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An Identification Method of Fault Type Based on GWO-SVM for Distribution Network 基于GWO-SVM的配电网故障类型识别方法
2019 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2019-11-01 DOI: 10.1109/iSPEC48194.2019.8974903
Liwei Xie, Yong Li, L. Luo, Yijia Cao, Wei-jiang Hu, Yu Zhang, Xiaohui Song
{"title":"An Identification Method of Fault Type Based on GWO-SVM for Distribution Network","authors":"Liwei Xie, Yong Li, L. Luo, Yijia Cao, Wei-jiang Hu, Yu Zhang, Xiaohui Song","doi":"10.1109/iSPEC48194.2019.8974903","DOIUrl":"https://doi.org/10.1109/iSPEC48194.2019.8974903","url":null,"abstract":"To achieve the accurate and fast identification of fault type for distribution network, a fault type identification method based on grey wolf optimization algorithm (GWO) and support vector machine (SVM) is proposed in this paper. When faults occur, the zero-sequence voltage of fault signals are obtained, and then the low-frequency energy values of them are calculated. Then the wavelet singular entropy value is calculated by Singular value decomposition (SVD) method and entropy theory. The low-frequency energy values and singular entropy values are used as the input of GWO-SVM classifier to identify the fault type. The results of simulations show that the proposed method can identify all grounding faults and short-circuit faults correctly, and the prediction accuracy is better than it of SVM classifier.","PeriodicalId":413554,"journal":{"name":"2019 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127603091","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
Risk Assessment Method Based on Cloud Model for Distribution Network 基于云模型的配电网风险评估方法
2019 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2019-11-01 DOI: 10.1109/iSPEC48194.2019.8975278
Fengyu Li, Yong Li, Hua Liu, Liwei Xie, Yijia Cao, Yu Zhang, Xiaohui Song
{"title":"Risk Assessment Method Based on Cloud Model for Distribution Network","authors":"Fengyu Li, Yong Li, Hua Liu, Liwei Xie, Yijia Cao, Yu Zhang, Xiaohui Song","doi":"10.1109/iSPEC48194.2019.8975278","DOIUrl":"https://doi.org/10.1109/iSPEC48194.2019.8975278","url":null,"abstract":"To improve the safe level of operation and security guarantee for distribution network. This paper proposes a risk assessment method based on cloud prediction model for distribution network. First, the cloud theory is used in distribution network main equipment failure prediction to build prediction rule based on cloud generator. On the basis of the prediction rule, a cloud-based distribution network main equipment failure rate prediction model is built. Then, failure rate and power outage user-hours of load were calculated based on distribution network main equipment failure rate and net topology with minimum path method. The assessment method could be used to estimate the risk of distribution network in order to scan the weakness in distribution operation. Finally, the test results of IEEE-RBTS BUS6 indicate the failure rate, failure time, risk of the load point can be calculated. The results demonstrate the effectiveness of the proposed method.","PeriodicalId":413554,"journal":{"name":"2019 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127874241","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 Optimal Configuration of Mico-gas turbine and Storage Device in an Integrated Energy System Based on Genetic Algorithm 基于遗传算法的集成能源系统中微型燃气轮机与储能装置的经济优化配置
2019 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2019-11-01 DOI: 10.1109/iSPEC48194.2019.8974878
Zhou Liang, Yongsheng Hao, Junli Zhang
{"title":"Economic Optimal Configuration of Mico-gas turbine and Storage Device in an Integrated Energy System Based on Genetic Algorithm","authors":"Zhou Liang, Yongsheng Hao, Junli Zhang","doi":"10.1109/iSPEC48194.2019.8974878","DOIUrl":"https://doi.org/10.1109/iSPEC48194.2019.8974878","url":null,"abstract":"Integrated energy system always works under poor economy because of its own characteristics. In order to improve the economic benefits, this paper studies the optimization scheme in configuration stage. For an integrated system in residential community building that located in a hot in summer and cold in winter region, a mixed integer nonlinear programming model is established, with configuration and operation economic performances all being considered at the same time. The model is simplified reasonably and then solved by the genetic algorithm, which is proved suitable for this problem. Moreover, after adding initial seeds, the solver efficiency can be improved. The differences between other strategies and the economic optimal strategies are compared, and the improvement direction of this system economy is qualitatively analyzed. Result shows that the most important optimization factors are the energy storage equipment and the peak-valley electricity price.","PeriodicalId":413554,"journal":{"name":"2019 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126480078","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: 3
