Topology, Analysis, and Modulation Strategy of a Fully Controlled Modular Battery Pack with Interconnected Output Ports
Nima Tashakor, Jan Kacetl, Davood Keshavarzi, and Stefan Goetz

TL;DR
This paper explores a reconfigurable modular battery pack system capable of generating multiple controlled outputs, proposing a novel control strategy that simplifies power electronics and enhances functional integration for applications like electromobility and grid storage.
Contribution
It introduces a decoupled control strategy for multi-output modular battery packs, enabling simplified power electronics without additional switches and supporting wide voltage ranges.
Findings
Simulation results confirm the effectiveness of the control strategy.
Experimental validation demonstrates practical feasibility.
Reduces power electronics and cost in multi-output battery systems.
Abstract
Modular battery integrated converters or so called dynamically reconfigurable battery packs are expanding into emerging applications, including electromobility and grid storage. Although they offer many degrees of freedom, the state of the art focuses on single output systems and mostly neglects potential of such systems in generating multiple controlled outputs. This paper investigates the use of the extra degrees of freedom that a reconfigurable battery offers to generate multiple outputs for the adjustable supply of various independent loads. The technology offers the potential for functional integration, exploiting already existing transistors, and for a reduction of separate dedicated power conversion stages. Interleaved output ports, where some modules are shared among different outputs, can further reduce the necessary power electronics and cost. However, using conventional…
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Taxonomy
TopicsAdvanced Battery Technologies Research · Advanced DC-DC Converters · Microgrid Control and Optimization
