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Comparative Analysis of Load Forecasting Based on LSTM and ARIMA 基于LSTM和ARIMA的负荷预测比较分析
智能电网(汉斯) Pub Date : 2023-01-01 DOI: 10.12677/sg.2023.133005
瀚文 张
{"title":"Comparative Analysis of Load Forecasting Based on LSTM and ARIMA","authors":"瀚文 张","doi":"10.12677/sg.2023.133005","DOIUrl":"https://doi.org/10.12677/sg.2023.133005","url":null,"abstract":"To address the issue of improving the accuracy of load forecasting, research on load forecasting based on different principles was conducted. First, data preprocessing was performed. Secondly, a load forecasting process based on LSTM was formed, followed by a load forecasting process based on ARIMA. Finally, a case analysis was conducted, which verified that the LSTM-based prediction method has higher accuracy in predicting the comprehensive load in the region. Furthermore, the advantages and disadvantages of the two methods were analyzed. The ARIMA model has a simple calculation, but it is difficult to accurately predict complex nonlinear load changes. On the other hand, the LSTM model can better handle complex nonlinear load changes, but it requires high","PeriodicalId":66748,"journal":{"name":"智能电网(汉斯)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66262963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Source-Storage Coordination Optimal Scheduling Method with Concentrating Solar Power 聚光太阳能发电源蓄协调最优调度方法
智能电网(汉斯) Pub Date : 2023-01-01 DOI: 10.12677/sg.2023.131001
炽 刘
{"title":"Source-Storage Coordination Optimal Scheduling Method with Concentrating Solar Power","authors":"炽 刘","doi":"10.12677/sg.2023.131001","DOIUrl":"https://doi.org/10.12677/sg.2023.131001","url":null,"abstract":"As large-scale new energy sources are integrated into the grid, their operational characteristics","PeriodicalId":66748,"journal":{"name":"智能电网(汉斯)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66262576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clustering of Power Consumption Patterns Based on PK-Means Algorithm 基于pk -均值算法的功耗模式聚类
智能电网(汉斯) Pub Date : 2023-01-01 DOI: 10.12677/sg.2023.132004
增辉 奚
{"title":"Clustering of Power Consumption Patterns Based on PK-Means Algorithm","authors":"增辉 奚","doi":"10.12677/sg.2023.132004","DOIUrl":"https://doi.org/10.12677/sg.2023.132004","url":null,"abstract":"Clustering of power consumption patterns is an important basis for power grid demand side management, load forecasting, and power system planning, and is of great significance to the analysis, operation, and planning of power systems. Aiming at the problem that the traditional K-Means al-gorithm does not effectively use time series features when clustering electricity consumption patterns, an improved time series clustering algorithm PK-Means based on the K-Means algorithm is proposed, and based on the SSE evaluation index an improvement was made, and an evaluation index cumulative similarity (CS) for time series clustering algorithm was proposed. Through the","PeriodicalId":66748,"journal":{"name":"智能电网(汉斯)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66262851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In-Depth Study on Deflection Control Measures of Long-Span Suspended Tubular Busbar 大跨度悬挂管式母线挠度控制措施的深入研究
智能电网(汉斯) Pub Date : 2023-01-01 DOI: 10.12677/sg.2023.131003
菲 刘
{"title":"In-Depth Study on Deflection Control Measures of Long-Span Suspended Tubular Busbar","authors":"菲 刘","doi":"10.12677/sg.2023.131003","DOIUrl":"https://doi.org/10.12677/sg.2023.131003","url":null,"abstract":"In recent years, with the wide application of long-span suspended tubular busbar in substations of various voltage levels, the problem of excessive deflection of tubular busbar has become more and more prominent. In this paper, relying on a 750 kV substation, aiming at the problem of excessive deflection of the long-span suspended tubular busbar, a three-dimensional finite element model is established to calculate the deflection and field strength of the tubular busbar, and a new type of tubular busbar suspension system is proposed by means of comprehensive comparative analysis, theoretical calculation and true-type testing, namely, V-shaped insulator string with double-sided auxiliary cable tubular busbar suspension system. And related fitting is developed and manufactured. Compared with the current solution, the tubular busbar deflection in the interval and between the suspension points of adjacent intervals can be greatly reduced to less than 0.5 D (D is the outer diameter of the tubular busbar), and it has the advantages of