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Hierarchical quantitative prediction of photovoltaic power generation depreciation expense based on matrix task prioritization considering uncertainty risk 考虑不确定性风险的基于矩阵任务优先级的光伏发电折旧费用分层定量预测
Energy Informatics Pub Date : 2025-01-14 DOI: 10.1186/s42162-024-00456-7
Yinming Liu, Wengang Wang, Xiangyue Meng, Yuchen Zhang, Zhuyu Chen
{"title":"Hierarchical quantitative prediction of photovoltaic power generation depreciation expense based on matrix task prioritization considering uncertainty risk","authors":"Yinming Liu,&nbsp;Wengang Wang,&nbsp;Xiangyue Meng,&nbsp;Yuchen Zhang,&nbsp;Zhuyu Chen","doi":"10.1186/s42162-024-00456-7","DOIUrl":"10.1186/s42162-024-00456-7","url":null,"abstract":"<div><p>In order to provide a reliable basis for the cost management of photovoltaic power generation, it is necessary to accurately predict the depreciation expense of photovoltaic power generation. Therefore, a hierarchical quantitative prediction method of photovoltaic power generation depreciation expense based on matrix task prioritization considering uncertain risks is proposed. Based on the conditional value-at-risk theory, a more comprehensive risk measure than VaR is provided, and the uncertainty risk value of photovoltaic power generation is calculated by considering the average loss exceeding this loss value. According to the calculated risk value, a double-layer photovoltaic power generation cost planning model is constructed, the upper and lower objective functions of the model are determined, and the constraint conditions are designed; Obtain a cost planning objective function solution base on a matrix task prioritization method, and generating a prioritization table; Prediction of photovoltaic power generation depreciation expense based on long-short memory neural network for each solution in the sorting table. In practical application, the test results show that this method can complete the risk quantitative analysis of uncertain factors, and the tracking ability and fitting degree of prediction are good; An ordered list of solutions of each objective function can be generated; The method in this paper is used to predict the depreciation expense of photovoltaic power generation in the first 10 solutions of priority ranking, and the maximum deviation of the prediction result is -0.65 million yuan.</p></div>","PeriodicalId":538,"journal":{"name":"Energy Informatics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://energyinformatics.springeropen.com/counter/pdf/10.1186/s42162-024-00456-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transmission line trip faults under extreme snow and ice conditions: a case study 极端冰雪条件下输电线路跳闸故障:案例研究
Energy Informatics Pub Date : 2025-01-13 DOI: 10.1186/s42162-024-00463-8
Guojun Zhang
{"title":"Transmission line trip faults under extreme snow and ice conditions: a case study","authors":"Guojun Zhang","doi":"10.1186/s42162-024-00463-8","DOIUrl":"10.1186/s42162-024-00463-8","url":null,"abstract":"<div><p>Extreme weather events, particularly snow and ice storms, present significant threats to the stability and reliability of high-voltage transmission lines, leading to substantial disruptions in power supply. This study delves into the causes and consequences of transmission line trip faults that occur under severe winter conditions, with a focused case study in Inner Mongolia—an area frequently impacted by snow and ice hazards. By systematically analyzing field data collected during critical periods of ice accumulation, this research identifies and examines key factors contributing to faults, such as conductor galloping, insulator degradation, and structural fatigue. These issues are often exacerbated by prolonged exposure to low temperatures and high wind speeds, which further compromise the integrity of transmission infrastructure. In addition to field observations, comprehensive testing of the affected insulators and components reveals mechanical and electrical vulnerabilities that play a significant role in the occurrence of trip faults. To combat these challenges, the paper proposes a series of mitigation and prevention strategies. These include enhancing design specifications to ensure resilience against increased ice and wind loads, deploying real-time monitoring systems capable of detecting early indicators of conductor galloping and ice accumulation, and employing advanced de-icing technologies to reduce