Battery energy storage device topology

What is a D-Hest energy storage topology?

We suggest the topology class of discrete hybrid energy storage topologies ( D-HESTs ). Battery electric vehicles ( BEVs) are the most interesting option available for reducing CO 2 emissions for individual mobility. To achieve better acceptance, BEVs require a high cruising range and good acceleration and recuperation.

What are the four topologies of energy storage systems?

The energy storage system comprises several of these ESMs, which can be arranged in the four topologies: pD-HEST, sD-HEST, spD-HEST, and psD-HEST. Detailed investigations will be undertaken in future work to examine special aspects of the proposed topology class.

What is a battery topology?

The proposed topology allows a reconfiguration of the battery internal interconnections from a series cell connection to a parallel one and vice versa. Due to the input voltage adaptation of the voltage regulators, experiments showed a light load efficiency improvement of about 5% .

What is a reconfigurable topology of a battery?

Literature first proposed the reconfigurable topology of the battery, in which the system reconfiguration could be achieved through five control switches per cell. In the series topology, each battery cell had only two controllable switches, which were used to connect other cells in series or bypass .

What are the different types of hybrid energy storage topologies?

The topologies examined in the scientific literature to date can be divided into the passive hybrid energy storage topology ( P-HEST ), which is presented in Section 2, and the active hybrid energy storage topology ( A-HEST ), which is presented in Section 3.

Which multilevel topologies are used in power storage applications?

The cascaded H-bridge converter (CHB) and the modular multilevel converter with chopper or bridge cells (CC or BC) are two highly discussed multilevel topologies in power storage applications. The CHB converters, shown in Fig. 6, consist of several cells of single-phase H-bridge converters connected in series in each phase [35, 36, 37].