Three Port Marine Power Electronics Conversion System

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24 Νοε 2013 (πριν από 3 χρόνια και 6 μήνες)

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1

| Program Name or Ancillary Text

eere.energy.gov

Water Power Peer Review

Three Port Marine Power
Electronics Conversion System

Mark Holveck

Princeton Power Systems

mholveck@princetonpower.com

September 20 2011


Marine High
-
Voltage Power Conditioning and Transmission System with
Integrated Energy Storage

2

| Wind and Water Power Program

eere.energy.gov

Purpose, Objectives, & Integration

Wave, tidal, and ocean power technologies are niche markets with a large potential for
growth. The power electronics for these systems are often overlooked.

The
power electronics
for these systems must be:

1.
Capable of operating in a
demanding
, ocean
environment
, over an extended period
of time, with
minimal servicing
and maintenance requirements.

2.
Capable of
Integrating

the
intermittent power
created by most marine hydrokinetic
generation systems, by
buffering the power
using control algorithms and a small
energy storage
bank.


PPS will demonstrate a TRL 6 Marine Power Conditioner with Storage, with
high
conversion efficiency

(97.0%), and a compact high
-
frequency internal transformer
to allow direct connection to a 50kV DC line for transmission to shore. The small size,
efficiency, and simplification of the system design will significantly
reduce

the
installation
cost

of ocean power systems
while improving transmission efficiency
and grid integration.


This project is being cost shared with another project to develop a bi
-
directional 480VAC
to 50KV power converter for rural Alaska villages which is sponsored by Polar
Consult LLC and the University of Alaska.


3

| Wind and Water Power Program

eere.energy.gov

Technical Approach


A critical objective of this program is to demonstrate that
three
proven
technologies

can be
combined

to create a new,
advanced power
conversion system
for marine environments. Demonstrating the
interaction of the
demand response inverter
power conditioner platform, a
high voltage direct current switching bridge
, and an
ultra capacitor
bank
represents a technological advancement in the field of power
conversion electronics.



A low
-
cost, efficient
HVDC switching bridge
will provide a direct
connection to HVDC lines for transmission to shore. A small
ultra capacitor
bank
will provide a cost
-
effective means of storing and discharging small
amounts of energy to buffer the intermittency of the marine generator and
make it a more useable electrical source. The
Demand Response Inverter
power conditioning topology, based on AC
-
link circuit technology, provides
for isolation between all ports and controls the integrated operation and
power flow.





4

| Wind and Water Power Program

eere.energy.gov

Technical Approach

5

| Wind and Water Power Program

eere.energy.gov

Technical Approach





Circuit

topology

with

internal

ultra
-
cap

terminal

and

50

kVDC

output


LVAC

Enclosure

HVDC

Transformer

and

Tank

6

| Wind and Water Power Program

eere.energy.gov

Plan, Schedule, & Budget

Schedule


Initiation date: Sept. 1 2010


Planned completion date: Feb. 29 2011


Budget:


DOE Funding $599,799

80% Spent


Cost Share $400,000

80% Spent




Budget History

FY2009

FY2010

FY2011

DOE

Cost
-
share

DOE

Cost
-
share

DOE

Cost
-
share

$479K

$319K

7

| Wind and Water Power Program

eere.energy.gov



Task

%
complete

4Q10

1Q11

2Q11

3Q11

4Q11

1Q12

2Q12

3Q12

1.Final Hardware Design

100%






Develop specification


PE Topology
-
Electro Mechanical
Packaging.







2.Develop and Test HVDC Switching Bridge

100%






Initial Bring up and test are completed





3.Design Ultracap bank and Controls

40%






Develop custom watercooled film cap design












Develop cap sub
-
assembly










Develop ultra
-
cap control algorithms









4.Final Software Design

80%






Existing controls code has been modified










Currently Integrating code to hardware and validating.







