Applying machine learning techniques for forecasting flexibility of virtual power plants

Author(s):  
Pamela MacDougall ◽  
Anna Magdalena Kosek ◽  
Hendrik Bindner ◽  
Geert Deconinck
Author(s):  
Mariam Ibrahim ◽  
Ahmad Alsheikh ◽  
Feras M. Awaysheh ◽  
Mohammad Dahman Alshehri

The rapid industrial growth in solar energy is gaining increasing interest in renewable power from smart grids and plants. Anomaly detection in photovoltaic (PV) systems is a demanding task. In this sense, it is vital to utilize recent advances in machine learning to accurately and timely detect different anomalies and condition monitoring. This paper addresses this issue by evaluating different machine learning techniques and schemes and showing how to apply these approaches to solve anomaly detection and detect faults on photovoltaic components. For this, we apply distinct state-of-the-art machine learning techniques (AutoEncoder Long Short-Term Memory (AE-LSTM), Facebook-Prophet, and Isolation Forest) to detect faults/anomalies and evaluate their performance. These models shall identify the PV system's healthy and abnormal actual behaviors. Our results provide clear insights to make an informed decision, especially with experimental trade-offs for such complex solution space.


Algorithms ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 185 ◽  
Author(s):  
Nicolas Dupin ◽  
El-Ghazali Talbi

This paper studies the hybridization of Mixed Integer Programming (MIP) with dual heuristics and machine learning techniques, to provide dual bounds for a large scale optimization problem from an industrial application. The case study is the EURO/ROADEF Challenge 2010, to optimize the refueling and maintenance planning of nuclear power plants. Several MIP relaxations are presented to provide dual bounds computing smaller MIPs than the original problem. It is proven how to get dual bounds with scenario decomposition in the different 2-stage programming MILP formulations, with a selection of scenario guided by machine learning techniques. Several sets of dual bounds are computable, improving significantly the former best dual bounds of the literature and justifying the quality of the best primal solution known.


Author(s):  
Rakhi Yadav ◽  
Yogendra Kumar

Introduction: Non-Technical Losses (NTL) occur up to 40 % of the total electric transmission and distribution power. Hence, across the world, the power system is facing many challenges. The occurrence of such large amounts of losses cannot be ignored. These losses have severe impacts on distribution utilities. The performance of electric distribution networks adversely affects due to these losses. The reduction of these NTL consequently reduces the requirement of new power plants to fulfil the demand-supply gap. Hence, NTL is an emerging research area for electrical engineers. This paper has covered various deep learning and machine learning models used to detect non-technical losses. Discussion: There is a lack of research in this field so far. The existing literature only shows the detection of non-technical losses using a machine and deep learning. This paper also provides the causes of NTL followed by an impact on economies, a variation of NTL in different countries. Further, we have provided a comparative analysis based on several essential parameters. We have also discussed various simulation tools. Moreover, several challenges occur during machine and deep learning-based detection of NTL, and its possible solutions are also discussed. Conclusion: In the present paper, we have reviewed the impact of NTLs on economies, potential revenue losses, and electricity provider's profit. Further, it provides a detailed review of deep learning and machine learning techniques used to detect the NTL. This survey has also discussed challenges in machine learning-based detection of NTL, followed by their possible solutions. In addition, this paper also provides details about various tools and simulation environments used to detect the NTL. We are confident that this comprehensive survey will help the researchers to research this thrust area.


2006 ◽  
Author(s):  
Christopher Schreiner ◽  
Kari Torkkola ◽  
Mike Gardner ◽  
Keshu Zhang

2020 ◽  
Vol 12 (2) ◽  
pp. 84-99
Author(s):  
Li-Pang Chen

In this paper, we investigate analysis and prediction of the time-dependent data. We focus our attention on four different stocks are selected from Yahoo Finance historical database. To build up models and predict the future stock price, we consider three different machine learning techniques including Long Short-Term Memory (LSTM), Convolutional Neural Networks (CNN) and Support Vector Regression (SVR). By treating close price, open price, daily low, daily high, adjusted close price, and volume of trades as predictors in machine learning methods, it can be shown that the prediction accuracy is improved.


Diabetes ◽  
2020 ◽  
Vol 69 (Supplement 1) ◽  
pp. 389-P
Author(s):  
SATORU KODAMA ◽  
MAYUKO H. YAMADA ◽  
YUTA YAGUCHI ◽  
MASARU KITAZAWA ◽  
MASANORI KANEKO ◽  
...  

Author(s):  
Anantvir Singh Romana

Accurate diagnostic detection of the disease in a patient is critical and may alter the subsequent treatment and increase the chances of survival rate. Machine learning techniques have been instrumental in disease detection and are currently being used in various classification problems due to their accurate prediction performance. Various techniques may provide different desired accuracies and it is therefore imperative to use the most suitable method which provides the best desired results. This research seeks to provide comparative analysis of Support Vector Machine, Naïve bayes, J48 Decision Tree and neural network classifiers breast cancer and diabetes datsets.


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