Dr. Zhu has over 25 years of experience in power systems, including transmission planning, power flow analysis, voltage stability, protection system development, and distributed generation. He has managed a wide range of power grid studies for utilities and system operators. Prior to joining Siemens, Dr. Zhu held roles developing protective relays and received several awards for his work in China. He currently provides consulting services to clients and teaches courses on power systems topics.

1. www.siemens.com/power-technologies/consulting
Experience
Since joining Siemens PTI in 2008, Dr. Zhu has been involved
in various analytical consulting studies in the areas of
generator interconnection studies, expansion planning
studies, NERC compliance studies, protection system
coordination studies, SPS design and implementation, short
circuit and breaker duty studies, transmission service system
impact studies, system reliability studies, and dynamic model
verification. He is a technical contributor for several features
of Siemens PTI’s software (grid code, voltage stability
analysis, etc.).
Dr. Zhu is a frequent course instructor for about 10 Siemens
PTI courses, and is responsible for course development.
Prior to joining Siemens PTI, Dr. Zhu spent six years with the
Midcontinent Independent System Operator, Inc. (MISO), in
Carmel, Indiana. As Senior Transmission Planning Engineer he
was responsible for numerous and significant planning
studies. These included: the MISO 765 kV EHV Conceptual
Overlay Reliability Study (analyzing the reliability impact and
benefits of this $20 billion EHV overlay); the Minnesota CapX
2020 Reliability Study (capacity expansion needed by 2020 -
three projects totaling over $900 million); the Eastern Iowa
Reliability Study (identifying reliability issues and proposing
over $100 million in transmission upgrades); and the 2006,
2007 and 2008 MISO Transmission Expansion Plan (MTEP) in
the West Region (involving six states and one Canadian
province). He was responsible for the MISO Coordinated
Summer Assessment. In addition, he was responsible for
numerous generation retirement studies and system impact
studies. Dr. Zhu also developed procedures and tools for
system impact study, for model development, for MISO
regional economic dispatch, and to meet other needs.
At the start of his career, Dr. Zhu was with the Nanjing
Automation Research Institute in China for nearly seven
years. He was a major contributor to the development and
implementation of LFP-900 series digital transmission line
protective relays, and for this he was awarded the “First-Class
Prize of National Science & Technology Progress” in 1999. Dr.
Zhu also led the successful development and implementation
of LFP-970 series digital transformer relays, LFP-980 series
PTI Consulting
Yaming Zhu
Principal Consultant
Career Highlights
Dr. Zhu has over 25 years of experience in power systems with a strong emphasis on transmission
planning, particularly power flow, power system dynamics, voltage stability, and optimal power
flow. His expertise also includes power system software development, protection system
development and coordination, distributed generation, and distribution system research. Dr. Zhu
has managed and conducted an extensive range of power system studies including transmission
expansion planning, system seasonal reliability assessment, voltage stability analysis, special
protection system (SPS) design and implementation, protection system coordination studies,
generator interconnection studies, generator retirement studies, transmission service impact
studies, and dynamic model verification. Early in his career, Dr. Zhu worked in R&D in protective relaying while with the
Nanjing Automation Research Institute (NARI) in China, and he holds two patents for his work there. Dr. Zhu has published
20 technical papers in refereed journals and conference proceedings, on various power system topics.

2. Yaming Zhu | Principal Consultant Page 2
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digital generator relays, and an automatic protective relay
test instrument for digital relays. He received several awards
at the provincial level for these efforts, and the
corresponding technology was awarded two patents.
Dr. Zhu’s PhD work at Washington State University included
analysis and control of distributed energy resources,
development of adaptive power flow methods for distribution
systems with dispersed generation, and determination of
optimal distribution power flow for systems with distributed
energy resources.
Education
• PhD, Electrical Engineering, Washington State
University, Pullman, WA, 2002
• MS, Electrical Engineering, Nanjing Automation
Research Institute, Nanjing, China, 1992
• BS, Electrical Engineering, Tsinghua University,
Beijing, China, 1989
Languages
• English
• Chinese
Professional Memberships and Activities
• Senior Member of the IEEE
• Frequent Reviewer of Papers Submitted to
IEEE Transactions on Power Systems
Professional Certifications
• Former NERC Certified System Operator, Reliability
Operator (2003, #RA 200305090)
• Registered Professional Engineer (PE) in Ohio
(2004, Registration #69228)
Selected Publications, Awards, and Patents
Selected Publications
1. “Prepare to Meet the Challenges in Regional Transmission Planning and Development,” accepted for publication at the
IEEE PES General Meeting, Denver, CO, Jul. 2015 (co-author: D. Brown).
2. “Expanding Transmission Planning Capabilities for NERC Standard TPL-001-2 Compliance,” in Proc. of IEEE PES General
Meeting, Jul. 2013, Vancouver, Canada (co-author: D. Brown).
3. “Current Renewable Energy Generator Technical Interconnection Requirements,” in Proc. of IEEE PES General
Meeting, Jul. 2012, San Diego, CA, USA (working group paper, co-authors: E. Camm, M. Edds, C. Murray, W. Peter,
P. Valverde, R. Walling).
4. “Transmission Planning Studies for Grid Code Compliance,” in Proc. of IEEE PES General Meeting, Jul. 2012, San
Diego, CA, USA (co-author: D. Brown).
5. “Analysis and Control of Distributed Energy Resources,” in Proc. of IEEE PES General Meeting, Jul. 2011, Detroit, MI,
USA (co-author: K. Tomsovic).
6. “Innovative Planning Approaches for Generator Interconnection Group Study,” in Proc. of IEEE PES General Meeting,
Jul. 2010, Minneapolis, MN, USA (co-authors: D. Brown et al.).
7. “Real-Time Control of Distributed Energy Resources,” in Proc. of IEEE PES General Meeting, Jul. 2010, Minneapolis,
MN, USA (co-author: K. Tomsovic).
8. “Optimal Distribution Power Flow for Systems with Distributed Energy Resources," Journal of Electric Power and
Energy Systems, vol. 29, issue 3, pp. 260-267, Mar. 2007 (co-author: K. Tomsovic).
9. “Development of Models for Analyzing the Load-Following Performance of Microturbines and Fuel Cells,” Journal of
Electric Power Systems Research, vol. 62, issue 1, pp. 1-11, May 2002 (co-author: K. Tomsovic).
Areas of Expertise
• Power System Long Term Planning Studies
• Power System Operational Studies
• System Impact Studies
• NERC Compliance Studies
• Protection System Coordination Studies
• Protective Relays
• SPS Design and Coordination
• Steady State Analysis
• Voltage Stability Analysis
• Dynamic Stability Analysis
• Short Circuit Analysis
• Dynamic Model Verification
• Security Constrained Economic Dispatch
• Distributed Generation and Distribution Systems

