Tidal Power
Ocean Space Tidal Power Generation System
Technology Development
Tital Power Generation System for River & Channel
Tidal power generation is possible for weir at power plant or waterway channel through which water flow has almost uniform one-way velocity at all times of a year. For collecting this type of hydro kinetic energy, the pilot tidal power generation system of 20kW was installed and successfully tested in the weir of Samcheonpo power plant at 2009 by Ocean Space Inc. as follows:
|
Turbine |
Diameter |
Material |
Max. Power Coefficient |
||
|---|---|---|---|---|---|
|
2.58m |
Blade-FRP Hub-SUS316L |
0.49 |
|||
|
Generator |
Type |
Output |
Gear Ratio |
RPM |
|
|
PMSG |
20kW |
1:10 |
600rpm |
||
|
System |
Power Conversion |
Converter+PWM Inverter |
|||
|
Load |
Thermal 20kW |
||||
|
Structure & Maintenance |
Steel Structure |
- Emergency Uplift System - Repair Cart |
|||
|
|||||
Future Plan of River & Channel System
Condition : Width of Weir 30m, Water Depth 4m, Turbine Diameter 2.58m
Number of Installations : Transverse 6~7sets × Longitudinal 15rows = Total 98sets
Prediction of Output Power
|
Flow Velocity(㎧) |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
3.5 |
|---|---|---|---|---|---|---|---|
|
Power of 1set(kW) |
0.12 |
0.96 |
3.25 |
7.71 |
15.06 |
26.03 |
41.23 |
|
Power of 1row (kW, 1row=7sets) |
0.84 |
6.72 |
22.75 |
53.97 |
105.42 |
182.21 |
289.31 |
|
Total Power (kW, 98sets) |
11.76 |
94.08 |
318.5 |
755.58 |
1,475.88 |
2,550.94 |
4,050,34 |
Floating Tidal Power Generation System at sea
Tidal power generation system can be explicitly predictable and optimally designed based on the rated flow velocity. West and south sea in Korea have many favorable places for tidal generation due to high tidal variation. To verify the efficiency of the developed system, the prototype of 100kW was installed and tested at Geumo-sudo of Yeosu by Ocean Space Inc. in 2010. The blade pitch was changed for 0°~180° in order for the turbine to operate in both tidal directions. All components of the system were assembled on land, therefore, the procedure of installation could be simplified and completed within 3 days only.
|
Turbine |
Diameter |
Material |
Max. Power Coefficient |
||
|---|---|---|---|---|---|
|
8.0m |
Blade-FRP Hub-SUS316L |
0.50 |
|||
|
Generator |
Type |
Output |
Gear Ratio |
RPM |
|
|
PMSG |
100kW |
1:45 |
900rpm |
||
|
System |
Power Conversion |
Converter+PWM Inverter |
|||
|
Control |
Pitch Control System & Monitoring on Land by Wireless Communication |
||||
|
Structure & Maintenance |
Steel Structure & Pontoon + Tension Leg Wire + Concrete Anchor |
- Uplift Winch System - Top Deck(10m×13m) - Underwater Generator & Natural Cooling |
|||
|
|||||
Main Features of occean Space Tidal Power Generation System
Stable Power Generation in High Efficiency
Three Blade Horizontal Axis Turbine
MPPT Converter Control System
Monitoring System on Land by Wireless Communication
Floating Structure with Tension Leg Mooring
Pump Ballast System for Easy Installation
Uplift Winch System for Easy Maintenance
