Post on 31-Jan-2018
BATTERY –FREE DC ENERGY STORAGE FOR UPS
BILL WOLFE – NORTHEAST REGIONAL MANAGER
Expect More From An Energy Storage SolutionExpect More From An Energy Storage Solution
DC Energy Storage DC Energy Storage -- ReGen ReGen
Energy Re-cycle Markets / Applications
Energy Re-cycling Applications
VYCONVYCON
Battery Free UPS Battery Free UPS Flywheel Energy StorageFlywheel Energy Storage
MarketsMarkets
Mission Critical Protection for...
Small System Hospital / IT
300kW VDC XE
Electrical Room
House keeping pad
Top cable entry
480 VAC
300kW VDC XE
Electrical Room
House keeping pad
Top cable entry
480 VAC
20 year life span Small footprint
Eliminating hazards materials
Medium Size - Education Data Center
4 x 300kW VDC XEs
Easily expandable scalableHigh efficiency- 99.4%
24 x VDC XEs (7.2 MWs) High power density Simple installation Green / efficiency initiatives
DC Flywheel Storage – Large System
Modular Solution
5 x 300kW VDC XEsMinimal maintenance
No bearing changes
Insurance Data Center
Battery Hardening
A/B Bus 500KVA
AvailabilityRedundancy
Battery Free UPS Battery Free UPS
Source: Ponemon Institute
The Study:
•453 individuals in U.S. organizations who have responsibility for data center operations were surveyed
•41 data centers that experienced a complete or partial unplanned data center outage
Battery failure is Leading Cause (65%) of Unplanned Outages
Failures:
A single bad cell among thousands can take down a facility
Batteries have a limited life expectancy
False confidence; no indication of problems until needed
Source: Ponemon Institute
Average cost of the Unplanned Outage
Average cost of total or partial unplanned shutdown
Total cost by industry of unplanned shutdown
$397,362K$397,362K
$790,886K$790,886K
$1,017,746$1,017,746
Flywheel DC Energy Storage
A flywheel system stores energy by spinning a mass / flywheel.
Reliable DC power is delivered utilizing the kinetic energy stored in high speed flywheel.
Is a mechanical battery
Power Quality ApplicationsTypical UPS system block diagram
ATSRectifier AC/DC
Genset AC
Inverter DC/AC
Utility AC
Long-term AC alternate source
Critical AC output
Automatic Transfer
Switch 540 VDC480 VAC
VYCON DC Energy Storage
UPS System
UPS Applications – Typical Block Diagram
Rectifier AC/DC
Genset AC
Inverter DC/AC
Utility AC
Critical AC outputAutomatic
Transfer Switch
480 VAC
540 VDC
DC Energy Storage
Long-term AC alternate source
UPS System
UPS Applications – Typical Block Diagram
Rectifier AC/DC
Genset AC
Inverter DC/AC
Utility AC
Critical AC outputAutomatic
Transfer Switch
480 VAC
Long-term AC alternate source
540 VDC
DC Energy Storage
Flywheel Module
DCAC
Genset Start Signal
Bi-directional IGBT converter
Graphical Control
Interface
Remote Monitorin
g
Auxiliary Power(Protected AC source for flywheel controls and vacuum pump)
UPS System
Rectifier AC/DC
Genset AC
Inverter DC/AC
Utility AC
Critical AC outputAutomatic
Transfer Switch
480 VAC
VDC(flywheel and power converter)
Auxiliary Power(Protected AC source for flywheel controls and vacuum pump)
Bi-directional IGBT converter
Flywheel Module
DCAC
Basic Operation Sequence – Normal Operation
Genset Start Signal
Time Line
Graphical Control
Interface
Remote Monitorin
g
Long-term AC alternate source
UPS System
Basic Installation Sequence – Back-up Operation
Rectifier AC/DC
Inverter DC/AC
Utility AC
Critical AC outputAutomatic
Transfer Switch
480 VAC
Graphical Control
Interface
Remote Monitorin
g
VDC(flywheel and power converter)
Auxiliary Power(Protected AC source for flywheel controls and vacuum pump)
Bi-directional IGBT converter
Genset Start Signal
Genset AC
ATS Dela
y
2 sec.
Gense
t Star
t
and r
eady
to
acce
pt lo
ad
6 sec.
ATS Transfe
r
UPS Syn
c and
Rectifi
er Walk
-in
2 sec.
Flywhe
el
Recha
rging
2 to 15 min.
