VECO-Drive, Electro-MechanicVariable Speed Planetary Gear

February 1, 2018

Gas-Electric Partnership

Houston, TX

VECO-Drive | Roland Hoet | 2018-02-01

The VECO-Drive

VECO-Drive | Roland Hoet | 2018-02-01

VECO-Drive

Low voltage

frequency converter

Transformer

Compressor/Pump

Constant speed

main motor

Drive Train Set-Up

Voith

scope of

supply

VECO-Drive | Dr. Martin Tilscher | 2017-12-12

Hydrodynamic

Couplings

> 15,000 units

Geared

Hydrodynamic

Couplings

> 10,000 units

Technology Leader in Variable Speed Drives for

Compressors & Pumps in Power and Oil & Gas

Hydrodynamic

Variable Speed

Planetary Gears

> 600 units

Electro-Mechanic

Variable Speed

Planetary Gear

VECO-DriveVoreconRK-GVSDV/S Cplg

VECO-Drive | Roland Hoet | 2018-02-01

The Planetary Gear

Speed Control

PI

PS

PO

Vorecon

• variable speed planetary gear

• hydrodynamical superimposition

VECO Drive

• variable speed planetary gear

• electrical superimposition

13-20%

The Power Splitting DNA – Inspired by Vorecon

VECO-Drive | Roland Hoet | 2018-02-01

80-87%

VECO-Drive – Operating Map

VECO-Drive | Roland Hoet | 2018-02-01

Generator Mode

Output speed [rpm]

Ou

tpu

t to

rqu

e [

Nm

]

Superimposing speed

Motor Mode

Energy Recuperation in Generator Mode

reversal point

VECO-Drive – Design Specification

VECO-Drive | Roland Hoet | 2018-02-01

Modular Series Design

Rated output power4 – 15 MW

up to 20 MW on demand

Input speed 1500 or 1800 rpm

Rated output speed 5000 – 15000 rpm

Speed regulating range70 – 105 % (compressors)

50 – 100 % (pumps)

Soft motor start (grid protection)

VECO-Drive Efficiency

Saving Operating Cost with VECO-Drive

VECO-Drive | Roland Hoet | 2018-02-01

70%

75%

80%

85%

90%

95%

100%

60% 70% 80% 90% 100%

Eff

icie

nc

y

Output speed

VECO-Drive VFD

*) VECO-Drive system including:

• Planetary gear

• Servo motors

• Forced cooling

• Lube oil pump

• Low voltage VFD for servo motors

• Transformer

**) VFD System including:

• Parallel shaft gear

• Forced cooling

• Lube oil pump

• Full scale medium voltage VFD

• Transformer

+1.7%+2.3%

+1.3%

*) **)

Efficiency Comparison with Full Scale VFD

Full Scale In-Line MV-VFD

VECO-Drive | Dr. Martin Tilscher | November 2017

14 MW

MV VFD15m², 38m³

10 tons, ƞ 97%

15 MVA

Transformer

15m², 65m³

36 tons, ƞ 99%

13 MW

Motor

12m², 36m³

30 tons, ƞ 97%

12.5 MW

Gear

12 MW

Compressor

1.6m², 2.7m³

6 tons, ƞ 98.5%

44m², 142m³

82 tons, ƞ 91.8 %∑

VECO-Drive | Roland Hoet | 2018-02-01

ƞ 91.8 %

Space requirements

44 m², 142 m³

Weight

Drive Train Efficiency

82 tons

Full Scale In-Line MV-VFD The VECO-Drive

ƞ 93.5 %

Space requirements

31 m², 65 m³Weight

Drive Train Efficiency

52 tons

Comparison made on a typical 12 MW compressor application; 13 MW MV-VFD.

Additional Veco-Drive Benefits

VECO-Drive | Dr. Martin Tilscher | November 2017

• Installation of a lower power (air cooled possible) VFD is

much less complex and easier to install and maintain

• When the VFD needs replaced in the future, you are only

replacing 13-20% of the installed drive system power

• The option for a low power MV-VFD is possible for the

servo-motor drives if customers prefer MV. (potentially

eliminates another transformer)

• The Veco-Drive is capable of continuous “slow roll” control

if required for maintenance or cooling.

VECO-Drive | Roland Hoet | 2018-02-01

Voith Prototype test machine:

• Input speed: 1800 rpm

• Output speed: 7320 – 12,200rpm (60 – 100 %)

• Output power: 5.5 MW

• Servo motors: 2x 500 kW