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Optimal day-ahead operation of user-level integrated energy system considering dynamic behaviour of heat loads and customers' heat satisfaction
- Source :
- IET Smart Grid (2019)
- Publication Year :
- 2019
- Publisher :
- Wiley, 2019.
-
Abstract
- This study proposes a novel optimal day-ahead operation method for the user-level integrated energy system (IES), which can take into account the dynamic behaviour of heat loads and customers' heat satisfaction. First, based on the energy hub, the dynamic model of heat loads is added into IES. Additionally, the customers' heat satisfaction model is constructed by the variance of water temperature and punishment coefficient. Then, the optimal day-ahead operation model aimed at minimising the total cost is proposed. Constraints of energy purchase, operation of energy converters, loads, temperature and the variation of temperature are all contained. Piecewise linearisation and a standard modelling method are utilised to simplify the initial non-convex and non-linear problem to a quadratic programming problem. Finally, case studies are carried out on a practical calculation example. Results indicate that the total cost can be reduced by 5.6% when considering the dynamic behaviour of heat loads. Also, customers' heat satisfaction exerts a remarkable influence on the total cost.
- Subjects :
- power generation scheduling
quadratic programming
power distribution economics
power generation economics
nonlinear programming
optimisation
power markets
user-level integrated energy system
dynamic behaviour
heat loads
customers
novel optimal day-ahead operation method
energy hub
dynamic model
optimal day-ahead operation model
total cost
energy purchase
energy converters
standard modelling method
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Subjects
Details
- Language :
- English
- ISSN :
- 25152947
- Database :
- Directory of Open Access Journals
- Journal :
- IET Smart Grid
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.21cd77ab796d4e13a529ce2d9a675c90
- Document Type :
- article
- Full Text :
- https://doi.org/10.1049/iet-stg.2019.0065