the risk of ice-related failures. Moreover, the integration of unmanned aerial vehicles (UAVs) and artificial intelligence (AI)-based fault detection tools presents promising opportunities for improving remote monitoring capabilities and enabling proactive maintenance interventions. By leveraging these innovative technologies, the resilience of transmission lines in harsh climates can be significantly enhanced. The findings of this study not only provide a comprehensive framework for minimizing the impact of extreme weather on transmission infrastructure but also contribute valuable insights toward fostering a more reliable and resilient power grid capable of withstanding the challenges posed by an increasingly volatile climate.</p></div>","PeriodicalId":538,"journal":{"name":"Energy Informatics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://energyinformatics.springeropen.com/counter/pdf/10.1186/s42162-024-00463-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A photovoltaic power ultra short-term prediction method integrating Hungarian clustering and PSO algorithm 结合匈牙利聚类和粒子群算法的光伏超短期预测方法
Energy Informatics Pub Date : 2025-01-08 DOI: 10.1186/s42162-024-00466-5
Ting Wang
{"title":"A photovoltaic power ultra short-term prediction method integrating Hungarian clustering and PSO algorithm","authors":"Ting Wang","doi":"10.1186/s42162-024-00466-5","DOIUrl":"10.1186/s42162-024-00466-5","url":null,"abstract":"<div><p>In response to the problem of low prediction accuracy in ultra short-term prediction of photovoltaic power, this study combines Hungarian clustering analysis and particle swarm optimization variational mode decomposition algorithm to construct a photovoltaic power ultra short-term forecasting model, to analyze data in depth and improve prediction accuracy. The experiment outcomes show that the Hungarian algorithm performs well in integrating single clustering results and effectively improves the problem of atypical classification. In addition, the clustering ensemble model shows significant improvement compared to other models on the Calinski-Harabasz index, and effectively reduces the overlap between clusters on the Davies-Bouldin index, improving the overall quality of clustering. Under different weather conditions, the convergence accuracy and speed of the multiverse optimization support vector machine, multiverse optimization support vector machine, and particle swarm optimization variational mode decomposition algorithms each have their own advantages, but the particle swarm optimization variational mode decomposition algorithm performs better. In addition, the Hungarian clustering model has high stability in predicting errors, with average absolute error and average relative error lower than BP and RBF models. The maximum absolute error and maximum relative error are reduced, indicating the effectiveness and predictive advantage of the proposed Hungarian clustering ensemble model in predicting photovoltaic power.</p></div>","PeriodicalId":538,"journal":{"name":"Energy Informatics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://energyinformatics.springeropen.com/counter/pdf/10.1186/s42162-024-00466-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of power system load forecasting and scheduling based on artificial neural networks 基于人工神经网络的电力系统负荷预测与调度优化
Energy Informatics Pub Date : 2025-01-08 DOI: 10.1186/s42162-024-00467-4
Jiangbo Jing, Hongyu Di, Ting Wang, Ning Jiang, Zhaoyang Xiang
{"title":"Optimization of power system load forecasting and scheduling based on artificial neural networks","authors":"Jiangbo Jing,&nbsp;Hongyu Di,&nbsp;Ting Wang,&nbsp;Ning Jiang,&nbsp;Zhaoyang Xiang","doi":"10.1186/s42162-024-00467-4","DOIUrl":"10.1186/s42162-024-00467-4","url":null,"abstract":"<div><p>This study seeks to enhance the accuracy and economic efficiency of power system load forecasting (PSLF) by leveraging Artificial Neural Networks. A predictive model based on a Residual Connection Bidirectional Long Short Term Memory Attention mechanism (RBiLSTM-AM) is proposed. In this model, normalized power load time series data is used as input, with the Bidirectional Long and Short Term Memory network capturing the bidirectional dependencies of the time series and the residual connections preventing gradient vanishing. Subsequently, an attention mechanism is applied to capture the influence of significant time steps, thereby improving prediction accuracy. Based on the load