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Real-time power control of superconducting magnetic energy storage 超导磁能存储的实时功率控制
2012 IEEE International Conference on Power System Technology (POWERCON) Pub Date : 2012-10-01 DOI: 10.1109/POWERCON.2012.6401307
Dan Wang, Zhengjie Wu, Gang Xu, Da-da Wang, Meng Song, Xiao-tao Peng
{"title":"Real-time power control of superconducting magnetic energy storage","authors":"Dan Wang, Zhengjie Wu, Gang Xu, Da-da Wang, Meng Song, Xiao-tao Peng","doi":"10.1109/POWERCON.2012.6401307","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401307","url":null,"abstract":"Power control of superconducting magnetic energy storage plays an important role in realizing its applications in power system. Taking current source converter and voltage source converter as research objects, this paper discusses a SPWM switching strategy , which realizes effective control of amplitude and phase of converter's AC current. On this basis, this paper presents a power control method which is available in operating real-time regulation on active and reactive power of both superconducting magnetic energy storages. Simulation results show that the studied power regulation method is effective in accomplishing rapid decoupling control of input-output active and reactive power of superconducting magnetic energy storages within four-quadrant, the results meanwhile verify the correctness and feasibility of that strategy.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131940183","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
Early warning mechanism for power system large cascading failures 电力系统大型级联故障预警机制
2012 IEEE International Conference on Power System Technology (POWERCON) Pub Date : 2012-10-01 DOI: 10.1109/POWERCON.2012.6401378
Hui Ren, Xiaozhou Fan, D. Watts, Xingchen Lv
{"title":"Early warning mechanism for power system large cascading failures","authors":"Hui Ren, Xiaozhou Fan, D. Watts, Xingchen Lv","doi":"10.1109/POWERCON.2012.6401378","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401378","url":null,"abstract":"As the interconnection of power grids, failure of single component could propagate out, and because of the scale of the power system, it is almost impossible to analysis all failure patterns. Traditional methods for online cascading analysis could face almost unsolvable obstacles on computational burden and accuracy. This paper discusses the mechanisms of early warning of cascading blackouts. Researches have shown, from the complex system point of view, the existence of early-warning signals to indicate for a wide class of systems whether a critical threshold is approaching. Instead of focusing on identifying the possible failure patterns that could lead to cascading blackouts, from the complex system point of view, early warning of cascading blackouts could be realized by identifying how far the system is to the critical state by simulation using fast computational techniques and a group of system indices, providing helpful aid for the operator.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128299935","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
Reliability and economic analysis of UHV Half-Wave-length AC Transmission 特高压半波长交流传输的可靠性与经济性分析
2012 IEEE International Conference on Power System Technology (POWERCON) Pub Date : 2012-10-01 DOI: 10.1109/POWERCON.2012.6401413
Yunting Song, Bing Fan, Yunxiao Bai, Xiaohui Qin, Zhiqiang Zhang
{"title":"Reliability and economic analysis of UHV Half-Wave-length AC Transmission","authors":"Yunting Song, Bing Fan, Yunxiao Bai, Xiaohui Qin, Zhiqiang Zhang","doi":"10.1109/POWERCON.2012.6401413","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401413","url":null,"abstract":"Based on the preliminary study on technical feasibility of UHV Half Wave-length AC Transmission (HWACT), the study focus on the economic analysis and reliability assessment of UHV HWACT. Combined with the latest economic analysis research results of UHV AC and DC transmission technology, the minimal cost method are used to perform different schemes comparison and sensitivity analysis between the UHV HWACT and ±800 kV UHV DC transmission in this paper. The critical economic transmission capacity and upper limit of additional control cost are given in this paper. The economic analysis of UHV HWACT and ±1000 kV UHV DC transmission are compared. Furthermore, UHV HWACT and ±800 kV UHV DC transmission are evaluated by reliability evaluation method, and quantitative reliability results are obtained.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"307 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122320484","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: 17
Economic and pricing signals in electricity distribution systems: A bibliographic survey 电力分配系统中的经济和定价信号:书目调查
2012 IEEE International Conference on Power System Technology (POWERCON) Pub Date : 2012-10-01 DOI: 10.1109/POWERCON.2012.6401470
Z. Zhang, N. Nair
