Electric distribution modeling

[derrickoswald]

While the vast majority of discussion on openmod revolves around transmission level modeling, I was wondering if there is a significant interest in distribution (N5-N7) level modeling.

We work with a number of distribution companies in Switzerland (Elektrizitätsversorgungsunternehmen) to analyse various engineering and economic aspects (short-circuit, fuse specificity, maximum consumer level feed-in, utilization and other figures of merit, etc.) of their networks. Typically this involves very large datasets of network infrastructure and meter data which increases the level of difficulty.

I would be interested in talking with others over these problems and was trying to decide if this is the correct organization and if there would be such topics discussed in Aarhus.

Any feedback is appreciated.

[fabian.neumann]

I would say the following two do-a-thon proposals that have been proposed for the Aarhus workshop are linked to your interests in distribution systems:

Do-a-thon: Modeling and optimization of flexibilities in power distribution systems

In this do-a-thon I would like to discuss challenges one faces when analyzing different flexibilities in power distribution systems, such as battery storages, flexible loads, or reactive power provision, and their impact on grid planning. These challenges are quite diverse and include amongst others Open distribution grid data: Open distribution grid data or approaches to synthesize grid data, especially of urban grid structures where data is particularly rare Assessment of flexibility: Open …

Do-a-thon pandapower / PowerModels

We have recently created an interface from pandapower to PowerModels that allows to optimize the detailed network models that can be built with pandapower with the Julia package PowerModels [1]. This has been proven so far to be a great way to use the detailed network models of pandapower in combination with the JuMP library. Depending on the previous knowledge of interested participants, this could either be a teach-a-thon about pandapower / PowerModels or a do-a-thon to improve the existing f…

I do definitely have the impression that there is interest in discussing distribution system optimisation! The least, I would be interested

Particularly, I would like to learn about typical network topologies/datasets in more detail than e.g. the European Low Voltage Test Feeder [1]

If you would like to initiate a breakout group on an aspect not already covered in the proposals above, I recommend changing category to “Workshop” and tagging “do-a-thon”.

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[1] http://sites.ieee.org/pes-testfeeders/resources/

[derrickoswald]

For completeness, under Distribution network datasets openmod has listed Enexis data which is interesting, but more about assets than engineering. For example, there is no substation data, or engineering parameters for the assets.

[robbie.morrison]

Here are a couple of other leads on representing electricity networks data‑wise. The first looks at various data formats and also parallel efforts to develop and agree open standards:

Standard open common data format (CDF) for power systems

Hi, first post in this forum! I’m wondering how close (or far) we are to a truly standard, common data format (CDF) for describing power systems? The IEEE CDF is outdated and it looks like the raw PSS/E format is unofficially recognized as the “standard” data exchange format between commercial softwares. I’ve found a lot of information on CDF’s for energy models (i.e.: Do-a-thon: Draft for 'energy' datapackage standard (?)), some for transient data (IEEE C37.111), but not much for the power sy…

The second lead is a thread on the openmod mailing list in relation to the representation of electricity grids on OpenStreetMap, including Y‑branching:

• Which data models for power transmission circuits?

[Casals]

@derrickoswald, we are from a Brazilian distribution company (Cemig) and we are very interested in discussing ontologies for electricity distribution systems.

[derrickoswald]

I would very much like to discuss this with you. But, I’m afraid that my focus is more on the nuts-and-bolts of modelling and use than the rarefied atmosphere of ontologies (see here).

[derrickoswald]

The schedule at Aarhus calls for this topic ( Electric distribution modeling) to be discussed 15:30-17:30 on May 22 in room 4.124.

Just following that, at May 22 @ 11:30 am - 12:30 pm EDT (17:30 - 18:30 PM CEST) is a (U.S. based) webinar for:
Interaction Between Transmission and Distribution Planning with DER Deployment

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OK. Never mind. The webinar expects Flash Player 6.0 and Windows Media Player 9.0 so that’s a non-starter right there. Who the fuck does flash or Windows media player any more?

[derrickoswald]

Just to set some base-line and get a feeling for what attendees are expecting, please select your topics of interest :

• simple electrical models (cable impedance & ampacities, fuse ratings)
• network models (what’s connected to what, topology)
• consumer load statistics (min, max, average, standard deviation loads per period)
• consumer load profiles (time series of energy used)
• new DER statistics (usage, capacity, growth over time)
• other

[derrickoswald]

An initial protocol (minutes) of the do-a-thon.Distribution Modeling.pdf (457.7 KB)