Real-Time State Estimation of the EPFL-Campus Medium-Voltage Grid by Using PMUs

被引:0
作者
Pignati, Marco [1 ]
Popovic, Miroslav
Barreto, Sergio
Cherkaoui, Rachid
Flores, German Dario
Le Boudec, Jean-Yves
Mohiuddin, Maaz
Paolone, Mario
Romano, Paolo
Sarri, Styliani
Tesfay, Teklemariam
Tomozei, Dan-Cristian
Zanni, Lorenzo
机构
[1] Ecole Polytech Fed Lausanne, DESL Lab, Lausanne, Switzerland
来源
2015 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE (ISGT) | 2015年
关键词
Active distribution networks; communication network; phasor measurement units; real-time monitoring; state estimation; synchrophasors; DISTRIBUTION-SYSTEM;
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
We describe the real-time monitoring infrastructure of the smart-grid pilot on the EPFL campus. We experimentally validate the concept of a real-time state-estimation for a 20 kV active distribution network. We designed and put into operation the whole infrastructure composed by the following main elements: (1) dedicated PMUs connected on the medium-voltage side of the network secondary substations by means of specific current/voltage transducers; (2) a dedicated communication network engineered to support stringent time limits and (3) an innovative state estimation process for real-time monitoring that incorporates phasor-data concentration and state estimation processes. Special care was taken to make the whole chain resilient to cyber-attacks, equipment failures and power outages. The achieved latency is within 65ms. The refresh rate of the estimated state is 20ms. The real-time visualization of the state estimator output is made publicly available, as well as the historical data (PMU measurements and estimated states). To the best of our knowledge, the work presented here is the first operational system that provides low-latency real-time state-estimation by using PMU measurements of a real active distribution network.
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页数:5
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