2020 IEEE Industry Applications Society Annual Meeting最新文献

Seasonal Variations of Tower Footing Impedance in Various Transmission Line Grounding Systems 输电线路接地系统塔底阻抗的季节变化

2020 IEEE Industry Applications Society Annual Meeting Pub Date : 2020-10-10 DOI: 10.1109/IAS44978.2020.9334763

Chenyang Wang, Xiaodong Liang, Emerson Adajar, P. Loewen

引用次数: 5

Signal Processing Technique for AC Corona Pulses and Charge Computation 交流电晕脉冲信号处理技术及电荷计算

2020 IEEE Industry Applications Society Annual Meeting Pub Date : 2020-10-10 DOI: 10.1109/IAS44978.2020.9334875

Aayush Suri, V. JohnLeo, Saquib Khan, D. ShakthiPrasad

{"title":"Signal Processing Technique for AC Corona Pulses and Charge Computation","authors":"Aayush Suri, V. JohnLeo, Saquib Khan, D. ShakthiPrasad","doi":"10.1109/IAS44978.2020.9334875","DOIUrl":"https://doi.org/10.1109/IAS44978.2020.9334875","url":null,"abstract":"Corona discharge has been one of the well-researched areas in the air breakdown study. The understanding of AC corona is mainly prompted to design proper hardware for the power systems. In the present study, the characteristics of AC corona current pulses is studied for a point to plane geometry (gap distance of 5 mm) under low pressure, room temperature condition, using a signal processing technique. High voltage varying from 1 kV to 15 kV is applied to the needle to generate the corona discharge at two different pressures of 1000 mbar and 500 mbar. The corona current pulses are captured across a resistor using a shunt box (which is EMI shielded) connected to a ground electrode. The characterisation of the captured pulses is done using signal processing techniques in MATLAB. The sinusoidal component of the AC corona current is filtered out using curve fitting and the high-frequency base noise is removed from the filtered waveform using thresholding. Different parameters like the number of pulses, associated charge during positive and negative half of the cycle, and phase distribution of the negative pulses are presented. Interestingly, it was found that the charge associated with the negative pulses was more at the low voltage condition and as the voltage increased, net charge during the ionization shifted towards positive. This study is thought to be useful in understanding the nature of the charges produced in the ionization via the corona pulses.","PeriodicalId":115239,"journal":{"name":"2020 IEEE Industry Applications Society Annual Meeting","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123698869","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

Preemptive Medium-Low Voltage Arc Flash Detection with Geometric Distribution Analysis on Magnetic Field 基于磁场几何分布分析的抢先式中低压电弧闪光检测

2020 IEEE Industry Applications Society Annual Meeting Pub Date : 2020-10-10 DOI: 10.1109/IAS44978.2020.9334913

Zhenyuan Zhang, Xiaotian Tang, Weijen Lee

{"title":"Preemptive Medium-Low Voltage Arc Flash Detection with Geometric Distribution Analysis on Magnetic Field","authors":"Zhenyuan Zhang, Xiaotian Tang, Weijen Lee","doi":"10.1109/IAS44978.2020.9334913","DOIUrl":"https://doi.org/10.1109/IAS44978.2020.9334913","url":null,"abstract":"As power distribution systems become increasingly interconnected and concentrated, the risk of arc flash events in low magnitude arc faults are attracting more attentions. Since such event can occur without causing sufficiently high current due to high arcing resistance and weak system source, the fault is difficult to detect by over-current protection. Therefore, the early stage low-magnitude arc fault detection and potential hazard level evaluation are essentially to be investigated. To overcome the limitations of traditional arc fault detection method, such as low sensitivity, delayed detection, complex structure, susceptible to interference of other sources, etc., meanwhile improves response time and minimizes false alarms, this paper explores a novel arc flash detection mechanism, which utilized the magnetic sensor array based spatial magnetic field analysis, to be able to precisely locate arcing position, evaluate the arcing current with associated potential hazard level and take action to prevent faults in the apparatus. With a series actual cases based simulations are performed, the proposed method shows a better ability to detecting the dynamic behaviors of arc transients, especially on the forming stage of arc flash, and easy to be used in estimation of incident energy level and the possibly flow direction. These results offer valuable information to develop reliable system and techniques to evaluate and mitigate the the potential hazards during an arc flash.","PeriodicalId":115239,"journal":{"name":"2020 IEEE Industry Applications Society Annual Meeting","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122451045","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

Activity Detection and Recognition With Passive Electric Field Sensors 无源电场传感器的活动检测与识别

2020 IEEE Industry Applications Society Annual Meeting Pub Date : 2020-10-10 DOI: 10.1109/IAS44978.2020.9334850

M. Noras

引用次数: 5

A Novel Hierarchical Demand Response Strategy for Residential Microgrid with Time-Varying Price 一种具有时变电价的住宅微电网分层需求响应策略

