Techno-economical tradeoffs from embedded technologies with storage capabilities on electric and gas distribution networks

The deployment of plug-in hybrid vehicles (PHEVs) and micro-combined heat and power (μ-CHPs) technologies creates the opportunity for these units to be optimally operated under various control schemes to enhance electric grid operation. In addition, if vehicle-to-grid (V2G) and thermal storage features are considered, these embedded technologies could have even a greater impact on network performance. This paper employs an integrated electric and gas time coordinated optimal power flow (TCOPF) to illustrate the techno-economical tradeoffs that energy service network operators might encounter under various load control approaches. A case study is assessed under various formulations in which the TCOPF acts as the intermediary entity that manages cost-effective interactions between the connected technologies and the distribution network operators (DNOs). Results show considerable benefits in electric networks while simultaneously having mild side-effects in gas networks. The TCOPF offers a fresh perspective for stakeholders wishing to successfully integrate distributed resources with energy utilities.

[1]  Pierluigi Mancarella,et al.  Matrix modelling of small-scale trigeneration systems and application to operational optimization , 2009 .

[2]  Salvador Acha,et al.  Integrated modelling of gas and electricity distribution networks with a high penetration of embedded generation , 2008 .

[3]  Adam Hawkes,et al.  Cost-effective operating strategy for residential micro-combined heat and power , 2007 .

[4]  Farrokh Albuyeh,et al.  Grid of the future , 2009, IEEE Power and Energy Magazine.

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

[6]  S. Borlase,et al.  The evolution of distribution , 2009, IEEE Power and Energy Magazine.

[7]  Willett Kempton,et al.  Vehicle-to-grid power fundamentals: Calculating capacity and net revenue , 2005 .

[8]  T C Green,et al.  Impacts of plug-in hybrid vehicles and combined heat and power technologies on electric and gas distribution network losses , 2009, 2009 IEEE PES/IAS Conference on Sustainable Alternative Energy (SAE).

[9]  Zuyi Li Natural gas for generation: a solution or a problem? , 2005 .

[10]  C George Segeler Gas Engineers Handbook , 1965 .

[11]  Ibrahim Dincer,et al.  Thermal Energy Storage , 2004 .

[12]  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).

[13]  Alec N. Brooks,et al.  Vehicle-to-grid demonstration project: grid regulation ancillary service with a battery electric vehicle. , 2002 .

[14]  M. Newborough,et al.  Impact of micro-combined heat-and-power systems on energy flows in the UK electricity supply industry , 2006 .

[15]  Willett Kempton,et al.  Vehicle-to-grid power implementation: From stabilizing the grid to supporting large-scale renewable energy , 2005 .

[16]  Nilay Shah,et al.  Effects of optimised plug-in hybrid vehicle charging strategies on electric distribution network losses , 2010, IEEE PES T&D 2010.

[17]  M. Newborough,et al.  Controlling micro-CHP systems to modulate electrical load profiles , 2007 .

[18]  Anders N. Andersen,et al.  Feasibility of CHP-plants with thermal stores in the German spot market , 2009 .

[19]  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.

[20]  Willett Kempton,et al.  Using fleets of electric-drive vehicles for grid support , 2007 .

[21]  M. V. Engel Gas and electric integrated planning , 2000, 2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134).

[22]  Willett Kempton,et al.  Integration of renewable energy into the transport and electricity sectors through V2G , 2008 .