Phan Cong Binh

Investigation on optimization the performance of a wave energy converter using Dielectric electro-active polymers

This paper investigate the performance of a wave energy converter using Dielectric electro active polymer (DEAP). Firstly, the model of conventional DEAP generator is presented and validated by a simple test rig. Then, an antagonistic DEAP generator so-called energy capture unit (ECU) consists of two DEAP in antagonistic connection mode is analyzed and modeled. In order to increase the output energy, a new design of WEC is then developed with array of ECU. Moreover, the hydrodynamic forces are calculated under regular wave conditions by using the linear potential wave theory. Then, a complete analytical model of the proposed WECs using multiple ECU under hydrodynamic behavior is then obtained to investigate the performance of energy conversion. Finally, stretch ratio known as an important factor to efficiency and output power is investigated under the influence of the supplementary mass. The resonance behavior of the WEC with a typical wave frequency can also be tuned by controlling the inertia supplementary to increase the degree of utilization of the device. The efficiency of wave energy converter can reach 20% thanks to additional mass.

A study on wave energy converter using 5 cylinders system

Nowadays, wave energy plays an important role in renewable energy resource. In over thirty years, researches in wave energy converter system (WEC) have been deployed and carried out. This paper presents a design of wave energy converter using 5 cylinders combining with hydraulic power take-off system in order to convert the mechanical energy from ocean wave to electricity, or another useful and usable source. The WEC uses ordered 5 cylinders to represent the motion of the floating buoy under the wave elevation. The design and specification of the WEC system are presented. Buoy and wave interaction mathematical model is built and the hydraulic mathematical model is also presented. The system performance test is implemented and the result is shown.