基于一致性算法的智能电网储能单元分布式调度策略
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摘要
针对太阳能和风能的不确定性对智能电网功率分配的影响,提出了一种基于一致性算法的智能电网储能单元分布式调度策略.该策略使用一致性算法来最大化充放电功率,并实时调整智能电网储能系统的输出功率来补偿实际功率与计划功率间的偏差,从而有效解决储能单元的内阻对充放电效率的影响.系统仿真测试结果表明,所提出的分布式调度策略能保证所有储能单元收敛到同一个最优值.
Aiming at the influence of uncertainty of solar energy and wind energy on the smart grid power allocation,a distributed scheduling strategy of smart grid energy storage units based on a consistency algorithm was proposed. The charge and discharge power were maximized with this consistency algorithm in the strategy,the output power of smart grid energy storage system was adjusted in real time to compensate for the deviation between actual and planned power,thus effectively inhibited the effect of internal resistance of energy storage units on the charge and discharge efficiency. The results of system simulation tests showthat the as-proposed distributed scheduling strategy can ensure that all energy storage units converge to the same optimal value.
Aiming at the influence of uncertainty of solar energy and wind energy on the smart grid power allocation,a distributed scheduling strategy of smart grid energy storage units based on a consistency algorithm was proposed. The charge and discharge power were maximized with this consistency algorithm in the strategy,the output power of smart grid energy storage system was adjusted in real time to compensate for the deviation between actual and planned power,thus effectively inhibited the effect of internal resistance of energy storage units on the charge and discharge efficiency. The results of system simulation tests showthat the as-proposed distributed scheduling strategy can ensure that all energy storage units converge to the same optimal value.
引文
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[10]王帅,赵克,安群涛,等.钻井直流微电网冲击功率的混合储能平衡技术[J].电机与控制学报,2017,21(4):53-61.(WANG Shuai,ZHAO Ke,AN Qun-tao,et al. Hybrid energy storage technology for drilling DC microgrid impact pow er[J]. Electric M achines and Control,2017,21(4):53-61.)
[11]杨毅,刘洁,于建成,等.分布式储能优化配置影响因素的评价方法研究[J].现代电子技术,2015,38(2):152-157.(YANG Yi,LIU Jie,YU Jian-cheng,et al. Evaluation method of distributed energy storage system in consideration of optimization configuration influence factors[J]. Modern Electronics Technique,2015,38(2):152-157.)
[12]吴杰,丁明.采用自适应小波包分解的混合储能平抑风电波动控制策略[J].电力系统自动化,2017,41(3):7-12.(WU Jie,DING Ming. Control strategy of hybrid energy storage to suppress w ind pow er fluctuation using adaptive w avelet packet decomposition[J]. Automation of Electric Pow er Systems,2017,41(3):7-12.)
[13]杨家豪.基于一致性算法的孤岛型微电网群实时协同功率分配[J].电力系统自动化,2017,41(5):8-15.(YANG Jia-hao. Real-time cooperative power allocation of islanding micro grid based on consistency algorithm[J]. Automation of Electric Pow er Systems,2017,41(5):8-15.)
[2]赵红毅,刘利坚.一种分布式系统进程调度方法研究[J].电子科技,2010,23(6):55-58.(ZHAO Hong-yi,LIU Li-jian. A process scheduling method for distributed systems[J]. Electronic Science and Technology,2010,23(6):55-58.)
[3] Guan Y,Meng L,Li C,et al. A dynamic consensus algorithm to adjust virtual impedance loops for discharge rate balancing of AC microgrid energy storage units[J]. IEEE Transactions on Smart Grid,2017(9):11-19.
[4] Kiaei I,Lotfifard S. Tube-based model predictive control of energy storage systems for enhancing transient stability of pow er systems[J]. IEEE Transactions on Smart Grid,2017(9):42-50.
[5]杜家兵,陈衍鹏,梁满发.基于分布式实时调度策略的智能电网控制系统的设计与实现[J].电子设计工程,2018,26(7):119-122.(DU Jia-bing,CHEN Yan-peng,LIANG Man-fa. Design and implementation of smart grid control system based on distributed real-time scheduling strategy[J]. Electronic Design Engineering,2018,26(7):119-122.)
[6]米阳,吴彦伟,纪宏澎,等.基于多组储能动态调节的独立直流微电网协调控制[J].电力自动化设备,2017,37(5):170-176.(MI Yang,WU Yan-wei,JI Hong-peng,et al. Coordinated control of independent DC microgrid based on multi group energy storage dynamic regulation[J].Pow er Automation Equipment,2017,37(5):170-176.)
[7]吴晓刚,侯维祥,帅志斌,等.电动汽车复合储能系统的功率分配优化研究[J].电机与控制学报,2017,21(11):114-124.(WU Xiao-gang,HOU Wei-xiang,SHUAI Zhi-bin,et al. Pow er distribution optimization of electric vehicle hybrid energy storage system[J]. Electric M achines and Control,2017,21(11):114-124.)
[8]雷为民,苗友忠,罗玮,等.电网电压不平衡情况下双馈风力发电变流器控制[J].沈阳工业大学学报,2017,39(6):612-616.(LEI Wei-min,MIAO You-zhong,LUO Wei,et al.Control of doubly-fed w ind pow er generation converter under unbalanced grid voltage[J]. Journal of Shenyang University of Technology,2017,39(6):612-616.)
[9]从旭光,任永峰,胡志帅,等.基于两级全钒液流电池的风电储能系统的功率优化分配控制[J].水电能源科学,2017(7):210-214.(CONG Xu-guang,REN Yong-feng,HU Zhi-shuai,et al. Storage of w ind pow er system optimal pow er allocation control based on tw o of all vanadium flow battery[J]. Water Resources and Pow er,2017(7):210-214.)
[10]王帅,赵克,安群涛,等.钻井直流微电网冲击功率的混合储能平衡技术[J].电机与控制学报,2017,21(4):53-61.(WANG Shuai,ZHAO Ke,AN Qun-tao,et al. Hybrid energy storage technology for drilling DC microgrid impact pow er[J]. Electric M achines and Control,2017,21(4):53-61.)
[11]杨毅,刘洁,于建成,等.分布式储能优化配置影响因素的评价方法研究[J].现代电子技术,2015,38(2):152-157.(YANG Yi,LIU Jie,YU Jian-cheng,et al. Evaluation method of distributed energy storage system in consideration of optimization configuration influence factors[J]. Modern Electronics Technique,2015,38(2):152-157.)
[12]吴杰,丁明.采用自适应小波包分解的混合储能平抑风电波动控制策略[J].电力系统自动化,2017,41(3):7-12.(WU Jie,DING Ming. Control strategy of hybrid energy storage to suppress w ind pow er fluctuation using adaptive w avelet packet decomposition[J]. Automation of Electric Pow er Systems,2017,41(3):7-12.)
[13]杨家豪.基于一致性算法的孤岛型微电网群实时协同功率分配[J].电力系统自动化,2017,41(5):8-15.(YANG Jia-hao. Real-time cooperative power allocation of islanding micro grid based on consistency algorithm[J]. Automation of Electric Pow er Systems,2017,41(5):8-15.)