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Multi-time Scale Scheduling of Integrated Electricity and Natural Gas System Considering the Dynamic Flow of Natural Gas 考虑天然气动态流动的电、气一体化系统多时间尺度调度
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2018-05-22 DOI: 10.1109/ISGT-ASIA.2018.8467773
Weitong Zhang, Jian Chen, Jiaqi Li, Yicheng Zhang
{"title":"Multi-time Scale Scheduling of Integrated Electricity and Natural Gas System Considering the Dynamic Flow of Natural Gas","authors":"Weitong Zhang, Jian Chen, Jiaqi Li, Yicheng Zhang","doi":"10.1109/ISGT-ASIA.2018.8467773","DOIUrl":"https://doi.org/10.1109/ISGT-ASIA.2018.8467773","url":null,"abstract":"With the large-scale access of micro-turbines (MT) in the power system, the impact of electricity and natural gas system are pronounced. Therefore, the joint optimization of integrated electricity and natural gas (IENG) system is paid more attention. In this paper, the detail model of IENG is established, and the dynamic characteristics of natural gas flow is analyzed in hour-scale and minute-scale. A multi-time scale scheduling framework is proposed for IENG at a distribution level. In the day-ahead layer, the costs of system are minimized to ensure the economy of scheme. In the real-time layer, the fluctuation of power in point of common coupling (PCC) is minimized to alleviate the impact on main grid which caused by uncertainty of distributed generation (DG) and load. Finally, the case study verifies the validity of the proposed model.","PeriodicalId":126140,"journal":{"name":"2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122529471","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
Q-learning and Dynamic Fuzzy Q-learning Based Intelligent Controllers for Wind Energy Conversion Systems 基于q学习和动态模糊q学习的风能转换系统智能控制器
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2018-05-22 DOI: 10.1109/ISGT-ASIA.2018.8467927
Lv Zhou, A. Swain, A. Ukil
{"title":"Q-learning and Dynamic Fuzzy Q-learning Based Intelligent Controllers for Wind Energy Conversion Systems","authors":"Lv Zhou, A. Swain, A. Ukil","doi":"10.1109/ISGT-ASIA.2018.8467927","DOIUrl":"https://doi.org/10.1109/ISGT-ASIA.2018.8467927","url":null,"abstract":"This paper investigates the performance of two different intelligent controllers for rotor side converter of doubly-fed induction generator (DFIG) used in wind energy conversion systems. The design of these controllers are based on the concept of Q-learning and dynamic fuzzy Q-learning (DFQL). The Q-learning based controller essentially provides discrete control actions unlike DFQL based controller which generates continuous control actions. However, the learning time in DFQL based controller is significantly more compared to the conventional Q-learning. The effectiveness of these controllers are studied considering a test wind energy conversion system consisting of 20 wind turbines which are driven by 20 DFIGs. The results of the simulation illustrate that Q-learning based intelligent controller performs better compared to DFQL controller.","PeriodicalId":126140,"journal":{"name":"2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126505469","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: 14
Data Markets for Smart Grids: An Introduction 智能电网的数据市场:导论
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2018-05-22 DOI: 10.1109/ISGT-ASIA.2018.8467818
A. Radhakrishnan, Sarasij Das
{"title":"Data Markets for Smart Grids: An Introduction","authors":"A. Radhakrishnan, Sarasij Das","doi":"10.1109/ISGT-ASIA.2018.8467818","DOIUrl":"https://doi.org/10.1109/ISGT-ASIA.2018.8467818","url":null,"abstract":"Conventional power grids are being transformed into smart grids with the help of computer technologies. This has led to the generation of huge amount of data. Management of enormous amount of smart grid data poses significant challenge to the data owners. Currently, there are not much incentives available to encourage better data management among data owners. Generated smart grid data mostly stay with the owner of the data. Lack of a proper data exchange platform often prohibits the flow of data across various entities of smart grids. Exchange of data is necessary for efficient utilization of smart grid data. To address these issues, this paper proposes data markets for smart grids. The advantages of Smart Grid Data Market (SGDM) are outlined in this paper. Smart grid data and related services are the tradable commodities in the SGDMs. A market model is proposed for SGDM. Market structure, participants, commodities, attributes of data pricing, data licensing, data authenticity and other aspects of the proposed SGDMs are discussed.","PeriodicalId":126140,"journal":{"name":"2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"52 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131747298","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
Energy Efficiency in Variable Speed Centrifugal Chiller Systems Driven by Synchronous Reluctance Motors 同步磁阻电机驱动的变速离心式冷水机组的能源效率
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2018-05-22 DOI: 10.1109/ISGT-ASIA.2018.8467811
F. Oliveira, A. Ukil