Util
ity O
utag
e
Time Line
Flywheel Module
DCAC
Long-term AC alternate source
UPS System
Basic Installation Sequence – Normal Operation
Rectifier AC/DC
Genset AC
Inverter DC/AC
Utility AC
Critical AC outputAutomatic
Transfer Switch
480 VAC DC
AC
VDC(flywheel and power converter)
Auxiliary Power(Protected AC source for flywheel controls and vacuum pump)
Bi-directional IGBT converter
Graphical Control
Interface
Remote Monitorin
g
Flywheel Module
DCAC
Long-term AC alternate source
ATS Dela
y
2 sec.
Gense
t Star
t
and r
eady
to
acce
pt lo
ad
6 sec.
ATS Transfe
r
UPS Syn
c and
Rectifi
er Walk
-in
2 sec.
Flywhe
el
Recha
rging
2 to 15 min.
Util
ity O
utag
e
Time Line
UPS System
Basic Installation Sequence – Genset operation
Rectifier AC/DC
Genset AC
Inverter DC/AC
Utility AC
Critical AC outputAutomatic
Transfer Switch
480 VAC DC
AC
VDC(flywheel and power converter)
Auxiliary Power(Protected AC source for flywheel controls and vacuum pump)
Bi-directional IGBT converter
Graphical Control
Interface
Remote Monitorin
g
Flywheel Module
DCAC
Long-term AC alternate source
ATS Dela
y
2 sec.
Gense
t Star
t
and r
eady
to
acce
pt lo
ad
6 sec.
ATS Transfe
r
UPS Syn
c and
Rectifi
er Walk
-in
2 sec.
Flywhe
el
Recha
rging
2 to 15 min.
Util
ity O
utag
e
Time Line
The Principles of Kinetic Energy
KE ~ m (rpm)² (for rotational motion)
Low Speed • More mass means more energy• Double mass = double energy• “Low-speed” 1800 to 8000RPM
High Speed• More energy by higher rpm• Double rpm = quadruple energy• “High-speed” 36000 to 55000RPM
VYCON - Next Generation Design High speed - 36900 RPM• Air cooled• Small steel alloy flywheel mass (120lbs)• Annual service requirement
• 15 mins. - No down time
• High power density (300kVA)• Full recovery from drop out event• OSHPD seismic certification • Scalable
Flywheel Technology Evolution
High Speed, Steel Flywheel Module Permanent Magnet Motor-Generator
Magnetic Levitation
VDC – Simplified One Line
To UPS Battery Input
IGBT Power Converter
Magnetic LevitationController
Control Panel
Flywheel Module
Soft Start
DC Monitoring Motor Generator Controls
Power Conversion Module Controller
VDC and VDC-XE Module Layout
IGBT Bi-Directional Converter Module
Field Serviceable Vacuum Pump
DC – Disconnect Breaker
Mag LevitationController Module
Flywheel Module
VDC and VDC-XE at a GlanceMax Power Rating:
VDC : 215kW VDC-XE: 300kW Max Energy Storage Rating:
VDC : 3000kW secs @ 100kWVDC-XE: 4000kW secs @ 100kW
Foot Print / Weight: 6.25 sq ft / 1554 lbs
Standard features include:DC Breaker included4 line displayTop or bottom cable entry
Options include:Mod BusTouch ScreenAuto RestartCustomer interface boardOSHPD Seismic Certification
30”
30”
73.7”
Customer Interface
Standard 4-Line LCD Display
STATUS OPERATING PARAMETERS EVENT HISTORY START/STOP UNIT
Communications
Customer Interface Board (CIB) Option
MODDBUS (RTU Protocol) Interface Option
More Options…
AUTO-RESTART OPERATION
OSHPD - SEISMIC CERTIFICATIONOffice of Statewide Health Planning and Development (State of California)
Battery Free UPS System
ATS
Back up
Generator
Utility
208 – 600V AC
Critical Load
Automatic Transfer Switch
DC Bus
VYCON FlywheelDC Energy Storage
UPS
Configurations
Rectifier
AC/DC
Inverter
DC/AC
VYCON DC Flywheel + Battery Hardening
ATS
Back up
Generator
Utility
208 – 600V AC
Critical Load
Automatic Transfer Switch
DC Bus
VYCON FlywheelDC Energy Storage
UPS
Configurations
Rectifier
AC/DC
Inverter
DC/AC
+ -
+ -
+ -+ -
VDC XEB HybridDC Energy Storage
VDC XEB Overview
Integration of VYCON’s highly reliable flywheel technology with a High Rate Discharge VRLA battery
Predictable and reliable backup power / energy storage for critical loads
Extended system design life and warranty
VDC XEB Features - Benefits - Value
Feature / Function Benefits ValueVDC XE High Speed Flywheel
‐
Primary
source of back up power
First line of defense
– (EPRI 98%
outages < 10 seconds)
Increased energy availability
and reliability
Full magnetic levitation system
‐
Provides 100% levitation & sustains
flywheel rotor during operation
No bearing replacementEliminates cost
and downtime
associated with bearing
changes
Smart Monitoring ‐
Flywheel
“walks‐in”
the battery
Mitigation of Coup de fouet
/
whiplash and extends battery life
Reduces cost
and frequency
of battery replacement
Reliability (VDC XE) ‐
Reduced number
of cycles
and frequency of battery
discharge
Extends battery life Low cost of ownership
Integrated Breaker / Single Power Feed Ease of installationLowers cost and footprint of
installation
98% of disturbances < 10 sec.
