主动配电网下多微电网间功率协调优化研究
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摘要
配电网中高渗透率分布式电源以多微电网的形式集群接入,为对多个微电网进行有效管理,达到对分布式电源主动控制的目的,提出了一种基于部分可观测马尔科夫决策过程(DEC-POMDP)的协调优化模型。针对双层优化目标函数,基于拉格朗日-对偶原理对其进行分层处理,为了对双层目标函数彻底解耦,引入拉格朗日乘子;采用了一种基于Bloch球面坐标编码的量子遗传算法,对变量进行编码以提高优化算法寻优性能。最后,通过算例计算分析验证了所提方法的正确性与有效性。
With the increasing of distributed generation penetration in distribution system,multiple micro-grids may coexist in a regional distribution system and the coordinated control and energy mutual transmission between each micro-grid began to cause widespread concern.This paper proposed a multi micro-grids power optimal method.The optimal control problem of micro-grids is modeled as a decentralized partially-observable Markov decision process(DEC-POMDP),and a coordinated dynamic programming algorithm is used to solve the problem by introducing a look-head dual multiplier mechanism as decentralized control signals from centralized information.Finally,the simulation example of multimicro-grids verifies the correctness and effectiveness of the proposed method.
With the increasing of distributed generation penetration in distribution system,multiple micro-grids may coexist in a regional distribution system and the coordinated control and energy mutual transmission between each micro-grid began to cause widespread concern.This paper proposed a multi micro-grids power optimal method.The optimal control problem of micro-grids is modeled as a decentralized partially-observable Markov decision process(DEC-POMDP),and a coordinated dynamic programming algorithm is used to solve the problem by introducing a look-head dual multiplier mechanism as decentralized control signals from centralized information.Finally,the simulation example of multimicro-grids verifies the correctness and effectiveness of the proposed method.
引文
[1]PAVAN KUMAR Y V,BHIMASINGU R.Renewable energy based microgrid system sizing and energy management for greenbuildings[J].Journal of Modern Power System and Clean Energy,2015,3(1):1-13.
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[3]LI Y W,NEJABATKHAH F.Overview of control,integration and energy management of microgrids[J].Journal of Modern Power System and Clean Energy,2014,2(3):212-222.
[4]熊雄.微网群混合协调控制及其有功功率优化研究[D].北京:中国农业大学,2017.
[5]ZHANG Y,GATSIS N,GIANNAKIS G B.Robust energy management for microgrids with highpenetration renewable[J].IEEE Transactions on Sustainable Energies,2013,4(4):944-953.
[6]FARZIN H,FOTUHI-FIRUZABAD M,AGHTAIE M.Developing a hierarchical scheme for outage management in multi-microgrids[C]∥2015 IEEE Eindhoven,Power Tech,2015:1-6.
[7]LASSETER R H.Smart distribution:Coupled microgrids[J].Proc.IEEE.2011,99(6):1074-1082.
[8]MAKNOUNINEJAD A,QU Z H,ENSLIN J,et al.Clustering and cooperative control of distributed generators for maintaining microgrid unified voltage profile and complex power control[C]∥Transmission and Distribution Conference and Exposition(T&D),2012 IEEE PES,2012:1-8.
[9]MADUREIRA A G,PECAS-LOPES J A.Coordinated voltage support in distribution networks with distributed generation and microgrids[J].Renewable Power Generation,IET,2009,3(4):439-454.
[10]支娜,肖曦,田培根,等.微网群控制技术研究现状与展望[J].电力自动化设备,2016,36(4):107-115.
[11]BERNSTEIN D S,GIVAN R,IMMERMAN N,et al.The complexity of decentralized control of Marcov decision processes[J].Math Oper.Res.,2002,27(4):819-840.
[12]杨俊安,庄镇泉.量子遗传算法研究现状[J].计算机科学,2003,30(11):13-15.
[13]张京钏,江涛.改进的自适应遗传算法[J].计算机工程与应用,2010,48(11):53-55.
[2]HATZIARGY N,ASAND H,IRAVAN I,et al.Microgrids[J].IEEE Power and Energy Magazine,2007,5(4):78-94.
[3]LI Y W,NEJABATKHAH F.Overview of control,integration and energy management of microgrids[J].Journal of Modern Power System and Clean Energy,2014,2(3):212-222.
[4]熊雄.微网群混合协调控制及其有功功率优化研究[D].北京:中国农业大学,2017.
[5]ZHANG Y,GATSIS N,GIANNAKIS G B.Robust energy management for microgrids with highpenetration renewable[J].IEEE Transactions on Sustainable Energies,2013,4(4):944-953.
[6]FARZIN H,FOTUHI-FIRUZABAD M,AGHTAIE M.Developing a hierarchical scheme for outage management in multi-microgrids[C]∥2015 IEEE Eindhoven,Power Tech,2015:1-6.
[7]LASSETER R H.Smart distribution:Coupled microgrids[J].Proc.IEEE.2011,99(6):1074-1082.
[8]MAKNOUNINEJAD A,QU Z H,ENSLIN J,et al.Clustering and cooperative control of distributed generators for maintaining microgrid unified voltage profile and complex power control[C]∥Transmission and Distribution Conference and Exposition(T&D),2012 IEEE PES,2012:1-8.
[9]MADUREIRA A G,PECAS-LOPES J A.Coordinated voltage support in distribution networks with distributed generation and microgrids[J].Renewable Power Generation,IET,2009,3(4):439-454.
[10]支娜,肖曦,田培根,等.微网群控制技术研究现状与展望[J].电力自动化设备,2016,36(4):107-115.
[11]BERNSTEIN D S,GIVAN R,IMMERMAN N,et al.The complexity of decentralized control of Marcov decision processes[J].Math Oper.Res.,2002,27(4):819-840.
[12]杨俊安,庄镇泉.量子遗传算法研究现状[J].计算机科学,2003,30(11):13-15.
[13]张京钏,江涛.改进的自适应遗传算法[J].计算机工程与应用,2010,48(11):53-55.