forecasting, a Particle Swarm Optimization (PSO) algorithm is employed to quickly determine the optimal scheduling strategy, ensuring the economic efficiency and safety of the power system. Results show that the proposed RBiLSTM-AM achieves an accuracy of 96.68%, precision of 91.56%, recall of 90.51%, and an F1-score of 91.37%, significantly outperforming other models (e.g., the Recurrent Neural Network model, which has an accuracy of 69.94%). In terms of error metrics, the RBiLSTM-AM model reduces the root mean square error to 123.70 kW, mean absolute error to 104.44 kW, and mean absolute percentage error (MAPE) to 5.62%, all of which are lower than those of other models. Economic cost analysis further demonstrates that the PSO scheduling strategy achieves significantly lower costs at most time points compared to the Genetic Algorithm (GA) and Simulated Annealing (SA) strategies, with the cost being 689.17 USD in the first hour and 2214.03 USD in the fourth hour, both lower than those of GA and SA. Therefore, the proposed RBiLSTM-AM model and PSO scheduling strategy demonstrate significant accuracy and economic benefits in PSLF, providing effective technical support for optimizing power system scheduling.</p></div>","PeriodicalId":538,"journal":{"name":"Energy Informatics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://energyinformatics.springeropen.com/counter/pdf/10.1186/s42162-024-00467-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Arrears behavior prediction of power users based on BP neural network and multi-scale feature learning: a refined risk assessment framework 基于BP神经网络和多尺度特征学习的电力用户拖欠行为预测:一种改进的风险评估框架
Energy Informatics Pub Date : 2025-01-07 DOI: 10.1186/s42162-024-00441-0
Liang Yu, Yuanshen Hong, Hua Lin, Xu Jiang, Song Ziming
{"title":"Arrears behavior prediction of power users based on BP neural network and multi-scale feature learning: a refined risk assessment framework","authors":"Liang Yu,&nbsp;Yuanshen Hong,&nbsp;Hua Lin,&nbsp;Xu Jiang,&nbsp;Song Ziming","doi":"10.1186/s42162-024-00441-0","DOIUrl":"10.1186/s42162-024-00441-0","url":null,"abstract":"<div><p>This study aims to develop an efficient model to predict the arrears behavior of electricity users by integrating multi-scale feature learning with a backpropagation (BP) neural network. The goal is to provide accurate early warning systems and enhanced risk management tools for power companies. The BP neural network algorithm adjusts weights to minimize prediction errors, while multi-scale feature learning captures the diversity and regularity of user behavior by extracting data from various time dimensions, such as daily, weekly, and monthly intervals. First, electricity usage and weather data from the UMass Smart Dataset are preprocessed, including steps such as data cleaning, standardization, and normalization. Next, features are extracted across three time scales—daily, weekly, and monthly. These features are then input into the BP neural network model using the multi-scale feature learning method. A hierarchical neural network structure is designed to address the characteristics of different scales in distinct layers. Key model parameters are optimized, and a sensitivity analysis is conducted. The experimental results demonstrate that the BP neural network model incorporating multi-scale features outperforms traditional BP neural network models and other control models in several evaluation metrics. Specifically, the Gini coefficient is 0.55, the Kolmogorov-Smirnov statistic is 0.60, the Matthews correlation coefficient is 0.45, and specificity is 0.82. These results indicate that the proposed method offers significant improvements in capturing user behavior patterns and enhancing prediction accuracy. The study concludes that the effective fusion of multi-scale features not only enhances the model’s prediction performance but also strengthens its generalization ability. This method provides an advanced risk management tool for power companies, helping to increase the operational efficiency of smart grids and encouraging further research toward greater intelligence in the field.</p></div>","PeriodicalId":538,"journal":{"name":"Energy Informatics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://energyinformatics.springeropen.com/counter/pdf/10.1186/s42162-024-00441-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Capacity planning for hydro-wind-photovoltaic-storage systems considering high-dimensional uncertainties 考虑高维不确定性的水电-风电-光伏-储能系统容量规划
