HVDC auxiliary power control can significantly improve the transient stability of AC/DC power grid.An HVDC adaptive emergency power support method based on unbalanced power on line estimation is proposed in this paper...HVDC auxiliary power control can significantly improve the transient stability of AC/DC power grid.An HVDC adaptive emergency power support method based on unbalanced power on line estimation is proposed in this paper.By establishing the extended state equation of the system,the on line dynamic estimation of unbalanced power of the system was realized.On this basis,power support was realized based on the principle of the ladder increment.The optimal DC was selected by the power support factor,and the emergency power support controller was installed on the DC.This emergency power support method can realize dynamic optimal power support with minimized control cost.The three infeed HVDC system was built on PSCAD.The simulation results show the effectiveness of the proposed method.展开更多
在分析蓄电池充电时间与容量之间的相关性的基础上,提出一种基于相关向量机(relevance vector machine, RVM)的蓄电池在线健康状态估计(state of health, SOH)方法,可以实现对应急电源(Emergency Power Supply, EPS)蓄电池健康状态的实...在分析蓄电池充电时间与容量之间的相关性的基础上,提出一种基于相关向量机(relevance vector machine, RVM)的蓄电池在线健康状态估计(state of health, SOH)方法,可以实现对应急电源(Emergency Power Supply, EPS)蓄电池健康状态的实时监测,对保证EPS的高效稳定运行和提高系统寿命有重要意义。展开更多
基金the National Natural Science Foundation of China(Grant No.51607158)the Key Scientific Technological Project in Henan Province(Grant No.192102210075)。
文摘HVDC auxiliary power control can significantly improve the transient stability of AC/DC power grid.An HVDC adaptive emergency power support method based on unbalanced power on line estimation is proposed in this paper.By establishing the extended state equation of the system,the on line dynamic estimation of unbalanced power of the system was realized.On this basis,power support was realized based on the principle of the ladder increment.The optimal DC was selected by the power support factor,and the emergency power support controller was installed on the DC.This emergency power support method can realize dynamic optimal power support with minimized control cost.The three infeed HVDC system was built on PSCAD.The simulation results show the effectiveness of the proposed method.
文摘在分析蓄电池充电时间与容量之间的相关性的基础上,提出一种基于相关向量机(relevance vector machine, RVM)的蓄电池在线健康状态估计(state of health, SOH)方法,可以实现对应急电源(Emergency Power Supply, EPS)蓄电池健康状态的实时监测,对保证EPS的高效稳定运行和提高系统寿命有重要意义。
