scholarly journals New Technologies For Measurement Systems Distributed On A Wide Area

10.5772/8721 ◽  
2010 ◽  
Author(s):  
Giovanni Bucci ◽  
Fabrizio Ciancetta ◽  
Edoardo Fiorucci
Keyword(s):  
New Technologies ◽  
Wide Area ◽  
Measurement Systems

scholarly journals A Three-Stage Procedure for Controlled Islanding to Prevent Wide-Area Blackouts

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3066 ◽  
Author(s):  
Hongbo Shao ◽  
Yubin Mao ◽  
Yongmin Liu ◽  
Wanxun Liu ◽  
Sipei Sun ◽  
...  
Keyword(s):  
Power System ◽  
Dynamic Stability ◽  
Power Flow ◽  
Transient Stability ◽  
Load Shedding ◽  
Area Measurement ◽  
Wide Area ◽  
Measurement Systems ◽  
Controlled Islanding ◽  
Three Stages

Controlled islanding has been proposed as a last resort action to stop blackouts from happening when all standard methods have failed. Successful controlled islanding has to deal with three important issues: when, and where to island, and the evaluation of the dynamic stability in each island after islanding. This paper provides a framework for preventing wide-area blackouts using wide area measurement systems (WAMS), which consists of three stages to execute a successful islanding strategy. Normally, power system collapses and blackouts occur shortly after a cascading outage stage. Using such circumstances, an adapted single machine equivalent (SIME) method was used online to determine transient stability before blackout was imminent, and was then employed to determine when to island based on transient instability. In addition, SIME was adopted to assess the dynamic stability in each island after islanding, and to confirm that the chosen candidate island cutsets were stable before controlled islanding was undertaken. To decide where to island, all possible islanding cutsets were provided using the power flow (PF) tracing method. SIME helped to find the best candidate islanding cutset with the minimal PF imbalance, which is also a transiently stable islanding strategy. In case no possible island cutset existed, corresponding corrective actions such as load shedding and critical generator tripping, were performed in each formed island. Finally, an IEEE 39-bus power system with 10 units was employed to test this framework for a three-stage controlled islanding strategy to prevent imminent blackouts.

scholarly journals Distributed Data Analytics Platform for Wide-Area Synchrophasor Measurement Systems

2016 ◽  
Vol 7 (5) ◽  
pp. 2397-2405 ◽  
Author(s):  
Dao Zhou ◽  
Jiahui Guo ◽  
Ye Zhang ◽  
Jidong Chai ◽  
Hesen Liu ◽  
...  
Keyword(s):  
Data Analytics ◽  
Wide Area ◽  
Distributed Data ◽  
Measurement Systems

A power system build-up restoration method based on wide area measurement systems

2010 ◽  
Vol 21 (1) ◽  
pp. 712-720 ◽  
Author(s):  
S. A. Nezam-Sarmadi ◽  
S. Nourizadeh ◽  
S. Azizi ◽  
R. Rahmat-Samii ◽  
A. M. Ranjbar
Keyword(s):  
Power System ◽  
Area Measurement ◽  
Wide Area ◽  
Measurement Systems ◽  
Restoration Method

Optimal PMU-Communication Link Placement for Smart Grid Wide-Area Measurement Systems

2019 ◽  
Vol 10 (4) ◽  
pp. 4446-4456 ◽  
Author(s):  
Xingzheng Zhu ◽  
Miles H. F. Wen ◽  
Victor O. K. Li ◽  
Ka-Cheong Leung
Keyword(s):  
Smart Grid ◽  
Area Measurement ◽  
Wide Area ◽  
Communication Link ◽  
Measurement Systems

scholarly journals Cost Effective Wide Area Measurement Systems for Smart Power Network

2018 ◽  
Vol 5 (3) ◽  
pp. 85-93 ◽  
Author(s):  
Rahul Dubey ◽  
Marjan Popov ◽  
Jose de Jesus Chavez Muro
Keyword(s):  
Cost Effective ◽  
Area Measurement ◽  
Wide Area ◽  
Power Network ◽  
Smart Power ◽  
Measurement Systems

iCASM: An Information-Centric Network Architecture for Wide Area Measurement Systems

2020 ◽  
Vol 11 (4) ◽  
pp. 3418-3427
Author(s):  
Gelli Ravikumar ◽  
Dan Ameme ◽  
Satyajayant Misra ◽  
Sukumar Brahma ◽  
Reza Tourani
Keyword(s):  
Network Architecture ◽  
Area Measurement ◽  
Wide Area ◽  
Measurement Systems

Comparison Between Communication Infrastructures of Centralized and Decentralized Wide Area Measurement Systems

2011 ◽  
Vol 2 (1) ◽  
pp. 206-211 ◽  
Author(s):  
Mohammad Shahraeini ◽  
Mohammad Hossein Javidi ◽  
Mohammad Sadegh Ghazizadeh
Keyword(s):  
Area Measurement ◽  
Wide Area ◽  
Measurement Systems

Temperature Measurement System for Low Pressure Ratio Turbine Testing

2003 ◽  
Author(s):  
R. Va´zquez ◽  
J. M. Sa´nchez
Keyword(s):  
Temperature Measurement ◽  
Measurement System ◽  
High Speed ◽  
New Technologies ◽  
Pressure Ratio ◽  
Low Pressure ◽  
High Accuracy ◽  
Single Stage ◽  
Measurement Systems ◽  
Temperature Measurement System

In 1999, ITP (Industria de Turbopropulsores, S.A.) launched a wide on-going research program focusing on new technologies to provide significant improvements in Low Pressure Turbines cost and weight. As consequence of the new technologies the experience limits are exceeded and new unknown concepts, like high stage loading turbines, must be explored and then a wide experimental work is required for validation purposes. Cold flow single stage rigs in high-speed facilities were selected by ITP as main vehicle to carry out the experimental validation. Single stage Low Pressure Turbine rigs have low-pressure ratio and power consumption, therefore efficiency predictions based on temperature drop require high accuracy thermocouple measurement systems (precision uncertainties lower than ±50 mK), if small efficiency variations must be captured. In this paper, a detailed uncertainty analysis is introduced and a temperature measurement system that allows achieving such high measurement accuracy is evaluated and described. Type T thermocouples are proposed for use in the range 0°C to 80°C, which are individually calibrated. The procedure followed for this calibration is presented and how is possible to achieve a precision of 30 mK. It is also shown as conventional UTR based on metal plates can behave as good as thermal baths in terms of temperature uniformity and errors, with the adequate isolation and temperature reference calibration. The conventional data recording and voltage measurement systems are experimentally evaluated, and they are found as main source of temperature errors. Although following some recommendations the precision of those systems can be improved, it is experimentally probed and therefore suggested the use of high accuracy voltmeter with a commutation unit to reduce significantly the temperature uncertainty. Finally a miniature Kiel Shroud is proposed and aerodynamically characterised in a high-speed facility. Mach, Reynolds number, yaw, blockage and manufacturing tolerance impact on recovery factor can be inferred from those results.

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