For the implementation of power market in China,medium-and Iong-term security checks are essential for bilateral transactions,of which the electricity quantity that constitutes the generation feasible region(GFR)is th...For the implementation of power market in China,medium-and Iong-term security checks are essential for bilateral transactions,of which the electricity quantity that constitutes the generation feasible region(GFR)is the target.However,uncertainties from load forecasting errors and transmission contingencies are threats to medium-and Iong-term electricity tradi ng in terms of their in flue nces on the GFR.In this paper,we prese nt a graphic distortio n pattern in a typical threegenerator system using the Monte Carlo method and projection theory based on security constrained economic dispatch.The underlying potential risk to GFR from uncertainties is clearly visualized,and their impact characteristics are discussed.A case study on detailed GFR distortion was included to dem on strate the effectiveness of this visualization model.The result implies that a small uncertainty could distort the GFR to a remarkable extent and that different line-contingency precipitates disparate the GFR distortion patterns,thereby eliciting great emphasis on load forecasting and line reliability in electricity transacti ons.展开更多
分析电力调度数据网的特点和面临的问题,提出一种基于光纤通信的优化方案。该方案从传输层、网络层和业务层3个维度展开,在传输层采用波分复用(Wavelength Division Multiplexing,WDM)/光时分复用(Optical Time Division Multiplexing,O...分析电力调度数据网的特点和面临的问题,提出一种基于光纤通信的优化方案。该方案从传输层、网络层和业务层3个维度展开,在传输层采用波分复用(Wavelength Division Multiplexing,WDM)/光时分复用(Optical Time Division Multiplexing,OTDM)混合传输技术提升网络容量,在网络层引入软件定义网络(Software Defined Networking,SDN)控制技术实现智能调度,在业务层实现基于业务感知的分层传输。实验结果表明,该方案能够有效提升网络性能和资源利用效率,为电力调度数据网的现代化改造提供新的技术思路。展开更多
基金the National Key R&D Program of China under Grant No.2020YFB0905900in part by the State Grid Corporation of China project“Research on inter-provincial price coupling mechanism of national unified electricity spot market”.
文摘For the implementation of power market in China,medium-and Iong-term security checks are essential for bilateral transactions,of which the electricity quantity that constitutes the generation feasible region(GFR)is the target.However,uncertainties from load forecasting errors and transmission contingencies are threats to medium-and Iong-term electricity tradi ng in terms of their in flue nces on the GFR.In this paper,we prese nt a graphic distortio n pattern in a typical threegenerator system using the Monte Carlo method and projection theory based on security constrained economic dispatch.The underlying potential risk to GFR from uncertainties is clearly visualized,and their impact characteristics are discussed.A case study on detailed GFR distortion was included to dem on strate the effectiveness of this visualization model.The result implies that a small uncertainty could distort the GFR to a remarkable extent and that different line-contingency precipitates disparate the GFR distortion patterns,thereby eliciting great emphasis on load forecasting and line reliability in electricity transacti ons.
文摘分析电力调度数据网的特点和面临的问题,提出一种基于光纤通信的优化方案。该方案从传输层、网络层和业务层3个维度展开,在传输层采用波分复用(Wavelength Division Multiplexing,WDM)/光时分复用(Optical Time Division Multiplexing,OTDM)混合传输技术提升网络容量,在网络层引入软件定义网络(Software Defined Networking,SDN)控制技术实现智能调度,在业务层实现基于业务感知的分层传输。实验结果表明,该方案能够有效提升网络性能和资源利用效率,为电力调度数据网的现代化改造提供新的技术思路。
