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计及风电场和储能系统联合运行的输电系统扩展规划
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储能系统可以为电力系统提供调频和备用等辅助服务,与风电场联合运行时还可以平抑风电功率波动,改善系统运行的安全性和经济性。风电场和储能系统(简称风储系统)联合运行已成为一种受推崇的运行模式。因此,在未来的输电系统规划中就需要适当考虑风储系统的联合运行,这正是文中旨在解决的中心问题。首先,以钠硫储能系统为例,分析了储能系统成本与可放电次数的关系;在此基础上,提出了风储系统联合运行策略,在降低储能系统成本和平抑风电功率波动之间进行合理折中。之后,建立了考虑风储系统联合运行的输电系统两层规划模型,综合考虑了输电投

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国家高技术研究发展计划(863计划)

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Transmission System Expansion Planning Considering Combined Operation of Wind Farms and Energy Storage Systems
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An energy storage system(ESS)can provide ancillary services such as frequency regulation and reserves,as well as smooth the fluctuations of wind power outputs,and hence improve the security and economics of the power system concerned.The combined operation of a wind farm and an ESS has become a widely accepted operating mode.Hence,it appears necessary to consider this operating mode in transmission system expansion planning,and this is an issue to be systematically addressed in this work.Firstly,the relationship between the cost of the NaS based ESS and its discharging cycle life is analyzed.A strategy for the combined operation of a wind farm and an ESS is next presented,so as to have a good compromise between the operating cost of the ESS and the smoothing effect of the fluctuation of wind power outputs.Then,a transmission system expansion planning model is developed with the sum of the transmission investment costs,the investment and operating costs of ESSs and the punishment cost of lost wind energy as the objective function to be minimized.An improved particle swarm optimization algorithm is employed to solve the developed planning model.Finally,the essential features of the developed model and adopted algorithm are demonstrated by18-bus and46-bus test systems.

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引用本文
[1]郑静 ,文福拴 ,李力 ,等.计及风电场和储能系统联合运行的输电系统扩展规划[J].电力系统自动化,2013,37(1):135-142. DOI:10.7500/AEPS201206068.
ZHENG Jing, WEN Fushuan, LI Li, et al. Transmission System Expansion Planning Considering Combined Operation of Wind Farms and Energy Storage Systems[J]. Automation of Electric Power Systems, 2013, 37(1):135-142. DOI:10.7500/AEPS201206068.
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  • 收稿日期:2012-06-08
  • 最后修改日期:2012-12-08
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  • 在线发布日期: 2013-01-06
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