Optimization Dispatch of Integrated Natural Gas and Electricity Energy System under the Mode of Electricity-Orientated 以电为导向模式下的气电一体化能源系统优化调度
2019 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2019-11-01 DOI: 10.1109/iSPEC48194.2019.8975333
Jianxi Wang, Yonghui Sun, Zhou Xu, Junjie Xiong
{"title":"Optimization Dispatch of Integrated Natural Gas and Electricity Energy System under the Mode of Electricity-Orientated","authors":"Jianxi Wang, Yonghui Sun, Zhou Xu, Junjie Xiong","doi":"10.1109/iSPEC48194.2019.8975333","DOIUrl":"https://doi.org/10.1109/iSPEC48194.2019.8975333","url":null,"abstract":"The coupling and complementary utilization of multiple energy sources is the basis of energy structure optimization, and the accommodation of renewable energy is the key issue in power system industry. In this paper, through the cooperation of gas turbine (GT) and power-to-gas (P2G) equipment, an integrated natural gas and electric power system (IGES) with bidirectional energy transmission is constructed. The gas turbine is used as the peak shaving unit of power system, and the excessive wind power is accommodated by P2G, which is converted into natural gas stored in gas storage tanks (GST). The contract model is proposed to regulate the natural gas in GST injected to pipeline network generated by P2G. Finally, the 14-bus natural gas system (NGS) and the IEEE-14-bus electric power system (EPS) are used to construct the IGES system with the mode of Electricity-Orientated. Aiming at the optimization of economy, by comparing the wind power accommodation in two scenarios, it shows that P2G can effectively accommodate wind power, and that injecting natural gas generated by P2G into gas network by contract can reduce the uncertainty of gas network dispatching.","PeriodicalId":413554,"journal":{"name":"2019 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128091245","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: 3
High-Frequency Instability Evaluation in Railway System Considering Frequency-Coupling Dynamics 考虑频率耦合动力学的铁路系统高频失稳评估
2019 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2019-11-01 DOI: 10.1109/iSPEC48194.2019.8974855
Haidong Tao, Haitao Hu, Xiaojuan Zhu, K. Lei, Zhengyou He
{"title":"High-Frequency Instability Evaluation in Railway System Considering Frequency-Coupling Dynamics","authors":"Haidong Tao, Haitao Hu, Xiaojuan Zhu, K. Lei, Zhengyou He","doi":"10.1109/iSPEC48194.2019.8974855","DOIUrl":"https://doi.org/10.1109/iSPEC48194.2019.8974855","url":null,"abstract":"Over the past years, the high-frequency instability issues, beyond half the switching frequency, have been aroused frequently in several railway systems. The averaging model has been continuously developed for exploring the origin of small-signal instability issue. However, since the inherent sampling nature has been neglected by averaging process, the small-signal averaging model is a single-frequency model and omits frequency-coupling components. Hence, by considering the high-frequency coupling components, this paper proposes a 2-order multi-frequency matrix model that can analyze the instability issue at high frequency range. Moreover, the frequency scan result is obtained, which denotes that the multi-frequency model can accurately evaluate the input admittance of the locomotive beyond half the switching frequency, and further analyze the high-frequency instability issue. Hardware-in-the -loop (HIL) experimental results validate the theoretical analysis.","PeriodicalId":413554,"journal":{"name":"2019 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128180829","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
Research on Power Supply Reliability Insurance Mechanism Considering "Getting Electricity" Index 考虑“有电”指标的供电可靠性保险机制研究
2019 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2019-11-01 DOI: 10.1109/iSPEC48194.2019.8974976
