Request for Proposals High Power Density Inverters  

Description   Google is soliciting proposals for groundbreaking research in the area of increasing the power  density for DC­to­AC power conversion. This funding opportunity is available only to academics  who are full time faculty at degree granting Universities.  This solicitation is occurring in parallel  with the Little Box Challenge presented by Google and the IEEE Power Electronics  Society.  Successful award recipients must outline in detail a plan  for how to practically  construct an inverter that meets or exceeds the specifications outlined in the Little Box  Challenge. It is envisioned that award recipients could use their grant funding to assist in  building an inverter that could win the competition. Applying for or receiving an award will not  affect an entrant's chances of winning the grand prize.    The proposed research should work towards methods of achieving power densities greater than  50 W/in3 in a 2 kVA DC­to­AC conversion device. Preference will be given to proposals that  describe the highest credible targeted power densities above 50 W/in3. Preferably, the methods  used should be widely applicable to a range of voltage inputs, power levels and operating  conditions even if some modification is required from the device designed to try to win the prize.  The architecture and research plan proposed should outline how a device can be built that has  the required power density and upon being fed a DC voltage of 450 Volts through a 10 Ω resistor  is able to:    ● Handle up to 2 kVA loads, with power factors of 0.7 ­ 1, leading or lagging  ● Operate in a non grid­tied mode with load changes similar to a residential household  ● Output 240 +/­ 12 Volts single phase AC  ● Output at a frequency of 59.7­60.3 Hertz  ● Fit into a rectangular enclosure of no more than 40 inches3 with no dimension smaller  than 0.5 inches and no dimension greater than 20 inches   ● Have a voltage total harmonic distortion + noise (THD+N) of < 5%  ● Have a current total harmonic distortion + noise (THD+N) of < 5%  ● Have  an  input  ripple  current of  <  20%  when  driven off  a  450  V  supply  in series with a 10  Ω resistor    1 

      ●

Have an input ripple voltage of < 3% when driven off a 450 V supply in series with a 10 Ω  resistor  ● All finger accessible locations of the device must remain below 60°C during operation  when tested at 15­30°C ambient   ● Have a minimum DC to AC conversion efficiency of 95 %  ● Galvanic Isolation is not required  ● Adhere to the limits on electromagnetic interference specified in FCC Part 15 B  ● May only take in air and electrical connections from the outside, no external liquid, or  other means of cooling is allowed  ● Be consistent with standard safety requirements such as ground fault current  interruption, safe grounding and under/over voltage protection   ● Have a long operating life with minimal service requirements    Applicants are encouraged to look in detail at the specifications and testing procedure provided in  the Little Box Challenge for further guidance on Google’s areas and specifications of interest. In  order to meet all these criteria, it is expected that the researchers would have to pioneer  substantial innovation in several areas:     ● Suppression of 120 Hz input current ripple: The typical solution to minimizing the  input current ripple on the DC side of the inverter, which is detrimental to the operation of  PV, battery and other systems, has been to include large amounts of energy storage in  the form of unreliable, large volume electrolytic capacitors. The incorporation of alternate  means of suppressing this 120 Hz while consuming minimal volume, either by using  different topologies, devices or both is a key interest of this solicitation and motivation for  the Little Box Challenge.    ● Miniaturization of components by operation at higher frequencies: The typical  methods of switching a fixed voltage DC signal into AC, such as Pulse Width Modulation,  require the use of passive components to smooth square wave pulses into a sine wave  with minimal harmonic distortion. The energy storage requirement, and thus the size, of  these passive components can diminish as the frequency of these square wave pulses  is increased. These higher frequencies may now be attainable either through the use of  wide bandgap semiconductors such as Gallium Nitride (GaN) and Silicon Carbide (SiC),  or through new topologies using traditional silicon semiconductors. Utilizing advances in  the passive components themselves are also of interest.     ● Thermal Management: The amount of heat generated by the system will decrease as  the efficiency of the system increases. The local thermal management requirements in  the system may also be relaxed by using devices (e.g. wide bandgap semiconductors)  that can operate reliably at elevated temperatures. New passive or active thermal  management approaches may also be used to manage the heat that does get generated  and distribute it evenly across the surface area of the enclosure to avoid the presence of  hot spots above 60°C.     2 

        ●

Electromagnetic Compliance (EMC): The possible use of higher frequencies, new  components in a smaller form factor offers both challenges and opportunities for limiting  both the electromagnetic interference within acceptable limits for FCC Part 15 B (or  equivalent) compliance . Researchers must take a comprehensive approach to both  system layout and small volume filtering strategies in order to meet the EMC  requirements at this high power density.      The areas of innovation above are part of the reason that Google now believes that the higher  power density sought after may now be achievable, albeit still very challenging. Successful  applicants will outline in detail their approach to each of the challenges listed above.     The possible means of tackling each of these challenges is meant to be illustrative but not  prescriptive. Applicants are free, and encouraged, to propose alternative ways of reaching these  high power densities using methods not listed above, but must propose a credible explanation as  to why they would be successful and preferable to those listed here. For example, if an applicant  believes that this high power density is achievable without going to higher switching frequencies,  they must explain why this is the case, and what they are doing over and above the state of the  art.     

