The ongoing energy transition introduces new load and generation units like photovoltaic generation in the medium-voltage systems network. These generation units increase the variance of the power injections, resulting in increased stochasticity of the power flow values. For confident assessment of the system’s operating condition, a measurement scheme is essential for accurate state estimation at every minute of the day. This paper presents a performance assessment of the Weighted Least Square (WLS) distribution system state estimation algorithm with respect to the measurement intervals, and proposes a measurement scheme considering the measurement locations and intervals that satisfy a required error limit. The scheme is tested on a synthetic test model of a Dutch MV network, which takes into account projected (year 2040) and highly stochastic power flow profiles. Numerical results show that the proposed algorithm for the measurement scheme determination successfully satisfies the chosen error limit.
|Title of host publication||2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings|
|Number of pages||6|
|Publication status||Published - 2021|
|Event||2021 IEEE Madrid PowerTech - Virtual/online event |
Duration: 28 Jun 2021 → 2 Jul 2021
|Name||2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings|
|Conference||2021 IEEE Madrid PowerTech|
|Abbreviated title||PowerTech 2021|
|Period||28/06/21 → 2/07/21|
Bibliographical noteGreen Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
- Active distribution systems
- measurement intervals
- state estimation algorithms
- stochastic power flows