Power Generation Scheduling of Thermal Units Considering Gas Pipelines Constraints

With the growth of electricity generation from gas energy gas pipeline reliability can substantially impact the electric generation. A physical disruption to pipeline or to a compressor station can interrupt the flow of gas or reduce the pressure and lead to loss of multiple gas-fired electric generators, which could dramatically reduce the supplied power and threaten the power system security. Gas pressure drops during peak loading time on pipeline system, is a common problem in network with no enough transportation capacity which limits gas transportation and causes many problem for thermal domain power systems in supplying their demand. For a feasible generation scheduling planning in networks with no sufficient gas transportation capacity, it is required to consider gas pipeline constraints in solving the optimization problem and evaluate the impacts of gas consumption in power plants on gas pipelines operating condition. This paper studies about operating of gas fired power plants in critical conditions when the demand of gas and electricity peak together. An integrated model of gas and electric model is used to consider the gas pipeline constraints in the economic dispatch problem of gas-fueled thermal generator units.


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References:
[1] Quing Li, Seugwon An and Thomas W. Gedra, "Natural Gas and
Electricity Optimal Power Flow," Proceedings of the IEEE/PES
Transmission and Distribution Conference, and presented at the
conference in Dallas TX, September 8, 2003. Paper number 03TD027.
[2] Quing Li, Seugwon An and Thomas W. Gedra, "Solving Natural Gas
Load problem Using Electric Loadflow Teqniques," Proceedings of the
North American Power Symposium, at University of Missouri-Rolla,
October 20-21, 2003.
[3] Oderson Dias de Mello, Takaaki Ohishi, " An Integrated Dispatch
Model of Gas Supply and Thermoelectric Systems," presented at
15th Power Systems Computation Conference,August 22-26,
2005,Liege, Belgium.
[4] M. Shahidehpour, Y.Fu and T. Wiedman, " Impact of Natural Gas
Infrastructure on Electric Power Systems," Proceedings of the IEEE, vol.
93, No.5.May 2005.
[5] Hanjie Chen, Ross Baldick," Optimization Short-Term Natural Gas
Supply Portfolio For Utility Companies," IEEE Transaction on Power
Systems, vol.22, No.1, Februry 2007
[6] M.S.Morais, J.W. Marangon Lima, " Natural Gas Network Pricing and
Its Influence on Electricity and Gas Markets," In: IEEE Bologona
PowerTech Conference, 23-26 Jun 2003, Bologona, Italy
[7] A. Wood, B. Wollenberg, " Power Generation, Operation & Control,"
Wiley-Inersience, 1996, ISBN 0-47158-699-4.
[8] Daniel D. wolf, "Mathematical Properties of formulations of the Gas
Transmission Problem," GREMARS, University of Lillle 3, France.
April 2003.
[9] Samer Takriti, Chonawee Supatgiat, Lilian Wu. " Coordinating Fuel
Inventory and Electric Power Generation Under Uncertainty," IEEE
Transactions on Power Systems, Vol. 16, No. 4, November 2001
[10] Roger Z. Rios Mercado, Suming Wu, L.R. Scott, E.A. Boyd, " A
Reduction Technique for Natural Gas Transmission Network
Optimization Problems," Annals of operation Research 117,217-234,
2002.
[11] C.C. von Weizacker, J. Perner, "An integrated simuation madel for
European electricity and natural gas supply," Electrical Engineering
83 (2001) 265-270, Springer-Verlag 2001.
[12] Chi-Keung Woo, A. Olson, Ira Horowitz, S.Luk, " Bi-directional
causality in California-s electricity and natural-gas markets," Energy
Policy 34 (2006), pp.2060-2070
[13] Won-Woo Lee, " US lessons for energy industry restructuring: based
on natural gas and California electricity incidences," Energy Policy
23 (2004), pp.237-259
[14] "Challenges, Risks, and Opportunities foe Natural Gas from Electric
Power Industry Restructuring," Energy Information Administration/
The challenges of Electric Power Industry Restructuring for Fuel
Supplies.