As a key application of smart grid technologies,the smart distribution network(SDN)is expected to have a high diversity of equipment and complexity of operation patterns.Situational awareness(SA),which aims to provide...As a key application of smart grid technologies,the smart distribution network(SDN)is expected to have a high diversity of equipment and complexity of operation patterns.Situational awareness(SA),which aims to provide a critical visibility of the SDN,will enable a significant assurance for stable SDN operations.However,the lack of systematic evaluation through the three stages of perception,comprehensive,and prediction may prevent the SA technique from effectively achieving the performance necessary to monitor and respond to events in SDN.To analyze the feasibility and effectiveness of the SA technique for the SDN,a comprehensive evaluation framework with specific performance indicators and systematic weighting methods is proposed in this paper.Besides,to implement the indicator framework while addressing the key issues of human expert scoring ambiguity and the lack of data in specific SDN areas,an improved interval-based analytic hierarchy process-based subjective weighting and a multi-objective programming method-based objective weighting are developed to evaluate the SDN SA performance.In addition,a case study in a real distribution network of Tianjin,China is conducted whose outcomes verify the practicality and effectiveness of the proposed SA technique for SDN operating security.展开更多
在当前能源与环境问题日趋严重的背景下,分布式能源被越来越多的人所重视。但是,由于分布式电源自身的特性,以及其间歇性的随机、波动特性,使传统配电网络的灵活性不足,给电网的安全稳定运行带来了极大的挑战。近年来,智能电网等相关技...在当前能源与环境问题日趋严重的背景下,分布式能源被越来越多的人所重视。但是,由于分布式电源自身的特性,以及其间歇性的随机、波动特性,使传统配电网络的灵活性不足,给电网的安全稳定运行带来了极大的挑战。近年来,智能电网等相关技术的发展与应用,使配电网络呈现出一种开放性的特点。但是,在新能源占比不断增加的同时,新能源接入也给配电网络带来了诸多负面效应。主动配电网络(Active Distribution Network,ADN)就是为解决上述问题而提出的。在主动配网中,新能源接入可使其具有更高的灵活性与高效性,并有效提升其安全稳定程度,降低其对传统电网的冲击。基于此,对ADN在规划、运行过程中面临的问题与挑战进行了分析。展开更多
基金This paper was supported by the National Natural Science Foundation of China(Grant No.51807134).
文摘As a key application of smart grid technologies,the smart distribution network(SDN)is expected to have a high diversity of equipment and complexity of operation patterns.Situational awareness(SA),which aims to provide a critical visibility of the SDN,will enable a significant assurance for stable SDN operations.However,the lack of systematic evaluation through the three stages of perception,comprehensive,and prediction may prevent the SA technique from effectively achieving the performance necessary to monitor and respond to events in SDN.To analyze the feasibility and effectiveness of the SA technique for the SDN,a comprehensive evaluation framework with specific performance indicators and systematic weighting methods is proposed in this paper.Besides,to implement the indicator framework while addressing the key issues of human expert scoring ambiguity and the lack of data in specific SDN areas,an improved interval-based analytic hierarchy process-based subjective weighting and a multi-objective programming method-based objective weighting are developed to evaluate the SDN SA performance.In addition,a case study in a real distribution network of Tianjin,China is conducted whose outcomes verify the practicality and effectiveness of the proposed SA technique for SDN operating security.
文摘在当前能源与环境问题日趋严重的背景下,分布式能源被越来越多的人所重视。但是,由于分布式电源自身的特性,以及其间歇性的随机、波动特性,使传统配电网络的灵活性不足,给电网的安全稳定运行带来了极大的挑战。近年来,智能电网等相关技术的发展与应用,使配电网络呈现出一种开放性的特点。但是,在新能源占比不断增加的同时,新能源接入也给配电网络带来了诸多负面效应。主动配电网络(Active Distribution Network,ADN)就是为解决上述问题而提出的。在主动配网中,新能源接入可使其具有更高的灵活性与高效性,并有效提升其安全稳定程度,降低其对传统电网的冲击。基于此,对ADN在规划、运行过程中面临的问题与挑战进行了分析。
