为了满足不同的技术和经济目标,从轻度混合动力、插电式混合动力到全电池动力的电动汽车,都将依赖于新型的、先进的(如基于锂的)蓄电池。这些电池在各种应用条件下的性能预测和寿命表征费工、费时,目前尚未得到充分的发展。一些国家已...为了满足不同的技术和经济目标,从轻度混合动力、插电式混合动力到全电池动力的电动汽车,都将依赖于新型的、先进的(如基于锂的)蓄电池。这些电池在各种应用条件下的性能预测和寿命表征费工、费时,目前尚未得到充分的发展。一些国家已投入资金和人力进行相关的研究,其实通过国际合作,这些努力和花费也许能发挥更大的作用,例如目前正在国际能源机构(The International Energy Agency,IEA)框架内开展的准备工作。正在致力于开发一套标准化的、加速的测试程序,将允许各个测试机构合作分析电池的测量数据。该文评述了欧洲、日本和美国在加速寿命测试程序上的最新进展。以国际合作为目标,搜集、对比和分析现有的测试程序。展开更多
Battery energy storage systems(BESSs)are a kind of important asset for power systems with high integration levels of renewable energy,and they can be controlled to provide various critical services to the power grid.T...Battery energy storage systems(BESSs)are a kind of important asset for power systems with high integration levels of renewable energy,and they can be controlled to provide various critical services to the power grid.This paper presents the real-world experience of using a megawatt-scale BESS with grid-following(GFL)and grid-forming(GFM)controls and a run-of-river(ROR)hydropower plant to restore a regional power system.To demonstrate this,we carry out power-hardwarein-the-loop experiments integrating an actual GFL-or GFM-controlled BESS and a load bank.Both the simulation and experimental results presented in this paper show the different roles of GFL-or GFM-controlled BESS in power system black starts.The results provide further insight for system operators on how GFL-or GFM-controlled BESS can enhance grid stability and how an ROR hydropower plant can be converted into a black-start-capable unit with the support of a small-capacity BESS.The results show that an ROR hydropower plant combined with a BESS has the potential of becoming one of enabling elements to perform bottom-up black-start schemes as opposed to conventional bottom-down method,thus enhancing the system resiliency and robustness.展开更多
文摘为了满足不同的技术和经济目标,从轻度混合动力、插电式混合动力到全电池动力的电动汽车,都将依赖于新型的、先进的(如基于锂的)蓄电池。这些电池在各种应用条件下的性能预测和寿命表征费工、费时,目前尚未得到充分的发展。一些国家已投入资金和人力进行相关的研究,其实通过国际合作,这些努力和花费也许能发挥更大的作用,例如目前正在国际能源机构(The International Energy Agency,IEA)框架内开展的准备工作。正在致力于开发一套标准化的、加速的测试程序,将允许各个测试机构合作分析电池的测量数据。该文评述了欧洲、日本和美国在加速寿命测试程序上的最新进展。以国际合作为目标,搜集、对比和分析现有的测试程序。
文摘Battery energy storage systems(BESSs)are a kind of important asset for power systems with high integration levels of renewable energy,and they can be controlled to provide various critical services to the power grid.This paper presents the real-world experience of using a megawatt-scale BESS with grid-following(GFL)and grid-forming(GFM)controls and a run-of-river(ROR)hydropower plant to restore a regional power system.To demonstrate this,we carry out power-hardwarein-the-loop experiments integrating an actual GFL-or GFM-controlled BESS and a load bank.Both the simulation and experimental results presented in this paper show the different roles of GFL-or GFM-controlled BESS in power system black starts.The results provide further insight for system operators on how GFL-or GFM-controlled BESS can enhance grid stability and how an ROR hydropower plant can be converted into a black-start-capable unit with the support of a small-capacity BESS.The results show that an ROR hydropower plant combined with a BESS has the potential of becoming one of enabling elements to perform bottom-up black-start schemes as opposed to conventional bottom-down method,thus enhancing the system resiliency and robustness.
