Coordinated Scheduling for Interdependent Electric Power and Natural Gas Infrastructures

The extensive installation of gas-fired power plants in many parts of the world has led electric systems to depend heavily on reliable gas supplies. The use of gas-fired generators for peak load and reserve provision causes high intraday variability in withdrawals from high-pressure gas transmission systems. Such variability can lead to gas price fluctuations and supply disruptions that affect electric generator dispatch, electricity prices, and threaten the security of power systems and gas pipelines. These infrastructures function on vastly different spatio-temporal scales, which prevents current practices for separate operations and market clearing from being coordinated. In this paper, we apply new techniques for control of dynamic gas flows on pipeline networks to examine day-ahead scheduling of electric generator dispatch and gas compressor operation for different levels of integration, spanning from separate forecasting, and simulation to combined optimal control. We formulate multiple coordination scenarios and develop tractable physically accurate computational implementations. These scenarios are compared using an integrated model of test networks for power and gas systems with 24 nodes and 24 pipes, respectively, which are coupled through gas-fired generators. The analysis quantifies the economic efficiency and security benefits of gas-electric coordination and dynamic gas system operation.

[1]  Roger Z. Ríos-Mercado,et al.  Optimization problems in natural gas transportation systems. A state-of-the-art review , 2015 .

[2]  M. Shahidehpour,et al.  Security-Constrained Unit Commitment With Natural Gas Transmission Constraints , 2009, IEEE Transactions on Power Systems.

[3]  Richard D. Tabors,et al.  Who's on First? The Coordination of Gas and Power Scheduling , 2012 .

[4]  R D Zimmerman,et al.  MATPOWER: Steady-State Operations, Planning, and Analysis Tools for Power Systems Research and Education , 2011, IEEE Transactions on Power Systems.

[5]  R. Larson,et al.  Optimization of natural-gas pipeline systems via dynamic programming , 1968 .

[6]  Justin Ruths,et al.  Convergence of a pseudospectral method for optimal control of complex dynamical systems , 2011, IEEE Conference on Decision and Control and European Control Conference.

[7]  Jianzhong Wu,et al.  A sequential Monte Carlo model of the combined GB gas and electricity network , 2013 .

[8]  Michael Chertkov,et al.  Model Reduction and Optimization of Natural Gas Pipeline Dynamics , 2015 .

[9]  C. H. Tiley,et al.  Unsteady and transient flow of compressible fluids in pipelines—a review of theoretical and some experimental studies , 1987 .

[10]  Richard D. Tabors,et al.  Measurement of Energy Market Inefficiencies in the Coordination of Natural Gas & Power , 2014, 2014 47th Hawaii International Conference on System Sciences.

[11]  Michael Chertkov,et al.  Optimal control of transient flow in natural gas networks , 2015, 2015 54th IEEE Conference on Decision and Control (CDC).

[12]  Anna Scaglione,et al.  Unit commitment with continuous-time generation and ramping trajectory models , 2016, 2016 IEEE Power and Energy Society General Meeting (PESGM).

[13]  O. Ano,et al.  Integrated natural gas and electricity market: A survey of the state of the art in operation planning and market issues , 2008, 2008 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America.

[14]  Henry H. Rachford,et al.  Optimizing Pipeline Control In Transient Gas Flow , 2000 .

[15]  O. Alsac,et al.  Review Of Linear Programming Applied To Power System Rescheduling , 1979 .

[16]  Carlos M. Correa-Posada,et al.  Security-Constrained Optimal Power and Natural-Gas Flow , 2014, IEEE Transactions on Power Systems.

[17]  M. Steinbach.  On PDE solution in transient optimization of gas networks , 2007 .

[18]  Russell Bent,et al.  Pressure Fluctuations in Natural Gas Networks Caused by Gas-Electric Coupling , 2015, 2015 48th Hawaii International Conference on System Sciences.

[19]  Goran Strbac,et al.  Multi-time period combined gas and electricity network optimisation , 2008 .

[20]  C. Cañizares,et al.  Reactive Power and Voltage Control in Distribution Systems With Limited Switching Operations , 2009, IEEE Transactions on Power Systems.

[21]  Sara Grundel,et al.  Model Order Reduction of Differential Algebraic Equations Arising from the Simulation of Gas Transport Networks , 2014 .

[22]  Victor M. Zavala,et al.  Large-scale nonlinear programming using IPOPT: An integrating framework for enterprise-wide dynamic optimization , 2009, Comput. Chem. Eng..

[23]  Michael Chertkov,et al.  Cascading of Fluctuations in Interdependent Energy Infrastructures: Gas-Grid Coupling , 2014, ArXiv.

[24]  A.C.Z. de Souza,et al.  Modeling the Integrated Natural Gas and Electricity Optimal Power Flow , 2007, 2007 IEEE Power Engineering Society General Meeting.

[25]  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).

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

[27]  G. Andersson,et al.  Optimal Power Flow of Multiple Energy Carriers , 2007, IEEE Transactions on Power Systems.

[28]  Richard Carlson,et al.  Pipeline to Reliability: Unraveling Gas and Electric Interdependencies Across the Eastern Interconnection , 2014, IEEE Power and Energy Magazine.

[29]  M. Shahidehpour,et al.  Interdependency of Natural Gas Network and Power System Security , 2008, IEEE Transactions on Power Systems.

[30]  John Lygeros,et al.  Probabilistic guarantees for the N-1 security of systems with wind power generation , 2013 .

[31]  Mohammad Shahidehpour,et al.  The IEEE Reliability Test System-1996. A report prepared by the Reliability Test System Task Force of the Application of Probability Methods Subcommittee , 1999 .

[32]  Todd Schatzki,et al.  The Interdependence of Electricity and Natural Gas: Current Factors and Future Prospects , 2012 .

[33]  Russell Bent,et al.  Optimal Compression in Natural Gas Networks: A Geometric Programming Approach , 2013, IEEE Transactions on Control of Network Systems.

[34]  Mohammad Shahidehpour,et al.  Optimal coordination of stochastic hydro and natural gas supplies in midterm operation of power systems , 2011 .

[35]  Jay Apt,et al.  Air emissions due to wind and solar power. , 2009, Environmental science & technology.

[36]  E. Litvinov.  Design and operation of the locational marginal prices-based electricity markets , 2010 .

[37]  A.C.Z. de Souza,et al.  Short-Term Operation Planning of Integrated Hydrothermal and Natural Gas Systems , 2007, 2007 IEEE Lausanne Power Tech.

[38]  Russell Bent,et al.  Efficient dynamic compressor optimization in natural gas transmission systems , 2016, 2016 American Control Conference (ACC).

[39]  Mohammad Shahidehpour,et al.  Coordinated scheduling of electricity and natural gas infrastructures with a transient model for natural gas flow. , 2011, Chaos.