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2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)最新文献

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Study of Superconducting Fault Current Limiters for MMC-MTDC with HVDC CBs 高压直流断路器MMC-MTDC超导故障限流器的研究
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2019-05-21 DOI: 10.1109/ISGT-Asia.2019.8881817
Jianlong Sun, Xiao Han, Yan Li, Zheren Zhang, Zheng Xu, Yuzhe Xu
{"title":"Study of Superconducting Fault Current Limiters for MMC-MTDC with HVDC CBs","authors":"Jianlong Sun, Xiao Han, Yan Li, Zheren Zhang, Zheng Xu, Yuzhe Xu","doi":"10.1109/ISGT-Asia.2019.8881817","DOIUrl":"https://doi.org/10.1109/ISGT-Asia.2019.8881817","url":null,"abstract":"To minimize the impact of dc faults in modular multilevel converter based multi-terminal high voltage transmission system (MMC-MT-HVDC, MMC-MTDC), HVDC circuit breakers (HVDC CBs) combined with superconducting fault current limiters (SFCLs) was a preferred choice. For MMC-MTDC with HVDC CBs and SFCLs, this paper firstly analyzed the dc fault characteristics based on the equivalent electrical circuit for different operation stages. Then, this paper introduced the basic principle of resistive SFCLs and inductive SFCLs, and their effect in limiting the dc fault current. Based on the main purposes for installing SFCLs, this paper proposed a dc side main circuit parameters selection method for determining the parameters of the smoothing reactor and the SFCLs. The case studies are performed on a ±500 kV 3-ternimal MMC-MTDC system. The time-domain simulation results showed that both the resistive SFCLs and the inductive SFCLs could limit the dc fault current to a reasonable extend by selecting the proper parameters of the smoothing reactor and the SFCLs, and the energy stress on the voltage limiting element of the HVDC CBs is more severe when using the inductive SFCLs.","PeriodicalId":257974,"journal":{"name":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116999569","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
Simulation of PV Grid-connected Inverter Based on PSCAD 基于PSCAD的光伏并网逆变器仿真
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2019-05-21 DOI: 10.1109/ISGT-Asia.2019.8881247
Zhang Jian, Lin Fang, Zhang Weijun, Zhang Yi, Ruan Zhengxin
{"title":"Simulation of PV Grid-connected Inverter Based on PSCAD","authors":"Zhang Jian, Lin Fang, Zhang Weijun, Zhang Yi, Ruan Zhengxin","doi":"10.1109/ISGT-Asia.2019.8881247","DOIUrl":"https://doi.org/10.1109/ISGT-Asia.2019.8881247","url":null,"abstract":"In order to study the supraharmonic transmission and propagation characteristics of photovoltaic grid-connected inverter, a more accurate model of photovoltaic grid-connected inverter was proposed based on PSCAD simulation software. Firstly, the model of the photovoltaic system is built. Secondly, the inverter control method suitable for dynamic analysis of grid connection is modeled, and the voltage and current double loop control strategy is adopted to realize the decoupling control of active and reactive power. Finally, a simulation model was built and the influence of the main parameters of the photovoltaic system, such as illumination, temperature and switching frequency, on the level of the supraharmonic emitted by it was analyzed. And then the correctness of the model is verified by comparison with the field measured data. The model provides an effective simulation platform for verifying the superaharmonic current and voltage emissions of photovoltaic grid-connected inverters under working conditions.","PeriodicalId":257974,"journal":{"name":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129335484","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
Low Complexity Non-Intrusive Load Disaggregation of Air Conditioning Unit and Electric Vehicle Charging 空调机组低复杂度非侵入式负荷分解与电动汽车充电
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2019-05-21 DOI: 10.1109/ISGT-Asia.2019.8881113
A. Rehman, Tek Tjing Lie, B. Vallès, S. R. Tito