2020 IEEE Industry Applications Society Annual Meeting Pub Date : 2020-10-10 DOI: 10.1109/IAS44978.2020.9334895

Zhenyuan Zhang, Yuxiang Huang, Qi Huang, Weijen Lee

{"title":"A Novel Hierarchical Demand Response Strategy for Residential Microgrid with Time-Varying Price","authors":"Zhenyuan Zhang, Yuxiang Huang, Qi Huang, Weijen Lee","doi":"10.1109/IAS44978.2020.9334895","DOIUrl":"https://doi.org/10.1109/IAS44978.2020.9334895","url":null,"abstract":"With the increasing proportion of distributed energy resources (DER) penetrated into the distribution power systems, Microgrids are widely used in the operation of power system. Renewable energy generation is known to be uncertain and volatile. Incentive-Based Demand Response (IBDR) is a good option to reduce the effect of this drawbacks because it has better timeliness and lower cost than other method. In this paper, a versatile hierarchical demand response strategy is proposed. With the determination of hierarchical incentive coefficients and the corresponding response quantities, the rebound effect considered dynamic DR decision-making strategy is established to optimize the total costs of residents. In order to verify the effectiveness of the strategy in cost saving, Monte Carlo algorithm is used for verification, where the optimization rate under the fluctuant price and stochastic power vacancy is calculated. Besides, two types of participating users were considered in the response results, and the confidence intervals for the response quantities under different price were calculated. The result shows the effectiveness of this strategy in reducing cost while the deficiency of DER occurs.","PeriodicalId":115239,"journal":{"name":"2020 IEEE Industry Applications Society Annual Meeting","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117091989","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

An Accurate Accelerated Steady-State Model For Modular Multilevel Converters With Very High Voltage Levels 高电平模块化多电平变换器的精确加速稳态模型

2020 IEEE Industry Applications Society Annual Meeting Pub Date : 2020-10-10 DOI: 10.1109/IAS44978.2020.9334761

R. K. Subroto, Y. Chen, K. Lian, C. Chu

{"title":"An Accurate Accelerated Steady-State Model For Modular Multilevel Converters With Very High Voltage Levels","authors":"R. K. Subroto, Y. Chen, K. Lian, C. Chu","doi":"10.1109/IAS44978.2020.9334761","DOIUrl":"https://doi.org/10.1109/IAS44978.2020.9334761","url":null,"abstract":"Compared with the conventional two-level voltage source converters (VSCs), multilevel VSCs (MVSCs) have lower common mode voltage, lower voltage stress on power switches, lower dv/dt ratio, and better harmonic content. Among the available MVSCs, modular multilevel VSCs are particularly suitable for an high voltage direct current (HVDC) transmission system. Nevertheless, for an HVDC system, each phase of the MMC terminal may consist of several hundreds of submodules (SMs). This imposes a particularly challenging in terms of steady-state simulation and modeling. Steady-state modeling is usually needed for determining the operating point for the MMC controller design and for predicting harmonics propagation in a power network. In this paper, a highly efficient and accurate steady-state model for an MMC system with high voltage levels is proposed. The model is based on a model reduction technique recently proposed, which is named Adaptive Residual-Time Restarting Krylov Subspace (ARTRKS) method. As will be shown in the paper, the proposed method is able to model various MMC systems. The results obtained from the proposed model are highly agreeable with those from PSCAD/EMTDC. Moreover, it will also be shown that proposed method can drastically reduce the computation time for obtaining steady state solutions.","PeriodicalId":115239,"journal":{"name":"2020 IEEE Industry Applications Society Annual Meeting","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129574137","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

A Method for Discriminating the Moisture Status of OIP Bushing based on Dissado-Hill and GWO-HMM Model 基于Dissado-Hill和GWO-HMM模型的OIP衬套水分状态判别方法

2020 IEEE Industry Applications Society Annual Meeting Pub Date : 2020-10-10 DOI: 10.1109/IAS44978.2020.9334894

Wei Liao, Lijun Zhou, Chuanhui Zhang, Dong Wang, Jun Zhang, Lei Guo

{"title":"A Method for Discriminating the Moisture Status of OIP Bushing based on Dissado-Hill and GWO-HMM Model","authors":"Wei Liao, Lijun Zhou, Chuanhui Zhang, Dong Wang, Jun Zhang, Lei Guo","doi":"10.1109/IAS44978.2020.9334894","DOIUrl":"https://doi.org/10.1109/IAS44978.2020.9334894","url":null,"abstract":"An accurate discrimination on moisture status (MS) of oil-impregnated paper (OIP) bushings is crucial for the maintenance and replacement schedule of bushings. Based on frequency-domain spectroscopy (FDS) measurement and Dissado-Hill (DH) relaxation model, this paper proposes a hybrid approach of hidden Markov model and gray wolf optimization (GWO-HMM) for MS estimation of bushings subjected to the ununiform moisture distribution and dynamic time-series modeling. First, simulation models of moisture diffusion and FDS of the OIP bushing were constructed using finite element modelling (FEM) approach. Then, the GWO algorithm was employed to explore dielectric parameters influenced by moisture in DH model. Then, GWO-HMMs was further adopted as a classification tool to discriminate the MS. The GWO-HMMs was applied to estimate the MS of bushings using both simulation and experimental data. Classification results confirm that the average identification accuracies of the proposed method are 98.08% and 97.61% over these two datasets, which demonstrates the effectiveness of the proposed moisture estimate method for OIP bushings.","PeriodicalId":115239,"journal":{"name":"2020 IEEE Industry Applications Society Annual Meeting","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129680808","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: 6