{"title":"Economic and pricing signals in electricity distribution systems: A bibliographic survey","authors":"Z. Zhang, N. Nair","doi":"10.1109/POWERCON.2012.6401470","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401470","url":null,"abstract":"Extensive research publications are available on wholesale market structure, but implementation and research on market mechanism in distribution systems meets technical, social and regulatory hurdles. Based on distribution system characteristics and dynamic status, economic signals exist for investment and operation in distribution networks. The implementation of Smart Grids technologies affects the interest of parties involved in distribution sector, making economic and pricing signals more relevant and necessary. This paper is a bibliography survey to summarize the recognized publications that have been done in the areas of distribution network fixed cost allocation, investment deferral evaluation, distributed resources planning, distribution loss allocation, reliability based payments, dynamic pricing, and demand-side integration. The relevance of topics to New Zealand situation is discussed to show the interconnection of underlying issues. It provides reference list for future research and industrial application on economic distribution network investment and operation within Smart Grids environment.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116487493","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
Simulation studies on mitigating subsynchronous resonance with coaxial double fed motor 同轴双馈电机抑制次同步谐振的仿真研究
2012 IEEE International Conference on Power System Technology (POWERCON) Pub Date : 2012-10-01 DOI: 10.1109/POWERCON.2012.6401312
Xu Jinfeng, Song Ruihua, Xiang Zutao, W. Xiaojun, Du Ning
{"title":"Simulation studies on mitigating subsynchronous resonance with coaxial double fed motor","authors":"Xu Jinfeng, Song Ruihua, Xiang Zutao, W. Xiaojun, Du Ning","doi":"10.1109/POWERCON.2012.6401312","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401312","url":null,"abstract":"With the rotor's AC excitation characteristics, the double fed motor can realize free control of the rotational speed and the torque, so it has advantages on mitigating subsynchronous resonance (SSR). This paper proposes the method of using double fed motor for mitigating SSR for the first time. When double fed motor and generator are installed coaxially, the double fed motor can bring in damping torque to the shaft directly, so as to mitigate SSR. By analyzing the transfer characteristics of the damping torque attached to the shaft by coaxial double fed motor, as well as supplementary subsynchronous damping control strategy, it is indicated that this method can mitigate SSR in the closed-loop control effectively. Based on IEEE SSR first benchmark, simulation model about coaxial double fed motor for SSR mitigation is built. Simulation results show that the proposed coaxial double fed motor for SSR mitigation is effective.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129564091","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
Balancing of instantaneous power flow in local area power network with Tellegen's theorem 基于Tellegen定理的局域电网瞬时潮流平衡
2012 IEEE International Conference on Power System Technology (POWERCON) Pub Date : 2012-10-01 DOI: 10.1109/POWERCON.2012.6401429
R. Kazaoka, T. Hisakado, O. Wada
{"title":"Balancing of instantaneous power flow in local area power network with Tellegen's theorem","authors":"R. Kazaoka, T. Hisakado, O. Wada","doi":"10.1109/POWERCON.2012.6401429","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401429","url":null,"abstract":"It is important to manage precise power flows in closed small power networks for their reliable operations. This paper describes a method for managing the instantaneous power flows in a local area power network. In order to provide instantaneous power to a load through a power bus without disturbing the other modules, we adaptively adjust the power flow and keep the balance of the instantaneous power. As a tool of the balancing, we use power flows based on Tellegen's theorem and Kirchhoff's voltage law to determine the network states uniquely.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"216 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130296964","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
Wide-area coordinated control of large scale Energy Storage System 大型储能系统的广域协调控制
2012 IEEE International Conference on Power System Technology (POWERCON) Pub Date : 2012-10-01 DOI: 10.1109/POWERCON.2012.6401340
Q. Lu, Wei Hu, Y. Min, Wei-chun Ge, Zhi-ming Wang
{"title":"Wide-area coordinated control of large scale Energy Storage System","authors":"Q. Lu, Wei Hu, Y. Min, Wei-chun Ge, Zhi-ming Wang","doi":"10.1109/POWERCON.2012.6401340","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401340","url":null,"abstract":"With the rapid development of energy storage technology, applying the large-scale energy storage to increase the penetration of new energy with intermittent nature has been drawing worldwide attention. Among the field of energy storage applications, the management and control strategy research is the key technology, and also plays an important role in smart grid study. In this paper, the concept of Wide-area Coordinated Control of Energy Storage System (WCCESS) is proposed. In this system, the control of energy storage, regular equipment of power grid and intermittent energy supply have been integrated and coordinated with multi control targets in different time scale. The application pattern, control strategy and coordinated optimization method of energy storage have also been introduced at full length. WCCESS system is designed in hierarchical structure while combining global control and local control skillfully, consequently reduce optimization complexity and realize multi-target quasi-optimization. The presented system can markedly improve the energy utilization efficiency and access friendliness of intermittent generators, thus has great significance in promoting the development of energy storage and intermittent clean energy.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134521120","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: 5
