Abstract
The volatility of wind power generations could significantly challenge the economic and secure operation of combined electricity and heat networks. To tackle this challenge, this paper proposes a framework of optimal dispatch with distributed electric heating storage based on a correlation-based long short-term memory prediction model. The prediction model of distributed electric heating storage is developed to model its behavior characteristics which are obtained by the auto-correlation and correlation analysis with external factors including weather and time-of-use price. An optimal dispatch model of combined electricity and heat networks is then formulated and resolved by a constraint reduction technique with clustering and classification. Our method is verified through numerous simulations. The results show that, compared with the state-of-the-art techniques of support vector machine and recurrent neural networks, the mean absolute percentage error with the proposed correlation-based long short-term memory can be reduced by 1.009 and 0.481 respectively. Compared with conventional method, the peak wind power curtailment with dispatching distributed electric heating storage is reduced by nearly 30% and 50% in two cases respectively.
Original language | English |
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Article number | 114879 |
Journal | Applied Energy |
Volume | 267 |
ISSN | 0306-2619 |
DOIs | |
Publication status | Published - 1 Jun 2020 |
Bibliographical note
Funding Information:This work was supported in part by the China Postdoctoral Science Foundation under Grant 2019M651144, in part by the Liaoning Provincial Department of Education Research Funding under Grant LQGD2019005.
Funding Information:
This work was supported in part by the China Postdoctoral Science Foundation under Grant 2019M651144 , in part by the Liaoning Provincial Department of Education Research Funding under Grant LQGD2019005 .
Publisher Copyright:
© 2020
Keywords
- Combined electricity and heat networks
- Demand response
- Distributed electric heating storage
- Optimal dispatch
- Power system