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2018 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)最新文献

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Study of a New Structure of Three-Phase Saturated-Core Fault Current Limiter 三相饱和铁心故障限流器新结构的研究
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556770
Haocong Shen, Jianyong Zheng, Haoyuan Sha, Changjia She, Fei Mei
Saturated-core’s high demand for DC bias source and low utilization of the iron core limits its development. Some papers put forward new structures to solve this problem, but new challenges appears. This paper proposes a novel SCFCL which uses permanent magnet to provide more magneto motive force (MMF) to offset the influence of original PMs on the cores when fault occurs. The new structure of AC coils proposed makes SCFCL be applied to all circumstances of short-circuit fault, not merely single-phase short-circuit fault. Analysis of the equivalent magnetic circuit of new structure and finite-element analysis simulations in different situations in JMAG are performed to verify the performance of current limiting.
饱和铁心对直流偏压源要求高,铁心利用率低,限制了其发展。一些论文提出了新的结构来解决这一问题,但也出现了新的挑战。本文提出了一种新型的SCFCL,在故障发生时利用永磁体提供更大的磁动势(MMF)来抵消原永磁对铁芯的影响。所提出的新型交流线圈结构使SCFCL不仅适用于单相短路故障,而且适用于所有短路故障情况。对新结构的等效磁路进行了分析,并在JMAG中进行了不同情况下的有限元分析仿真,验证了限流的性能。
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引用次数: 3
Framework and Implementation of Linkage Control for Unmanned Smart Substation Security Improvement 无人智能变电站安全改进的联动控制框架与实现
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556697
Ai Zheng, Qi Huang, Dongsheng Cai, Shi Jing, Jie Wu
Linkage control of Substation Auxiliary Control System (SACS) improves unmanned smart substation (USS) security by self-restoring of Intelligent Electronic Devices (IEDs). However IEC61850 standard doesn’t define the protocol for linkage control. This paper proposes a framework of linkage control on the priority-based method, which resolves interoperability between different IEDs. Then, the structure of remote integrated application server (RIAS) is expended to implement the proposed linkage control scheme in SACS. In the end, four SACS scenarios with linkage control were tested. The results show that priority-based linkage control has better performance in security and reliability of SACS by comparison with time-based linkage control.
变电站辅助控制系统(SACS)的联动控制通过智能电子设备(ied)的自恢复来提高无人智能变电站的安全性。但是IEC61850标准并没有定义联动控制的协议。本文提出了一种基于优先级的链接控制框架,解决了不同ied之间的互操作性问题。然后,扩展了远程集成应用服务器(RIAS)的结构,在SACS中实现了所提出的联动控制方案。最后,对四种带有联动控制的SACS场景进行了测试。结果表明,与基于时间的联动控制相比,基于优先级的联动控制在SACS的安全性和可靠性方面具有更好的性能。
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引用次数: 0
Detection of Energy Theft and Metering Defects in Advanced Metering Infrastructure Using Analytics 利用分析技术检测先进计量基础设施中的能源盗窃和计量缺陷
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556710
Sook-Chin Yip, ChiaKwang Tan, Wooi-Nee Tan, Ming-Tao Gan, Koksheik Wong, R. Phan
Non-technical losses including electricity theft and anomalies in meter readings are estimated to cost the utility providers tremendous losses of approximately $96 billion per annum. The adoption of smart meter has encouraged utility providers to use analytics to identify theft. To curb nontechnical losses, they are increasingly leveraging on real-time smart metering and analytics to identify energy theft and irregularities in meter readings. We have previously put forward linear regression-based and linear programming-based anomaly detection frameworks to study consumers’ energy consumption behavior for detecting the localities of metering defects as well as energy thefts. In this work, we design and construct an advanced metering infrastructure test rig in the laboratory to perform comparison studies on our previously proposed anomaly detection frameworks in smart grid environment. Results from both test rig and simulations show that linear regression-based anomaly detection framework is able to identify the positions of energy thieves and faulty smart meters without requiring large volume of data samples. However, linear programming-based framework is more robust as compared to linear regression-based because the former is capable of detecting more sophisticated types of energy theft/meter irregularities accurately even in the presence of technical losses/calibration errors.