Energy Informatics Pub Date : 2025-01-06 DOI: 10.1186/s42162-024-00462-9
Xiongwei Li, Jintao Song, Yuquan Ma, Ziqi Zhu, Hongxu Liu, Chuxi Wei
{"title":"Capacity planning for hydro-wind-photovoltaic-storage systems considering high-dimensional uncertainties","authors":"Xiongwei Li,&nbsp;Jintao Song,&nbsp;Yuquan Ma,&nbsp;Ziqi Zhu,&nbsp;Hongxu Liu,&nbsp;Chuxi Wei","doi":"10.1186/s42162-024-00462-9","DOIUrl":"10.1186/s42162-024-00462-9","url":null,"abstract":"<div><p>The rapid development of renewable energy has made hydropower’s role as a flexible resource increasingly important in power systems. However, hydropower generation capability highly depends on water inflows, particularly during dry seasons, making it difficult to independently meet growing load demands. The application of hydro-wind-photovoltaic-storage systems offers a promising solution, yet faces challenges from the high-dimensional uncertainties in natural conditions. This paper proposes a capacity planning method that considers high-dimensional uncertainties characterized by spatiotemporal correlations of natural factors. Firstly, a scenario generation method based on the transition probability matrix and C-Vine Copula model is developed. The constructed scenario sets capture the temporal correlations of natural conditions and spatial correlations between different parameters. Secondly, a bi-level optimization model for capacity planning is established. The upper level minimizes the deviation of operational cost and grid supply revenue to determine optimal capacity allocation, while the lower level optimizes both economic and safe objectives for operational dispatch. The normal boundary intersection method is employed to obtain Pareto front solutions that balance economy and safety. Different case studies are conducted to validate the effectiveness of the proposed method. Compared with the fixed ratio and variable ratio capacity allocation strategies without uncertainty, the optimal total system cost is reduced by 2.90% and 3.88%, respectively.</p></div>","PeriodicalId":538,"journal":{"name":"Energy Informatics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://energyinformatics.springeropen.com/counter/pdf/10.1186/s42162-024-00462-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A machine learning approach for wind turbine power forecasting for maintenance planning 风电机组功率预测的机器学习方法
Energy Informatics Pub Date : 2025-01-06 DOI: 10.1186/s42162-024-00459-4
Hariom Dhungana
{"title":"A machine learning approach for wind turbine power forecasting for maintenance planning","authors":"Hariom Dhungana","doi":"10.1186/s42162-024-00459-4","DOIUrl":"10.1186/s42162-024-00459-4","url":null,"abstract":"<div><p>Integrating power forecasting with wind turbine maintenance planning enables an innovative, data-driven approach that maximizes energy output by predicting periods low wind production and aligning them with maintenance schedules, improving operational efficiency. Recently, many countries have met renewable energy targets, primarily using wind and solar, to promote sustainable growth and reduce emissions. Forecasting wind turbine power production is crucial for maintaining a stable and reliable power grid. As renewable energy integration increases, precise electricity demand forecasting becomes essential at every power system level. This study presents and compares nine machine learning (ML) methods for forecasting, Interpretable ML, Explainable ML, and Blackbox model. The interpretable ML includes Linear Regression (LR), K-Nearest Neighbors (KNN), eXtreme Gradient Boosting (XGBoost), Random Forest (RF); the explainable ML consists of graphical Neural network (GNN); and the blackbox model includes Multi-layer Perceptron (MLP), Recurrent Neural Network (RNN), Gated Recurrent Unit (GRU), and Long Short-Term Memory (LSTM). These methods are applied to the EDP datasets using three causal variable types: including temporal information, metrological information, and power curtailment information. Computational results show that the GNN-based forecasting model outperforms other benchmark methods regarding power forecasting accuracy. However, when considering computational resources such as memory and processing time, the XGBoost model provides optimal results, offering faster processing and reduced memory usage. Furthermore, we present forecasting results for various time windows and horizons, ranging from 10 minutes to a day.</p></div>","PeriodicalId":538,"journal":{"name":"Energy Informatics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://energyinformatics.springeropen.com/counter/pdf/10.1186/s42162-024-00459-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Realization and research of self-healing technology of power communication equipment based on power safety and controllability 基于电力安全可控性的电力通信设备自愈技术的实现与研究