Huang Daoshan, Du Pei, Liu Zhixuan, Huang He, Chen Jie
{"title":"Research on Power Supply Reliability Insurance Mechanism Considering \"Getting Electricity\" Index","authors":"Huang Daoshan, Du Pei, Liu Zhixuan, Huang He, Chen Jie","doi":"10.1109/iSPEC48194.2019.8974976","DOIUrl":"https://doi.org/10.1109/iSPEC48194.2019.8974976","url":null,"abstract":"In recent years, the focus of attention of power utility and large customers is to improve the reliability of power supply and reduce user losses through necessary risk control measures. \"Getting electricity\" index is an important index to evaluate the reliability of power supply for regional customers. It is proposed that financial risk control measures taking into account the \"getting electricity\" index can help customers transfer risks and avoid reliability losses to a certain extent. Firstly, three typical insurance mechanisms are introduced and their characteristics are analyzed. Secondly, based on the \"getting electricity\" index, the calculation model of compensation point and compensation cost is established. Then the mathematical model of insurance premium rate is established by using the principle of expected benefit, and the premium is calculated. Finally, the economy and effectiveness of the proposed scheme are verified by simulation experiments.","PeriodicalId":413554,"journal":{"name":"2019 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132011600","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
A Scenario-based Storage Planning Framework with Probabilistic Guarantees 基于场景的概率保证存储规划框架
2019 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2019-11-01 DOI: 10.1109/iSPEC48194.2019.8975144
Chao Yan, Xinbo Geng, Le Xie, Z. Bie
{"title":"A Scenario-based Storage Planning Framework with Probabilistic Guarantees","authors":"Chao Yan, Xinbo Geng, Le Xie, Z. Bie","doi":"10.1109/iSPEC48194.2019.8975144","DOIUrl":"https://doi.org/10.1109/iSPEC48194.2019.8975144","url":null,"abstract":"The deepening penetration of renewable energy resources poses critical challenges on the secure and reliable operation of power systems. Energy storage, which could smooth out the fluctuations brought about by the renewables, is one major solution to addressing those challenges. Storage planning, which determines the optimal site and size of the energy storage system, could effectively facilitate the integration of renewables. To consider the impacts of uncertain renewables, this paper proposes a probabilistic framework for storage planning. It explicitly models the operation risk by incorporating individual chance constraints. The chance constraints are converted to deterministic constraints using historical data via the scenario approach. The probabilistic storage planning problem is further decomposed into an upper- level problem and several lower-level problems, and solved via a sub-gradient cutting-plane algorithm. Numerical simulations are conducted on the IEEE 6-bus system.","PeriodicalId":413554,"journal":{"name":"2019 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132551872","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
Hybrid Energy Flow Calculation for Electric-Thermal Coupling System Based on Inexact Newton Method 基于非精确牛顿法的电热耦合系统混合能流计算
2019 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2019-11-01 DOI: 10.1109/iSPEC48194.2019.8975152
Sen Qi, Gengfeng Li, Z. Bie
{"title":"Hybrid Energy Flow Calculation for Electric-Thermal Coupling System Based on Inexact Newton Method","authors":"Sen Qi, Gengfeng Li, Z. Bie","doi":"10.1109/iSPEC48194.2019.8975152","DOIUrl":"https://doi.org/10.1109/iSPEC48194.2019.8975152","url":null,"abstract":"As the foundation of planning and operation, hybrid energy flow analysis of integrated energy system is of significance. To improve the computational efficiency, this paper proposes a hybrid energy flow calculation method for electric-thermal coupling systems based on a parallelized Inexact Newton method. The proposed method uses an iterative method to solve the modified equations during energy flow calculations. By selecting reasonable iterative algorithm, precondition method and iterative convergence criterion, it can effectively improve the efficiency of energy flow calculations and facilitate parallelization calculations. In this paper, we consider the asymmetric positive definiteness characteristics of the Jacobian matrix during energy flow calculation. The generalized minimization residual method (GMRES) is chosen as the internal iterative algorithm of the Inexact Newton method, and the incomplete LU decomposition method (ILU) is proposed as the precondition method to accelerate the internal iterative convergence speed. The constant forcing factor is used as the internal convergence criterion. The algorithm is designed with GPU parallelization. Finally, the effectiveness of the proposed method is verified by extensive case studies.","PeriodicalId":413554,"journal":{"name":"2019 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133866331","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: 3
