Outage recovery is important for reducing the economic cost and improving the reliability of a distribution system(DS)in extreme weather and with equipment faults.Previous studies have separately considered network re...Outage recovery is important for reducing the economic cost and improving the reliability of a distribution system(DS)in extreme weather and with equipment faults.Previous studies have separately considered network reconfigu-ration(NR)and dispatching mobile power sources(MPS)to restore the outage load.However,NR cannot deal with the scenario of an electrical island,while dispatching MPS results in a long power outage.In this paper,a resilient outage recovery method based on co-optimizing MPS and NR is proposed,where the DS and traffic network(TN)are considered simultaneously.In the DS,the switch action cost and power losses are minimized,and the access points of MPSs are changed by carrying out the NR process.In the TN,an MPS dispatching model with the objective of mini-mizing power outage time,routing and power generation cost is developed to optimize the MPSs’schedule.A solu-tion algorithm based on iteration and relaxation methods is proposed to simplify the solving process and obtain the optimal recovery strategy.Finally,numerical case studies on the IEEE 33 and 119-bus systems validate the proposed resilient outage recovery method.It is shown that the access point of MPS can be changed by NR to decrease the power outage time and dispatching cost of MPS.The results also show that the system operation cost can be reduced by considering power losses in the objective function.展开更多
This article focuses on measures envisaged and adopted by the Italian Revenue Agency during the COVID-19 pandemic to prevent the spread of virus and to support businesses and individuals in mitigating the worst econom...This article focuses on measures envisaged and adopted by the Italian Revenue Agency during the COVID-19 pandemic to prevent the spread of virus and to support businesses and individuals in mitigating the worst economic impact of the cri-sis.In particular,measures such as suspension of tax payments and processing,grants allocation,tax credits and increased use of digital services have been adopted to re-cover and relaunch the financial system.As a member state of the European Union,Italy has also submitted its recovery and resilience plan that is committed to boosting a sustainable growth while fostering the digital and green transition.展开更多
基金National Key R&D Program of China (2020YFF0305800)Science and Technology Project of SGCC (520201210025).
文摘Outage recovery is important for reducing the economic cost and improving the reliability of a distribution system(DS)in extreme weather and with equipment faults.Previous studies have separately considered network reconfigu-ration(NR)and dispatching mobile power sources(MPS)to restore the outage load.However,NR cannot deal with the scenario of an electrical island,while dispatching MPS results in a long power outage.In this paper,a resilient outage recovery method based on co-optimizing MPS and NR is proposed,where the DS and traffic network(TN)are considered simultaneously.In the DS,the switch action cost and power losses are minimized,and the access points of MPSs are changed by carrying out the NR process.In the TN,an MPS dispatching model with the objective of mini-mizing power outage time,routing and power generation cost is developed to optimize the MPSs’schedule.A solu-tion algorithm based on iteration and relaxation methods is proposed to simplify the solving process and obtain the optimal recovery strategy.Finally,numerical case studies on the IEEE 33 and 119-bus systems validate the proposed resilient outage recovery method.It is shown that the access point of MPS can be changed by NR to decrease the power outage time and dispatching cost of MPS.The results also show that the system operation cost can be reduced by considering power losses in the objective function.
文摘This article focuses on measures envisaged and adopted by the Italian Revenue Agency during the COVID-19 pandemic to prevent the spread of virus and to support businesses and individuals in mitigating the worst economic impact of the cri-sis.In particular,measures such as suspension of tax payments and processing,grants allocation,tax credits and increased use of digital services have been adopted to re-cover and relaunch the financial system.As a member state of the European Union,Italy has also submitted its recovery and resilience plan that is committed to boosting a sustainable growth while fostering the digital and green transition.
