OPTIMUM LOCATION OF SPVG TO ENHANCE VOLTAGE STABILITY  USING STATIC TECHNIQUES

MELAT K.   ABDULLA; LOKMAN H.  HASSAN

doi:10.26682/sjuod.2020.23.2.6

MELAT K. ABDULLA Dept.of Electrical and Computer Engineering, College of Engineering, University of Duhok, Kurdistan Region-Iraq
LOKMAN H. HASSAN Dept.of Electrical and Computer Engineering, College of Engineering, University of Duhok, Kurdistan Region-Iraq

DOI: https://doi.org/10.26682/sjuod.2020.23.2.6

Keywords: SPVG, VOLTAGE

Abstract

Solar Photovoltaic Generators (SPVGs) play a great and vital role in providing clean and enough
energy to meet power loads. However, SPVGs integration on power systems increase power grid
problems. It will lead to different problems including disturbance of the grid, instability of the voltage and
swings of the power. The impact of SPVG on the voltage stability of the system is studied in this paper.
The best location of SPVG is obtained using three static techniques. Power flow and the Q-V curve
techniques are used to identify the weakest buses and test the stability of the system under nominal load
condition respectively. On other hand, Continuation Power Flow (CPF) and the Q-V curve techniques are
used to identify the weakest buses and test the stability of the system under heavy load condition
respectively. The proposed techniques are apllied to the New England 39-bus standard system under
various loading conditions. The results reveal that choosing a proper location for the SPVG will improve
the voltage stability of the system. In addition, connecting the SPVG at the nearest bus to the weakest bus
provides better performance than when it connected to the weakest bus.

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