Using PMU measurements for enhanced power grid monitoring and protection

Author(s):  
Xiangqing Jiao Xiangqing Jiao ◽  
Yuan Liao Yuan Liao
Keyword(s):  
Author(s):  
Wenbing Zhao

In this chapter, we present the justification and a feasibility study of applying the Byzantine fault tolerance (BFT) technology to electric power grid health monitoring. We propose a set of BFT mechanisms needed to handle the PMU data reporting and control commands issuing to the IEDs. We report an empirical study to assess the feasibility of using the BFT technology for reliable and secure electric power grid health monitoring and control. We show that under the LAN environment, the overhead and jitter introduced by the BFT mechanisms are negligible, and consequently, Byzantine fault tolerance could readily be used to improve the security and reliability of electric power grid monitoring and control while meeting the stringent real-time communication requirement for SCADA operations.


2016 ◽  
Vol 2016 ◽  
pp. 1-7
Author(s):  
Michal Kochlan ◽  
Samuel Zak ◽  
Michal Hodon ◽  
Juraj Micek ◽  
Ondrej Karpis

Data acquisition and processing are well known for some time. Many applications use powerful hardware to acquire, process, and visualize signal waveforms. But there are some applications that do not have to perform high resolution signal acquisition and process large amount of data, for example, low frequency applications of embedded design and applications for remote power grid monitoring. The paper describes special system for low frequency signal data sample acquisition, processing, and visualization implemented as a service on Android-based smart device. The service makes smart device functioning as an oscilloscope or arbitrary waveform generator which is accessible remotely through Bluetooth. The design respects low power consumption requirements, simplicity, and user friendliness in application design. Application scenario was implemented as wireless data acquisition system for power grid monitoring.


2013 ◽  
Vol 834-836 ◽  
pp. 1190-1197
Author(s):  
De Zhi Li ◽  
Gao Jie Xu ◽  
Kun Shi ◽  
He Wang ◽  
Hao Wang ◽  
...  

With the rapid development of economy and electrical load, the social power demand becomes intense. At the same time, the blackout of large areas at home and abroad in recent years has exposed the vulnerability of capacity of anti-external shock of the grid. While, distributed generation has many advantages such as environmentally friendliness, flexibility, decentralizing, high efficiency, good reliability, and it is considered to be a beneficial supplement for large-scale power grid in future. Micro-grid monitoring technology is able to effectively integrate the advantages of distributed generation and improve the capacity of self-healing and anti-external burst interference of the distribution network, in order to achieve grid-connected power generation by more green renewable energy, and minimize its adverse impact to the power grid. This paper firstly introduces the main features and problems of the distribution network monitoring. Then, the main function of the micro-grid monitoring system is described based on concepts and characteristics of micro-grid. At last, there is some suggestions for micro gird monitoring technology.


2018 ◽  
Vol 65 (11) ◽  
pp. 8956-8965 ◽  
Author(s):  
Mingyi Chen ◽  
Min Wang ◽  
Hengwei Yu ◽  
Guanghui He ◽  
Yongxin Zhu ◽  
...  

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