5.Select Vendors / Procurement

90%






Power electronics and magnetics are procured








Mechanical enclosures and BOS are procured








Controls Hardware is Procured








6. Assemble the complete prototype system

80%







7. Develop Test Plan / Software / Assemble Test Bay

60%







8. Run Testing Program

10%







9. Identify Field Testing sites / partners

0%











Plan, Schedule, & Budget

8

| Wind and Water Power Program

eere.energy.gov

Accomplishments and Results


Power converter design completed and prototype unit has been
constructed. Initial component and subassembly testing is
completed. Prototype functional testing is currently ongoing. Current
testing of the HVDC transformer tank at low voltage in air shows the
AC to DC functionality. We are currently beginning to test the DC to
AC functionality.


Hi
-
Pot Testing

HV Transformer

LVAC Enclosure

9

| Wind and Water Power Program

eere.energy.gov

Accomplishments and Results


Prototype build will be completed when “in air” testing is
completed and transformer is placed in oil for HVDC
testing.


Current “in air” measurements of AC
-
DC testing have met
our expectations. DC
-
AC testing is currently underway.


10

| Wind and Water Power Program

eere.energy.gov

Challenges to Date

Important challenges faced are
completing functional testing
of the prototype “in air”
verifying AC
-
DC and DC
-
AC power conversion functionality. Once “in air” testing is
completed the transformer will be processed in oil and full HVDC testing will begin.


Due to the difficulty in making changes and modifications to the unit once the HV stacks
and transformer are immersed in oil, extra care is being taken during the “in air”
testing to ensure accurate and acceptable results.


HV Transformer

Transformer Tank

11

| Wind and Water Power Program

eere.energy.gov

Next Steps

Remaining project plan includes completing “in air” functional testing,
processing transformer in oil and completing HV testing. Completion
and integration of the energy storage unit and final system testing in
Qtr 1 2012. Final report by Feb. 29, 2012.


Next Steps: Review test results and make modifications to prototype
unit as required. Identify partner to help integrate technology into
field
-
able unit for field testing in actual wave
-
power application.

12

| Wind and Water Power Program

eere.energy.gov

Additional Slides

The following slides are for information purposes only

13

| Wind and Water Power Program

eere.energy.gov

Guidelines for number of slides

(Not a template slide


for information purposes only)


Most presenters this year will be allotted between 10 and 20 minutes
for the presentation with 5 to 10 minutes reserved for Q&A. Thus,
shorter presentations should contain a
maximum

of 10
presented

slides, with
no more
than 1 slide per minute for longer presentations.


The bulk of your presentation/discussion should be devoted to the
“Technical Approach,” “Accomplishments and Results,” and “Next
Steps” sections, depending on how much work has been completed

14

| Wind and Water Power Program

eere.energy.gov

Preparation Instructions


(Not a template slide


for information purposes only)


Do not include any
proprietary, copyrighted, or confidential
information. Do not mark any slide with “Official Use Only” or any
similar restriction used by your organization.



Please name your electronic MS PowerPoint presentation file as
follows (use the first 4 letters of your title):

[
Title_Organization_LastName.ppt
].



Do not incorporate animation or special effects since all
presentations will be saved as PDF files for presentation and for
posting on the web. Animations critical to describing the project may
be presented as separate files, however they must be approved by
the Program and presented within your allotted time.


15

| Wind and Water Power Program

eere.energy.gov

Final Instructions


(Not a template slide


for information purposes only)


Your presentation, in MS PowerPoint format, is due to Ed Eugeni at
Edward_Eugeni@sra.com

by
September 27
th
. If your presentation is
too large to email, contact Ed Eugeni at 240
-
223
-
5552 for alternative
delivery options.



Reviewers will be receiving your presentation prior to the meeting.
In order to supply adequate time for the reviewers to review your
material prior to the meeting, you
MUST

submit your presentation by
close of business on
September 27th
. Your project is subject to a
score reduction penalty
if you fail to meet this deadline.

16

| Wind and Water Power Program

eere.energy.gov

Questions?


(Not a template slide


for information purposes only)


Contact:


Hoyt Battey at
Hoyt.Battey@ee.doe.gov
,

202
-
586
-
0143


or Ed Eugeni at
Edward_Eugeni@sra.com
,
240
-
223
-
5552