Day-ahead power system scheduling considering water consumption in power plants

© 2019 John Wiley & Sons, Ltd. Power generation consumes a substantial amount of water in the power industry. In order to address the impact of water consumption restriction on the power generation, this paper proposes a security-constrained unit commitment (SCUC) formulation considering water consumption impact as an additional constraint. To this end, the water consumption in power plants is formulated. Consequently, the SCUC is extended to consider the consumed water volume as a restricting factor. A procedure is introduced to investigate the most appropriate point of power generation operation to save a vital amount of water by raising reasonable generation costs. The objective of the proposed model is to minimize the generation cost, while water consumption is considered as an additional constraint of the problem. The proposed method is then applied on the Institute of Electrical and Electronics Engineers (IEEE) 118-bus standard test system. It is shown that a dramatic amount of water volume can be saved in the industry by exploiting rationally higher costs in the power generation

Computational intelligence on short-term load forecasting : a methodological overview

201904 bcmaVersion of RecordPublishe

A novel detection algorithm to identify false data injection attacks on power system state estimation

201908 bcmaVersion of RecordPublishe

Melatonin protects testes against lithium-pilocarpine-induced temporal lobe epilepsy in rats: a time course study

Male dysfunction is common in patients with temporal lobe epilepsy (TLE). We evaluated whether melatonin, as a supplement, can play a positive role in reducing the epileptogenesis imposing abnormalities of spermatozoa and testes in epileptic rats. Status epilepticus was induced based on the TLE lithium-pilocarpine model. Two patterns of melatonin were administered to the epileptic animals along the mean durations of latent (14days) and chronic (60days) phases. Sperm parameters, different antioxidant enzyme levels, germ cell apoptosis, body and relative sex organ weights were evaluated in all groups 60days following SE induction. Chronic TLE caused a significant reduction in sperm parameters. In the testis, the reduced level of antioxidant enzymes was accompanied by a significant increase in malondialdehyde concentration. The presence of oxidant condition in the testes of epileptic animals caused expanded apoptosis in the germ cell layer. Moreover, the amount of weight gain in epileptic animals was more prominent. Melatonin administration was able to improve sperm motility by increasing the total antioxidant level. There was also a significant reduction in the spermatogenic cell line apoptosis and the extra weight gain of melatonin-treated animals. Melatonin supplementation might be considered as an acceptable cotreatment in epileptic patients

Optimized water consumption considering power plants efficiency in power system generation

© 2019 IEEE. In order to generate adequate electricity energy, conventional power plants utilize dramatic volume of water resources. Different methods such as replacing cutting-edge technologies of facilities have been proposed to diminish water consumption in this industry. Most of the approaches are considered as medium or long-term solution which requires substantial investment costs. Meanwhile, because of the process and technology, natural gas-fired power plants need less water among conventional power plants. Therefore, shifting unit commitment planning toward these power plants would aid to save water consumption. Nevertheless, overlooking combined cycle power plants can perform negative impact on power plant efficiency, and it may increase power generation cost. This paper aims to investigate multi-objective optimization problem to minimize water consumption by maximizing the power generation efficiency. Hence, this method contemplates economic dispatch by selecting more efficient and less water required power plants. The proposed model is examined on an IEEE 24-bus test system to address the results, and it is compared with the conventional economic dispatch problem to clarify the impact of the proposed approach. According to the results, some relevant conclusions are drawn