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2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)最新文献

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Research on evolvement approach of multiple stability forms and AC/DC coordinated control strategy in large power grid 大型电网多种稳定形式演化方法及交直流协调控制策略研究
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779756
Z. Hongli, Fusuo Liu, Li Wei, Xi Li, Ke Xianbo, Weiying Ping
{"title":"Research on evolvement approach of multiple stability forms and AC/DC coordinated control strategy in large power grid","authors":"Z. Hongli, Fusuo Liu, Li Wei, Xi Li, Ke Xianbo, Weiying Ping","doi":"10.1109/APPEEC.2016.7779756","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779756","url":null,"abstract":"Multiple stability forms such as angle stability, volt-age stability and frequency stability may occur under severe faults in large power grid. In this paper, impacts on the interactive evolvement of multiple stability problems are studied and quantified, which are brought by relevant factors such as the fault severity, load model and DC control mode. In addition, AC/DC coordinated control strategy is proposed under the condition that multiple stability forms coexist on the basis of theoretical analysis, which can get the per unit model of control strategy of generating unit tripping, load shedding, DC modulation, etc, and the method proposed above can enhance the applicability of dealing with multiple stability problems at the same time. Finally, simulation study on the actual electric net-work is presented to verify the effectiveness and advantage of the proposed AC/DC coordinated control strategy.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132434693","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 new protection scheme based on distributed decision in smart distribution grid 基于分布式决策的智能配电网保护新方案
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779508
Xin Huang, Qing Chen, Xinyue Si, J. Si
{"title":"A new protection scheme based on distributed decision in smart distribution grid","authors":"Xin Huang, Qing Chen, Xinyue Si, J. Si","doi":"10.1109/APPEEC.2016.7779508","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779508","url":null,"abstract":"With the development of smart distribution network, the distribution system is introduced with a large number of distributed generations (DGs). It becomes an active network that both the load and fault currents flow two-way, which leads to serious impacts on the protection's selectivity and sensitivity. In this paper, by analyzing current characteristics of a typical distribution network with DGs, a new distributed decision protection method which combines traditional over-current scheme and distributed wide-area protection is proposed. In this method, each line needs to install a smart terminal unit (STU) which obtains local data of current amplitude and direction in real time and processes them into logical values used to realize a specified logical operation. According to local and adjacent STU's calculation results, STUs can judge the fault area without synchronous sampling and isolate the fault by controlling the local protective devices accurately and quickly.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115876215","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 improved time-domain fault-location algorithm for HVDC transmission line 一种改进的高压直流输电线路时域故障定位算法
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779943
Yingdan Qiu, Haifeng Li, Jiyang Wu, Yanxun Guo, G. Wang
{"title":"An improved time-domain fault-location algorithm for HVDC transmission line","authors":"Yingdan Qiu, Haifeng Li, Jiyang Wu, Yanxun Guo, G. Wang","doi":"10.1109/APPEEC.2016.7779943","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779943","url":null,"abstract":"Considering the frequency-dependent characteristics of HVDC transmission line, the error of calculated voltage distribution along the line is analyzed. Based on this, a voltage distribution calculation method using mixed line parameters is developed. Then, given that the voltage distributions of non-fault points calculated at both terminals have the largest difference around the fault time, the maximum voltage difference zone of non-fault points is defined to solve the problem that the difference of voltage distribution along the line change with the fault transient process. Thus, an improved time-domain fault-location algorithm is proposed. Finally, a PSCAD/EMTDC simulation model of one real HVDC project was constructed and extensive simulation results have verified the correctness of the proposed algorithm.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134142772","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
Performance evaluation of single SVM and LSSVM based forecasting models using price zones analysis 基于价格区域分析的单支持向量机和LSSVM预测模型的性能评价
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779474
Xing Yan, Yonghua Song, N. Chowdhury
