PV-Hybrid
Metrological system identification as a basis for optimal energy system planning and operation of PV hybrid island systems in the low voltage range
Voltage quality is the essential product of the distribution system operator, which is to guarantee smooth operation. The voltage quality is influenced by network and consumer behaviour. An essential grid property in this context is the frequency-dependent grid impedance. A critical load characteristic is a non-sinusoidal current consumption, e.g. caused by the operation of frequency converters, or feedback effects from active control loops.
Non-linear load behaviour can excite critical operating frequencies of the grid, and due to the usually smaller system size, especially in stand-alone systems, can lead to power quality problems and even component or overall system failures.
In the research project, an innovative, portable tool is being developed that can actively record and analyse the frequency-dependent system behaviour over a longer period of time. Its mode of operation will first be investigated as a model, taking into account the real operating resource behaviour of relevant components in the stand-alone system. The goal is an improved understanding of the cause-effect relationships and, if necessary, an optimisation of the operational management or design of future operating resources including control algorithms. In selected field tests, the functioning and effect of the portable tool is investigated and analysed.
Staff:
- Jakob Vellinger
General project information:
- Running duration: 01.09.2022 - 31.12.2024
- Funded by: Federal Ministry for Economic Affairs and Climate Protection (ZIM)
Project partners:
- DHYBRID Power Systems GmbH
