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Power system planning with high renewable energy penetration considering demand response 被引量:4
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作者 Peng Wang Ershun Du +2 位作者 Ning Zhang Xinzhi Xu Yi Gao 《Global Energy Interconnection》 CAS CSCD 2021年第1期69-80,共12页
Electric system planning with high variable renewable energy(VRE)penetration levels has attracted great attention world-wide.Electricity production of VRE highly depends on the weather conditions and thus involves lar... Electric system planning with high variable renewable energy(VRE)penetration levels has attracted great attention world-wide.Electricity production of VRE highly depends on the weather conditions and thus involves large variability,uncertainty,and low-capacity credit.This gives rise to significant challenges for power system planning.Currently,many solutions are proposed to address the issue of operational flexibility inadequacy,including flexibility retrofit of thermal units,inter-regional transmission,electricity energy storage,and demand response(DR).Evidently,the performance and the cost of various solutions are different.It is relevant to explore the optimal portfolio to satisfy the flexibility requirement for a renewable dominated system and the role of each flexibility source.In this study,the value of diverse DR flexibilities was examined and a stochastic investment planning model considering DR is proposed.Two types of DRs,namely interrupted DR and transferred DR,were modeled.Chronological load and renewable generation curves with 8760 hours within a whole year were reduced to 4 weekly scenarios to accelerate the optimization.Clustered unit commitment constraints for accommodating variability of renewables were incorporated.Case studies based on IEEE RTS-96 system are reported to demonstrate the effectiveness of the proposed method and the DR potential to avoid energy storage investment. 展开更多
关键词 Demand response High renewable penetration Operational flexibility power system planning
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Security value based expansion planning of power system with integration of large-scale wind power 被引量:11
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作者 YU YIXin WANG JingRan LV XiaoYang 《Science China(Technological Sciences)》 SCIE EI CAS 2012年第7期1908-1922,共15页
Concerning the integration of large-scale wind power,an integrated model of generation and transmission expansion planning is proposed based on the assessment of the value of steady state and dynamic security.In the a... Concerning the integration of large-scale wind power,an integrated model of generation and transmission expansion planning is proposed based on the assessment of the value of steady state and dynamic security.In the assessment of security value,the unit commitment simulation based on the predicted hourly load and wind power output data in the planning horizon is used to evaluate the costs of preventive control,emergency control and social losses due to the uncertainty of load and wind power.The cost of preventive control consists of the fuel cost of power generation,the environmental cost and the load shedding cost.This not only provides a systematic method of security assessment of power system expansion planning schemes,but also broadens the perspective of power system planning from the technology and economic assessment to the measure of the whole social value.In the assessment process,the preventive control and emergency control of cascading failures are also presented,which provides a convincing tool for cascading failure analysis of planning schemes and makes the security assessment more comprehensive and reasonable.The proposed model and method have been demonstrated by the assessment of two power system planning schemes on the New England 10-genarator 39-bus System.The importance of considering the value of security and simulating hourly system operation for the planning horizon,in expansion planning of power system with integration of large-scale wind power,has been confirmed. 展开更多
关键词 power system planning generation expansion planning transmission expansion planning value of security preventive control and emergency control wind power
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A low-carbon oriented probabilistic approach for transmission expansion planning 被引量:9
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作者 Jing QIU Zhaoyang DONG +4 位作者 Junhua ZHAO Ke MENG Fengji LUO Kit Po WONG Chao LU 《Journal of Modern Power Systems and Clean Energy》 SCIE EI 2015年第1期14-23,共10页
Following the deregulation of the power industry,transmission expansion planning(TEP)has become more complicated due to the presence of uncertainties and conflicting objectives in a market environment.Also,the growing... Following the deregulation of the power industry,transmission expansion planning(TEP)has become more complicated due to the presence of uncertainties and conflicting objectives in a market environment.Also,the growing concern on global warming highlights the importance of considering carbon pricing policies during TEP.In this paper,a probabilistic TEP approach is proposed with the integration of a chance constrained load curtailment index.The formulated dynamic programming problem is solved by a hybrid solution algorithm in an iterative process.The performance of our approach is demonstrated by case studies on a modified IEEE 14-bus system.Simulation results prove that our approach can provide network planners with comprehensive information regarding effects of uncertainties on TEP schemes,allowing them to adjust planning strategies based on their risk aversion levels or financial constraints. 展开更多