{"title":"Performance evaluation of single SVM and LSSVM based forecasting models using price zones analysis","authors":"Xing Yan, Yonghua Song, N. Chowdhury","doi":"10.1109/APPEEC.2016.7779474","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779474","url":null,"abstract":"According to the current electricity price forecasting studies, it was very difficult to conclude whether support vector machine (SVM) or least squares support vector machine (LSSVM) is more suitable in solving highly non-linear regression problems with very large time horizon such as mid-term electricity market clearing price (MCP) forecasting. In this paper, a detailed evaluation process using price zones analysis technique is applied in evaluating single SVM and single LSSVM based mid-term electricity MCP forecasting models. Based on much more detailed performance evaluation results and consideration of requirements for machine learning techniques utilizing in longer time horizon and highly nonlinear questions, the proposed paper concluded that SVM is more suitable than LSSVM in mid-term electricity MCP forecasting. Numerical examples using PJM interconnection data are utilized to illustrate the conclusion.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133236279","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
Coordinated optimization of district electricity and heating system based on genetic algorithm 基于遗传算法的区域电力供热系统协调优化
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779749
Hailin Ge, Fei Liu, Haoyong Chen, Cong Zhang
{"title":"Coordinated optimization of district electricity and heating system based on genetic algorithm","authors":"Hailin Ge, Fei Liu, Haoyong Chen, Cong Zhang","doi":"10.1109/APPEEC.2016.7779749","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779749","url":null,"abstract":"Interconnection and coupling between electric power, heating and natural gas systems are becoming closer and closer. From the point of view of coordinated optimization, through the establishment of mathematical model of district electricity and heating system, a coordinated optimization model of district electricity and heating system based on genetic algorithm is constructed in this paper. A typical district electricity and heating system in engineering is modelled and analyzed using the above mentioned model, the average convergence characteristics and optimization effect are studied. Through the experimental results, the practicability and validity of the coordinated optimization model of district electricity and heating system based on genetic algorithm are verified. The research contents of this paper lays the foundation for the operation optimization of district electricity and heating system.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133171784","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
Power quality assessment of current electrical vehicle charging processes 当前电动汽车充电过程电能质量评价
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779745
J. C. Hernández, A. Medina, F. Jurado
{"title":"Power quality assessment of current electrical vehicle charging processes","authors":"J. C. Hernández, A. Medina, F. Jurado","doi":"10.1109/APPEEC.2016.7779745","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779745","url":null,"abstract":"The penetration of electrical vehicles (EVs) has an impact not only in the presumably increasing electrical demand, but also on power quality (PQ) of low-voltage (LV) radial distribution systems (RDSs), specifically in the harmonic current emission. Thus, it is essential that EV battery charging system designers should be aware of the potential impact of their designs on harmonic emission. Since the effect of charging systems on RDSs is not merely the numerical sum of total harmonic distortion (THD), harmonic phase cancellation may take place, harmonic phase angles should be also investigated. A theoretical background description on harmonics allowed us to perform a suitable campaign of harmonics measurements. Ten sets of measurements were performed on complete charging cycles of two different types of EVs. The results included the statistical characterization of individual harmonic current distortion and phase angle in order to account for randomness during the charging process.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132747097","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: 9
Load shedding strategy coordinate optimization based on sensitivity analysis 基于灵敏度分析的减载策略协调优化
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779818
Dandan Zhang, Wenbo Li, Zhe Jiang, Naihu Wu, Yanwen Hou