{"title":"Low Complexity Non-Intrusive Load Disaggregation of Air Conditioning Unit and Electric Vehicle Charging","authors":"A. Rehman, Tek Tjing Lie, B. Vallès, S. R. Tito","doi":"10.1109/ISGT-Asia.2019.8881113","DOIUrl":"https://doi.org/10.1109/ISGT-Asia.2019.8881113","url":null,"abstract":"Energy monitoring is inevitable towards achieving energy efficiency and conservation. Load disaggregation is one of the techniques towards effective energy monitoring. In the said domain, Non-Intrusive Appliance Load Monitoring (NIALM) is an attractive method where aggregated load data are acquired from a single metering point and segregated appliance level load is estimated using effective software techniques. This paper presents a low complexity event-based NIALM technique based on supervised machine learning. In this paper, the emphasis is on the disaggregation of Air Conditioning (AC) unit and Electric Vehicle (EV) charging loads due to their high significance for the overall power grid stability improvement. A comprehensive digital simulation has been carried out to validate the performance of the proposed approach and intended appliances are aptly classified having an outcome of 97% for same Data ID and 95% for different Data ID in terms of precision, recall, and f-score performance metrics.","PeriodicalId":257974,"journal":{"name":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123347021","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: 13
Fault Analysis for Three Phase Unbalanced Distribution Network with Photovoltaic Generation Integration 带光伏发电一体化的三相不平衡配电网故障分析
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2019-05-21 DOI: 10.1109/ISGT-Asia.2019.8881776
Huan Li, K. Peng, Xinhui Zhang, S. Zeng, Junge Li
{"title":"Fault Analysis for Three Phase Unbalanced Distribution Network with Photovoltaic Generation Integration","authors":"Huan Li, K. Peng, Xinhui Zhang, S. Zeng, Junge Li","doi":"10.1109/ISGT-Asia.2019.8881776","DOIUrl":"https://doi.org/10.1109/ISGT-Asia.2019.8881776","url":null,"abstract":"Due to the asymmetry of three phase distribution network parameters, the traditional symmetrical method cannot meet the requirement for fault analysis. This paper aims to calculate the fault current of the unbalanced distribution network by employing the phase component modelling. A three-phase model of the unbalanced distribution network with photovoltaic generation system is proposed, considering the low voltage ride through control of photovoltaic generation system. A phase based iterative algorithm is explored to solve the three-phase voltage and short-circuit current. The impact of different connected locations and capacities of photovoltaic power generation on fault characteristics are analyzed.","PeriodicalId":257974,"journal":{"name":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123710299","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
Analysis of Coordinated Control Strategy for Large-scale Renewable Energy VSCHVDC Integration 大型可再生能源VSCHVDC集成协调控制策略分析
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2019-05-21 DOI: 10.1109/ISGT-Asia.2019.8881171
Li Yan, W. Zhibin, Chi Yongning, W. Chunxia, Li Hongzhi, T. Haiyan
{"title":"Analysis of Coordinated Control Strategy for Large-scale Renewable Energy VSCHVDC Integration","authors":"Li Yan, W. Zhibin, Chi Yongning, W. Chunxia, Li Hongzhi, T. Haiyan","doi":"10.1109/ISGT-Asia.2019.8881171","DOIUrl":"https://doi.org/10.1109/ISGT-Asia.2019.8881171","url":null,"abstract":"When a large-scale renewable energy source is connected to a VSC-HVDC grid and the VSC-HVDC system is used for long-distance transmission, the operational characteristics of the renewable energy and the VSC-HVDC grid will affect each other. The adaptability of the renewable energy to the VSC-HVDC grid will become an important factor affecting the operation of the grid. China has built the Nanao three-terminal VSC-HVDC project, the Zhoushan five-terminal VSC-HVDC project, and the two- terminal of the Xiamen VSC-HVDC project. Breakthroughs have been made in the impact of AC/DC system interconnection and key equipment technologies for VSC-HVDC transmission systems, especially VSC-HVDC converters and control protection technology. This paper focuses on the two main problems with renewable energy island integration. The first problem is how the VSC-HVDC grid provides a stable AC voltage to the renewable energy source without AC grid support. The second issue is how to maintain the energy balance of the VSC-HVDC system in the event of a fault. When the receiving end fails, the power energy cannot be sent out. When the sending end fails, the energy will accumulate in the VSC-HVDC grid. The resulting overvoltage and overcurrent problems require new control protection technology to will be introduced in this paper.","PeriodicalId":257974,"journal":{"name":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123590065","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: 4