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10. “Adaptive Power Flow Method for Distribution Systems with Dispersed Generation,” IEEE Transactions on Power
Delivery, vol. 17, no. 3, pp. 822-827, Jul. 2002 (co-author: K. Tomsovic).
11. “General Specifications for Microprocessor-based Generator-Transformer Unit Protection Equipment,” Book of Electric
Power Standards of China, DL/T 671-1999, Chinese Electric Power Publishing House, 1st Edition, Sep. 1999 (co-
authors: J. Wu, Y. Lu, X. Zhang, J. Yao, X. Yin, D. Chen, L. Li ).
12. “Identification of Transformer Magnetizing Inrush Based on Even-Order Harmonics,” Journal of Hydropower Plant
Automation, vol. 11, no. 12, pp. 216-219, Nov. 1999 (in Chinese, with English abstract) (co-authors: T. Fang et al.).
13. “Development of LFP-981/982 Computer-based Generator Relays,” Journal of Automation of Electric Power Systems,
vol. 22, no. 12, pp. 49-52, Dec. 1998 (in Chinese, with English abstract) (co-authors: Q. Shen et al.).
14. “Advantage and Digital Realization of the Transformer’s Differential Relay with Dead-Angle Waveform Restraint,” in
Proc. of Int’l Conference on Electrical Engineering, Matsue, Japan, 1997, pp. 424-427 (co-authors: Y. Zheng et al.).
15. “Performance and Characteristics of a Transformer Differential Relay based on Dead-Angle Theory and its
Computerized Development,” Journal of Automation of Electric Power Systems, vol. 20, no. 11, Nov. 1996, pp. 36-39
(in Chinese, with English abstract) (co-authors: Y. Zheng et al.).
16. “Research on Several Key Problems of an Automatic Test Instrument for Protective Relays,” in Proc. of The Sixth Nat’l
Symposium on Protective Relays, Shen Zhen, China, 1996, pp. 255-261 (in Chinese) (co-authors: S. Zhou et al.).
17. “A Computer-based Main Protective Relay for Transformers,” in Proc. of The Third Conference of Technology
Interchange and Symposium on Power System Relays, Qing Dao, China, 1995, pp. 103-105 (in Chinese) (co-authors:
J. Gu et al.).
18. “A New Type Automatic Test Instrument for Computer-based Transmission Line Protective Relays,” in Proc. of
Symposium on Test Techniques for Protective Relays in Power Systems, Kun Ming, China, 1995, pp. I-37 – I-42 (in
Chinese) (co-authors: Y. Zheng et al.).
19. “An Automatic Test Instrument for Computer-based Lined Relays,” in Proc. of Int’l Conference on New Developments
in Power System Protection & Local Control, Beijing, China, 1994, pp. 345-348 (co-authors: G. Shen et al.).
20. Automatic Test Instrument used in Transmission Line Digital Protective Relays,” Journal of Automation of Electric
Power Systems, vol. 18, no. 8, pp. 46-49, Aug. 1994 (in Chinese, with English abstract) (co-authors: G. Shen et al.).
Selected Awards
1. “Who’s Who in America 2012” (66th edition), Marquis Who’s Who.
2. Five times winner of “Siemens You Answered” award in Innovative and Responsible categories, Siemens, 2011-2013.
3. “First-Class National Prize for Science & Technology Progress,” China, 1999.
4. “First-Class Ministry of Electric Power Prize for Science & Technology Progress,” China, 1998.
5. “Third-Class Prize for Science & Technology Progress of Jiangsu Province,” China, 1997.
6. “Excellent Researcher & Developer of New Products of Jiangsu Province,” China, 1997.
7. “Excellent Paper of Nanjing City” for the paper of “Automatic Test Instrument used in Transmission Line Digital
Protective Relays,” China, 1995.
Patents
1. “Transformer Protective Relay Set with Symmetrical Identification of Magnetized Inrush,” China Application
Innovation Patent, No. ZL 97 2 47691.1, 1998
2. “Computerized Test Method and Instrument for Protective Relays,” China Innovation Patent, No. ZL 93 1 14341.1,
1996.
Yaming Zhu
Principal Consultant
Siemens Power Technologies International
Tel: +1 (317) 715-4374
yaming.zhu@siemens.com