THE GUIDELINE TO ELECTRIC PROPULSION

Transcription

1 THE GUIDELINE TO ELECTRIC PROPULSION STADT STASCHO is a No Loss AC drive that supplies sinusoidal voltage and current to the electric motor and back to the main switchboard. This gives very low harmonic disturbances without using models. STADT STASCHO is specially developed for marine propulsion systems, where it is used together with controllable pitch propellers. 1

2 Choosing The Best Electrical Propulsion System some of the reasons to choose electric propulsion. These systems can be designed in many ways, with the following main elements: Typically 3 to 6 in parallel HFO Dual Fuel Trifuel LCI, Cyclo etc. Perfect Harmony drives Podded thrusters with electric motor inside the pod, only in FP. enclosed report, based on our 30 years experience as a leading manufacturer of these systems. is also very important when it comes to overall propulsion 2

3 Technology has maintained the system easily with a very limited need for support from STADT. Also PGS is rooms where also the STADT drives are located. Big power transformers used by most other drive drives. converter, while PCC2 and 3 are independent power boosters for the inverter based on thyristors and many problems that is seen by other electric propulsion technologies on the market today. The electric propulsion plant onboard is designed and delivered by STADT, similar to what was earlier 3

4 Todays Electric Ship Technologies AFE Technology in AC drive 0 Power Train Losses 6 % 6 % 6 % Cooling Water Water Water Power Transformers Needed Yes No/Yes Yes Redundant Power Units Special Special Special High High High High High High Depending on Harmonic Filters Yes Yes Yes Regular Regular Regular Onboard Crew Skill Specialist Specialist Specialist Spares Globally Available No No No Weight of Drive System 100% 600% 100% 600% No No No Power Scalable No No No Regenerates Power to Grid No Yes No No. of Power Components in Line 1 Capacitors used in drive Yes Yes Yes Explosion Risk in Drive Yes Yes Yes CP CP/FP CP/FP CP/FP High High High 4

5 unscreened power cables. The losses are calculated from switchboard to the electric propulsion motor, through out the drive High losses and the use of power electronic in the inverters, normally force the designer of the drive system is interrupted, the propeller stops, or the drive unit explodes in the worst case. if the losses are low systems. There are two reasons why they are introduced. 2: To adapt the voltage level to be suitable for the drive unit, the reason why also AFE may use transformers. do not need the transformer for any of the 2 5

6 capacitor banks, IGBT inverters, control boards & systems, water cooling items etc. In total, up to A single failure will not stop the propeller. devices. switching, with a DC capacitor bank as the power source. working as it should. drive not likely to happen. 6

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8 STADT STASCHO pitch propeller control AC SUPPLY STADT STASCHO FC SIN 3.1 G1 V3 PATENTED BY STADT NO LOSS due to bypass switching, BP no need for transformers very low THD in main switchboard compact design air cooled no bearing currents easy cabling, unscreened can operate on very low generator capacity low voltage and medium voltage models Less components and bypass leads to a very rugged system, with very limited maintenance and increases reliability to a even higher level. PITCH RPM 8

9 STADT STASCHO AC Drive No Loss Sine Wave System What it typically looks like: Compact How it is arranged electrically in one of the STADT STASCHO models: How it is working in a propulsion system: 9

10 with Transformer What it typically looks like: HF Filter How it is arranged electrically: How it is arranged in a propulsion system: Explosion may easily be the result as well. Extensive use of capacitors. All electricity is transformed 10

11 What it typically looks like: How it is arranged electrically: OPTION How it is arranged in a propulsion system: Explosion may easily be the result as well. Extensive use of capacitors. All electricity is transformed 11

12 Technology Comparison Our 5. gen technology Competitors technology Competitors technology Huge differences: TRANSMISSION LOSSES ECONOMICAL LIFETIME MTBF, MTTR REDUNDANCY EMC, THD VOLUME, WEIGHT COMPLEXITY PWM RELATED ISSUES: Electric and acoustic noise Bearing currents Voltagestress in motors, Cabeling type AC versus DC systems Capacitors PRICE, SERVICE COST 12

13 STADT STASCHO Propulsion Some basic arrangements for full electric propulsion, base on diesel, LNG Twin screw - 6 generators - 2 electric motors - 1 main switchboard Twin screw PTI - 4 generators - 2 electric motors + 2 small as option - 2 main switchboards Twin screw Twin - 4 generators - 4 electric motors + 2 small as option - 2 twin input gearbox - 2 main switchboards Triple screw - 4 generators - 3 electric motors + small as option - 2 main switchboards - 4 generators - 2 electric motors - 2 main switchboards 13

14 STADT STASCHO Propulsion Some basic arrangements for full electric propulsion, base on diesel, LNG Single screw - 3 generators - 1 electric motors + small as option - 1 main switchboard Single screw Twin - 4 generators - 2 electric motors - 1 twin input gearbox - 2 main switchboards Single screw Tandem - 3 generators - 2 electric motors in tandem - 1 main switchboard Double ended - 4 generators - 2 electric motors - 2 main switchboards - 4 generators - 2 electric motors - 2 main switchboards 14

15 Electric losses reduced by up to 55 % Weight reduction of 80 % vs AFE Volume reduction of 85 % vs AFE THD and EMC eliminated 100 % Redundancy built in to all items Lifetime improved from 10 to > 30 years MTBF and MTTR improved several folds FUEL SAVINGS the best in class 15

16 STADT Ship References MV Nam Cheong AHTSV NCA80E 16 Vessels ABS Class, RP, DP2 STADT STASCHO DRIVES Fully integrated diesel electric propulsion system Installed Power 6000 kw MY Trimaran yacht 83x20m 1 Vessel DNV GL Class STADT STASCHO DRIVES Fully integrated diesel electric propulsion system Installed Power 5000 kw MS S WELL BOAT for live salmon 1 Vessel DNV GL Class STADT STASCHO DRIVES Fully integrated diesel electric propulsion system Installed Power 4800 kw MV Ocean Fortune SSV at Cemre for Vestland Offshore 2 Vessels BV Class, RP, DP1 STADT STASCHO DRIVES Fully integrated diesel electric propulsion system Installed Power 4000 kw 16

17 STADT Ship References MV THOR M Seismic Support Vessel operated by PGS 4 Vessels DNV Class, RP, DP, ICE 1A STADT STASCHO DRIVES Fully integrated diesel electric propulsion system Installed Power 4000 kw MV Econuri 1 Vessels Incheon Port Authority Guide Ship KR Class, RP STADT STASCHO DRIVES Fully integrated diesel electric propulsion system LNG and diesel electric operation, dual fuel Installed Power 1800 kw MV Sanco Spirit + Sanco Star 2 Vessels Seismic Research Vessel operated by PGS DNV Class, RP, DP2, ICE C STADT STASCHO DRIVES Fully integrated diesel electric propulsion system Installed Power 6600 kw MS Meløyfjord + MS Voldnes 4 Vessels + MS Stokke Senior + MS Harto Purse Seiners NMD Class STADT STASCHO DRIVES Fully integrated diesel electric propulsion system Installed Power 1920 kw 17

18 System Overview G1 ~ G2 ~ G3 ~ G4 ~ Low voltage or medium voltage DC DC M1 ~ M2 ~ 18

19 Notes 19

20 Fuel Savings STEALTH Features No Harmonics No Heat Emission No Transformers 690 V up to 30 MW 6600 V up to 80 MW V up to 150 MW 20