非技术损失,包括电力盗窃和电表读数异常,估计每年给公用事业公司造成约960亿美元的巨大损失。智能电表的采用鼓励公用事业供应商使用分析来识别盗窃。为了减少非技术损失,他们越来越多地利用实时智能计量和分析来识别能源盗窃和电表读数的违规行为。我们之前提出了基于线性回归和基于线性规划的异常检测框架来研究消费者的能源消费行为,以检测计量缺陷和能源盗窃的位置。在这项工作中,我们在实验室设计并构建了一个先进的计量基础设施测试平台,对我们之前提出的智能电网环境下的异常检测框架进行了比较研究。测试和仿真结果表明,基于线性回归的异常检测框架能够在不需要大量数据样本的情况下识别能源窃贼和故障智能电表的位置。然而,与基于线性回归的框架相比,基于线性规划的框架更具鲁棒性,因为前者能够在存在技术损失/校准错误的情况下准确检测更复杂类型的能源盗窃/仪表异常。
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引用次数: 10
A Novel Location Method for Grounding Electrode Line Fault Caused by Unipolar Fault of the HVDC Transmission System 一种新的直流输电系统单极故障接地电极线路故障定位方法
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556673
Chun Zhang, Yufei Teng, Xiaopeng Li, Qi Huang, Zhenyuan Zhang, Feng Li
In order to achieve the quick and accurate location of the grounding electrode line fault and reduce the time of power supply recovery, a fault location method based on oscillation frequency of the neutral bus transient voltage is proposed. Theoretical analysis reveals the relationship between oscillation frequency of neutral bus voltage and grounding electrode line inductance. By taking the line model and its frequency dependent characteristics into consideration, the relation between the frequency and the fault distance of the grounding electrode line is established to realize the fault location algorithm. Field case is used to check the method, the results show that it is effective and accurate without additional hardware and software configuration.
为了实现接地电极线路故障的快速准确定位,减少供电恢复时间,提出了一种基于中性母线暂态电压振荡频率的故障定位方法。理论分析揭示了中性点母线电压振荡频率与接地电极线电感的关系。通过考虑线路模型及其频率依赖特性,建立接地电极线路频率与故障距离的关系,实现故障定位算法。现场算例验证了该方法的有效性和准确性,无需额外的硬件和软件配置。
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引用次数: 2
Using the Entropy for Typical Load Curve Classification 熵在典型负荷曲线分类中的应用
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556687
D. Hock, Martin Kappes
Clusters of energy consumers can be utilized to improve the accuracy of load forecasting or to introduce differentiated and personalized tariffs according to the consumers energy demand. In this paper, we aim to classify energy load curves according to their similarity with other households. We present the entropy as quantitative metric for Typical Load Curve Classification and clustering. Furthermore, we present the likelihood of time periods to uniquely distinguish load curves of residential households and approximate the minimal required time resolution for classification tasks. Results, using a real world data set, we confirm the practical relevance and feasibility of our approach.
可以利用能源消费者集群来提高负荷预测的准确性,或者根据消费者的能源需求引入差异化和个性化的电价。在本文中,我们的目标是根据其与其他家庭的相似度对能源负荷曲线进行分类。将熵作为典型负荷曲线分类和聚类的定量度量。此外,我们提出了时间段的可能性,以唯一区分居民家庭的负荷曲线,并近似分类任务所需的最小时间分辨率。结果,使用真实世界的数据集,我们证实了我们的方法的实际相关性和可行性。
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引用次数: 0
A Research for the Influence of Tilt Angles of the Solar Panel on Photovoltaic Power Generation 太阳能电池板倾角对光伏发电影响的研究
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556655
Huanan Liu, Xinyi Xu, Yuanzhu Meng, Dongmin Yu, Huanan Liu, Kun Shi
The development of new energy industry together with environmental protection is converting photovoltaic industry in to a more attractive energy supply option. At the consumption level, solar PV is the most widespread generation technology due to infinity, easy maintenance and declining running costs. The dependence of solar energy generation on the tilt angle affects the power generation. Therefore, understanding the effects of tilt angles for managing PV generation is a key aspect for current and new customers with rooftop PV installations. Considering the differences of the solar radiation conditions in different regions, a solar radiation model on the inclined plane is established in this paper. Taking the rooftop photovoltaic system of Jilin Electric Power Research Institute as the research object and considering the factors such as latitude, solar radiation and covering areas, the tilt angle of solar panels is optimized. Based on the simulation results, it is found that the power generation efficiency of the solar panel with a tiled mode is lower than that with a tilt angle. But more solar panels can be installed in a fixed area if the installation mode is tile. And the tile installation mode can improve the total power generation of a fixed area.
