scholarly journals Influence of the Number of Coil on the Accelerated-Type Wave Energy Generation System

2021 ◽  
Vol 252 ◽  
pp. 02079
Author(s):  
Hu Chen ◽  
Zhifei Ji ◽  
sheng Hu ◽  
Min Lin
Keyword(s):  
Power Generation ◽  
Energy Conversion ◽  
Wave Energy ◽  
Electrical Energy ◽  
Wave Power ◽  
Linear Wave ◽  
Wave Energy Conversion ◽  
Generation System ◽  
Power Generation System ◽  
Wave Power Generation

This paper proposed a pulley-buoy accelerated type linear wave power generation system, and verifies its feasibility and effectiveness through experiments. Compared with traditional three-phase wave energy converter, the process of energy transfer was cancelled in the pulley-buoy accelerated type linear wave power generation system, wave energy was converted into electrical energy through the movement of float directly. In the system, the pulley assembly increased the velocity of the float and the generating capacity of the linear generation system, thereby increasing its conversion efficiency. In the experiment, an undersized pulley-buoy accelerated type linear wave power generation system and a swing wave-making system were built in the laboratory. The experiment explored the influence of the number of the stator coil on the power generation performance of the system, and results showed that within the scope of this research, increasing the stator coils to a certain extent could effectively raise the efficiency of wave energy conversion and improve the generation performance of the pulley-buoy accelerated type linear wave power generation system. This research provides valuable experience for the actual application and effective operation of wave energy conversion system.

scholarly journals Influence of Buoy Size on Accelerated Wave Power Generation Device

2021 ◽  
Vol 271 ◽  
pp. 01023
Author(s):  
Hu Chen ◽  
Zhifei Ji ◽  
Yusheng Hu ◽  
Min Lin
Keyword(s):  
Power Generation ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
Wave Energy ◽  
Energy Conversion Efficiency ◽  
Wave Energy Conversion ◽  
Generation System ◽  
Power Generation System ◽  
Wave Energy Conversion Efficiency ◽  
Power Generation Performance

This paper proposed a pulley-buoy accelerated wave energy linear power generation system, and the feasibility and effectiveness of this system were verified through experimental research. Compared with the traditional wave energy power generation system with three-stage energy conversion links, the pulley-buoy accelerated wave energy linear power generation system omits the intermediate energy transfer and conversion link, and realizes the direct gain of electric energy from the buoy movement caused by wave, and by introducing the pulley combination, the movement speed of the buoy is enlarged, the power generation of the linear power generation system is increased, thereby the wave energy conversion efficiency of the system is improved. Under laboratory conditions, a small-size pulley-buoy accelerated wave energy linear power generation system prototype and a swing-plate wave-making system were built to explore the effects of different buoy sizes on the power generation performance of the system. The test results show that within the research scope of this paper, increasing the size of the buoy can effectively increase the wave energy conversion efficiency of the system and improve the power generation performance of the accelerated wave energy power generation system. The research results in this paper provide useful experience for the practical application and efficient operation of wave energy power generation systems.

scholarly journals Design of Reciprocating Wave Power Generation System

2021 ◽  
Vol 651 (2) ◽  
pp. 022088
Author(s):  
Nan Ding ◽  
Junda Yang ◽  
Hanxiang Cheng ◽  
Qiangqin Dai
Keyword(s):  
Power Generation ◽  
Wave Power ◽  
Generation System ◽  
Power Generation System ◽  
Wave Power Generation

scholarly journals DEVELOPMENT OF WAVE POWER GENERATION SYSTEM SUITABLE FOR INNER BAY

2020 ◽  
pp. 39
Author(s):  
Rioko Hirota ◽  
Takaaki Shigematsu ◽  
Kenji Katoh ◽  
Tatsuro Wakimoto ◽  
Shinya Yoshioka
Keyword(s):  
Power Generation ◽  
Particle Velocity ◽  
High Energy ◽  
Wave Power ◽  
Generation System ◽  
Water Particle ◽  
Water Turbine ◽  
Power Generation System ◽  
The Relationship ◽  
Wave Power Generation

With the increasing demand for renewable energy in the world, research contributing to the improvement of the technology level of wave power generation is essential. The authors have been developed a wave power generation system using port facilities in inner bays with high energy-consuming cities. In this study, the relationship between the rotational characteristics of a Savonius water turbine and the water particle velocity was quantitatively evaluated under the calm conditions of the inner bay, such as wave motion, flow, and coexistence of wave and current. According to the experimental results, it is found that the relationship between the rotational circumferential speed and the water particle velocity of the water turbine installed in a wave field tends to be different from that in a flow field and is evaluated by different equations. In addition, the relationship between circumferential velocity and the water particle velocity has also been formulated when installed in a wave-current coexistence field.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/KX0XBFuao48

903 Research on Improvement in Efficiency of Wave Power Generation System by Applying Gyroscopic Moment

2010 ◽  
Vol 2010.85 (0) ◽  
pp. _9-3_
Author(s):  
Hiroshi KANKI ◽  
Teruyoshi OTOYO ◽  
Yuzuru KOBAYASHI ◽  
Shiro ARII ◽  
Kiichiro FUKUI
Keyword(s):  
Power Generation ◽  
Wave Power ◽  
Generation System ◽  
Gyroscopic Moment ◽  
Power Generation System ◽  
Wave Power Generation

Control of Grid-Side MMC for Wave Power Generation

2013 ◽  
Vol 860-863 ◽  
pp. 2342-2345
Author(s):  
Hong Wei Fang ◽  
Hui Min Chu
Keyword(s):  
Power Generation ◽  
Control Strategy ◽  
Wave Power ◽  
Generation System ◽  
Loop Control ◽  
Power Generation System ◽  
Grid Side ◽  
The Mathematical Model ◽  
Balancing Control ◽  
Wave Power Generation

The mathematical model of grid-connected wave power generation system based on modular multilevel converter (MMC) is deduced with topology structure and the operation principle of the MMC analyzed in this paper. Then the corresponding current decoupling control strategy is obtained in dq coordinates. Simultaneously, averaging voltage control and voltage balancing control are used to control the MMC to solve the imbalance and the ripple of the capacitor voltage of sub-modules. Moreover, the double closed-loop control strategy is used to control the grid-side MMC. Finally, the simulation model of grid-connected wave power generation system based on MMC is built in Matlab/Simulink. The simulation is carried out to verify the effectiveness and feasibility of the proposed control strategy.

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