Study of voltage stability on photovoltaic integration into Lombok power system

Abstract

Photovoltaic (PV) is known as an intermittent energy source so that the impacts need to be calculated by the developer. In order to ensure the presence of PV does not cause the reliability of the system interrupted, developers are required to perform the stability study before the integration. In this paper, voltage stability study is done by using various PV capacities ranging from 5 MWp to 15 MWp in systems with a capable capacity of 90.79 MW using software ETAP 12.6.0. PV generation is set at the maximum site irradiance where power drop due to weather condition. The analysis shows the system stabilized in less than 50 seconds where the voltage disturbance does not exceed 10% for PV with a capacity of 5 and 10 MWp which is connected to a distribution network. Meanwhile, PV with a capacity of 15 MWp requires load release in order to regain stability.

Analysis of the feasibility of adding a grid-connected hybrid photovoltaic system to reduce electrical load

“…Several investigators have previously used the electrical transient analyzer power electrical transient analyzer power (ETAP) tool to do simulations, such as estimating fault currents to build a system protection circuit [16]. The most recent system modeling is intended to construct an efficient hybrid photovoltaic (PV) reliability system, and testing is performed by simulating the ETAP program by creating a complete and accurate electric power system modeling by integrating power circuit data that will later be implemented directly [17]− [19]. Hybrid system installation in buildings has already been studied, such as developing hybrid photovoltaic-electrical energy storage systems for building electricity generation and supply [20], [21].…”