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Commercial and Technical Integration of Distributed Generation into Distribution Networks. Thomas BOPP, Ahmed SHAFIU, Iñigo COBELO, Ian CHILVERS, Nick JENKINS, Goran STRBAC, Haiyu LI, Peter CROSSLEY Contact: t.bopp@umist.ac.uk. Loads, Switched Capacitors, CBs. Local Measurements.
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Commercial and Technical Integration of Distributed Generation into Distribution Networks Thomas BOPP, Ahmed SHAFIU, Iñigo COBELO, Ian CHILVERS, Nick JENKINS, Goran STRBAC, Haiyu LI, Peter CROSSLEY Contact: t.bopp@umist.ac.uk
Loads, Switched Capacitors, CBs Local Measurements Remote Terminal Unit State Estimation Control Scheduling DG, AVC, STATCOMs Remote Terminal Unit Constraints, Contracts Remote Terminal Unit Information Network Data, Pseudo Measurements Distribution Management System Controller
State Estimation for DMSC Applications Challenges • High R/X ratio • Limited number of measurements • Large or meshed networks Solutions • Identification of best locations for measurements • Use of historic data/load profiles
Uncertainty of Voltage Estimates Uncertainty % Bus number
Commercial Integration of DG Challenge • Maximisation of the economic benefit of DG and active management Solution • Combination of optimal power flow simulation and cost benefit analysis • Comparison net present values of different DG and active management scenarios
Protection Problems • Relay selectivity • DG transient stability • Autoreclose scheme issues Solution • 11kV numerical distance protection • Utilise existing equipment • No communication or additional VT