| Title |
A Study on Improvement of Voltage Regulation Performance of Photovoltaic Inverter in Low-Voltage System |
| Authors |
조종민(Jongmin Jo) ; 이우종(Wujong Lee) ; 이일용(Ilyong Lee) ; 맹창엽(Changyeop Maeng) ; 김동섭(Dongsub Kim) ; 조성수(Seongsoo Cho) |
| DOI |
https://doi.org/10.5370/KIEE.2021.70.3.475 |
| Keywords |
Distributed Energy Resource; Distribution Line Impedance; Voltage Regulation Algorithm; Active Voltage Control |
| Abstract |
This paper studies and proposes some algorithm for voltage regulation of distributed energy resource in distribution system from a electric power corporate point of view. In a recent situation, as the level of connection of distributed energy resource to the distribution system increases, the voltage excess problem is frequently occurring. Therefore, electric power corporate need a way to solve the voltage excess problem. In this paper, KEPCO propose a voltage regulation control algorithm for the photovoltaic inverter that can improve the renewable capacity of the low-voltage system. This paper examines a method to improve the capacity of renewable energy of the power system, where it increases the power generation utilization rate of renewable power owners comparing and evaluating the voltage regulation effect of the extra-high-voltage and low-voltage systems by controlling the reactive power of the solar inverter. In particular, a voltage regulation control algorithm of the solar inverter was proposed in order to improve the voltage control effect of the low voltage system, and the effect was evaluated and analyzed in the low voltage system model. |