be assigned to the given crews in such a way that previous routes will not be changed.…”

“…With this assumption, first the emergency work order dispatch problem is re-defined, following the main conceptions of Garcia et al [15], followed by the computational results and conclusions. The output interface has presented significant improvements when comparing with that one shown in [15]: Google Earth is still the platform but timeline and performance indicators were incorporated in order to help the study of the proposed schedule.…”

The Optimization Model for Electric System Emergency Facility Storage and Transportation Considering Information Credibility

“…The literature [13][14][15][16] researched on the classification of power emergency material and built a survey model and algorithms for emergency response logistics. The literature [17] proposed a mathematical model to handle emergency service requests in electric power distribution utilities. The literature [18] built a system based on processing operating modes of electric systems and geoinformation control of the operating modes.…”