关键词 power system planning Emission reduction Dynamic programming Risk management
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Optimal Feeder Routing in Urban Distribution Networks Planning with Layout Constraints and Losses 被引量:1
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作者 Alessandro Bosisio Alberto Berizzi +2 位作者 Edoardo Amaldi Cristian Bovo Xu Andy Sun 《Journal of Modern Power Systems and Clean Energy》 SCIE EI CSCD 2020年第5期1005-1014,共10页
We address the problem of optimally re-routing the feeders of urban distribution network in Milano,Italy,which presents some peculiarities and significant design challenges.Milano has two separate medium-voltage(MV)di... We address the problem of optimally re-routing the feeders of urban distribution network in Milano,Italy,which presents some peculiarities and significant design challenges.Milano has two separate medium-voltage(MV)distribution networks,previously operated by two different utilities,which grew up independently and incoordinately.This results in a system layout which is inefficient,redundant,and difficult to manage due to different operating procedures.The current utility UNARETI,which is in charge of the overall distribution system,aims at optimally integrating the two MV distribution networks and moving to a new specific layout that offers advantages from the perspectives of reliability and flexibility.We present a mixed-integer programming(MIP)approach for the design of a new network configuration satisfying the so-called 2-step ladder layout required by the planner.The model accounts for the main electrical constraints such as power flow equations,thermal limits of high-voltage(HV)/MV substation transformers,line thermal limits,and the maximum number of customers per feeder.Real power losses are taken into account via a quadratic formulation and a piecewise linear approximation.Computational tests on a small-scale system and on a part of the Milano distribution network are reported. 展开更多
关键词 Mixed-integer programming(MIP) graph theory power system planning urban distribution network feeder routing optimization
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HVDC Macrogrid Modeling for Power-flow and Transient Stability Studies in North American Continental-level Interconnections 被引量:1
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作者 Marcelo A.Elizondo Nihal Mohan +12 位作者 James O’Brien Qiuhua Huang David Orser Warren Hess Hilary Brown Wenchun Zhu Divya Chandrashekhara Yuri V.Makarov Dale Osborn James Feltes Harold Kirkham David Duebner Zhenyu Huang 《CSEE Journal of Power and Energy Systems》 SCIE 2017年第4期390-398,共9页
voltage direct current(HVDC)transmission lines are being constructed throughout the world,aided by advancements in power electronics and the potential value to transfer power between distant areas and off-shore locati... voltage direct current(HVDC)transmission lines are being constructed throughout the world,aided by advancements in power electronics and the potential value to transfer power between distant areas and off-shore locations.Multiple HVDC lines within and across large AC interconnections could bring about economic benefits such as interregional capacity exchange and transfer of low-cost,distant electric energy directly to load centers.In addition,network configuration of HVDC lines could result in additional benefits that have not been deeply studied.This paper describes the modeling process for continentallevel power system interconnections with the addition of multiple HVDC lines configured as a macrogrid.The models used for study are based on industry-accepted power-flow and dynamic system models for the North American Eastern and Western Interconnections.The model provides insight on feasibility and initial steady-state and stability tests of the HVDC macrogrid and its interactions with the existing electricity infrastructure,opening the door to analysis of the technical value of such a macrogrid. 展开更多
关键词 HVDC models HVDC transmission modeling power-FLOW power system dynamic stability power system planning
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Estimating life-cycle energy payback ratio of overhead transmission line toward low carbon development 被引量:5
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作者 Xiaoming DONG Chongqing KANG +4 位作者 Ning ZHANG Huaguang YAN Junxia MENG Xinsheng NIU Xin TIAN 《Journal of Modern Power Systems and Clean Energy》 SCIE EI 2015年第1期123-130,共8页
The energy conservation plays an important role for low carbon development.In order to evaluate the energy conservation in the full life-cycle,a scheme to estimate the energy consumption,or alternatively the energy pa... The energy conservation plays an important role for low carbon development.In order to evaluate the energy conservation in the full life-cycle,a scheme to estimate the energy consumption,or alternatively the energy pay,in constructing an overhead transmission line is proposed in this paper.The analysis of a typical projection is given for demonstration.With new additional overhead transmission lines,the energy consumption,known as the power loss in power network,is expected to be decline,which is defined in this paper as the energy payback.In order to estimate this kind of contribution,the scheme that consisted of load forecast,production simulation for generating systems,load flow simulation and power loss calculation has been proposed.Case studies,based on the IEEE 24-bus test system,are given to demonstrate the efficacy of the schemes.Moreover,several presumptive scenarios are deployed and analysed with the presented schemes for comparison. 展开更多
关键词 power system operation power system planning power system simulation power transmission Life cycle analysis
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