Summary
Read more on ELECTRAPart D – Model specification and interfacing
The reliable and safe operation of the transformer requires that the dielectric stresses imposed by transient overvoltages are kept within acceptable limits. Suitable transformer models for electromagnetic transient (EMT) studies can be of type white-box, black-box, or grey-box. The white-box and black-box models can have alternative formulations, and they comprise of a large number of parameters. The lack of standard model formats is therefore a major obstacle when transferring models between parties. CIGRE JWG A2/C4.52 proposes data formats that could be used for representing the most common model formulations, including pole-residue models and state-space models. Pseudo-codes are provided that permit to generate data files, and simple examples. The developers of EMT programs should enable their program to read from these data formats, to facilitate the use of white-box and black-box models in their program. The JWG also proposes model specifications that a buyer could use when purchasing a transformer. This TB is one of five TBs from the JWG
Table of content
1. Introduction
1.1. Background, JWG activities, Results
1.2. Model interfacing
1.3. Behavioral descriptions and model types
1.4. TB Organization
2. Terminal admittance modeling
2.1. Pole-residue model
2.2. State-space model
2.3. Conversion from pole-residue models to state-space models
3. Voltage transfer modeling
3.1. Pole-residue model
3.2. State space model
4. Simultaneous admittance and voltage transfer modeling
4.1. Model structure and parameters
4.2. File format
4.3. Other variants
5. Sampled frequency domain data
5.1. Choice of frequency samples
5.2. File formats
6. Guidelines on model selection and requirements
6.1. Model types
6.2. Waveshapes and phenomena
6.3. External overvoltages
6.4. External & Internal overvoltages
7. Model specifications
7.1. Internal surge arresters
7.2. Model source data
7.3. Model type specifications and data format
7.4. Applicability
7.5. General statement by manufacturer
8. Frequency response specifications
8.1. Model source data
8.2. Response type specification and data format
8.3. Applicability
8.4. General statement by manufacturer
9. Customer-manufacturer stepwise actions
10. Discussion
11. Recommendations
12. References
Additional informations
| Publication type | Technical Brochures |
|---|---|
| Reference | 903 |
| Publication year | |
| Publisher | CIGRE |
| ISBN | 978-2-85873-608-9 |
| Study committees |
|
| Working groups | JWG A2/C4.52 |
| File size | 2 MB |
| Pages number | 43 |
| Price for non member | 90 € |
| Price for member | Free |
Authors
Bjørn Gustavsen, Convenor (NO), Angelica Rocha, Secretary (BR),
Alvaro Portillo (UY), Andrzej Holdyk (NO), Anniyappan Palani (DE), Baudilio Valecillos (CH), Behzad Kordi (CA), Bogdan Andriienko (UA), Carlos González-García (ES), Casimiro Álvarez-Mariño (ES), Daniil Matveev (RU), Davor Vujatovic (UK), Ebrahim Rahimpour (DE), Enrique Mombello (AR), Esteban Portales (CA), Federico Portillo (UY), Guillermo Andrés Díaz Flórez (CO), Gustavo H. C. Oliveira (BR), Hans De Herdt (BE), Hans Kristian Høidalen (NO), Ji-Hong Kim (KR), Jos Veens (NL), Jose Carlos Mendes (BR), José Francisco Lofrano (BR), Juliano Montanha (BR), Luiz Fernando de Oliveira (BR), Marc-Olivier Roux (CA), Maxym Ostrenko (UA), Michel Rioual (FR), Mikhail Frolov (RU), Oliver Sterz (DE), Ricardo Castro Lopes (PT), Robert Degeneff (US), Rodrigo Ronchi (MX), Rogerio Azevedo (BR), Shikin Jamil (UK), Tobias Röhrl (DE), Triomphant Ngnegueu (FR), Xosé López-Fernández (ES)
Keywords
power transformers, reactors, power systems, technical performance
Other parts
- High-Frequency Transformer and Reactor Models for Network Studies - Part A: White-Box Models
- High-Frequency Transformer and Reactor Models for Network Studies - Part B: Black-Box Models
- High-Frequency Transformer and Reactor Models for Network Studies - Part C: Grey Box Models
- High-Frequency Transformer and Reactor Models for Network Studies - Part E: Measurements and transformer design details
