What is a hybrid energy storage system (ESS)?

Abstract: Energy storage systems (ESSs) are the key to overcoming challenges to achieve the distributed smart energy paradigm and zero-emissions transportation systems. However, the strict requirements are difficult to meet, and in many cases, the best solution is to use a hybrid ESS (HESS), which involves two or more ESS technologies.

What is a hybrid energy storage system (Hess)?

The complement of the supercapacitors (SC) and the batteries (Li-ion or Lead-acid) features in a hybrid energy storage system (HESS) allows the combination of energy-power-based storage, improving the technical features and getting additional benefits.

What is hybridization between batteries and SC?

The main objective of hybridization between batteries and SC is to complement the characteristics and capabilities of energy-oriented and power-oriented storage, improving the storage energy system's overall performance.

What are the benefits of hybridization?

Considering the complementary characteristics of storage technologies, the hybridization between two or more devices allows specific power and energy improvement, reduces storage sizing, and optimizes the efficiency of the overall device, among other large power systems technical benefits that can be achieved .

What is a hybrid ESS?

However, the strict requirements are difficult to meet, and in many cases, the best solution is to use a hybrid ESS (HESS), which involves two or more ESS technologies. In this article, a brief overview of the HESS, highlighting its advantages for a wide range of applications, is addressed.

What are energy-based storage devices?

According to their power range and autonomy time, the energy-based storage devices cover specific PQ and regulation demands, bridging power services, and energy management support . The time response is an aim factor for power-based storage applications since it refers to the capability of the fast charge and full discharge in operation .