what makes 400vdc to an attractive power alternative for...
TRANSCRIPT
-
What makes 400VDC to an attractive power alternative for data centers? 2014-09-04 Data Center Forum, Moscow Marek Szpek Business Development EMEA
© Emerson Network Power AB 2012. All rights reserved throughout the world. The information in this document is the property of Emerson Network Power AB. Except as authorized by Emerson Network Power AB in a written document, those receiving this document shall keep all the information contained herein confidential, and shall protect the same from disclosure and dissemination to third parties. While every precaution has been taken to ensure accuracy and completeness in this document, Emerson Network Power AB assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions. This information in this document is subject to change without notice.
-
Selection of 400V DC Sites
Duke Energy 380V DC
Univ. California 380V DC
Intel 380V DC
China Telecom 240V/380V DC
SAP 380V DC
Syracuse University 380V DC
China Mobile 380V DC
Netpower Labs AB (several sites)
350V/380V DC
Green.Ch 380V DC
France Telecom 380V DC
NTT Group (several sites)
380V/400V DC
France Telecom 380V DC
European Telecom 380V DC
North American Telecom 380V DC
Several Japan Sites 300V/350V DC
Nextek 380V DC
Telecom Data Center Buildings / Microgrids Emerson power equipment
Visa 380V DC
OEM 380V DC
Clustered Systems 380V DC
IBM Singapore
380V DC
Vendor participants include: HP, IBM, EMC, Fujitsu, Hitachi, NEC
2
© 2014 Emerson Network Power Intellectual Property. All rights reserved
-
Availability in 400VDC and AC-UPS
Mains failure; battery is connected directly to the load 28 x 12V battery blocks
Simple control scheme, only one parameter (DC voltage) Battery provides a hard source for safe & reliable fault clearing (high batt. current at short circuit =short clearing time)
Mains failure; Battery supplies power only if no malfunction on inverter or static switch 40 x 12V battery blocks Complex control scheme; voltage, frequency, phase, waveform Soft source makes fault clearing less effective (longer clearing time at short circuit due to lower inverter output current vs. batt. curent)
3
© 2014 Emerson Network Power Intellectual Property. All rights reserved
-
Basic differences in DC and AC mind set and approach DC-UPS AC-UPS
Load AC AC
Load
- N+1 - Battery = Safety Line - Any unit to be replaced in on-line operation - Availability in primary focus
- 2N (single big system) - Grid/Diesel = Safety Line - By-pass to AC at fail or maintenance - Redundancy at maintenance/failure in focus
4
© 2014 Emerson Network Power Intellectual Property. All rights reserved
-
Basic UPS Module configurations
5 Source:
© 2014 Emerson Network Power Intellectual Property. All rights reserved
-
BICSI, Class F1 and Class F2 with DC-UPS
6
Class F1 – Single Power Path Class F2 – Redudant Components
© 2014 Emerson Network Power Intellectual Property. All rights reserved
-
BICSI, Class F3 and Class F4 with DC-UPS
7
Class F3 – Dual Path: Concurrently Maintainable Class F4 – Dual Path: Fault Tolerant
© 2014 Emerson Network Power Intellectual Property. All rights reserved
-
Cascade Effect in Power Consumption
Power Consumption: 100 W System Load
8
Server fans 15W
UPS +PDU 20W
PSU 50W
Load 100W
VR 20W
Room cooling system 70W
Total 275W
Source: Intel Corporation PUE =
185W
Total Facility Energy
IT Equipment Energy 275W = = 1.5
IT load
(12V/5V,
-
9
Emerson Network Power, Energy Systems; Proprietary and Confidential Information.
End-to-end efficiency comparison
AC-UPS efficiency 50% load, no isolation transf. a. Double Conversion, market average 92-94% b. Emerson Trinergy, Double Conversion op. eff. 95,6%
230VAC Server
Total distribution, average efficiency 98%
AC/DC efficiency, market average 90%-93%
End-to-end efficiency, double conversion: Market Average 0,93 x 0,980 x 0,915 = 83,4% Emerson Trinergy 0,956 x 0,980 x 0,915 = 85,72%
AC
DC (400V)
DC-UPS efficiency 96,5% Total distribution average eff. 99% DC/DC efficiency 91%-95% (50% load, mains isolated)
End-to end efficiency 0,965 x 0,99 x 0,93 = 88,85%
Total saving 5% - 8% with 400VDC (cascade effect, mains isolation)
-
10
Emerson Network Power, Energy Systems; Proprietary and Confidential Information.