{"title":"Energy Efficiency in Variable Speed Centrifugal Chiller Systems Driven by Synchronous Reluctance Motors","authors":"F. Oliveira, A. Ukil","doi":"10.1109/ISGT-ASIA.2018.8467811","DOIUrl":"https://doi.org/10.1109/ISGT-ASIA.2018.8467811","url":null,"abstract":"Centrifugal chiller systems are used to provide cooling energy to large buildings, consuming big amounts of electricity. The electricity is consumed by the electric motors that run the compressors, pumps, and fans scattered through the chiller systems. Using all-variable speed chillers has been pointed as a strategy to reduce the energy demanded by the chillers. However, the efficiency of the electric motors tends to decrease with the speed reduction, making them a source of losses when adopting the speed control. In this paper, an all-variable speed centrifugal chiller model is developed in SimulationX, as well as synchronous reluctance motors (SynRM) and high-efficiency induction motors models, and simulations focused on the energy performance are implemented. The energy performance of both types of motors when running variable speed centrifugal chillers are compared and the quantitative results of the energy efficiency when using SynRM in chiller systems are provided.","PeriodicalId":126140,"journal":{"name":"2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131872770","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
Adaptive Rescheduling of Energy Consumption Based on User Preferences for the Future Smart Grid 基于用户偏好的未来智能电网能耗自适应重调度
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2018-05-22 DOI: 10.1109/ISGT-ASIA.2018.8467718
P. Charoen, S. Javaid, Yuto Lim, Yasuo Tan, C. Charoenlarpnopparut
{"title":"Adaptive Rescheduling of Energy Consumption Based on User Preferences for the Future Smart Grid","authors":"P. Charoen, S. Javaid, Yuto Lim, Yasuo Tan, C. Charoenlarpnopparut","doi":"10.1109/ISGT-ASIA.2018.8467718","DOIUrl":"https://doi.org/10.1109/ISGT-ASIA.2018.8467718","url":null,"abstract":"In the future smart grid, Demand Side Management (DSM) will be implemented to facilitate utility companies and consumers in order to achieve mutual benefits such as minimizing total energy cost and reducing consumption peaks. The optimal energy consumption scheduling is calculated based on user preferences in advance, e.g., day-ahead schedules. Most of the prior works in the literature have reported good results under the assumption that users are committed to the optimal schedules and do not deviate from their preferences, which may not be true in practice. In this paper, we consider the implications of allowing users to change their preferences and request new schedules at any time. We propose single-user and multi-user adaptive rescheduling algorithms which address these changes in user preferences. The algorithms reschedule deviating energy consumption optimally thus reducing the total energy cost. Simulation results show that the total energy cost of the community can be reduced by as much as 11.4% in specific scenarios.","PeriodicalId":126140,"journal":{"name":"2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133245629","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
Improving the Accuracy of Second-Order Cone AC Optimal Power Flow by Convex Approximations 用凸逼近提高二阶锥型交流最优潮流的精度
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2018-05-22 DOI: 10.1109/ISGT-ASIA.2018.8467928
Zhao Yuan, M. Hesamzadeh
{"title":"Improving the Accuracy of Second-Order Cone AC Optimal Power Flow by Convex Approximations","authors":"Zhao Yuan, M. Hesamzadeh","doi":"10.1109/ISGT-ASIA.2018.8467928","DOIUrl":"https://doi.org/10.1109/ISGT-ASIA.2018.8467928","url":null,"abstract":"We propose three convex approximation methods to improve the performance of second-order cone AC optimal power flow (SOC-ACOPF) model. These methods are formulated in the proposed SOC-ACOPF models, correspondingly, ConicLA, ConicRe, and ConicTA. The principle is to drop the original assumptions of the SOC-ACOPF model by using improved approximation methods. The nonconvex constraints in ACOPF are expressed by using quadratic equivalence. These quadratic constraints are then approximated in two different ways: ConicLA uses controllable tangent lines as linear approximations; ConicRe uses rotated cones. Furthermore, the assumption of small voltage phase angle difference (along each line) which is used in many power flow models is dropped in the ConicTA model. ConicTA approximates sinusoidal function by its expanded Taylor series and then re-applies approximation methods developed in ConicLA and ConicRe. The advantages of our approximation methods are that the proposed SOC-ACOPF models are convex and more accurate. Using Power System Analysis Toolbox (PSAT) as the benchmark, numerical results from various IEEE test cases show that our models outperform the original SOC-ACOPF model prominently especially for power distribution networks.","PeriodicalId":126140,"journal":{"name":"2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133609895","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
Charging Demonstrator for Ancillary Service Provision in Smart Grids 智能电网辅助服务收费示范
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2018-05-22 DOI: 10.1109/ISGT-ASIA.2018.8467795
Kai Zhang, Dante Recalde, Tobias Massier, T. Hamacher
{"title":"Charging Demonstrator for Ancillary Service Provision in Smart Grids","authors":"Kai Zhang, Dante Recalde, Tobias Massier, T. Hamacher","doi":"10.1109/ISGT-ASIA.2018.8467795","DOIUrl":"https://doi.org/10.1109/ISGT-ASIA.2018.8467795","url":null,"abstract":"The target of this paper is to provide a charging infrastructure design for a carpark scenario which enables demand response (DR) management. The presented system not only allows an optimal charging scheduling to maximize the revenue for the carpark operator, but also enables the participation in DR. Numerous advantages to deploy a smart power sharing charging infrastructure in the future carparks have been discussed in the literature. A smart charging scheduling strategy leads to a better usage of grid power and improves the grid stability. Moreover it benefits the users to charge their own electric vehicle (EV) with lower cost and generates additional revenues for carpark operators. The utilization efficiency of the charging station will also be improved in the meantime.","PeriodicalId":126140,"journal":{"name":"2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130984106","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 Noise-Tolerant Temporal-Adaptive Approach for Short-Term Voltage Stability Assessment of Power Systems 电力系统短期电压稳定性评估的容噪时间自适应方法