新能源产业的发展和环境保护正在使光伏产业成为一个更具吸引力的能源供应选择。在消费层面,太阳能光伏是最广泛的发电技术,由于无限,易于维护和运行成本下降。太阳能发电对倾斜角度的依赖性影响着发电。因此,了解倾斜角度对管理光伏发电的影响是现有和新客户屋顶光伏安装的关键方面。考虑到不同地区太阳辐射条件的差异,本文建立了斜面上的太阳辐射模型。以吉林电力科学研究院屋顶光伏系统为研究对象,综合考虑纬度、太阳辐射、覆盖面积等因素,对太阳能电池板倾斜角度进行优化。仿真结果表明,平铺太阳能电池板的发电效率低于倾斜太阳能电池板的发电效率。但如果安装方式是瓦片,则可以在固定区域安装更多的太阳能电池板。并且瓦片安装方式可以提高固定区域的总发电量。
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引用次数: 4
Steady State Load Decomposition Method Combining Template Matching with K-Nearest Neighbor Algorithms 结合模板匹配和k -最近邻算法的稳态负荷分解方法
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556765
Xiaoyu Zhang, Z. Luan, Zhiliang Zhang
Non-intrusive load monitoring and decomposition technology is one of the most important components of smart grid. It is the basis for in-depth analysis of user electricity information, which is of great importance to improve user quality of life and improve grid services. In this paper, a new load decomposition method combining template matching with k-nearest neighbor algorithm is proposed based on the study of steady-state load decomposition model. It solves the existing problems of unknown load, dependence on training data, and difficult identification of low-power devices. It uses the collected data of the actual operation of the electrical appliances and through adding unknown load of different power, the simulation was carried out by MATLAB to verify that the method in this paper is feasible in practical applications.
非侵入式负荷监测与分解技术是智能电网的重要组成部分之一。它是深入分析用户用电信息的基础,对提高用户生活质量、改善电网服务具有重要意义。本文在研究稳态负荷分解模型的基础上,提出了一种模板匹配与k近邻算法相结合的负荷分解新方法。它解决了现有的负载未知、依赖训练数据、小功率器件识别困难等问题。利用采集到的电器实际运行数据,通过加入不同功率的未知负载,通过MATLAB进行仿真,验证本文方法在实际应用中的可行性。
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引用次数: 4
H2D4-Type Single Phase Transformer-Less Inverter with Reactive Power Control for Grid-tied PV System 并网光伏系统无功控制的h2d4型单相无变压器逆变器
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556641
Sifat Rezwan, S. Hossain, Samiha Tasnim, Md. Mizanur Rahman
Transformer-less inverter is popular for grid-tied photovoltaic (PV) system due to low cost, smaller size and higher efficiency. However, one of the technical challenges, which need to be handled carefully, is the issue of leakage current. Moreover, an inverter must be capable of controlling the reactive power to a certain extend to maintain the power factor (PF) close to unity. Therefore, many inverter topologies have been proposed. In this paper, a new four diodes and two IGBT switch based H2D4-type highly efficient transformer-less inverter is proposed that can handle the issue of leakage current maintaining low total harmonic distortion (THD) and higher PF where the common mode (CM) voltage is maintained constant. As a result, the leakage current deceases and the conduction loss as well as size of the system is decreased due to minimum number of IGBT switches. Furthermore, two control systems are proposed to control the reactive power with desire PF. The comparison among proposed H2D4 topology and conventional neutral point clamped (NPC) and H6 topology have been analyzed in this paper. To validate the accuracy of the theoretical analysis, the compared topologies are simulated in MATLAB/Simulink software. It is found that the PLL and PI closed loop control based H2D4 inverter topology controls the reactive power maintaining a low current THD with higher efficiency and high PF as compared to the system with only PI control based topology.
