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    2016 Invited Plenary Sessions

    Session Chair: Fred C. Lee, Virginia Tech

  • 1: Chinese HVDC Technology and Application Junzheng Cao
  • Portrait of Junzheng Cao

    Junzheng Cao
    Deputy Chief Engineer
    NR Electric Research Institute


    Majority of Chinese coal and hydro resources are based in the northern and southwestern of the country, which are more than 1000km away from the heavy load centers in the central and eastern. In order to transmit bulk electricity over such long distances, more than 70GW HVDC/UHVDC transmission capacity has been installed in China. Several more UHVDC projects with a total transmission capacity of 27GW are under constructions. By the end of 2030, SGCC (State Grid Corporation of China) plans to construct additional 27 UHVDC links, forming an AC/DC hybrid electricity grid with strong and smart characteristics. In addition to the HVDC development for Chinese domestic applications, more HVDC schemes with probably even higher operation voltages and capacities will be developed for inter-continent connections, which will form part of the actions under the "One belt and one road" strategy proposed by Chinese government.

    The presentation will give an overview of the HVDC schemes commissioned and key equipment developed in China. China has developed the 1100kV/5000A and 320kV/1800A HVDC converter technologies respectively for 1100kV LCC-UHVDC and 320KV VSC-HVDC applications. A purposely developed 200kV/15A DC circuit breaker technology will be firstly installed on Zhoushan 5-terminal MTDC project. Several research projects were granted in the developments of DC/DC transformer and DC current limiter technologies. A design of 1100kV DC wall bushing using improved insulation has been achieved. In addition to these key equipment, the state-of-art testing facilities have been built at different altitudes throughout China to verify the designs functionally and dielectrically.

  • 2: CPES - The Early Days Fred C. Lee
  • Portrait of Fred C. Lee

    Fred C. Lee
    CPES Director
    University Distinguished Professor
    Virginia Tech


    Virginia Tech was among a handful of universities in the United States who had the vision to build a power electronics program in the 1970's. This was before the era of tremendous growth of information technologies, infrastructure technologies, and, today's foremost challenge of the human race, developing clean energy technologies for sustainable growth. Who could have anticipated the coming of these great events and the critical role that power electronics played to enable them?

    VPEC/CPES has not only had the fortune of witnessing these great events as they unfolded. We were well-positioned to play an integral part in these trendsetting events. What has set CPES apart as a long-standing center of excellence in power electronics over the past four decades, and still sets it apart with ever-increasing growth, is the remarkable recruitment of a slew of talent from the beginning until this day. I take great pleasure and pride in sharing with you the stories of some of the individuals who joined VPEC in the 1980's and the early 1990's. It was their collective effort that established the Center's reputation.

  • 3: Going Electric Vlatko Vlatkovic
  • Portrait of Vlatko Vlatkovic

    Vlatko Vlatkovic
    Chief Technology Officer
    GE Power Conversion


    Bringing technology to large infrastructure industries is challenging. The talk is about driving charge in business through innovation. We will look at what it takes to build and implement technology strategy in a large diverse company. We will also examine some of the latest technology trends in industrial power electronics and power processing.

  • 4: The Single-Minded Approach Wei Chen
  • Portrait of Wei Chen

    Wei Chen
    Silergy Technology


    VPEC/CPES has been single-mindedly pursuing the power conversion technology to achieve the highest power density and power efficiency since its inception. Over decades, it has pioneered technology advancement in the field of power electronics including topology, control, new power device, component integration and advanced packaging. It has greatly enhanced the energy conservation efforts worldwide and has stimulated global research programs which have collectively trained thousands of engineers and researchers. The same single-minded approach can also be applied to the business world with rewarding results.

  • 5: Advancing the State-of-the Art in DC-DC Conversion through a Powerful Combination of New Technology, Venture Financed Startups and Demanding Markets Ashraf Lotfi
  • Portrait of Ashraf Lotfi

    Ashraf Lotfi
    VP & Fellow
    Intel Corporation


    In this presentation I will connect advancements in DC-DC conversion to new technology to markets to entrepreneurship using my career journey in power electronics as a guide. It started with a young, ambitious engineer at the Virginia Power Electronics Center passionate about seeing dc-dc conversion continue its technological advance, coupled with the realism of power systems manufacturing at AT&T, layered with an aggressive next-generation technology-driven research effort at Bell Laboratories. This led to a break from conventional wisdom by acting on a nascent desire for creativity and broader industry impact with a whirlwind entrepreneurial startup; Enpirion, with significant outcomes that ended up defining a new, high visibility product category in the marketplace that now resides within the world's largest semiconductor company. After 30 years the journey still continues.

  • 6: Opportunities and Challenges for Electric Vehicle Chargers Gary Hua
  • Portrait of Gary Hua

    Gary Hua
    Founder and President
    Inventronics, Inc.


    Electric Vehicle (EV) business is expected to grow with over 30% AAGR in the next 5-8 years in the worldwide market. Power electronics plays much more important roles in EVs than in traditional vehicles. This presentation talks about the opportunities and key design challenges of EV charging station as well as on-board AC/DC chargers.

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