Award Information   We expect to award 10­15 projects in amounts between 20,000 USD and 40,000 USD. Most  gifts will be in the range of 25,000 USD ­ 30,000 USD and are intended to cover approximately 10  months of work. The funding will be in the form of a one time unrestricted gift given within 2  months of the award announcement. The award committee reserves the right to lower or  increase the individual or total award amount given at its discretion.    The judging of the grant awards will be conducted by a panel of 5 individuals selected by Google  and the IEEE Power Electronics Society. This committee will make a non­binding  recommendation to Google that will then ultimately decide the grant recipients and amounts  given.      The criteria for judging will be a determination as to which teams present:  ● The most credible path and eagerness to build an inverter that can win the Little Box  Challenge in the time frame of under a year.  ● The most clear explanation of the approach to the four needed innovation areas listed  above (suppression of 120 Hz input current ripple, miniaturization of components by  operation at higher frequencies, thermal management and electromagnetic compliance).   ● Credit will also be given to applications that raise credible innovation challenges or  approaches not mentioned in this document.     3 

      ●

Credit will also be given for descriptions as to additional benefits of the methods used to  different use cases such as grid tied inverters, rectifiers or other applications or testing  criteria not specifically mentioned here or in Little Box Challenge. 

 

How to Apply   Applicants for a grant must be Faculty at an accredited, degree­granting University in a country  that is eligible to compete in the Little Box Challenge. Students are encouraged to recruit faculty  members and apply as a team. All applications must be submitted in English.     In a written document (pdf only) of   ● Maximum 4 pages  ● 8.5” by 11” page size  ● 12 point font for the main body. Arial preferred but not required    ● Text in figures, captions, references, footnotes, endnotes and tables must be at least 10  point Font or equivalent, Arial preferred but not required   ● 1 inch (2.54 cm) margins on all sides    Please describe:   ● The target power density you think is achievable while meeting all the constraints listed  above and in The Little Box Challenge   ● Clearly indicate your approach to   ○ 120 Hz ripple suppression on the DC input  ○ Miniaturization of components in the DC­AC conversion stage  ○ Thermal management  ○ Electromagnetic compliance  that would enable the power density target listed   ● Any other design features and approaches that you think are relevant that should be  considered as virtues of your approach   ● Applications that simply cite papers without elaborating on their virtues, how they can be  incorporated into a complete system and what the proposed research would do to  translate the content of the papers into a practical device will be looked down upon     Additional information required but not counting towards the 4 page limit.   ● Principal Investigator(s) CV(s) (limit 3 co­PIs, 3 pages each)   ● CVs of key team members that will be assisting in the research (limit 3 team members, 2  pages CVs each)    Optional information that may be provided at applicant’s discretion but not counting towards the 4  page limit.   ● Potential partnerships with other entities, such as other academics, commercial device  manufacturers, etc. that would aid in the construction of the system (1 page max)    4 

      ●

Relevant research, work done by applicant(s) related to the content of the Little Box  Challenge goals.  (1 page, 5 citations max, 1 paragraph summary of relevance of each  citation) 

Your proposal must not contain any confidential or proprietary information.     The deadline for submissions is September 30, 2014.  We expect to make final decisions by  the end of November, 2014.  Please follow the instructions on the relevant Research at Google  webpage to submit your proposal and upload your pdf.  

  5 

Request for Proposals High Power Density Inverters Services

The most clear explanation of the approach to the four needed innovation areas listed above (suppression of 120 Hz input current ripple, miniaturization of components by operation at higher frequencies, thermal management and electromagnetic compliance). ○ Credit will also be given to applications that raise credible ...

193KB Sizes 0 Downloads 300 Views

Recommend Documents

2018 Request for Proposals Services
Jul 9, 2018 - well with a team; increased confidence in academic knowledge and ... These are one-year awards, intended for use during 2018-2019.

2018 Request for Proposals Services
University's innovative workshop to engage undergraduate women in hands-on research. Award Information. Google is requesting and encouraging proposals ...

Request for Qualifications and Proposals - Hotel Development ...
Request for Qualifications and Proposals - Hotel Development Opportunity - Berkeley, CA(1).pdf. Request for Qualifications and Proposals - Hotel Development ...

