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Dr. Robert Balog Department of Electrical and Computer Engineering Texas A&M University.

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Presentation on theme: "Dr. Robert Balog Department of Electrical and Computer Engineering Texas A&M University."— Presentation transcript:

1 Dr. Robert Balog Department of Electrical and Computer Engineering Texas A&M University

2 Mitigating Variability of High Penetration Photovoltaic Systems in a Community Smart Microgrid Dr. Robert S. Balog, PhD PE Assistant Professor, Department of Electrical and Computer Engineering Director, Renewable Energy & Advanced Power Electronics Research Laboratory

3 Teaching, Research & Public Outreach DOE and the Texas State Energy Conservation Office grant Unique partnership between athletics, faculty, and facilities Equivalent to 5-10 home systems In plain view of 83,000 spectators – diverse target audience Data used in classroom and research 27.6 kW rooftop demonstration PV array Grid-tied inverters STEM outreach - high school teachers

4 High Penetration Perceptions High Penetration of Photovoltaic (PV) Systems into the Distribution Grid ( More than 30% penetration, indicating very high penetration Grid Operations and High Penetration PV ( –High penetration is a concern when... Adverse system performance and reliability Cost of mitigation would be unreasonable –Distribution operations issues Feeder characteristics impedance Voltage and frequency control Protection Load characteristics (sometimes a load, sometimes a source) May 25 th, 2012, Germany generated 22.4GW, setting the world record for PV generation and nearly 40% penetration. Their grid did not go unstable.

5 Variability of Grid-Connected Solar Energy Variable power output of PV Results in variable power from the utility

6 Mitigation of Variability 1.Temporal resolution of planning data –Hourly vs. 10 second 2.Community storage - shared resource 3.Photovoltaic array geometry – Planar vs. Non-Planar

7 Temporal Resolution Uncontrollable Load Controllable Source

8 Temporal Resolution Decreased variability (frequency and intensity) Increased control

9 Optimized Community Storage Uncontrolled Load Controlled Source

10 Optimized Community Storage Decreased variability (frequency) Increased control

11 Terracotta Solar Roof Tiles Increased control Eliminated variability

12 Electric Power and Power Electronics Courses Graduate courses (17 existing) ECEN 611General Theory of Electromechanical Motion Devices ECEN 612Comp. Aided Design of Electromech. Motion Devices ECEN 613Rectifier and Inverter Circuits ECEN 614Power System State Estimation ECEN 615Methods of Electric Power Systems Analysis ECEN 616Power System Electromagnetic Transients ECEN 630Analysis of Power Electronic Systems ECEN 632Motor Drive Dynamics ECEN 643Electric Power System Reliability ECEN 666Power System Faults and Protective Relaying ECEN 667Power System Stability ECEN 668High Voltage Direct Current Transmission ECEN 677Control of Electric Power Systems ECEN 679Computer Relays for Electric Power Systems ECEN 686Electric and Hybrid Vehicles ECEN 690DC-DC converters ECEN 711Sustainable Engineering New graduate courses (3) ECEN 689Energy Conversion for Renewable Energy ECEN 689Electrical Aspects of Sustainable Energy Production, Storage, and Utilization ECEN 689Engineering and Economics of Sustainable Energy Systems Undergraduate courses (5) ECEN 459Electric Power Systems I ECEN 460Electric Power Systems II ECEN 438Power Electronic ECEN 441Electric Motor Drives ECEN 442DSP-Based Electromechanical Motion Control Total Faculty: 10 Graduate students: 65

13 Electrical & Computer Engineering Department Students: ~850 undergrad (Dept) ~545 graduate (Dept) ~65 graduate (Power) Faculty: 70 Rankings (US News and World Report): 7 Focus Areas: Analog & Mixed Signal Electronic Circuits Biomedical Imaging & Genomic Signal Processing Computer Engineering Electromagnetics & Microwave Devices Power Systems & Power Electronics Solid State, Nano Electronics & Electro optics Telecommunications, Controls & Signal Processing

14 Dwight Look College of Engineering 8,398 Undergraduate Engineering Students 2,883 Graduate Engineering Students Fall 2012* 53,187 Total Students at Texas A&M University * Official 12 th day data, Texas A&M University Data and Research Services 11,281 engineering students (21% of University total) 3 rd largest undergraduate engineering program in the U.S. (ASEE, Fall 2011) 8 th largest graduate program in the U.S. (ASEE, Fall 2011) 82 New National Merit Scholars (52% of University total) 2 nd highest research expenditures in the U.S.

15 M. Katherine Banks, Ph.D., P.E. Vice Chancellor and Dean of Engineering Director, Texas A&M Engineering Experiment Station Harold J. Haynes Deans Chair Professor Dimitris C. Lagoudas, Ph.D., P.E. Deputy Director, Texas A&M Engineering Experiment Station Senior Associate Dean for Research Associate Vice Chancellor for Engineering Research John and Bea Slattery Chair Professor 5,586 research projects 943 collaborations 2,743 industrial research sponsors 1,379 students supported in research activities $140.7 M in Sponsored Research (FY12)


17 Dr. Robert Balog Department of Electrical and Computer Engineering Texas A&M University

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