The development of microgrids is progressing due to intelligent load demands,clean energy,batteries and electric vehicles.The presence of such systems in microgrids causes power balance inconsistency,leading to increa...The development of microgrids is progressing due to intelligent load demands,clean energy,batteries and electric vehicles.The presence of such systems in microgrids causes power balance inconsistency,leading to increased power losses and deviation in voltage.In this pa-per,a mixed-integer non-linear programming model is proposed for modelling island microgrid energy management considering smart loads,clean energy resources,electric vehicles and batteries.Similarly,a flexible distributed AC transmission system device is proposed to prevent voltage deviation and reduce power losses.A scenario-based multi-objective function has been proposed to decrease energy losses and voltage deviations and energy outages of clean energy resources,reduce emissions from fossil-fired distributed generation and finally decrease load outages to reduce the vulnerability of the islanded microgrid.Regarding the proposed mixed-integer non-linear model and the high number of variables and constraints,a modified evolutionary algorithm based on particle swarm optimization has been proposed to solve the proposed model,which can be more efficient than other algorithms to achieve global optimal solutions.The model presented is implemented on a 33-node island microgrid and the results illustrate that the proposed algorithm and model are effective in reducing energy losses and voltage deviation,as well as reducing the vulnerability of the microgrid.The simulation results demonstrate that the proposed approach can lead to significant improvements in the performance of the microgrid.Specifically,the ap-proach can result in a 27%reduction in losses,a 6%reduction in pollution and a 31%improvement in voltage.Additionally,the approach allows maximum utilization of renewable energy sources,making it a promising solution for sustainable energy management.展开更多
文摘The development of microgrids is progressing due to intelligent load demands,clean energy,batteries and electric vehicles.The presence of such systems in microgrids causes power balance inconsistency,leading to increased power losses and deviation in voltage.In this pa-per,a mixed-integer non-linear programming model is proposed for modelling island microgrid energy management considering smart loads,clean energy resources,electric vehicles and batteries.Similarly,a flexible distributed AC transmission system device is proposed to prevent voltage deviation and reduce power losses.A scenario-based multi-objective function has been proposed to decrease energy losses and voltage deviations and energy outages of clean energy resources,reduce emissions from fossil-fired distributed generation and finally decrease load outages to reduce the vulnerability of the islanded microgrid.Regarding the proposed mixed-integer non-linear model and the high number of variables and constraints,a modified evolutionary algorithm based on particle swarm optimization has been proposed to solve the proposed model,which can be more efficient than other algorithms to achieve global optimal solutions.The model presented is implemented on a 33-node island microgrid and the results illustrate that the proposed algorithm and model are effective in reducing energy losses and voltage deviation,as well as reducing the vulnerability of the microgrid.The simulation results demonstrate that the proposed approach can lead to significant improvements in the performance of the microgrid.Specifically,the ap-proach can result in a 27%reduction in losses,a 6%reduction in pollution and a 31%improvement in voltage.Additionally,the approach allows maximum utilization of renewable energy sources,making it a promising solution for sustainable energy management.
文摘分布式串联耦合潮流控制器是电网潮流控制的典型D-FACTS(distributed FACTS)装置,分布安装在输电导线上,通过变压器耦合的方式调节线路阻抗实现对线路的潮流控制。该控制器体积小、重量轻、无占地、易安装,是一种新型的潮流控制器。简要叙述分布式串联耦合型潮流控制技术和分布式串联电抗器(distributed series reactor,DSR)的原理,主要介绍适合220 kV输电线路的DSR设计,包括耦合变压器设计、取能电源设计、控制组件设计和控制电路设计等。
