A Bidirectional Power Router for Traceable Multi-energy Management

TL;DR

This paper experimentally verifies a bidirectional power router that manages dynamic multi-energy flows in residential systems, ensuring stability with a novel switching algorithm based on power flow monitoring.

Contribution

It introduces and validates a hardware-based bidirectional power router with a new switching algorithm for stable multi-energy management.

Findings

Successfully demonstrated dynamic bidirectional power flow handling.

Validated the router’s stability with a commercial stationary battery.

Confirmed the effectiveness of the proposed switching algorithm.

Abstract

To address challenges in improving self-consumption of renewables and resilience in local residential power systems, the earlier work of the authors introduced a novel multi-energy management concept, integrating bidirectional power routing and electricity-hydrogen conversion. This paper focuses on an experimental verification of the bidirectional power router based on line-switching, the essential hardware to realize the concept. The primary contribution is the validation of the router's capability to handle dynamic change of bidirectional power flow. Furthermore, to achieve bidirectional power routing without affecting the smooth and stable operation of the power system, a novel algorithm for router's switching is designed based on power flow monitoring. The effectiveness of the proposed method is demonstrated through an experiment using a setup with a commercially available stationary battery.