What is an energy storage system (ESS)?

The implementation of an energy storage system (ESS) as a container-type package is common due to its ease of installation, management, and safety. The control of the operating environment of an ESS mainly considers the temperature rise due to the heat generated through the battery operation.

What is ESS monitoring & management?

Recently, ESS monitoring and management have evolved in various forms, including the accurate measurement or prediction of the temperature inside a battery, monitoring through a combination of IoT sensors and digital twin models, and cloud-based monitoring and management technology.

How does an ESS work?

An ESS is often implemented as a container-type package with an air conditioning system owing to the ease of installation and maintenance. However, the ESS generates heat through the oxidation reduction in ions in the battery during charging and discharging, increasing the battery temperature .

What is the configuration of an ESS container?

The general configuration of an ESS container is shown in Figure 1. It consists of a power conversion system (PCS), battery protection unit (BPU), battery management system (BMS), and battery. The PCS converts AC power to DC power during charging and vice versa during discharging.

How does ESS control the operating environment?

The control of the operating environment of an ESS mainly considers the temperature rise due to the heat generated through the battery operation. However, the relative humidity of the container often increases by over 75% in many cases because of the operation of the air conditioner which pursues temperature-first control.

What is an energy storage system?

Introduction An energy storage system (ESS) is a system that has the flexibility to store power and use it when required. An ESS can be one of the solutions to mitigate the intermittency effect of variable renewable energy (VRE), such as photovoltaic and wind power [1, 2, 3].