Optimal placement of energy storage in a regional integrated energy system considering electric and thermal demand responses

Authors

Renjun ZHOU, Hunan Province Collaborative Innovation Center of Clean Energy and Smart Grid， Changsha University of Science & Technology，Changsha 410114, ChinaFollow
Yanrong WU, Hunan Province Collaborative Innovation Center of Clean Energy and Smart Grid， Changsha University of Science & Technology，Changsha 410114, China
Xuan PAN, Hunan Province Collaborative Innovation Center of Clean Energy and Smart Grid， Changsha University of Science & Technology，Changsha 410114, China
Haifeng YU, Economic & Technological Research Institute, State Grid Hunan Electric Power Co., Ltd., Changsha 410007,China; Hunan Key Laboratory of Energy Internet Supply?demand and Operation, Changsha 410004, China
Shiyao JIANG, Economic & Technological Research Institute, State Grid Hunan Electric Power Co., Ltd., Changsha 410007,China; Hunan Key Laboratory of Energy Internet Supply?demand and Operation, Changsha 410004, China
Ting WEN, Economic & Technological Research Institute, State Grid Hunan Electric Power Co., Ltd., Changsha 410007,China; Hunan Key Laboratory of Energy Internet Supply?demand and Operation, Changsha 410004, China

Keywords

wind power consumption, optimal configuration of energy storage capacity, integrated demand response, regional integrated energy system

Abstract

The application of energy storage optimization configuration and demand?side response in the integrated energy system can decouple the constraints of "heating to determine power" in the operation of combined heat and power (CHP) units, and improve energy utilization efficiency. Therefore, taking the performance of power generation, heating, electricity consumption and heat consumption on both sides of the source and charge into account, installing the electricity?heat energy storage equipment on the source side to realize the thermoelectric decoupling of CHP, and fully utilizing the dispatching value of the electricity?heat integrated demand response (IDR) resources on the load side, an optimal configuration model for electric and thermal energy storage capacity of regional integrated energy systems considering the integrated demand responses is established. The model considers the constraints of electricity storage and heat storage, power balance constraints, etc., and aims to minimize the total annual cost of the regional comprehensive energy system to solve the problem of optimal economic allocation of electricity and thermal energy storage. The results of case study show that coordinated operation of multiple energy storage and load side can reduce operating cost, and considering the integrated demand response reduces the configuration capacity of energy storage. The energy storage configuration on the source side and the integrated demand response on the load side promote wind power consumption, and improve the economy, precision and flexibility of the integrated energy system operation.

DOI

10.19781/j.issn.1673-9140.2023.01.002

First Page

11

Last Page

17

Recommended Citation

ZHOU, Renjun; WU, Yanrong; PAN, Xuan; YU, Haifeng; JIANG, Shiyao; and WEN, Ting (2023) "Optimal placement of energy storage in a regional integrated energy system considering electric and thermal demand responses," Journal of Electric Power Science and Technology: Vol. 38: Iss. 1, Article 2.
DOI: 10.19781/j.issn.1673-9140.2023.01.002
Available at: https://jepst.researchcommons.org/journal/vol38/iss1/2