Smart Auto Transfer Switch Using Low Voltage Disconnect for Reliability Enhancement in Solar PV and Grid Connected Hybrid Systems

DOI

10.2991/978-94-6239-793-4_24How to use a DOI?

Keywords

Automatic Transfer Switch (ATS); Low Voltage Disconnect (LVD); Solar Photovoltaic (PV); Hybrid Power System; Grid Connection; Reliability Enhancement; Battery Protection; Renewable Energy Integration

Abstract

This study presents the design, implementation, and performance analysis of a smart Automatic Transfer Switch (ATS) based on Low Voltage Disconnect (LVD) for reliability enhancement in hybrid Solar Photovoltaic (PV) and grid-connected power systems. The proposed system is developed to enable automatic switching between renewable energy sources (solar PV) and conventional utility grid supply based on real-time battery voltage conditions. The LVD mechanism serves as the primary control component to disconnect or reconnect the load when the battery voltage falls below or exceeds predefined thresholds, ensuring continuous power supply without manual intervention. Experimental results demonstrate that the system operates with high measurement accuracy, with battery voltage deviation ranging from 0.03 to 0.05 V and an average accuracy exceeding 99.8%. Furthermore, the LVD protection mechanism exhibits a fast response time between 0.45 and 0.60 seconds, indicating effective detection of under-voltage conditions and seamless transfer to the grid source. The developed ATS-LVD system successfully enhances the operational reliability of hybrid power systems, protects energy storage from deep discharge conditions, and ensures power availability for end users.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Muhamad Fahmi Amrillah
AU  - Eko Nugroho Widjatmoko
AU  - Paulina M. Latuheru
AU  - Siti Nurlaili Triwahyuni
PY  - 2026
DA  - 2026/10/16
TI  - Smart Auto Transfer Switch Using Low Voltage Disconnect for Reliability Enhancement in Solar PV and Grid Connected Hybrid Systems
BT  - Proceedings of the  International Conference on Advanced Maritime Interconnection (ICAMI 2026)
PB  - Atlantis Press
SP  - 318
EP  - 328
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-793-4_24
DO  - 10.2991/978-94-6239-793-4_24
ID  - Amrillah2026
ER  -