Energy Informatics Pub Date : 2025-01-02 DOI: 10.1186/s42162-024-00460-x
Danni Liu, Song Zhang, Shengda Wang, Mingwei Zhou, Ji Du
{"title":"Realization and research of self-healing technology of power communication equipment based on power safety and controllability","authors":"Danni Liu,&nbsp;Song Zhang,&nbsp;Shengda Wang,&nbsp;Mingwei Zhou,&nbsp;Ji Du","doi":"10.1186/s42162-024-00460-x","DOIUrl":"10.1186/s42162-024-00460-x","url":null,"abstract":"<div><p>The reliability of power communication networks is vital to ensure uninterrupted operation in power electronics. Self-healing techniques address this need by automating fault identification and recovery. However, existing methods struggle with dynamic challenges like voltage fluctuations, thermal overloads, and multidimensional sensor data, often leading to delays in fault recovery and reduced safety. This study aims to develop the Self Heal Power Safe Predictor (SHPSP) model to overcome the limitations of prior self-healing techniques. The primary objectives include improving fault prediction accuracy, enhancing recovery speed, and ensuring resilience under diverse and high-stress operational conditions. The SHPSP model employs an ensemble-based classification strategy within a majority voting framework, focusing on multidimensional sensor data such as voltage, temperature, and safety indicators. Feature selection is optimized using ensembled filter and wrapper techniques to prioritize critical parameters. The model is validated against conventional methods using metrics like accuracy, precision, recall, F1-score, and MCC. Experimental results demonstrate that the SHPSP model significantly outperforms previous approaches, achieving higher fault detection accuracy and faster recovery, particularly during voltage drops, power surges, and thermal stress. The SHPSP classifier obtained 91.4% accuracy, 88.2% precision, 89.5% recall, 89.8% F1-score, 81.0% MCC, and a 92.0% ROC-AUC curve. The SHPSP model ensures enhanced safety, dependability, and robustness for power electronics systems, marking a significant advancement in self-healing technology.</p></div>","PeriodicalId":538,"journal":{"name":"Energy Informatics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://energyinformatics.springeropen.com/counter/pdf/10.1186/s42162-024-00460-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated energy trading algorithm for source-grid-load-storage energy system based on distributed machine learning 基于分布式机器学习的源-网-负荷-储能系统综合能源交易算法
Energy Informatics Pub Date : 2024-12-31 DOI: 10.1186/s42162-024-00451-y
Zhiwei Cui, Changming Mo, Qideng Luo, Chunli Zhou
{"title":"Integrated energy trading algorithm for source-grid-load-storage energy system based on distributed machine learning","authors":"Zhiwei Cui,&nbsp;Changming Mo,&nbsp;Qideng Luo,&nbsp;Chunli Zhou","doi":"10.1186/s42162-024-00451-y","DOIUrl":"10.1186/s42162-024-00451-y","url":null,"abstract":"<div><p>The highly integrated source-grid-load-storage energy system has received increasing attention in energy transformation strategies. However, the current static network isomorphism algorithm for distributed machine learning cannot meet the energy exchange needs of the integrated energy system. To better solve the energy loss problem caused by energy trading in the power system, prevent the clean energy loss, and ensure the stable operation of the power system, a distributed dynamic network heterogeneous algorithm is designed on the basis of distributed machine learning. The proposed method uses a dynamic network to balance communication load among servers while solving the hidden state vector errors that cannot be corrected timely due to static network isomorphism. Compared with other methods with a sensitivity of 25%, the sensitivity level of the improved algorithm was above 75%. When the accuracy of other algorithms was 50%, the improved algorithm was above 80%. In the application experiment, the temperature reached 50℃ with the increase of the power. The humidity value always remained above 20. Therefore, the proposed algorithm has superior performance and good application effects, providing new ideas for energy trading in source-grid-load-storage energy systems.</p></div>","PeriodicalId":538,"journal":{"name":"Energy Informatics","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://energyinformatics.springeropen.com/counter/pdf/10.1186/s42162-024-00451-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142906063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Distributed hybrid energy storage photovoltaic microgrid control based on MPPT algorithm and equilibrium control strategy 基于MPPT算法和平衡控制策略的分布式混合储能光伏微网控制
