Control the Voltage Instabilities of Distribution Lines using Capacitive Reactive Power

Shailendra Rajput, Ido Amiel, Moshe Sitbon, Ilan Aharon and Moshe Averbukh
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Shailendra Rajput: Department of Electric/Electronic Engineering, Ariel University, Ariel 40700, Israel
Ido Amiel: Department of Electric/Electronic Engineering, Ariel University, Ariel 40700, Israel
Moshe Sitbon: Department of Electric/Electronic Engineering, Ariel University, Ariel 40700, Israel
Ilan Aharon: Department of Electric/Electronic Engineering, Ariel University, Ariel 40700, Israel
Moshe Averbukh: Department of Electric/Electronic Engineering, Ariel University, Ariel 40700, Israel

Energies, 2020, vol. 13, issue 4, 1-12

Abstract: The voltage instabilities in the distribution lines are primarily related to the integration of photovoltaic power plants with the local grids. Conventional tap-changers cannot compensate for the rapid disparities between generated and consumed power because of sluggish dynamic response. This article presents an effective method and control algorithm to improve the voltage instabilities of distribution lines. Analytical calculation confirms that the application of capacitive reactive power on load is beneficial to keep the voltage at the permissible level. Importantly, the severe concern about the current increment with voltage enhancement is also addressed. The dynamic behavior during capacitance switching is studied using simulation experiments. It is suggested that capacitance is connected to the load for the only time of voltage drop until the transformation ratio changes to the desired level. This article provides an explanation and solution for voltage deviations of electricity distribution lines in steady-state and dynamic modes.

Keywords: distribution lines; voltage instabilities; PV power plants; capacitive reactive power (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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