controllable field strength, simple structure, and convenient construction. Taking a 750 kV substation as an example, it can save about 28% of the investment in the tubular busbar fittings. The research results of the V-shaped insulator string plus double-sided auxiliary cable suspension system and its special fittings provide technical support for the subsequent construction of long-span suspended tubular busbar projects, and it has broad application space and excellent social benefits.","PeriodicalId":66748,"journal":{"name":"智能电网(汉斯)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66262787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Economic Dispatch of CHP Multi-Microgrid Based on Double-Layer Reinforcement Learning 基于双层强化学习的热电联产多微网经济调度
智能电网(汉斯) Pub Date : 2023-01-01 DOI: 10.12677/sg.2023.131002
子民 杨
{"title":"Economic Dispatch of CHP Multi-Microgrid Based on Double-Layer Reinforcement Learning","authors":"子民 杨","doi":"10.12677/sg.2023.131002","DOIUrl":"https://doi.org/10.12677/sg.2023.131002","url":null,"abstract":"","PeriodicalId":66748,"journal":{"name":"智能电网(汉斯)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66262225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Power Quality Disturbance Classification Method Based on Improved Transfer Learning 基于改进迁移学习的电能质量扰动分类方法
智能电网(汉斯) Pub Date : 2023-01-01 DOI: 10.12677/sg.2023.133006
中海 孙
{"title":"Power Quality Disturbance Classification Method Based on Improved Transfer Learning","authors":"中海 孙","doi":"10.12677/sg.2023.133006","DOIUrl":"https://doi.org/10.12677/sg.2023.133006","url":null,"abstract":"Aiming at the classification of power quality disturbance signals, a power quality disturbance classification method based on gram angle field and multiple transfer learning is proposed in this paper. Firstly, the one-dimensional power quality disturbance signal is transformed into GAF coded image by using gram angle field, and then three RESNET sub model networks are constructed. The disturbance signals with representative signal-to-noise ratios of 0 dB, 20 dB and 40 dB are selected as the input of the sub model to train the three sub models respectively. During this period, the training weights of the sub models are transferred in turn by using the method of multiple transfer learning. The pre training weight of the latter model is inherited from the training weight of the previous model, and the weight processing methods of partial freezing and partial fine-tuning are adopted to ensure the optimal training effect of the model. Finally, the features of the three sub models are used to train the full connection layer classifier, and finally a complete power quality disturbance classification model is obtained. Simulation results show that the method has good classification accuracy and anti noise performance, and the proposed model has good robustness and generalization.","PeriodicalId":66748,"journal":{"name":"智能电网(汉斯)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66263079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Demand Side Management Considering Household Appliances and EV 考虑家用电器和电动汽车的需求侧管理
智能电网(汉斯) Pub Date : 2022-10-22 DOI: 10.1109/ICSGSC56353.2022.9963032
Zi-Ming Dong, Jing Jiang, Haiya Qian, Hongjian Sun
{"title":"Demand Side Management Considering Household Appliances and EV","authors":"Zi-Ming Dong, Jing Jiang, Haiya Qian, Hongjian Sun","doi":"10.1109/ICSGSC56353.2022.9963032","DOIUrl":"https://doi.org/10.1109/ICSGSC56353.2022.9963032","url":null,"abstract":"Combination of information technology and power engineering is the feature of the next-generation grid. Depending on bidirectional communication, demand side management (DSM) aims at carrying out optimization on the electricity usage pattern of customers to improve energy efficiency and minimize environmental impact. In the present study, a DSM optimization algorithm is designed, which can perform load shifting on a household level based on Time-of-Use strategy. Several flexible appliances, Plug-in hybrid electric vehicle (EV) charging and rooftop photovoltaic (PV) are considered. The results show that the daily electricity cost has a decline of 19% after optimization. 12% reduction of domestic carbon emission is also achieved from the variation of grid carbon intensity and energy provided by rooftop PV. With the growing proportion of EVs and renewable energy, smarting scheduling of household load has a significant impact on grid stability and energy efficiency.","PeriodicalId":66748,"journal":{"name":"智能电网(汉斯)","volume":"19 1","pages":"171-177"},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75398462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An Improved PLL of VSC-HVDC System under Unbalanced and DC Distorted Voltage 不平衡和直流畸变电压下vdc - hvdc系统的改进锁相环
