Abstract
The modeling and multi-energy flow calculation of an integrated energy system (IES) are the bases of its operation and planning. This paper establishes the models of various energy sub-systems and the coupling equipment for an electricity-gas-thermal IES, and an integrated multi-energy flow calculation model of the IES is constructed. A simplified calculation method for the compressor model in a natural gas network, one which is not included in a loop and works in constant compression ratio mode, is also proposed based on the concept of model reduction. In addition, a numerical conversion method for dealing with the conflict between nominal value and per unit value in the multi-energy flow calculation of IES is described. A case study is given to verify the correctness and speed of the proposed method, and the electricity-gas-thermal coupling interaction characteristics among sub-systems are studied.
| Original language | English |
|---|---|
| Article number | 5 |
| Journal | Protection and Control of Modern Power Systems |
| Volume | 6 |
| Issue number | 1 |
| Early online date | 23 Feb 2021 |
| DOIs | |
| Publication status | E-pub ahead of print - 23 Feb 2021 |
Keywords
- Compressor
- Integrated energy system
- Integrated multi-energy flow calculation
- Newton-Raphson
- Per unit value and nominal value
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering