Cool Drive Overview

Refrigerant Cooled Drives using a

Vaporizable Dielectric Fluid (VDF)

Parker AC890PX “Cool Drive”

• High Power AC Drive with advanced cooling• Ratings through 1.5 MW• Modular Design• IP52 standard• IP54 and greater available

(consult factory)

The AC890PX Cool Drive is an extension of the popular AC890PX series. By using Parker’s Advanced Cooling technology, the Cool Drive offers the highest power density available, meaning less floor space per kilowatt.

What is “CoolDrive”Extension of AC890PX with Advanced Cooling

• Increases power range

• Industry leading power density

• Increased reliability and lower risk

• High environmental protection

• Re‐uses majority of AC890PX electrical design

• Patented:  Patent on air cooled AC890PXProvisional patent on CoolDrive

• Future compact 3 phase modules for mobile applications

400KW – 1.5MW Cool Drive Dimensions

AC Fed Inverter 2500H x 2200W x 800D (mm)

DC Fed Inverter 2500H x 1200W x 600D (mm)

4Q AFE/Regen 2500H x 2800W x 600D (mm)

Note: Dimensions depend upon the IP rating selected and include a 100mm base and 400mm condenser.

Modular Design

• Pluggable Power Modules• Sealed modules can be replaced in minutes• Inverter Modules weigh under 50 pounds• Replaceable by local service staff• Freight-friendly, easily shipped around the globe• Packaged and designed to clear customs quickly

• Integrated bus system• Power wiring minimized• Keyed modules eliminate errors• No-leak dry break fittings eliminates coolant loss

Cooling loop for a single pluggable phase assembly

Light, easy to service, easy to ship = More Uptime!!!

Exploded view of cold plate

Pluggable coolantconnectors

IGBT module mountedon cold plate

Power connection plugs

What is Advanced, 2-Phase Cooling ? • Cooling using a Vaporizable Dielectric Fluid

• Uses Parker’s high density cold plate technology

• Simple high performance cooling loop

• Safe, hermetic system

• Environmentally conscious

• No CFC’s

• Zero ozone depletion potential (ODP)

• Fluid is low toxicity, nonflammable, non-corrosive

How does VDF cooling work?

VDF cooling loop with a pump, three cold plates and air cooled condenser.

Air Cooled CONDENSER

3 x cold plates

Pump

Vapor

Liquid

Increasing Power Densities & Heat LoadsInability to Cool Electronics with Current Technology

Customer Need & Function

Differentiated ValueDielectric fluid is Harmless to ElectronicsBetter Thermal PerformanceLow Maintenance vs De-Ionized Water

No Make-Up WaterNo Yearly System Tear DownNo Biocide AdditivesNo Freeze Protection RequiredNo Particle & Carbon filter replacement

Power Electronics Cooling

Parker Advanced Cooling Value Propositions• Increased drive power density• Better environmental protection

• IP54 and IP65 easily implemented• Higher ambient temperature tolerance

• Full rated power at 50+ deg C• Increased switching frequency with no derating• Higher reliability due to less thermal cycling of IGBT’s• No derating when paralleling• Self-contained cooling system.• Non-conductive refrigerant cooling

Water + High Voltage=

Best power density

Relative size comparisonTypical 1 megawatt DC Fed inverter @ 690V

Air Cooled Advanced CooledHeat exchanger may be located remotely

2000mm H x 1200mm W x 800mm D2000mm H x 2400mm W x 600mm D

Optional A

C Input Section

Value Proposition: Wind Power

Limited space for inverters inside nacelle

Advanced cooled technology = smallest

footprint in the industry

DFIG systems require separate field control – complex, costly generator

Small size enables full rated inverters

with simple PM synchronous generators

Inverters are in difficult to access locations – failures cannot be tolerated

Advanced cooling reduces thermal

cycling of IGBT’s, increased lifetime,

MTBF

Challenge Solution: PARKER

Value Proposition: Grid Storage

Severe environments

Self contained cooling power components

protected from ambient conditions

Limited space at sub-station

Smallest available footprint for 1 MW +

converters

Difficult accesslocations – failures

are costly to operation

Advanced cooling reduces thermal cycling of IGBTs,

Increases lifetime, MTBF

Challenge Solution: PARKER