Energy Informatics Pub Date : 2024-12-31 DOI: 10.1186/s42162-024-00454-9
Yanlong Qi, Rui Liu, Haisheng Lin, Junchen Zhong, Zhen Chen
{"title":"Distributed hybrid energy storage photovoltaic microgrid control based on MPPT algorithm and equilibrium control strategy","authors":"Yanlong Qi,&nbsp;Rui Liu,&nbsp;Haisheng Lin,&nbsp;Junchen Zhong,&nbsp;Zhen Chen","doi":"10.1186/s42162-024-00454-9","DOIUrl":"10.1186/s42162-024-00454-9","url":null,"abstract":"&lt;div&gt;&lt;p&gt;With the rapid advancement of the new energy transformation process, the stability of photovoltaic microgrid output is particularly important. However, current photovoltaic microgrids suffer from unstable output and power fluctuations. To improve the stability and system controllability of photovoltaic microgrid output, this study constructs an optimized grey wolf optimization algorithm. Using the idea of small step perturbation, it is applied to the maximum power point tracking solar controller to construct a maximum power point controller algorithm based on the improved algorithm. Secondly, the algorithm is combined with photovoltaic arrays to construct a maximum tracking point control system for photovoltaic arrays based on the algorithm. Finally, the system is combined with low-pass filtering power allocation and secondary power allocation strategies, as well as a hybrid storage system, to construct a photovoltaic microgrid control model. In the performance comparison analysis of the research algorithm, the average accuracy and average loss value of the algorithm were 98.2% and 0.15, respectively, which were significantly better than the compared algorithms. The performance analysis of the photovoltaic microgrid control model showed that the model could effectively regulate and control the output power of the microgrid under two operating conditions, demonstrating its effectiveness. The above results indicate that The proposed algorithm and the improved algorithm of the PV microgrid control model can not only improve the steady-state tracking accuracy, but also have better dynamic performance and improve the tracking speed. The control strategy can maintain the operational stability of the microgrid system and realize the smooth switching control of each mode, meeting the stability and flexibility requirements of the PV microgrid system. The novelty of this study is that the improved Grey Wolf optimization algorithm enhances the global search ability by introducing the random jump mechanism of Levy flight algorithm and the combination of particle swarm optimization algorithm and Grey Wolf optimization algorithm to avoid falling into the local optimal. The randomness and ergodicity of Levy flight algorithm enable the hybrid algorithm to quickly adapt to the changes of light intensity and environmental conditions, and maintain the efficient operation of MPPT. Moreover, particle swarm optimization has strong local search ability, and gray Wolf optimization improves local search accuracy. The combination of the two improves local search accuracy. By combining the characteristics of Levy flight algorithm, the parameters of PSO and GWO algorithm, such as inertia weight and convergence factor, are dynamically adjusted to adapt to different working conditions of MPPT. The optimal solution is output as the optimal strategy of MPPT through collaboration. The potential practical impact is that the improved MPPT control strategy can track the max","PeriodicalId":538,"journal":{"name":"Energy Informatics","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://energyinformatics.springeropen.com/counter/pdf/10.1186/s42162-024-00454-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142906074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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