In recent years, some automatic control methods are gradually used in the power distribution system, and the distribution automation methods are gradually popularized and applied. However, in the actual application pr...In recent years, some automatic control methods are gradually used in the power distribution system, and the distribution automation methods are gradually popularized and applied. However, in the actual application process, there are still some dangerous points which will lead to the decrease of power regulation efficiency and quality, and the stability of power system will be affected accordingly. In the long-term operation of the power system, it will be interfered by many natural factors and human factors, and problems such as voltage instability will occur, which will seriously affect the daily life and use, and will also cause huge economic losses to the end customers.展开更多
Software-defined networking （SDN） is a generic term and one of the major interests of the telecoms industry （and beyond） over the past two years. However, defining SDN is a somewhat controversial exercise. The cla...Software-defined networking （SDN） is a generic term and one of the major interests of the telecoms industry （and beyond） over the past two years. However, defining SDN is a somewhat controversial exercise. The claimed flexibility, as well as other presumed assets of SDN, should be carefully investigated. In particular, the use of SDN to dynamically provision network services suggests the introduction of a certain level of automation in the overall network service delivery process, from service parameter negotiation to delivery and operation. This paper aims to clarify the SDN landscape and focuses on two main aspects of the SDN framework： net- work abstraction, and dynamic parameter exposure and negotiation.展开更多
文摘In recent years, some automatic control methods are gradually used in the power distribution system, and the distribution automation methods are gradually popularized and applied. However, in the actual application process, there are still some dangerous points which will lead to the decrease of power regulation efficiency and quality, and the stability of power system will be affected accordingly. In the long-term operation of the power system, it will be interfered by many natural factors and human factors, and problems such as voltage instability will occur, which will seriously affect the daily life and use, and will also cause huge economic losses to the end customers.
文摘Software-defined networking （SDN） is a generic term and one of the major interests of the telecoms industry （and beyond） over the past two years. However, defining SDN is a somewhat controversial exercise. The claimed flexibility, as well as other presumed assets of SDN, should be carefully investigated. In particular, the use of SDN to dynamically provision network services suggests the introduction of a certain level of automation in the overall network service delivery process, from service parameter negotiation to delivery and operation. This paper aims to clarify the SDN landscape and focuses on two main aspects of the SDN framework： net- work abstraction, and dynamic parameter exposure and negotiation.
