Coordinated Operation and Control of Combined Electricity and Natural Gas Systems with Thermal Storage

Yu Liu, Shan Gao, Xin Zhao, Chao Zhang and Ningyu Zhang
Additional contact information
Yu Liu: School of Electrical Engineering, Southeast University, Nanjing 210018, China
Shan Gao: School of Electrical Engineering, Southeast University, Nanjing 210018, China
Xin Zhao: School of Electrical Engineering, Southeast University, Nanjing 210018, China
Chao Zhang: School of Electrical Engineering, Southeast University, Nanjing 210018, China
Ningyu Zhang: State Grid Jiangsu Electric Power Company Research Institute, Nanjing 211103, China

Energies, 2017, vol. 10, issue 7, 1-25

Abstract: As one of the most effective approaches in dealing with the energy crisis, combined electricity and natural gas systems have become more and more popular worldwide. To take full advantages of such hybrid energy networks, a proper operation and control method is required. In this paper, a novel approach coordinating combined heating and power generation is proposed. First, state excursion rate, a criterion describing the deviation of system operation, is defined for system state evaluation. Then, thermal energy storage is allocated to provide more and better operation modes for combined generation. By investigating the state excursion rate of hybrid energy systems, the optimal operation mode is chosen through an analytical strategy. Case studies on hybrid energy networks show that all state variables, including voltages in electric systems and pressures in gas networks, are adjusted to follow proper operation constraints by the implementations of the proposed strategy. In addition to providing sufficient auxiliary services for hybrid systems, it is also possible to maintain the economic and energy-efficient benefits of energy supply. This study provides an effective method to utilize the regulation capability of combined heating and power generations, which is a technical basis of energy internet.

Keywords: combined heating and power generation; energy optimization; hybrid energy flow; integrated energy systems; smart operation strategy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

Downloads: (external link)
https://www.mdpi.com/1996-1073/10/7/917/pdf (application/pdf)
https://www.mdpi.com/1996-1073/10/7/917/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:10:y:2017:i:7:p:917-:d:103468

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().