A Multi-timescale Response Capability Evaluation Model of EV Aggregator Considering Customers’ Response Willingness 考虑用户响应意愿的电动汽车聚合器多时间尺度响应能力评价模型

2020 IEEE Industry Applications Society Annual Meeting Pub Date : 2020-10-10 DOI: 10.1109/IAS44978.2020.9334926

Xiangchu Xu, Kangping Li, Fei Wang, Zengqiang Mi, Yulong Jia, Yanwei Jing

{"title":"A Multi-timescale Response Capability Evaluation Model of EV Aggregator Considering Customers’ Response Willingness","authors":"Xiangchu Xu, Kangping Li, Fei Wang, Zengqiang Mi, Yulong Jia, Yanwei Jing","doi":"10.1109/IAS44978.2020.9334926","DOIUrl":"https://doi.org/10.1109/IAS44978.2020.9334926","url":null,"abstract":"With the popularization of charging piles and the development of V2G (vehicle-to-grid) technology, electric vehicles (EVs) will have more and more opportunities to participate in the operation and scheduling of electric power system. As an agent between the power grid and EV customers, electric vehicle aggregator (EVA) need to comprehend the available EVs’ response capacity (RC) when trading with the system operator. This paper proposes a model aiming to evaluate the multitimescale RC of EVA. The RC evaluation of EVA takes into account the response willingness of EV customers, which can make the evaluation of RC boundary more accurate. Firstly, a temporal RC evaluation model of EV monomer considering chargedischarge state and state of charge (SOC) is established. Secondly, based on the consumer psychology model which reflects the relationship between customers' responsivity and incentive price, a multi-timescale RC evaluation model of EVA considering customers' willingness is built. The day-ahead RC of EVA is evaluated by the state prediction data of EVs. According to the control strategy which considers response time (RT) and SOC indicators comprehensively, the RC evaluation results of EVA is revised in intra-day. Finally, using the statistical data from the EU MERGE project, the effectiveness of the proposed evaluation model is verified, and the impact of incentive price and scheduling time scale on the RC of EVA are analyzed. The results indicate that the proposed model can effectively track the scheduling goals of the system and realize the dynamic update of the RC of EVA.","PeriodicalId":115239,"journal":{"name":"2020 IEEE Industry Applications Society Annual Meeting","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126895704","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

The Impact of Coupling Degree on Optimal Operation of Integrated Energy System 耦合程度对综合能源系统优化运行的影响

2020 IEEE Industry Applications Society Annual Meeting Pub Date : 2020-10-10 DOI: 10.1109/IAS44978.2020.9334914

Huacan Lv, Chengfu Wang, Yong Wang, Xi Chen, Ming Yang, Zhenwei Zhang

引用次数: 0

A Saturated Amorphous Alloy Core-based Inrush Current Limiter 基于饱和非晶合金铁心的涌流限流器

2020 IEEE Industry Applications Society Annual Meeting Pub Date : 2020-10-10 DOI: 10.1109/IAS44978.2020.9334905

M. Islam, K. Muttaqi, D. Sutanto

{"title":"A Saturated Amorphous Alloy Core-based Inrush Current Limiter","authors":"M. Islam, K. Muttaqi, D. Sutanto","doi":"10.1109/IAS44978.2020.9334905","DOIUrl":"https://doi.org/10.1109/IAS44978.2020.9334905","url":null,"abstract":"In this paper, a new saturated amorphous alloy core-based inrush current limiter (ICL) has been designed and built to limit the inrush current of a power transformer. A toroidal core with a middle limb is developed using the Metglas amorphous alloy and the middle limb is excited with a dc-current to saturate the core. Under normal condition, this developed ICL imposes low impedance and has a negligible effect on the operation of the system. During switching on to energize a power transformer connected in series with the ICL, the large inrush current desaturates the ICL core, increasing the ac winding impedance which limits the peak amplitude of the transformer inrush current. To validate the proposed saturated amorphous alloy core-based ICL, a prototype ICL has been built and tested in the laboratory and the core power loss, core saturation, and inrush current, are compared with those from sheet steel core-based ICL, and the performance of the proposed saturated amorphous alloy core-based ICL is found to be significantly better. It is expected that the proposed saturated amorphous alloy core can be used in future as an inrush current limiter that can help to improve the performance of the power transmission and distribution system.","PeriodicalId":115239,"journal":{"name":"2020 IEEE Industry Applications Society Annual Meeting","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121330327","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