Flexible power-flow algorithm for distribution power system with DER 带DER的配电系统的柔性潮流算法
2012 IEEE International Conference on Power System Technology (POWERCON) Pub Date : 2012-10-01 DOI: 10.1109/POWERCON.2012.6401333
Shaowei Huang, Ying Chen, Chen Shen, Chen-yun Sheng
{"title":"Flexible power-flow algorithm for distribution power system with DER","authors":"Shaowei Huang, Ying Chen, Chen Shen, Chen-yun Sheng","doi":"10.1109/POWERCON.2012.6401333","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401333","url":null,"abstract":"In this paper, a new power flow algorithm for distribution with DER is proposed, in which a flexible modeling method is adopted. The DERs and radial system are modeled as 3-sequence components and 3-phase component respectively. Then, using Jacobian-Free Newton-GMRES(m) method, a decomposition and coordination algorithm is forged to obtain the overall network power flow, The IEEE 13 bus system is used for case studies. By comparing with the time domain solution using the PSCAD/EMTD, the proposed algorithm is tested throughly, which validates its flexibility and accuracy.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132298788","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
Improvement of imbalance and FRT capacity in distribution voltage deteriorated by integration of renewable power generations by use of STATCOM technology 利用STATCOM技术整合可再生能源发电机组，改善配电电压恶化的不平衡和FRT能力
2012 IEEE International Conference on Power System Technology (POWERCON) Pub Date : 2012-10-01 DOI: 10.1109/POWERCON.2012.6401381
Guohong Wu, Kazutoshi Chubachi
{"title":"Improvement of imbalance and FRT capacity in distribution voltage deteriorated by integration of renewable power generations by use of STATCOM technology","authors":"Guohong Wu, Kazutoshi Chubachi","doi":"10.1109/POWERCON.2012.6401381","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401381","url":null,"abstract":"This paper presents a method to deal with the voltage problems that are caused by the increasing integration of renewable power generations into the distribution system. Some serious problems may occur to the distribution system in case with large amount of power penetration from the renewable sources, such as degradation in voltage quality (fluctuation, rise and imbalance), surplus power at light-load time and increased possibility of voltage instability. The object of this study aims at improving the voltage quality by mitigating the imbalance in the distribution voltage caused by unbalanced loads and further deteriorated by renewable power generations, and meanwhile, leading to the improvement of FRT (Fault Ride Through) capacity so as to ensure power system security at higher penetration levels. For this purpose, this paper suggests to introduce a STATCOM (Static Synchronous Compensator) device into a distribution system that has large numbers of renewable generators. In this study a STATCOM model with relatively lower cost and simple structure was completed based on the existing technologies, and the control systems for improving the imbalance in distribution voltage and for obtaining FRT capacity were proposed. Digital simulations were conducted using a typical detailed distribution system integrated by large numbers of photovoltaic power generators that is estimated probably to appear in the near future. The simulation results have illustrated the validity of the introduction of the proposed STATCOM.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133061124","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 Dynamic Voltage and reactive power control system based on Sixteen-Area Diagram control strategy 基于十六区图控制策略的动态电压无功控制系统研究
2012 IEEE International Conference on Power System Technology (POWERCON) Pub Date : 2012-10-01 DOI: 10.1109/POWERCON.2012.6401350
Peng Li, Jinming Xue, Yuwei Li, Chao Chen, J. Qian, Yongzhong Pan
{"title":"Research on Dynamic Voltage and reactive power control system based on Sixteen-Area Diagram control strategy","authors":"Peng Li, Jinming Xue, Yuwei Li, Chao Chen, J. Qian, Yongzhong Pan","doi":"10.1109/POWERCON.2012.6401350","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401350","url":null,"abstract":"For the defect of traditional voltage and reactive power control of substation based on “Nine-Area Diagram” control strategy, presence of transformer fitted with OLTC and capacitor banks switching frequently have certain impact on the voltage of distribution system. In addition, its range of adjustment is major and it can't realize surpassingly accurate adjustment for voltage and reactive power. Based on traditional voltage and reactive power control system(VQC)of substation and integrated with Static Var Generator (SVG) and Dynamic Voltage Restorer (DVR), this article propose dynamic voltage and reactive power control system (DVQC) based on “Sixteen-Area Diagram” control strategy.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115175563","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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