Environmental and Economic Dispatch With Photovoltaic and Wind Power 利用光伏和风力发电进行环境和经济调度
2019 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2019-11-01 DOI: 10.1109/iSPEC48194.2019.8975242
Qingqing Yin, Zhenshu Wang, Tiantian Sun, Wenqiao Li, Fayu Chong
{"title":"Environmental and Economic Dispatch With Photovoltaic and Wind Power","authors":"Qingqing Yin, Zhenshu Wang, Tiantian Sun, Wenqiao Li, Fayu Chong","doi":"10.1109/iSPEC48194.2019.8975242","DOIUrl":"https://doi.org/10.1109/iSPEC48194.2019.8975242","url":null,"abstract":"At present, highly developed industry leads to global environmental pollution crisis. The problem of air pollution is widely concerned. Protecting the ecological environment and promoting sustainable development are the common challenges facing mankind all over the world. In this paper, an optimal dispatching model of environment and economy is proposed to explore the environmental and economic impact of wind power and photovoltaic connect to power system under different air quality. In this paper, the environmental air quality constraint emission method of power generation is established; the unique environmental and economic costs of each unit are calculated under different environmental constraints; the environmental and economic dispatching (EED) model is constructed, and the dynamic dual-population particle swarm (DDPSO) optimization algorithm is adopted to optimize it. Finally, the feasibility of the proposed model is verified through the simulation results.","PeriodicalId":413554,"journal":{"name":"2019 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134360742","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
Robust Damping Controller for DFIG-Based Wind Turbine with Frequency Response 基于dfig的风电机组频率响应鲁棒阻尼控制
2019 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2019-11-01 DOI: 10.1109/iSPEC48194.2019.8975002
Lei Ba, W. Yao, Lin Jiang
{"title":"Robust Damping Controller for DFIG-Based Wind Turbine with Frequency Response","authors":"Lei Ba, W. Yao, Lin Jiang","doi":"10.1109/iSPEC48194.2019.8975002","DOIUrl":"https://doi.org/10.1109/iSPEC48194.2019.8975002","url":null,"abstract":"This paper proposes a robust damping controller for a doubly-fed induction generator (DFIG)-based wind turbine to mitigate system oscillation during frequency response (FR) and provide robust damping performance considering uncertain system operating points. Small signal stability results of DFIG with FR controller in a single machine infinity bus (SMIB) system and a 4-machine 11-bus (4M11B) system are obtained which indicate that a new lightly damped oscillation mode is excited by the FR controller, which will lead system oscillation and deteriorate system stability. In addition to the new excited oscillation mode, the system operating points are uncertain due to power grid strength variation, power system structure change etc. Therefore, a robust damping controller is desired and proposed in this paper for DFIG equipped with FR controller. A conventional damping controller designed by residue method is also modelled in this paper. The effectiveness of the proposed robust damping controller is verified by comparing the small signal stability analysis results and simulation results to a conventional damping controller. Both small signal stability analysis results and simulation results indicate that the proposed robust damping controller shows the robust damping performance and less frequency deviation under different system operating points.","PeriodicalId":413554,"journal":{"name":"2019 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"17 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132805898","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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