Research on the Influence of Demand Response on the Life of Distribution Network Transformer 需求响应对配电网变压器寿命的影响研究
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2019-05-21 DOI: 10.1109/ISGT-Asia.2019.8881522
Jiefu Tian, Hui Ren, Lin Hu, Fei Wang, Huixin Feng
{"title":"Research on the Influence of Demand Response on the Life of Distribution Network Transformer","authors":"Jiefu Tian, Hui Ren, Lin Hu, Fei Wang, Huixin Feng","doi":"10.1109/ISGT-Asia.2019.8881522","DOIUrl":"https://doi.org/10.1109/ISGT-Asia.2019.8881522","url":null,"abstract":"The traditional distribution network has gradually been replaced by the active distribution network (ADN) with active control and management methods. In the previous studies on ADN, the influence of demand response (DR) on the operation status of power equipment was rarely considered. This paper studies the influence of DR on transformer life. Firstly, based on the IEEE-33 nodes example, the load curve of the ADN transformer node is established, and the load is subdivided into two types: rigid load and flexible load. Then, the active distribution network regulation model of flexible load and adjustable load is established in order to simulate the adjustment effect of DR on the load curve. Finally, the thermal aging model and the percentage of loss of life (LOL%) are used to calculate the life loss of the transformer before and after DR. The validity and practicability of the method are verified by a case study.","PeriodicalId":257974,"journal":{"name":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127423695","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: 2
Optimized Planning of P2G Plant in Integrated Electricity and Natural Gas System 电、气一体化系统中P2G装置的优化规划
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2019-05-21 DOI: 10.1109/ISGT-Asia.2019.8881808
Kaige Hu, Jian Li, Xiao Xu, Weihao Hu, Qi Huang, Shuwen Xu, Dechao Xu, Zhe Chen
{"title":"Optimized Planning of P2G Plant in Integrated Electricity and Natural Gas System","authors":"Kaige Hu, Jian Li, Xiao Xu, Weihao Hu, Qi Huang, Shuwen Xu, Dechao Xu, Zhe Chen","doi":"10.1109/ISGT-Asia.2019.8881808","DOIUrl":"https://doi.org/10.1109/ISGT-Asia.2019.8881808","url":null,"abstract":"The wind resource is comparatively abundant and the installed capacity of wind power in some areas has increased rapidly in recent years, but the phenomenon of the curtailment of wind power under high penetration is still serious. Power-to-gas (P2G) can be used as a large-scale storage device to store the excess wind power. In this paper, an optimal planning strategy for integrated electricity and natural gas system by means of particle swarm optimization (PSO) is proposed, the P2G devices are added in this hybrid system. The goal of this strategy is to optimize the sizing of P2G plant based on return on investment (ROI) index. The results show that the optimal sizing of P2G plant is 92.43 MW which can reduce about 70% excess wind power, and the ROI is 16.45 years.","PeriodicalId":257974,"journal":{"name":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129109670","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
Reliability Evaluation of Voltage Source Converters for MVDC Applications MVDC电压源变换器的可靠性评估
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2019-05-21 DOI: 10.1109/ISGT-Asia.2019.8881326
Gayan Abeynayake, Gen Li, T. Joseph, Wenlong Ming, Jun Liang, A. Moon, Kevin Smith, James Yu
