Projects:2019s1-116 Refresh ElectraNet’s CLOT Application Towards AS 60076.7 Compliance
The last 10 years have seen a significant increase in the amount of solar PV generation in many regions of SA. As a result, they are sending excessive amounts of reverse power flow from customers on the distribution network up to the transmission network. This effect has changed the characteristics of the average daily load profile. In some cases, it compromises the components of the transformer.
This project aims to update and assess the load and weather profiles that categorise transformer ratings.
Introduction
Electranet's Cyclic Loading of Transformers application was written in the late 1990s. This program contained fixed load and weather data, which has not been updated since the application was created. Since then, South Australia has seen the increase of solar PV and wind generation, as well as different behavioural habits that affect the cyclic rating.
A cyclic rating is the ability to load a transformer above nameplate rating for certain periods of a 24 hour cycle. The significance of this for Electranet is that they may choose to load a transformer higher than rated due to network disturbances. To update the cyclic rating, a prediction for the future load profile is required, so that the transformer does not exceed its thermal limits. Part of this project is formulating an improved load profile prediction model, that is based on historical data.
Project Team
Students
- Ellen Thomas
- Jayden Crossing
Supervisors
- A/Prof. Nesimi Ertugrul
- Dr. Josh Smith (Electranet)
- Dr. Rachael Quill