无变压器逆变器具有成本低、体积小、效率高等优点,在并网光伏系统中得到广泛应用。然而,其中一个需要小心处理的技术挑战是漏电流问题。此外,逆变器必须能够在一定程度上控制无功功率,以保持功率因数(PF)接近于一致。因此,许多逆变器拓扑被提出。本文提出了一种新型的基于四二极管和两个IGBT开关的h2d4型高效无变压器逆变器,可以在共模电压保持恒定的情况下,解决漏电流保持低总谐波失真(THD)和高PF的问题。因此,由于IGBT开关数量最少,泄漏电流减小,导通损耗和系统尺寸减小。在此基础上,提出了两种控制系统来控制无功功率,并对H2D4拓扑与传统中性点箝位(NPC)和H6拓扑进行了比较分析。为了验证理论分析的准确性,在MATLAB/Simulink软件中对比较的拓扑结构进行了仿真。研究发现,与仅基于PI控制拓扑的系统相比,基于PLL和PI闭环控制的H2D4逆变器拓扑控制无功功率保持低电流THD,效率更高,PF高。
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引用次数: 4
Hygrothermal Modeling and MPC-based Control for Energy and Comfort Management in Buildings 基于mpc的建筑热湿建模与节能控制
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556801
Farah Gabsi, F. Hamelin, N. Sauer
This article treats the problem of modeling and controlling a multi-zone office building to ensure its hygrothermal comfort through optimal and cost-effective management. An analysis of the hygrothermal behavior is carried out, which leads to a set of descriptor state-space models. Based on this modeling, an iterative optimization algorithm is proposed to solve the optimization problem associated to the model predictive control (MPC) design. By means of an original cost function based on peak/no peak energy consumption, significant energy savings can be envisaged in practice.
本文讨论了多区域办公楼的建模和控制问题,通过优化和经济的管理来保证其湿热舒适性。对热湿特性进行了分析,得到了一组描述符状态空间模型。在此基础上,提出了一种迭代优化算法来解决模型预测控制(MPC)设计中的优化问题。通过基于峰值/无峰值能耗的原始成本函数,可以在实践中设想显著的节能。
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引用次数: 4
Research on Automatic Generation Technology for Secondary Equipment of Security Measures of Smart Substation 智能变电站安全措施二次设备自动发电技术研究
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556667
Jie Wu, Ming-zhong Liu, Yongkang Zheng, Shi Jing, Qi Huang
In order to assist the secondary shift personnel to carry out the intelligent substation maintenance operation, a method of automatic generation of the second maintenance safety measures of intelligent substation is presented. Based on the maintenance safety mechanism of intelligent substation and the technical principle of ensuring maintenance safety, the types and functions of secondary safety measures are summarized. The maintenance equipment, accompanying equipment, associated operation equipment and maintenance boundary are defined. It includes design maintenance-stop base library, single equipment base library and maintenance safety measures filter rule base and it instantiates the base library by using the whole station system configuration file. The application and scope of "one-button" automatic double secondary maintenance safety measures and transparent display maintenance security measures are realized. Finally, the effectiveness of the method is verified by the pilot project, and it has good practicability.
为了辅助二次值班人员进行智能变电站检修作业,提出了一种智能变电站二次检修安全措施自动生成的方法。根据智能变电站的检修安全机理和保障检修安全的技术原理,总结了二级安全措施的类型和作用。明确了维修设备、配套设备、相关作业设备和维修边界。它包括设计检修停机库、单台设备库和检修安全措施过滤规则库,并利用全站系统配置文件实例化了该库。实现了“一键式”自动双二次维修安全措施和透明显示维修安全措施的应用和范围。最后,通过实例验证了该方法的有效性,具有良好的实用性。
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引用次数: 1
期刊
2018 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)
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