REQUEST FOR PROPOSALS Operation: Storefront - Downtown ...
Sep 24, 2010 - ... Improvement funds. Separate application process will be required. ... Questions should be submitted in writing by Monday, October 11, to Mackenzie Paull, Economic Development and Retail Manager, at [email protected].

REQUEST FOR PROPOSALS Operation: Storefront - Downtown ...
Sep 24, 2010 - Program will create lively storefronts and engaging street level presence at inactive sites. These active spaces will increase connectivity and ...

Request for Proposals (RFP) for Planning Consultant ... - City of Mobile
Mar 4, 2015 - provide evidence of required insurance, a City of Mobile business license, and enrollment in the ... Zoning & Land Use ... obligated to accept the lowest priced proposal, but shall make an award in the best interest of the.

Request for Proposals (RFP) for Planning Consultant ... - City of Mobile
Mar 4, 2015 - include an analysis of previous planning documents, past grant applications, and .... submission of proposals are contained in this package.

2014 Request for Research Proposals (RFP) -
Policy dialogue using the research products developed through this call for proposals ... high-quality knowledge base on key pre-primary and primary education ... affiliated with a university, agency, or research center with past demonstrated ...

42V High Power Density Buck Regulators in a ... - Linear Technology
Introduction. Power dissipation is a significant problem facing the designers of DC/DC converters in industrial and auto- motive applications, where high currents ...

Trout Unlimited Request for Proposals Membership ... - Dr. Logan Park
marketing and communications on representation issues in our media and marketing, and participate in ... Write about diversity for TU's national media outlets including website, magazine, blogs, and in social ... 2, 2015. TU Volunteer Operations and

PY 2018 ESG Funding Request for Proposals - City of Mobile
TIMELINE. It is expected that the selection process will begin on December 11th, 2017 and selection recommendations being made by January 2, 2018.

Request for Proposals - HOME Investment Partnership ... - City of Mobile
COMMUNITY & HOUSING DEVELOPMENT DEPARTMENT ... Copies of the application are available at the address listed below between the hours of 8:00 a.m. ...

Request for Proposals - HOME Investment Partnership ... - City of Mobile
COMMUNITY & HOUSING DEVELOPMENT DEPARTMENT ... Copies of the application are available at the address listed below between the hours of 8:00 a.m. ...

High-efficiency power supplies for home ... - Services
At Google, we run many computers in our data centers to serve your queries, so energy conservation and efficiency are important to us. For several years we've been developing more efficient power supplies to eliminate waste from power supplies. Inste

REQUEST FOR QUALIFICATIONS ENGINEERING SERVICES The ...
administrative services related to the implementation of projects funded by the ... staff, to perform all other functions needed for the proposed services. 7.

High density-focused uncertainty sampling for active ...
serious challenges to data analysis researchers and practitioners. ..... All the experiments are performed using the MOA data stream software suite (Bifet.

Theoretical Study for High Energy Density Compounds from ...
this class of compounds is the point of our work. In 2008, we have reported the theoretical .... enormous amounts of computer CPU time, memory, and disk space. And presently, the ...... Published online 21, March, 2012. Published in print ...

DN489 - High Efficiency, High Density 3-Phase Supply Delivers 60A ...
The LTC3829 includes unique features that maximize effi- ciency, including strong gate drivers, short dead times and a programmable Stage Shedding mode, ...

Theoretical Study for High Energy Density Compounds from ...
Mar 21, 2012 - Open Access book publisher. Interested in ... In addition, There are applications of polyphosphazene in membrane separation ... In the development of synthesis recent 20 years, In 90s, Tuncer Hökelek of Hacettepe university ...

DN489 - High Efficiency, High Density 3-Phase ... - Linear Technology
Introduction. The LTC®3829 is a feature-rich single output 3-phase synchronous buck controller that meets the power den- sity demands of modern high speed, ...

DN489 - High Efficiency, High Density 3-Phase ... - Linear Technology
Design Note 489. Jian Li and Kerry Holliday ... S3P. S2N. S2P. S1N. S1P. 9. 47pF. DIFFOUT. 20.0k. 30.1k. 100pF. CSS. 0.1μF. 0.1μF. 2.2Ω. 0.1μF. 1nF. 5. 6. 7.

Alternative Geometries for Increasing Power Density in ...
Aug 15, 2005 - The ideal electrical resistive load was calculated for each of the two designs, using Eq. (3). The output of the beam (through the unity gain ...

Request for Proposals (RFP) for Design-Build Team ... - City of Mobile
16. All smoke and CO detectors shall be provided per code. 17. Green building practices and design elements which promote energy efficiency are encouraged.

REQUIREMENTS FOR RESEARCH PROPOSALS
Apr 12, 2016 - REQUIREMENTS FOR RESEARCH PROPOSALS. The following itemizes the district's requirements for research to be conducted within the ...