An Improved Sequential Energy Flow Analysis Method Based on Multiple Balance Nodes in Gas-Electricity Interconnection Systems

Gas-electric energy interconnection is one of the main forms of energy interconnection in the future. Energy flow analysis is the basis for its characteristic analysis and optimization operation. It is not in line with the actual situation that prescribed output of the gas turbine and neglected dual constraint of the gas-electric in the sequential energy flow analysis. In addition, considering the role of multi-balance nodes and the computational requirements of the sequential algorithm, this paper proposes an improved sequential energy flow analysis method based on multi-balance nodes in gas-electricity interconnection systems. In this paper, the gas flow in the gas network with multiple gas sources, electric compressors, and gas compressors is analyzed in detail, and the sequential algorithm is combined with the multi-balance nodes equation in the form of injected current to analyze the gas-electric interconnect system. Then, by programming the gas-electric interconnection example, comparing with the results of unified algorithm and traditional sequential algorithm, it is verified that the multi-balance nodes algorithm is correct and effective.

[1]  Pierluigi Siano,et al.  A Review of Architectures and Concepts for Intelligence in Future Electric Energy Systems , 2015, IEEE Transactions on Industrial Electronics.

[2]  T. W. Gedra,et al.  Natural gas and electricity optimal power flow , 2003, 2003 IEEE PES Transmission and Distribution Conference and Exposition (IEEE Cat. No.03CH37495).

[3]  Berna Dengiz,et al.  An integrated simulation model for analysing electricity and gas systems , 2014 .

[4]  Jeremy Rifkin,et al.  The third industrial revolution : how lateral power is transforming energy, the economy, and the world , 2011 .

[5]  C. R. Fuerte-Esquivel,et al.  A Unified Gas and Power Flow Analysis in Natural Gas and Electricity Coupled Networks , 2012, IEEE Transactions on Power Systems.

[6]  R. Bert.  Third Industrial Revolution: How Lateral Power Is Transforming Energy, the Economy, and the World By Jeremy Rifkin. New York City: Palgrave Macmillan, 2011 , 2012 .

[7]  Hongjie Jia,et al.  Study on Hybrid Heat-Gas-Power Flow Algorithm for Integrated Community Energy System: 区域综合能源系统电/气/热混合潮流算法研究 , 2015 .

[8]  Audrius Bagdanavicius,et al.  Combined analysis of electricity and heat networks , 2014 .

[9]  Jianzhong Wu,et al.  Combined analysis of electricity and heat networks q , 2015 .

[10]  Carlos M. Correa-Posada,et al.  Integrated Power and Natural Gas Model for Energy Adequacy in Short-Term Operation , 2015, IEEE Transactions on Power Systems.

[11]  Hongbin Sun,et al.  An interval gas flow analysis in natural gas and electricity coupled networks considering the uncertainty of wind power , 2017 .