直流微网群联络线功率波动平抑策略研究
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摘要
文章提出了基于"独立平抑-联合修正"的双阶段直流微网群功率平抑控制策略。在子微网独立平抑阶段,各子微网中净负荷功率波动较小,混合储能仅针对其所在的子微网净负荷进行功率平抑。在子微网联合修正阶段,微网群中净负荷功率波动较大,以平抑直流微网群与交流配电网之间的功率为优化目标,采用粒子群算法,修正子微网内混合储能的功率指令。仿真分析表明,文章提出的控制策略能取得很好地交换功率平抑效果。
This article proposed an "Independent stabilizing gathered improving" based double stages dc microgrid clusters power stabilization control strategy:at the independent stabilizing stage,the power fluctuate of each microgrid is smooth,at this stage,the dc microgird stabilizes the power fluctuate by itself with its own HESS;at the gathered improving stage,the power fluctuate of microgrid clusters is rough,this stage is aimed to stabilize the power fluctuate between the dc microgrid clusters and the ac power grid,the PSO algorithm is used to modify the control instruction of the HESS at each microgrid. Simulation analysis has proved the control method that proposed in this article can make the result of power stabilization between the dc microgrid clusters and the ac power grid better.
This article proposed an "Independent stabilizing gathered improving" based double stages dc microgrid clusters power stabilization control strategy:at the independent stabilizing stage,the power fluctuate of each microgrid is smooth,at this stage,the dc microgird stabilizes the power fluctuate by itself with its own HESS;at the gathered improving stage,the power fluctuate of microgrid clusters is rough,this stage is aimed to stabilize the power fluctuate between the dc microgrid clusters and the ac power grid,the PSO algorithm is used to modify the control instruction of the HESS at each microgrid. Simulation analysis has proved the control method that proposed in this article can make the result of power stabilization between the dc microgrid clusters and the ac power grid better.
引文
[1] Qobad Shafiee,Tomislav Dragicevic,Juan C Vasquez,et al. Modeling stability analysis and active stabilization of multiple DC-microgrid clusters[A]. Energy Conference[C].Dubrovnik:IEEE,2014.1284-1290.
[2]张宋杰.双极性直流微电网混合储能系统控制策略研究及实现[D].太原:太原理工大学,2017.
[3]廖毅.风光储联合发电系统输出功率特性和控制策略的研究[D].北京:华北电力大学,2012.
[4]耿玲娜.基于混合储能的风光互补微电网功率及调度策略优化研究[D].镇江:江苏大学,2016.
[5]孟润泉,刘家赢,文波,等.直流微网混合储能控制及系统分层协调控制策略[J].高电压技术,2015,41(7):2186-2193.
[6]米阳,吴彦伟,符杨,等.直流微电网群分层控制策略[J].电力系统及其自动化学报,2017,29(12):14-20.
[7]张金星,于艾清,黄敏丽.基于自适应下垂控制的直流微电网群分层协调控制[J].现代电力,2017,12:1229-1342.
[8] Qobad Shafiee,Tomislav Dragicevic,Juan C Vasquez,et al. Hierarchical control for multiple DC-microgrids cluster[J].IEEE Transactions on Energy Conversion,2014,29(4):922-933.
[9]宁阳天,李相俊,董德华,等.储能系统平抑风光发电出力波动的研究方法综述[J].供用电,2017,34(4):2-11.
[10]李介夫,王光,李卫国,等.一种利用混合储能系统平抑风光功率波动的控制策略[J].东北电力大学学报,2014,34(5):32-38.
[2]张宋杰.双极性直流微电网混合储能系统控制策略研究及实现[D].太原:太原理工大学,2017.
[3]廖毅.风光储联合发电系统输出功率特性和控制策略的研究[D].北京:华北电力大学,2012.
[4]耿玲娜.基于混合储能的风光互补微电网功率及调度策略优化研究[D].镇江:江苏大学,2016.
[5]孟润泉,刘家赢,文波,等.直流微网混合储能控制及系统分层协调控制策略[J].高电压技术,2015,41(7):2186-2193.
[6]米阳,吴彦伟,符杨,等.直流微电网群分层控制策略[J].电力系统及其自动化学报,2017,29(12):14-20.
[7]张金星,于艾清,黄敏丽.基于自适应下垂控制的直流微电网群分层协调控制[J].现代电力,2017,12:1229-1342.
[8] Qobad Shafiee,Tomislav Dragicevic,Juan C Vasquez,et al. Hierarchical control for multiple DC-microgrids cluster[J].IEEE Transactions on Energy Conversion,2014,29(4):922-933.
[9]宁阳天,李相俊,董德华,等.储能系统平抑风光发电出力波动的研究方法综述[J].供用电,2017,34(4):2-11.
[10]李介夫,王光,李卫国,等.一种利用混合储能系统平抑风光功率波动的控制策略[J].东北电力大学学报,2014,34(5):32-38.