N+1 redudancy in DC attractive alternative to 2N
A
B
- High overall availability
- Power available even if single unit (rectifier, controller, distribution c.b.) fails - Dual power distribution path A and B
- If controller fails the rectifiers operate at their default setting
-
11
Emerson Network Power, Energy Systems; Proprietary and Confidential Information.
More simple site lay-out with 400VDC
-
StarLine DC Solutions, 400VDC Busway from Universal Electric
12
415V AC @ 400A = 287kVA/258kW (0.9pf) 380V DC @ 400A = 152kVA X 2 = 304kVA/Kw (1.0pf)
© 2014 Emerson Network Power Intellectual Property. All rights reserved
-
400V Power Chain Infrastructure Availability
DC Power System
DC Load Breaker Rack PDU
Cord Connector
Emerson ABB Eltek Delta*
ABB Carling Schneider Nader Siemens
API Technologies ServerTech Echola Systems* Delta* Fujitsu*
Anderson Power Products Hubbel Rong Feng / Delta Fujitsu*
* Pre-production products or in development
400V DC Ecosystem Has Progressed Significantly Over Last Year
Distribution Busway
Univ Elec / Starline PDI* Eaton* Siemens*
ICT Load
HP – DL, ML, SL rack mount servers IBM – some X and Z series; additional products underway Juniper – EX.. And GFX.. switches Ericsson* – development underway Cisco* – UCS platform compatibility underway
13
© 2014 Emerson Network Power Intellectual Property. All rights reserved
-
400V DC Server Availability HP
‒ HP sees 400V DC market potential and is investing in compatible products ‒ HP now offers 400V DC input in their common slot power supply for rack mount devices:
ProLiant (DL, ML, SL), Storage, etc; support for c7000 blade by end of 2014 ‒ Next generation (G9) of products will also include 400V power supplies
(500, 800, and 1200W) for 45+ Server, Storage and Switch products
IBM: ‒ Some X and Z series available today; Flex blade center support and rack mount common
slot power supplies in 2014
Juniper: EX and QFX series top of rack switches with 850W common slot power available
Huawei: working on complete IT portfolio
Cisco: UCS platform compatibility in development
NEI: catalog products available today, 1U and 2U servers
Supermicro: 2 servers models available for trial
Dell: early stages of 400V investigation
Increased Availability of 400V DC Loads 14
© 2014 Emerson Network Power Intellectual Property. All rights reserved
-
120kW 400V DC Power System Highlights: 120kW base system; bulk or integrated output 97% peak efficiency 15kW hot-swappable rectifier modules High-Resistance Midpoint Ground
configuration cUL/CE 60950 Listed Designed to meet NEBS
Features: Expand with additional 120kW modules
(2nd phase) Available battery cabinets Top or bottom rack cable entry 2000mm x 600mm x 1100mm footprint
B
A
B
Bulk Output Distribution
to feed A and B
Distribution Panels or
other Output
Rectifiers
AC Input
Controls
Power Module
Distribution Module
15
© 2014 Emerson Network Power Intellectual Property. All rights reserved
-
400V DC Summary • 400V DC power reduces complexity and increases availability
compared to traditional AC power
Lower TCO
– N+1 good enough vs. 2N in many cases (fault tolerant modularity)
– No bypass/STS/paralleling equipment
– No UPS output switchboard
Higher overall efficiency
• 400V DC Eco-system continues to develop
400V DC Power Technology Improves Power Architectures in Data Center & Telecom Sites
16
© 2014 Emerson Network Power Intellectual Property. All rights reserved
What makes 400VDC to an attractive power alternative for data centers?Selection of 400V DC SitesAvailability in 400VDC and AC-UPSBasic differences in DC and AC mind set and approach Basic UPS Module configurationsBICSI, Class F1 and Class F2 with DC-UPS BICSI, Class F3 and Class F4 with DC-UPS Cascade Effect in Power �ConsumptionEnd-to-end efficiency comparisonN+1 redudancy in DC attractive alternative to 2NMore simple site lay-out with 400VDCStarLine DC Solutions, 400VDC Busway from Universal Electric400V Power Chain Infrastructure Availability400V DC Server Availability120kW 400V DC Power System 400V DC Summary