{"title":"Reliability Evaluation of Voltage Source Converters for MVDC Applications","authors":"Gayan Abeynayake, Gen Li, T. Joseph, Wenlong Ming, Jun Liang, A. Moon, Kevin Smith, James Yu","doi":"10.1109/ISGT-Asia.2019.8881326","DOIUrl":"https://doi.org/10.1109/ISGT-Asia.2019.8881326","url":null,"abstract":"The emerging Medium Voltage Direct Current (MVDC) distribution networks are becoming more attractive due to their flexible control of power flow and lower losses compared to traditional AC networks. This will significantly increase the wide uptake of renewable energy sources. Voltage source converters (VSCs) are the main building blocks of modern DC systems. Achieving a high reliability is an important aspect of selecting the converters for a specific project. However, it is still unclear which type of VSC is the most suitable solution for MVDC systems. This paper addresses this question from the reliability point of view. Three commonly used VSCs are considered for the analysis namely, two-level (2L), three-level NPC (3L-NPC), modular multi-level (MMC) converters and the cascaded three-level VSC which is currently being built for the first MVDC link in the UK. The results suggest that during the early stage of operation MMC shows a higher reliability. However, in the long run the other VSCs have shown higher reliabilities.","PeriodicalId":257974,"journal":{"name":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129841642","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: 7
Abnormal Electricity Consumption Detection from Incomplete Records in Power System 基于电力系统不完整记录的异常用电量检测
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2019-05-21 DOI: 10.1109/ISGT-Asia.2019.8881182
Yang Zhang, P. Colella, A. Mazza, E. Bompard, E. Roggero, G. Galofaro
{"title":"Abnormal Electricity Consumption Detection from Incomplete Records in Power System","authors":"Yang Zhang, P. Colella, A. Mazza, E. Bompard, E. Roggero, G. Galofaro","doi":"10.1109/ISGT-Asia.2019.8881182","DOIUrl":"https://doi.org/10.1109/ISGT-Asia.2019.8881182","url":null,"abstract":"Due to the limited channel bandwidth or interference signals in the advance metering infrastructures, there are usually some missing or human-revised data among the electricity consumption records of civilian customers. In order to make full use of this kind of records, machine learning techniques are introduced in this paper for electricity consumption sensitivity analysis regarding to the weather features. With the missing and revised records filtered out, each customer would have an individual regression model between weather conditions and the power demand. The importance of variables in the regression model is regarded as the sensitivity to various weather features. Then the abnormal consumption patterns are detected with a typical outlier identification algorithm based on different weather sensitivities among all the customers. The methods used in this paper show good results to identify the abnormal consumption patterns effectively regardless the quality of the original data.","PeriodicalId":257974,"journal":{"name":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132039563","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
OLT Analysis and Protection Control Design for ±800kV UHVDC System ±800kV特高压直流系统OLT分析及保护控制设计
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2019-05-21 DOI: 10.1109/ISGT-Asia.2019.8881725
Dongliang Nan, Yuting Dong, Hongshan Zhuang, Jie Wu, Yezhou Yang, Yonghui Sun
{"title":"OLT Analysis and Protection Control Design for ±800kV UHVDC System","authors":"Dongliang Nan, Yuting Dong, Hongshan Zhuang, Jie Wu, Yezhou Yang, Yonghui Sun","doi":"10.1109/ISGT-Asia.2019.8881725","DOIUrl":"https://doi.org/10.1109/ISGT-Asia.2019.8881725","url":null,"abstract":"In this paper, based on basic protection and control principle of the open line test in UHVDC transmission system, the influences of the variation of firing angle of the converter on open line voltage is analyzed in detail, when the firing angle of the converter is reduced to less than 60°, the DC voltage can be still risen to its rated value in the condition that the intensity of the corona discharge in DC transmission line is not broken. In the practical engineering test, when the firing angle of the converter is reduced to 45.1°, the open line voltage can be risen to the rated value 800kV. At the same time, we can know that the current protection principle with line open circuit test can only use direct current and differential current more than 0.025pu as the main criterion.","PeriodicalId":257974,"journal":{"name":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126631968","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
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