State-Space Based Load Flow Simulation in a Hardware-In-The-Loop System for Real-Time Demonstration of Charging Infrastructures

Inhalt:
In this article, a state-space based analytical network calculation method of cluster-oriented, motivation-based energy management systems is presented, which is integrated into a hardware-in-the-loop (HIL) real-time demonstrator in order to be able to test state-optimised (e.g. load flow-optimised, charging state-optimised, ...) controls for charging infrastructures of electric cars in real-time. Special attention is also paid to the charging system controls which are to be simulated in a real sub-network incorporating its real-time load values. Achieving this requires an estimation of the system’s load flow, in order to be able to provide all sub-network loads as completely as possible for a subsequent network analysis, whilst also considering the changing load conditions induced by the charging infrastructure. The simulative depiction of the charging systems’ behavior is carried out using an externally operated hardware network simulator, which uses real measurement technology, so that the subordinate information channels and response times for the motivation-based energy management can be mapped in real terms without influencing the network operation.