data center solutions - bonitron

Data Center Solutions

Typical Data Center

VFDs in Data Centers

Bonitron Solution(Uninterruptible Power for Drives)

Question & Answer

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Presentation Outline

Typical Data Center

3Drive/Control Cabinet

Air Handler

Heat ExchangerCooling Tower

Water-cooled Chiller

Typical Data Center

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Typical Data Center

VFDs inData Centers


Question & Answer

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Presentation Outline

VFD Advantages

• Save Power• Reduce Maintenance Costs

Change Speed on Demand

• Reduces stress during starting and stopping

Eliminates Water Hammer

• Allows remote monitoring

Preventative Maintenance

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Variable Frequency Drives

VFD Savings on Pumps

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0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

0% 20% 40% 60% 80% 100%

RPM

Pump Power Curves

Flow

Pressure

Power

Flow Pressure Power

VFD Power Quality Problems

• Filter capacitors drain almost immediately

No energy storage

• 6 pulse front ends have no boost capability

No sag correction built in

• Kinetic buffering causes speed changes

Cannot operate at full load and power

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VFD PQ Effects on Data Centers

• Time delay before chiller can be restarted

• Servers can quickly overheat

• Shutdown data center

Chiller Loses Power

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Drive-trips take too long to restart chillers

Solutions Currently in Use

• Motor Inertia/Kinetic Buffering• Flying restart• VFD Active Front End• AC Line Sag Corrector

Sag Correction

• UPS• DC Bus Uninterruptible Power For

Drives

Outage Protection

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VFD and UPS Systems

• VFD input reactance interacts with UPS inverters• Reduced efficiency due to extra conversions• Extra point of failure

VFDs not recommended with UPS Systems

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Drive Topology

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Double Conversion UPS

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Series Connection:1) Two extra conversions2) Lower efficiency3) Extra point of failure

Bonitron Uninterruptible Power for Drives

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Parallel Connection:1) Less conversions2) Higher Efficiency3) Higher Reliability

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Bonitron Solution

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Typical Data Center



Question & Answer

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Bonitron UPD Results

Drive Output

DC Bus Voltage

AC Line Voltage

Without Ride-Thru With Ride-Thru

Drive Not Affected by Outage

Bonitron UPD Schematic

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Battery


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Ultracapacitor


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Bonitron UPD Systems

Outage Protection

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Energy Storage Options

UltracapacitorsBatteriesElectrolytic Capacitors

180v module 48v module 12v battery700v assembly

Up to ½ second full outage

• Cost effective for short outages

• Low HP drives

Up to 3 seconds full outage

• Cost effective for short outages

• High HP drives

Up to 15 minute full outage

• Cost effective for long outages

• All drives

Energy Storage Options

Bonitron Ultracapacitor UPD Systems

2323

1-Second Full Outage

6kW

1-Second Full Outage150kW

1-Second Full Outage150kW

Additional Products

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Question and Answer

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• Call us at615-244-2825

• Or email [email protected]

Questions?

Typical Data Center



Questions

Bonitron Contacts

Engineering & Sales Contacts

Charlie Adkins, P.E.•Vice President•[email protected]•Ext. 109

Tim Smith•Sales Manager•[email protected]•Ext.103

Tommy Tyler•U.S. Distribution Manager•[email protected]•Ext. 104

Derek Lovett•Inside Sales•[email protected]•Ext. 112

Bonitron, Inc.521 Fairground CourtNashville, TN 37211

Tel: 615-244-2825Fax: 615-244-2833Web: www.bonitron.com

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data center solutions - bonitron

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