A novel reliability oriented bi-objective unit commitment problem

Abstract

This paper presents a new solution to unit commitment for single-objective and multi-objective frameworks. In the first step, the total expected energy not supplied (TEENS) is proposed as a separate reliability objective function and at the next step, the multi-objective Pareto front strategy is implemented to simultaneously optimize the cost and reliability objective functions. Additionally, an integer based codification of initial solutions is added to reduce the dimension of ON/OFF status variables and also to eliminate the negative influence of penalty factor. The modified invasive weed optimization (MIWO) algorithm is also developed to optimally solve the proposed problem. The obtained solutions are compared with results in the literature which confirms the applicability and superiority of the proposed algorithm for a 10-unit system and 24-hour scheduling horizon. Index Term-Unit commitment, bi-objective optimization, the total expected energy not supplied (TEENS), invasive weed optimization (MIWO) algorithm.

A review on resilience studies in active distribution systems

“…Over the past decade, the majority of the studies on power outage have emphasized the analysis of reliability and sustainability. To understand the reliability concept, two important factors that should be considered are adequacy and security [5,6]. Adequacy refers to the uninterrupted power supply that will continuously provide light on facilities to end-users.…”