Power System Modeling and Analysis Development for Clean Energy Integration Panel Session

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1 University of Pittsburgh 7 th Annual Electric Power Industry Conference Power System Modeling and Analysis Development for Clean Energy Integration Panel Session Brian Gemmell, PhD General Manager, Siemens PTI, Schenectady, NY

2 Future for Power Generation Siemens Global View Fossil energy sources remain dominant, but renewable energy becomes more important Power Generation (in TWh) Renewable Energy (without Hydro) in 2008: 580 TWh (3% of total) Geothermal Geothermal Solar 2% 13% Wind 38% 47% Biomass 2.3% per year 20,300 TWh 3% 16% 13% 21% 6% 41% Fossil energy sources 68% 54% 33,000 TWh 17% Hydro 15% Nuclear 15% Gas 20% Oil 2% Coal 32% Renewable Energy (without Hydro) in 2030: 5,580 TWh (17% of total) 4% Solar 29% Other 1% Biomass 14% Wind 52% Source: Siemens

3 Future for Energy Consumption Some Examples Siemens Global View China USA Germany 4.0 %/a % 12% 8% 2% 0% Renewable (w/o water) Hydro Nuclear Gas Oil 0.8 %/a 4.3 3% 6% 19% % 6% Renewable (w/o water) Hydro % 3% 24% -0.3 %/a % Renewable (w/o water) 3.4 1% 2% 16% 2% 2% 78% Fossil 82% 66% Coal Fossil 68% 21% 1% 49% Fossil 71% 23% 29% 0% 16% Nuclear Gas Oil Coal Fossil 45% 14% 2% 47% Fossil 63% 4% 0% 21% 1% 36% Hydro Nuclear Gas Oil Coal Fossil 58% Power generation in 1,000 TWh Power generation in 1,000 TWh Power generation in 1,000 TWh Source: Siemens 3

4 A Paradigm Shift leading to a Sustainable Energy System 19 th century 20th century Start of 21st century End of 21st century Electrification of society Age of coal Large-scale generation of electrical energy Age of fossil fuels Challenges force process of rethinking: Demographic shift; Resources becoming scarce; Climate change The New Power Age Electricity becomes the form of energy for most applications in daily life. Energy system not sustainable Sustainable energy system Generation & load closely coordinated Power supply limited to individual regions or urban areas Generation follows load Interconnected network grids, centralized power generation by estimated consumption Energy system shifting Increasingly decentralized, fluctuating power generation through renewable energies Load follows generation Intelligent grids enable high percentage of renewable energies (e.g. ecars and heat pumps) Fossil fuels & Water Power Fossil fuels, Water Power & Nuclear Power Fossil fuels, Water Power, Nuclear Power, Biomass, Wind & Solar Renewable Energies, (solar, wind, water power, biomass), Clean Coal, Gas & Nuclear Power(?) No environmental concerns Environmental awareness 4

5 Three steps to Sustainable Energy Supply 1 Optimization of the energy mix 2 Efficiency increases along the entire energy chain 3 Systemic optimization / Smart Grid 5

6 Clean Energy Integration Grid Code and Reliability The Basics Verify Grid Code Compliance at Point of Interconnection Sufficient Capacity and Redundancy to Meet Transmission Reliability Standards 6

7 * * Why is Power System Modeling and Analysis Development Important? BrefMax; BrefMin VrMax; VrMin Vsched Bref D + - F I P D + + F MSC Deadband SVC B MSC Switching Logic MSC Switching VrefMax; VrefMin Vreg G 1 + st Vm eas D - - F D + + F SVC Deadband P Bmax; Bmin Delay Droop Isvc Non-linear gains I If V<Vcutoff Bmax=Bmin=0 Look-up Table SVC B Technology Models 7

8 Specific Wind Model Development PSS E wind simulation packages developed and supported by Siemens PTI: 8

9 Generic Wind Models Type 1 conventional directly connected induction generator Type 2 wound rotor induction generator with variable rotor resistance Type 3 doubly-fed induction generator Type 4 full converter interface Type 1 Type 2 generator Plant Feeders generator Plant Feeders 9 PF control capacitors Slip power as heat loss Next generation of generic models based on feedback from manufacturers and field tests ac to dc PF control capacitors generator Type 3 ac to dc dc to ac partial power Plant Feeders generator Type 4 ac to dc dc to ac full power Plant Feeders

10 Delivering Power from Remote or Off-Shore Wind Farms Keeping Up-to-Date with Wind Turbine Development New Voltage Source Converter based HVDC Technology First floating wind turbine buoyed off Norway 2.3MW, 7.4 miles off-shore in 721ft deep from Siemens 10 HVDC Plus from Siemens

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