{"title":"Load shedding strategy coordinate optimization based on sensitivity analysis","authors":"Dandan Zhang, Wenbo Li, Zhe Jiang, Naihu Wu, Yanwen Hou","doi":"10.1109/APPEEC.2016.7779818","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779818","url":null,"abstract":"The paper proposes a coordinate optimization strategy of load shedding based on sensitivity analysis, which starts from optimizing the control method for load shedding when multi-line overload at the same time. Used of node voltage equation and incidence matrix, the integrated sensitivity relationship between the change of node's load and all current of the overload lines is derived. The node comprehensive sensitivity is put forward which considers the difference of lines' overload coefficient and is used to select alternative nodes. Weighted sum of economic cost and balance index was taken as objective function to establish the load shedding optimization model and the model is solved by the adaptive particle swarm optimization algorithm of nonlinear weight. The simulation results of a practical system show that the optimal load shedding strategy can be quickly obtained.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133034283","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
Capacity planning of battery energy storage system within wind farm 风电场电池储能系统容量规划
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779805
Qian Dai, Xiaohui Qin, Jingqi Yang, Pingliang Zeng, Qinyong Zhou, Feng Zhao
{"title":"Capacity planning of battery energy storage system within wind farm","authors":"Qian Dai, Xiaohui Qin, Jingqi Yang, Pingliang Zeng, Qinyong Zhou, Feng Zhao","doi":"10.1109/APPEEC.2016.7779805","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779805","url":null,"abstract":"The capacity planning of a battery energy storage system (BESS) in a wind farm is proposed, which considered a coordinated operational dispatch strategy for a wind farm with BESS. The planning objective is based on the minimum deviation value of wind farm power output as referenced. The most significant advantage in the proposed model is that the lifetime of BESS and forecasting error of wind power are considered. The planning model finally can be resolved by the particle swarm optimization. The case studies are used to validate the performance of the proposed model.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122513276","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
On-line incipient faults detection in underground cables based on single-end sheath currents 基于单端护套电流的地下电缆早期故障在线检测
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779604
Chao Zhang, X. Kang, Xiuda Ma, Shuai Jiang, Xiao-Xue Qu
{"title":"On-line incipient faults detection in underground cables based on single-end sheath currents","authors":"Chao Zhang, X. Kang, Xiuda Ma, Shuai Jiang, Xiao-Xue Qu","doi":"10.1109/APPEEC.2016.7779604","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779604","url":null,"abstract":"Incipient faults in underground cables would repeatedly occur until they evolve into permanent faults. Detection of incipient faults can determine the status of cable insulation and provide an early warning before the breakdown of underground cables. The characteristics of traveling waves of incipient faults are analyzed in the modal domain, and the theoretical analysis shows that the sum of sheath currents can be used to detect incipient faults. Both the over-current and the wavelet transform modulus maximum of the sum of single-end sheath currents are examined to detect an incipient fault. After an incipient fault is detected, the faulty phase is selected according to the root-mean-squares of three phases. A cable system model is built in PSCAD/EMTDC, and simulation results show that the detection algorithm can accurately detect incipient faults under different fault conditions.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121834898","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: 10
Performance of ROCOF protection in PV system 光伏系统roof保护性能研究
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779545
Bohan Liu, Xiangping Ni, Guo-zeng Yan, Bo Li, K. Jia
{"title":"Performance of ROCOF protection in PV system","authors":"Bohan Liu, Xiangping Ni, Guo-zeng Yan, Bo Li, K. Jia","doi":"10.1109/APPEEC.2016.7779545","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779545","url":null,"abstract":"Due to deregulation and the use of renewable power, especially solar power, the proportion of PV system is rapidly increasing and most of them are connected to distribution networks to supply power to the grid as well as local loads. There are many power quality issues to be considered with PV systems and one of the main issues is islanding. It is important to estimate and detect an islanding situation quickly and accurately as it can lead to serious plant damage if the grid is suddenly reconnected. This paper investigates the characteristics of ROCOF relays which affect the operation responses and analyze the ROCOF performance for PV systems islanding detection. The equivalent impedance value V2/P is introduced as an interlock function to cooperate with ROCOF relays to avoid false operation during the non-islanding situation. It is shown that it can block nuisance tripping signals quickly and accurately. The range of effectiveness is established for the small power imbalances where there is a small potentially non-detection zone due to the overlap range of the impedance value.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116836576","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
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