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All Journal International Journal of Applied Power Engineering (IJAPE)
Mahmoud A. Attia
Department of Electrical Power and Machines, Faculty of Engineering, Ain Shams University, Egypt
Electrical & Electronics Engineering

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Reactive power control to enhance the VSC-HVDC system performance under faulty and normal conditions Mohamed S. Ghayad; Niveen M. Badra; Almoataz Y. Abdelaziz; Mahmoud A. Attia
International Journal of Applied Power Engineering (IJAPE) Vol 8, No 2: August 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (834.807 KB) | DOI: 10.11591/ijape.v8.i2.pp145-158

Abstract

This paper studied the reactive power control of the voltage source converters based high-voltage direct current system (VSC-HVDC). PI (proportional & integration) controller was used in this work to enhance the dynamic response of the system. Gravitational search algorithm (GSA) and sine cosine algorithm (SCA) are used to get optimal parameters of the PI controller. GSA algorithm is based on the gravity law for Newton while SCA depends on mathematical model based on cosine and sine functions. These algorithms have an efficient global Search capability. The VSC-HVDC is exposed to different disturbances for checking the controller robustness. First disturbance was applying three phase faults on the system. While the second one was applying a step change in AC voltage. Finally, Applying step change in regulators reference values. Simulation results proved the controller superiority also verified the enhancement of the system dynamic response.
Co-Authors Almoataz Y. Abdelaziz Mohamed S. Ghayad Niveen M. Badra