Volume 8 Number 2 (Apr. 2016)
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IJCEE 2016 Vol.8(2): 104-116 ISSN: 1793-8163
DOI: 10.17706/IJCEE.2016.8.2.104-116

Real Time Implementation of the Grid to Analyze the Performance of the Variable Speed Wind Turbine−Generator during Grid Disturbances

Muhammad M. A. S. Mahmoud, Adnan Sattar
Abstract—This paper presents a new operational scheme and methodology to analyze the steady-state and low voltage ride through (LVRT) characteristics of a grid connected variable speed wind turbine driven permanent magnet synchronous generator (VSWT-PMSG) using Real Time Digital Simulator (RTDS). This work is also a part of the future power-hardware-in-loop (PHIL) test. VSWT-PMSG uses fully controlled frequency converter (FC) for the grid interfacing. For the sake of detail analysis, determining precise switching frequency, and future PHIL test, the FC is modeled in VSC small time-step of the RTDS. Non-sinusoidal Pulse width modulation (PWM) technique is used in this study by injecting the 3rd harmonics in the reference three phase voltage signals to increase the output voltage of FC. A salient feature of this study is the incorporation of realistic grid, i.e. three phase supply voltage in real time simulation of RTDS/RSCAD to analyze both steady state and LVRT characteristics of grid connected VSWT-PMSG. The supply-voltage signals are subjected with the noise, e.g., voltage notches by the use of non-linear load. Therefore, voltage notching effect is taken into consideration while the controller effectiveness of the FC is examined under different operating conditions. With the incorporation of supply-voltage fluctuations, its influence on the VSWT-PMSG is analyzed with different switching frequencies of the FC. Extensive comparative study is carried out using both ideal and realistic grids.

Index Terms—Frequency converter, permanent magnet synchronous generator (PMSG), voltage source converter (VSC), grid synchronization, RTDS, supply-voltage fluctuations.

The authors are with Al Hosn Gas, Abu Dhabi, UAE.

Cite:Muhammad M. A. S. Mahmoud, Adnan Sattar, "Real Time Implementation of the Grid to Analyze the Performance of the Variable Speed Wind Turbine−Generator during Grid Disturbances," International Journal of Computer and Electrical Engineering vol. 8, no. 2, pp. 104-116, 2016.

General Information

ISSN: 1793-8163
Frequency: Bimonthly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, Engineering & Technology Digital Library, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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