Study on the Technology of MPLS in Wide Area Protection System

2012 ◽  
Vol 463-464 ◽  
pp. 1355-1359
Author(s):  
Yi Ming Cai ◽  
Ze Li
Keyword(s):  
Communication Network ◽  
Power System ◽  
Communication Networks ◽  
Communication Technologies ◽  
Wide Area ◽  
Communication Model ◽  
Communication Performance ◽  
Wide Area Protection ◽  
Communication Scheme ◽  
Media And Communication

Subject to protection of power system, the article analyzes the communication technologies suitable for the current WAPS like IP exchange technology and MPLS etc. and analyzes the feasibility of these technologies in the field of power system WAPS. After comparative analysis of the current communication means, i.e. physical media and communication model etc., the article proposes a WAPS communication network scheme based on MPLS technology. Finally, the article uses network emulation software OPNET to simulate the communication performance of this communication scheme, compares it with current WAPS communication networks and gets the conclusion that the proposed wide area communication network scheme meets WAPS communication requirements

Synchrophasor-Based Wide Area Protection Scheme for System Stressed Conditions to Avoid Power System Blackout

2019 ◽  
pp. 1-34 ◽  
Author(s):  
Kasimala Venkatanagaraju ◽  
Monalisa Biswal
Keyword(s):  
Power System ◽  
Transmission System ◽  
Area Measurement ◽  
Wide Area ◽  
Stable Operation ◽  
Wide Area Protection ◽  
Large Power ◽  
Wide Area Measurement System ◽  
Protection Scheme ◽  
Protective Relay

Protection of transmission system is crucial for the secured and stable operation of power system. Under stress conditions, the operating parameters of power system violate their limits. From the past anatomy reports of several blackouts, it is clear that equipment, control, and protective relay failures are the major causes behind large power system failure. From study, it is also revealed that failure of back-up protection is more prone during system stressed conditions. In transmission system, third-zone of distance relay is highly affected by system stressed events such as voltage instability and load encroachment. As third-zone protection is a delayed protection scheme, with the help of wide area measurement system better protection function can be provided to reduce future percentage of blackout. In this chapter, a detailed discussion about the existing solutions is provided to mitigate the issue of system stressed conditions and a synchrophasor technology-based approach is provided. Results for different cases are provided to show the efficacy of the proposed method.

scholarly journals Conformance Testing and Analysis of Synchrophasor Communication Message Structures and Formats for Wide Area Measurement Systems in Smart Grids

2017 ◽  
Vol 6 (2) ◽  
pp. 106
Author(s):  
Adeyemi Charles Adewole ◽  
Raynitchka Tzoneva
Keyword(s):  
Power Systems ◽  
Power System ◽  
Communication Networks ◽  
Smart Grids ◽  
Data Communication ◽  
System Stability ◽  
Area Measurement ◽  
Wide Area ◽  
Protection And Control ◽  
And Control

The renewed quest for situational awareness in power systems has brought about the use of digital signal processing of power system measurements, and the transmission of such data to control centres via communication networks. At the control centres, power system stability algorithms are executed to provide monitoring, protection, and control in order to prevent blackouts. This can be achieved by upgrading the existing Supervisory Control and Data Acquisition (SCADA) systems through the deployment of newly proposed power system synchrophasor-based applications for Wide Area Monitoring, Protection, and Control (WAMPAC). However, this can only be done when there is a complete understanding of the methods and technologies associated with the communication network, message structure, and formats required. This paper presents an analysis of the IEEE C37.118 synchrophasor message framework, message formats, and data communication of synchrophasor measurements from Phasor Measurement Units (PMUs) for WAMPAC schemes in smart grids. A newly designed lab-scale testbed is implemented and used in the practical experimentation relating to this paper. Synchrophasor measurements from the PMUs are captured using a network protocol analyzer software-Wireshark, and the compliance of the synchrophasor message structures and formats captured was compared to the specifications defined in the IEEE C37.118 synchrophasor standard.

scholarly journals Wide-Area Protection and Power System Utilization

2005 ◽  
Vol 93 (5) ◽  
pp. 997-1003 ◽  
Author(s):  
J. Bertsch ◽  
C. Carnal ◽  
D. Karlson ◽  
J. McDaniel ◽  
Khoi Vu
Keyword(s):  
Power System ◽  
Wide Area ◽  
Wide Area Protection ◽  
System Utilization
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