10
Coup de fouet = Whiplash
Float Voltage
Grid Disturbance
0 20
Time (Seconds)
VDC XEB System Operation-Battery Hardening
Flywheel provides voltage support eliminating battery whiplashIncreasing battery life, Improving UPS reliability & Reducing serviceReduces number of batteries cycles
UPS
DC
Bus
Vol
tage
(dc)
Gen
Block Diagram
VDC XEB integrated flywheel & battery system
VYCON VDC XE FlywheelVYCON VDC XE Flywheel Technical and Reference MaterialTechnical and Reference Material
02
4
6
12
8
10
Utility Outage
ATS Signal Genset Start
Genset Start, Voltage Stabilizes
UPS Synchronizes with Genset
UPS Rectifier walk-in, Starts to recharge energy storage 10 to 12 seconds typical
Continuous Power Sequence
Seconds
Run Times – General Reference
40 60 80 100 120 160 225 275 450 550 750 1100
1 99.8 67.0 50.3 40.3 33.6 21.9 11.7 6.4
2 80.0 65.0 48.8 34.8 26.6 11.3 6.2
3 72.3 51.5 42.2 23.2 16.8 8.54 Run Time in Seconds 55.6 34.1 26.1 16.0 6.0
5 34.8 23.0 11.7
VDC Run Times*UPS Output Power Rating (kVA)
Number of Flywheels
40 60 80 100 120 160 225 275 450 550 750 1100
1 133.3 88.9 66.7 53.3 44.4 32.9 20.5 14.12 102.4 85.3 64.0 45.5 37.3 19.7 13.6 6.73 95.0 67.6 55.3 33.6 26.3 16.2 6.94 Run Time in Seconds 72.9 44.6 36.5 25.3 13.35 45.6 33.3 20.0
VDC‐XE+ Run Times*UPS Output Power Rating (kVA)
Number of Flywheels
*Back-up times are typical using .9 Output Power Factor, 80% Full Load Rating, 96% Inverter Efficiency
Run Time CalculatorParameter Value Unit
UPS kVA Output 400 kVA
Load Power Factor 0.80 number
UPS kW Output 320 kW
Inverter Efficiency 96 %
Flywheel kW Output 333 kW
Rectifier Walk-in Time 0.0 seconds
Percent Load on UPS 100 %
Quantity of Flywheel units 2 number
Minimum Run Time Required 18.0 seconds
20.1 seconds @ 100 % Load
27.7 seconds @ 80 % Load
30.0 seconds @ 75 % Load
38.4 seconds @ 60 % Load
46.1 seconds @ 50 % Load
57.6 seconds @ 40 % Load
92.2 seconds @ 25 % Load
ADD VDC seconds @ 100 % Load
ADD VDC seconds @ 80 % Load
19.9 seconds @ 75 % Load
29.4 seconds @ 60 % Load
35.2 seconds @ 50 % Load
44.0 seconds @ 40 % Load
70.1 seconds @ 25 % Load
4 - 40
VDC XE (300kW)
Variable Input Parameters
0 - 15
25 - 100
1 - 8
VDC (215kW)
Available Run Time
Range
40 - 1100
0.7 - 1
Calculated
80 - 100
Calculated
Average cost of unplanned
shutdown $250 ‐$680K
Average cost of unplanned
shutdown $250 ‐$680K
ROI Calculator
VYCON DC Flywheel Success Stories
SUMMARY
Lowest cost of ownershipOSHPD listed / Certified20 year life spanHigh efficiency- 99.4% Small footprintMinimal maintenance
Green technologyHigh reliability / predictabilityHigh power densitySimple installationNo bearing changes
Vycon VDC Energy Storage System
http://www.vyconenergy.com/
Thank you