Modularity in UPS Design What does it Mean, What are the Pro s and Con s?

Transcription

1 Modularity in UPS Design What does it Mean, What are the Pro s and Con s? Mike Elms Technical Manager Uninterruptible Power Supplies Ltd

2 Modularity in UPS Design What does it Mean, What are the Pro s and Con s? From Inefficient, Large- Footprint Transformer UPS Standalone UPS Technology Innovation To Efficient, Small-Footprint Transformerless UPS Modular UPS Technology Innovation

3 Modular Definition of Modular? Definition of modular: Adjective Employing or involving a module or modules as the basis of design or construction Oxford English dictionary

4 Modular Interpretation of Definition of Modular? 200kVA N kw 100 kw 33 kw 33 kw 33 kw Redun dant Capaci ty 2 x 200kVA 3 x 100kVA

5 Modular Interpretation of Definition of Modular? Bypass Switch UPS 1 UPS 2 UPS 3 UPS 4

6 Modular Interpretation of Definition of Modular? Power Modules Static Switch Rectifier

7 Modular Interpretation of Definition of Modular? Power Modules Static Switch Rectifier

8 UPS Evolution UPSL Definition of Modular? Bypass input Rectifier input = = = = Critical Load Each module is a complete UPS: IGBT rectifier and inverter Control logic and display Battery converter Static bypass switch

9 UPS Evolution UPSL Definition of Modular?

10 Definition of Modular De-Centralised Parallel Architecture Rectifier input Bypass input Designed to distribute the UPS Hardware and Software into modules in order to reduce the single points of failure Dual feed rectifier / static switch No common static switch No common control logic = Control logic UPS module = Control logic UPS module = Control logic UPS module = = = DISPLAY = = = DISPLAY = = = DISPLAY Output to the critical load

11 Selecting a UPS N System = N = 200 kw UPS = Load

12 200kW 200kW Selecting a UPS N + 1 System Standalone Modular A N + 1 B = = 200kW kw kw 100 kw Load = 200kW A = B = 200 kw Load = 200kW N+1 = 200kW + 200kW N+1 = 200kW + 100kW

13 Load = 200kW Selecting a UPS N + N or 2N System UPS = Load Standalone Modular N N A B = 100 kw 100 kw = A = B = 200 kw 2N = 2 x 200kW 2N = 2 x 200kW

14 Load = 200kW Load = 200kW Load = 200kW Selecting a UPS 2(N+1) System Standalone UPS = Load Modular A N + 1 N + 1 B A B 200 kw 200 kw 200 kw 200 kw = = 150 kw 150 kw 150 kw 150 kw 200 kw 100kW 200 kw 100kW A = B = 200 kw 2(N+1) = 2(200kW + 200kW) 2(N+1) = 2(200kW + 100kW)

15 UPS System Design Criteria Static UPS System: 200kVA N+1 Battery Autonomy: 15 mins

16 200KVA N+1 Standalone Topology (2 x 200kVA) Bypass Switch A B UPS 1 UPS 2 Load = 200kVA A = B = 200 kva

17 200KVA N+1 Standalone Topology (3 x 100kVA) Bypass Switch A B C UPS 1 UPS 2 UPS 3 Load = 200kVA A = B = C = 100 kva

18 200KVA N+1 Standalone Topology (5 x 50kVA) Bypass Switch 50kVA MODULAR UPS 1 50kVA 50kVA 50kVA Load = 200kVA 5 X 50kVA 50kVA

19 200KVA N+1 Modular Topology (3 x 100kVA) Bypass Switch Spare MODULAR UPS 1 Spare 100kVA Load = 200kVA 3 X 100kVA 100kVA 100kVA

20 200KVA N+1 Standalone Battery Options 2 x 200KVA

21 200KVA N+1 Standalone Battery Options 3 x 100KVA

22 200KVA N+1 Standalone Separate Battery Options

23 200KVA N+1 Standalone Separate Battery Options

24 200KVA N+1 Standalone Battery Options Standalone Standalone 200 KVA (N+1) Standalone 200 KVA (N+1) 200KVA 200KVA 100KVA 100KVA 100KVA Battery = 200KVA per unit = 400KVA in total Battery = 100KVA per unit = 300KVA in total

25 200KVA N+1 Standalone Battery Options Modular Battery = 50KVA per unit = 250kvA in total Battery = 100KVA per unit = 300kvA in total

26 200KVA N+1 Standalone Footprint

27 UPS System Design Ease of Repair- Problem off Site! HOT SWAP Service Plan 4 Hour Response Spare Module Defective Module Identified Defective Module Replaced = <30 mins <5 Hours Max Elapsed Time Standalone Service Plan 4 Hour Response Spares Kit Defective UPS Identified Diagnosis & Fix 1, 2 6+ Hours? 10+ Hours? 27

28 UPS System Design Rightsizing oversized power Load curve? start year 1 year 2 year 3 year 4 Modularity in design allows the power protection capacity to be added when needed to meet the existing/actual demand, instead total up front deployment.

29 UPS System Design Hot Swap Modularity Safe Removal and/or Insertion of Modules No Risk to Critical Load No Power Down Required Simple Power Upgrade Right-Sizing to Match Load

30 UPS System Design Low MTTR = High Availability RELIABILITY Measure of ability for a system to run without failures Mean time between failures (MTBF) Mean time to fail (MTTF) SERVICEABILITY The easiness and speed at which maintenance and service can be performed Mean time to repair / recover (MTTR)

31 UPS System Design Low MTTR = High Availability Standalone 6nines % Availability Standalone 2 x 400 kw (1+1) Configuration Modular, 4 x 100 kw (3+1) Configuration Availability = MTBF UPS / (MTBF UPS + MTTR UPS ) MTBF UPS 600,000h 400,000h MTTR UPS 6h 0.5h Availability % (5 Nines) % (6 Nines) 10x Availability Improvement MTBF : Mean Time Between Failures MTTR : Mean Time To Repair

32 Key Points to Take Away 1. Definition of Modular UPS - De-Centralised Parallel Architecture 2. Battery Options for Standalone and Modular Capex and Opex 3. Footprint UPS/Switchgear/Battery System 4. Rightsizing/Scalability/Flexibility 5. Ease of Servicing/Repair = High Availability 6. Modular technology is available for large data centres now, with 100KVA modules and 500KVA building blocks

33 Thank you for your time, any questions? Visit us at Stand L31 & in the Green Data Centre