智能电网(汉斯) Pub Date : 2022-10-22 DOI: 10.1109/ICSGSC56353.2022.9963046
Yongyuan Wang, Wei Pan, Ruhai Huang, Donghui Bai, Jianauan Shi
{"title":"An Improved PLL of VSC-HVDC System under Unbalanced and DC Distorted Voltage","authors":"Yongyuan Wang, Wei Pan, Ruhai Huang, Donghui Bai, Jianauan Shi","doi":"10.1109/ICSGSC56353.2022.9963046","DOIUrl":"https://doi.org/10.1109/ICSGSC56353.2022.9963046","url":null,"abstract":"In long-distance transmission, the advantages of the VSC-HVDC system become more and more obvious, but on the grid-connected side, the unbalanced component and DC component contained in the grid voltage will seriously affect the phase-locking accuracy of the phase-locked loop (PLL) and thus affect normal operation of grid-connected inverter. In this paper, an improved PLL is proposed to deal with the unbalanced grid voltage and DC components. First, the principle and defects of the traditional PLL are briefly introduced. Then according to the shortcomings of the PLL, the structure of the PLL is modified to enhance its ability to suppress the DC component. By introducing an adjustment factor into the existing system, it has a greater attenuation of the DC component, and at the same time, the dynamic performance and filtering effect of the system are not lost. Finally, the correctness and effectiveness of the algorithm are verified in the simulated power grid environment.","PeriodicalId":66748,"journal":{"name":"智能电网(汉斯)","volume":"1 1","pages":"78-82"},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73719167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Security Controls for Smart Buildings with Shared Space 共享空间智能建筑的安全控制
智能电网(汉斯) Pub Date : 2022-10-22 DOI: 10.1109/ICSGSC56353.2022.9963114
T. Frantti, Markku Korkiakoski
{"title":"Security Controls for Smart Buildings with Shared Space","authors":"T. Frantti, Markku Korkiakoski","doi":"10.1109/ICSGSC56353.2022.9963114","DOIUrl":"https://doi.org/10.1109/ICSGSC56353.2022.9963114","url":null,"abstract":"In this paper we consider cyber security requirements of the smart buildings. We identify cyber risks, threats, attack scenarios, security objectives and related security controls. The work was done as a part of a smart building design and construction work. From the controls identified w e concluded security practices for engineering-in smart buildings security. The paper provides an idea toward which system security engineers can strive in the basic design and implementation of the most critical components of the smart buildings. The intent of the concept is to help practitioners to avoid ad hoc approaches in the development of security mechanisms for smart buildings with shared space.","PeriodicalId":66748,"journal":{"name":"智能电网(汉斯)","volume":"39 1","pages":"156-165"},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79990177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inverse Park Transformation PLL for VSC-HVDC under Unbalanced Voltage Condition 电压不平衡条件下vdc - hvdc逆变锁相环
智能电网(汉斯) Pub Date : 2022-10-22 DOI: 10.1109/ICSGSC56353.2022.9963020
Qihao Zhong, Keng C. Wu, Nianhua Luo, Zhenliang Chen, Jianquan Shi
{"title":"Inverse Park Transformation PLL for VSC-HVDC under Unbalanced Voltage Condition","authors":"Qihao Zhong, Keng C. Wu, Nianhua Luo, Zhenliang Chen, Jianquan Shi","doi":"10.1109/ICSGSC56353.2022.9963020","DOIUrl":"https://doi.org/10.1109/ICSGSC56353.2022.9963020","url":null,"abstract":"To realize the fast and accurate extraction of positive-sequence fundamental voltage phase of VSC-HVDC under unbalanced grid. A design scheme of three-phase phase-locked loop (PLL) based on inverse park transform is proposed., that is, the production of quadrature signals is realized by inverse park transform. Theoretically., it is proved that the proposed scheme can effectively carry out signal quadrature processing., and the design method of its key parameters is given. Then., based on the quadrature signal generator., a PLL suitable for VSC-HVDC system under the unbalanced power grid is constructed. The simulation results show that the PLL has good adaptability and can quickly lock the phase.","PeriodicalId":66748,"journal":{"name":"智能电网(汉斯)","volume":"5 1","pages":"98-102"},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83011996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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