Bosch Rexroth. The Drive & Control Company Mechanical and Electrical Applications •Known in the Industry as the “Drive and Control” Company 3 12.06.2015 | Abteilung | © Bosch

12.06.2015 | DC-IA/SDM41 | © Bosch Rexroth AG 2015. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung,

Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

Bosch Rexroth. The Drive & Control Company

1

Designing for the future : Drive technology for

ROV / LARS Systems

Steve Smith

Regional Sales Manager – Bosch Rexroth Ltd

Email [email protected]

12.06.2015 | Abteilung | © Bosch Rexroth AG 2015. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe

sowie für den Fall von Schutzrechtsanmeldungen.


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Agenda

Introduction to Bosch Rexroth

Work Class ROV LARS System overview / working environment

Current drive technology

Advantages / Disadvantages

Future working environment / drive technology

Close



UK Company


•Bosch Rexroth is a wholly owned Subsidiary

of Robert Bosch

•Bosch Rexroth UK employs 347 people /

turnover £120million.

•UK Headquarters facilities situated in St Neots

Cambridge.

•Components, systems and modules for

Hydraulic, Mechanical and Electrical

Applications

• Known in the Industry as the “Drive and

Control” Company

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Underwater Remote Operated Vehicles

Developed in the

1960‘s by the US

Navy

3000 / 3500m

operating depth

Used extensively

in O&G.

The WCROV is

the

“ Worker Bee“ of the

sea

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5

Typical WCROV LARS system




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A Frame launched system Port & Stbd

systems

Images courtesy of IHC, TMT and

Lebus




Cursor / Moonpool launched system

Used in heavy

seas applications

ROV is launced via

cursor to avoid

damage in splash

zone

Images courtesy of MBARI &

Konsberg

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Common WCROV winch drive systemsWCROV

Drive system

Direct drive

Hydraulic Open / Closed loop

Slew ring / pinion

Hydraulic mechanical

Multiple direct drive

Multiple Gearbox with

hydraulic motor

Electro

mechanical

Multiple Gearbox with electric motor

Single gearbox with electric

motor




Hydraulic Direct drive

Single case rotating

radial piston motor

Closed loop 200Kw

HPU

9




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Multiple Hydraulic drives

Either driven:-

Direct through slew ring

Via gearboxes / hydraulic

motors.

Image courtesy of ACE Winches




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Electromechanical

Driven through a

slew ring

3 planetary gearbox

drives c/w electric

motor

Power cabin

containing inverter

drives, power

supplies and

controls

Image courtesy of Rapp Marine

12.06.2015 | | DCL/MKT© Bosch Rexroth AG 2015. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe



Benefits / Advantages / disadvantages

Drive system

Complexity Weight / size

Maintenance Suitabilityfor hire

Retrofitting enhancements

Future capability

Through LifeCosts

Investmentcosts

Direct drive hydraulic

Low Low High Good Excellent Limited todrive motor size

££ £

HydraulicmechanicalMultiple

Low Low High Good Excellent Excellent ££ £

Electro –mechanicalMultiple

Medium High Medium Okay Good Excellent £ ££

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The future working environment

Increased uptime

Increased sea state

capability

Operating in depths upto

/ over 4500m (GOM &

East Africa

Active heave control

(AHC) fitted as standard

Increased electrification

Energy regeneration

More automation

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Outlook: Electric AHC / Hydraulic AHC

(Secondary Control)




DC-Bus

Rectifier

AC-Power

m

=~

=~

MGB

Inverter

CapacitorsPrimary circuit

Secondary controlled drive

12.06.2015 | Jan Hein van den Broek | © Bosch Rexroth AG 2015. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung,



Smart Electric Energy storage (lifting)

AC grid

ResistorWinch

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Energy Storage

0,4 MW2,5 MW

2,0 MW0,5 MW2,5 MW

DC-bus




Smart Electric Energy storage (lowering)

AC grid

ResistorWinch

Energy Storage

0,4 MW2,5 MW

2,0 MW0,5 MW

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DC-bus




Smart Mechanical Energy storage (idle / feeding)

AC grid

ResistorWinch

0,4 MW2,5 MW

0,5 MW2,5 MW

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Energy Storage

DC-bus

2,0 MW

100%

10%




Smart Mechanical Energy storage (lifting)

AC grid

ResistorWinch

0,4 MW2,5 MW

0,5 MW

Energy Storage

DC-bus

2,0 MW

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100%

10%




Smart Mechanical Energy storage (lowering)

AC grid

ResistorWinch

0,4 MW2,5 MW

0,5 MW

Energy Storage

DC-bus

2,0 MW

100%

10%

19

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Title of presentation



Thank you for your attention!


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Bosch Rexroth. The Drive & Control Company Mechanical and Electrical Applications •Known in the Industry as the “Drive and Control” Company 3 12.06.2015 | Abteilung | © Bosch