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2018-05-22 DOI: 10.1109/ISGT-ASIA.2018.8467941
Yuchen Zhang, Z. Dong, Rui Zhang, Yan Xu
{"title":"A Noise-Tolerant Temporal-Adaptive Approach for Short-Term Voltage Stability Assessment of Power Systems","authors":"Yuchen Zhang, Z. Dong, Rui Zhang, Yan Xu","doi":"10.1109/ISGT-ASIA.2018.8467941","DOIUrl":"https://doi.org/10.1109/ISGT-ASIA.2018.8467941","url":null,"abstract":"Short-term voltage stability (STVS) problem has become more prominent in today’s power systems, and the deployment of phasor measurement units (PMU) opens the way for real-time STVS assessment. The existing approaches for real-time STVS assessment suffer from long observation windows and lack mitigation to the impact of PMU measurement noise. Considering those inadequacies, this paper proposes a noise-tolerant temporal-adaptive STVS assessment approach with the following salient features: 1) the adoption of probabilistic classification enables the early unstable event detection ability, which significantly improves the assessment speed; 2) the probabilistic classifier consists of noisy-tolerant ensemble models that are able to learn the impact of measurement noise, which improves the assessment robustness against measurement noise. The proposed approach is tested on New England 39-bus system, and its fast assessment speed and excellent robustness against measurement noise are verified by comparative studies with existing approaches.","PeriodicalId":126140,"journal":{"name":"2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114604029","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 Review of Operation Methods and Simulation Requirements for Future Smart Distribution Grids 未来智能配电网运行方式与仿真要求综述
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2018-05-22 DOI: 10.1109/ISGT-ASIA.2018.8467850
Dante Recalde, Andrej Trpovski, Sebastian Troitzsch, Kai Zhang, Sarmad Hanif, T. Hamacher
{"title":"A Review of Operation Methods and Simulation Requirements for Future Smart Distribution Grids","authors":"Dante Recalde, Andrej Trpovski, Sebastian Troitzsch, Kai Zhang, Sarmad Hanif, T. Hamacher","doi":"10.1109/ISGT-ASIA.2018.8467850","DOIUrl":"https://doi.org/10.1109/ISGT-ASIA.2018.8467850","url":null,"abstract":"The increasing penetration of active elements at lower voltage levels introduces new challenges for efficient and reliable operation of distribution grids. Reverse power flow and the addition of interconnections between feeders not only make relay coordination harder, it requires development and testing of new control algorithms to ensure voltages are kept withing safe operating limits. Simulation tools that provide a good compromise between detail and computational complexity are necessary. This paper summarizes the requirements and characteristics for operating and simulating future smart distribution grids. Special focus is put on existing simulation tools that allow testing of complex algorithms involving a combination of energy sources and loads, i.e., distributed generation (DG), flexible load (FL) and energy storage. Finally, the importance of co-simulation of power and communications systems is discussed.","PeriodicalId":126140,"journal":{"name":"2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116200271","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
Uniform Control Scheme for the Interlinking Converter Enhancing the Economy and Resilience of Hybrid AC/DC Microgrids 提高交直流混合微电网经济性和弹性的并联变流器统一控制方案
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Pub Date : 2018-05-22 DOI: 10.1109/ISGT-ASIA.2018.8467894
Chi Jin, C. Dong, Junjun Wang, Peng Wang
{"title":"Uniform Control Scheme for the Interlinking Converter Enhancing the Economy and Resilience of Hybrid AC/DC Microgrids","authors":"Chi Jin, C. Dong, Junjun Wang, Peng Wang","doi":"10.1109/ISGT-ASIA.2018.8467894","DOIUrl":"https://doi.org/10.1109/ISGT-ASIA.2018.8467894","url":null,"abstract":"To enhance the economic efficiency and resilience of hybrid ac/dc microgrids, this work designs a uniform control scheme for the bidirectional interlinking converter (BIC) who serves as a crucial role coupling the ac/dc subgrids. The proposed technique integrates the economical and resilient objectives of hybrid ac/dc microgrid in one control scheme. Based on the incremental-cost-droop decentralized on each distributed generator (DG), the uniform control scheme utilizes the BIC equalizing the normalized ac frequency and dc voltage. Coordinated sub-grids through the BIC, the system cost is minimized with the same incremental costs for all DGs. Besides saving the system cost, the BIC is managed to enhance the system resilience by supporting the subgrid voltages once the voltage source fails. With the bidirectional ac droop strategy, the designed control scheme is implemented without the communication and the mode switches. In a hybrid ac/dc microgrid, the proposed uniform control scheme is vindicated through various operation scenarios.","PeriodicalId":126140,"journal":{"name":"2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124096327","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
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